Text

Proposed Tech Specs,Reflecting Removal of TSTF-115,as Well as Other Changes Identified by Plant Personnel
	ML20210K971
Person / Time
Site:	Calvert Cliffs
Issue date:	08/14/1997
From:	; BALTIMORE GAS & ELECTRIC CO.
To:	;
Shared Package
ML20210K959	List: ML20210K953; ML20210K971;
References
	NUDOCS 9708200178
	Download: ML20210K971 (162)
	v • d • e

.

c.

ATTACIIMENT (1)

I i

t IMPROVED TECIINICAL SPECIFICATIONS, REVISION 3 4

r 9708200178 970814 PDR ADOCK 05000317 P

PDR Haltimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant August 14,1997

1

' Page Replacement Instructicns ITS-Cenversi:n License Amendment Request VOLUME 12 Section 3.8 Note: Underlined titles match tabs in the wlume. Regarding CTS markups: Pages are referenced by citing the unit number as well as the specifcation number which is located in the upper right-hand corner of the pags l

Key:

DOC = Qiscussion OfChanges DOD = Discussion Of Technical Spec $ cation Deviation or Discussion OfBases Deviation REMOVE INSERT 05crview of Channes

-.None IIft 3.8.4 2 and 3.8.4 3 3.8.4 2 through 3.8.4 4 3.8.51 and 3.8.5 2 3.8.5 1 and 3.8.5-2--

3.8.61 through 3,8.6 5 3.8.61 through 3.8.6 6 ITS Bases B 3.8.4 1 B 3.8.4 1 B 3.8.4 6 through B 3.8.4 9 B 3.8.4-6 through B 3.8.41i B 3.8.51 through B 3.8.5 B 3.8.5-1 through B 3.8.5 4 B 3.8.6-1 through B 3.8.611 B 3.8.61 through B 3.8.6-8 CTS Markup & Discunnlon of Channes Spec @ cation 3.8.4 Unit i Cover Page Cover Page Page lof 4 through Page 4 of 4 Page lof 5 through Page 5 of 5 Spec @ cation 3.8.4 Unit 2 Cover Page Cover Page

' Page lor 4 through Page 4 of 4 Page lof 5 through Page 5 of 5 DOC 3.8.41 through 3.8.4 4 DOC 3.8.4-1 thrc: gh 3.8.4 5 Spec @ cation 3.8.3 Unit 1

- Cover Page Cover Page 1

Page1of1 Page1of1

- Spect) cation 3.8.3 Unit 2 Cover Page Cover Page Page1of1 Page1ofI DOC 3.8.51 through 3.8.5-3 DOC 3.8.5-1 through 3.8.5 4 i

j

Page lleplacenient Instructions ITS-Conversion License Aniendnient Ilequest VOLUME 12 Section 3.8 Note, Underlined titles match tabs in the volume. Regarding C7S markups: pages are rgerenced by citing the unit number as n ell as the specification number u hich is located in the upper right hand c orner of the page.

Key:

DOC - Discussion OfChanges DOD = Discussion Gf TechnicalSpectlicatwn Deviation or Discussion ofBases Deviatwn REMOVE INSEitT Specification 3.86 Unit i Cover Page Cover Page Page I of 7 through Page 7 of 7 Page I of II through Page 11 of 11 Specificarian 3.8 6 Umt 2 Cover Page Cos er Page Page 1 of 7 through Page 7 of 7 Page i of 1I through Page il of i1 DOC 3.8.6-1 through 3.8 6 5 DOC 3 8 6-1 through 3 8 6-5 NSIIC Finding 3.81 through 3 8 30 3.81 through 3.8 32 ISTS Markup & Justification 3 8-25 through 3 8-34 (including inserts) 3 8-25 through 3 814 DOD 3.8-1 through 3 8-5 DOD 3 81 through 3 8-6 ISTS llases Markup & Justification B 3.8 50 through B 3.8 69 (including inserts)

B 3%50 through B 3 8-69 (including inserts)

DOD 3.8-1 through 3 8 3 DOD 3 8-1 through 3 8-4 ii

DC Sources-Operating 3.8.4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.4.1 Verify battery terminal voltage is 2125 V 7 days l3 on float charge.

SR 3.8.4.2 Verify no visible corrosion at battery 92 days terminals and connectors.

}

8 M

Verify battery connection resistance is within limits.

SR 3.8.4.3 Verify battery cells, cell plates, and racks 18 months n

show no visual indication of physical damage 3

L.1 or abnormal deterioration that degrades performance.

SR 3.8.4.4 Remove visible terminal corrosion and verify 18 months battery celi to cell and terminal connections are coated with anti-corrosion material.

SR 3.8.4.5 Verify battery connection resistance is 18 months within limits.

SR 3.8.4.6 Verify each battery charger supplies 24 months 3

2 400 amps at 2 125 V for 2 30 minutes.

CALVERT CLIFFS - UNITS 1 & 2 3.8.4-2 Revision /3 J

DC Sources-0perating l

3.8.4 SURVEI!. LANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY I3 SR 3.8.4.7

NOTE-----------------..

The modified performance discharge test in SR 3.8.4.8 may be performed in lieu of the 3

service test in SR 3.8.4.7 once per 60 months.

24 months' Verify battery capacity is adequate to supply, and maintain in OPERABLE status, the required emergency loads for the design duty cycle when subjected to a battery service test.

CALVERT CLIFFS - UNITS 1 & 2 3.8.4-3 RevisionJIS

DC Sources-Operating 3.8.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.4.8 Verify battery capacity is 2 80% of the 60 months 3

manufacturer's rating when subjected to a performance discharge test or a modified AND 4

performance discharge test.

l' months when battery shows degradation or-has reached 85%

of the expected life with capacity

< 100% of manufacturer's rating AND 24 months when battery has reached 85% of the expected life with capacity 2 100% of manufacturer's rating CALVERT CLIFFS - UNITS 1 & 2 3.8.4-4 Revision)1j3 M,

DC Sources-Shutdown i

3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5-DC Sources-Shutdown LCO 3.8.5 The required channels of DC electrical sources shall be OPERABLE to support the DC electrical power distribution subsystem (s) required by LC0 3.8.10. " Distribution Systems-Shutdown."

i APPLICABILITY:

MODES 5 and 6, i

Duririg movement of irradiated fuel assemblies.

3 t.

l ACTIONS E

......__,.................___....----NOTE---- ---------. -....................

LCO 3.0.3 is not applicable.

3 CONDITION REQUIREDACTION COMPLETION TIME A.

One or more required A.1 Declare affected Immediately DC channels required feature (s) inoperable.

inoperable.

08 A.2.1 Suspend CORE Immediately ALTERATIONS.

-AND A.2.2 Suspend movement of Immediately irradiated fuel-assemblies.

AND CALVERT CLIFFS - UNITS 1 & 2 3.8.5-1 Revisionp',3

DC Sources-Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME A.

(continued)

A.2.3 Initiate action to Imediately l

suspend operations involving positive reactivity additions.

AND A.2.4 Initiate action to Imediately restore required DC l

i electrical power I

subsystems to OPERABLE status.

I SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.5.1

NOTE-------------------

The following SRs are not required to be performed:

SR 3.8.4.6, SR 3.8.4.7, and SR 3.8.4.8.

3 For DC sources required to be OPERABLE, the In accordance following SRs are applicable:

with applicable SRs SR 3.8.4.1 SR 3.8.4.4 SR 3.8.4.7 SR 3.8.4.2 SR 3.8.4.5 SR 3.8.4.8.

SR 3.8.4.3 SR 3.8.4.6

-CALVERT CLIFFS - UNITS 1 & 2 3.8.5-2 Revision /3

= Battery Cell: Parameters:

3.8.6 e

3.8 -ELECTRICAL-POWER' SYSTEMS'-

3.8.6 Battery Cell Parameters LCO 3.8.6 Battery cell parameters for the batteries shall be within the

. limits of-Table 3.8.6-1.-

g 3

Battery cell average electrolyte temperature for the -

batteries shall be within the required limit.

APPLICABILITY:

When associated DC electrical source channels are required to 1

-be OPERABLE.

I CALVERT CLIFFS'- UNITS-1 & 2-3.8.6-1 Revisionp'3 I. -. _. _.- - - -

......i...

Battery Cell Parameters 3.8.6 ACTIONS

-I

...............................-....-N0TE-.-----.- -.-........................

Separate Condition entry is allowed for each battery.

[

l CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more batteries A.1 Verify pilot cell (s)

I hour with one or more electrolyte level and battery cell individual cell float parameters not within voltage (ICV) meet Category A or B Table 3.8.6 1 l

limits.

Category C limits.

l 6!!D A.2 Verify battery cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 23 parameters meet l

Table 3.8.6 1 AND Category C limits.

Once per 7 days thereafter AND A.3 Restore battery cell 31 days parameters to Category A and B limits of Table 3.8.6-1.

CALVERT CLIFFS - UNITS 1 & 2 3.8.6-2 Revision /;3

Battery Cell Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. _ - Required Action and B.1 Declare associatect Immediately associated Completion battery inoperable.

Time of Condition A not met.

M One or more batteries with average l

electrolyte temperature of the 3

representative cells

< 69'F.

l E

One or more batteries with one or more battery cell parameters not within Category C limits.

3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.6.1 Verify battery cell parameters meet 7 days Table 3.8.6-1 Category A limits.

3 SR 3.8.6.2 Verify battery cell parameters meet 92 days 3

l Table 3.8.6-1 Category B limits.

CALVERT CLIFFS - UNITS 1 & 2 3.8.6-3 Revision g3

,.... =... -

~. -. _.. ~ -

4 r-Battery Cell Par'ameters

-3.8.6 SURVEILLANCEREQUIREMENTS(continued)

)

SURVEILLANCE FREQUENCY

)

L SRT3'.8. 6. 3 -:

Verify average electrolyte temperature of 92 days 3

representative cells is 2: 69'F.

4 i.

3 4

i s

3 i

b i-t

+

t 3-i T*

i L

4 bi:-

)

i' t

CALVERT CLIFFS - UNITS 1 & 2 3.8.6-4 Revisionf3 1.

1

Battery Cell Parameters 3.8.6 i

Table 3.8.6-1 (page 1 of 2)

Battery Surveillance Requirements CATEGORY A:

CATEGORY B:

CATEGORY C:

PARAMETER LIMITS FOR EACH LIMITS FOR EACH LIMITS FOR EACH DESIGNATED PILOT CONNECTED CELL CONNECTED CELL CELL Electrolyte Level

> Minimum level

> Minimum level Above top of indication mark, indication mark, plates, and not ands 1/4 inch ands 1/4 inch overflowing above maximum above maximum L

level indication level indication l

mark *I mark *)

I I

l l

t ICV 2 2.13 V 2 2.13 V 2 2.08 V 3

Specific 2 1.200 2 1.195 Not more than 0.020 Gravity )I'I below average ib AND connected cells Average of all AND connected cells 2 1.205 Average of all connected cells 2 1.195

(*)

1 It is acceptable for the electrolyte level to temporarily increase above

{

the specified maximum during and following equalizing charges provided i

it is not overflowing.

(b) 1 Corrected for electrolyte temperature and level. Level correction is f

not required, however, when battery charging current is < 1 amp when on i

float charge.

CALVERT CLIFFS - UNITS 1 & 2 3.8.6-5 Revisiong3

Battery Cell Parameters 3.8.6 Table 3.8.6-1(page2of2)

Battery Surveillance Requirements

("I A battery charging current of < 1 amp when on float cMrge is acceptable for meeting specific gravity limits following a battery recharge, for a 3

maximum of 7 days. When charging current is used to satisfy specific gravity requirements, specific gravity of each connected cell shall be measured prior to expiration of the 7-day allowance.

l CALVERT CLIFFS - UNITS 1 & 2 3.8.6-6 Revisiong3

DC Sources-Operating--

B 3.8.4 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.4 DC Sources-Operating BASES BACKGROUND The station DC sources provide the AC emergency power system with control power.

It also provides both motive and control power to selected safety related equipment and i

preferredACvitalbuspower(viainverters). As required by Updated Final Safety Analysis Report (UFSAR),

Appendix 1C Criterion 39 (Ref.- 1), the DC electrical power sources are designed to have sufficient independence, redundancy,.and testability to perform their safety l3 functions, assuming a single failure. The DC sources also conform to the.recomendations of Safety Guide 6 (Ref. 2) and IEEE-308-1978 (Ref. 3).

The 125 VDC electrical power sources consist of four-l

-independent and redundant safety related Class 1E DC channels. Each channel consists _of one 125 VDC battery, the-associated battery charger for each battery, and all the associated control equipment and interconnecting cabling.

During normal operation, the 125 VDC load is powered from the battery chargers with the batteries floating on the system.

In cases where momentary loads are greater than the charger capability, or a loss of normal power to the battery charger, the DC load is automatically powered from the station batteries.

The DC channels provide the control power for its associated Class 1E AC power load group, 4.16 kV switchgear,. and 480 V load centers. The DC channels also. provide a DC source to

-the inverters, which in turn power the AC vital buses.

The DC sources are described in more detail in the Bases for LC0 3.8.9, " Distributions System Operating," and for LC0 3.8.10. " Distribution Systems-Shutdown."

CALVERT CLIFFS - UNITS 1 & 2 8 3.8.4-1 Revision #3

DC Sources-Operating B 3.8.4 3ASES and maintain the battery in a fully charged state. The voltage requirements are based on the nominal design voltage of the battery (2.13 V per cell average) and are consistent with IEEE-450 (Ref. 9) and the initial state of charge conditions asst:med in the battery sizing calculations.

The 7 day Frequency is conservative when compared with l3 manufacturer recomendations and IEEE-450 (Ref. 9).

SR 3.8.4.2 Visual inspection to detect corrosion of the battery cells and connections, or measurement of the resistance of each cell to cell and terminal connection, provides an indication of physical damage or abnormal deterioration that could potentially degrade battery performance.

The limits established for this SR must be no more than 20%

above the resistance as measured during installation or not above the ceiling value established by the manufacturer.

The Surveillance Frequency for these inspections, which can detect conditions that can cause power losses due to resistance heating, is 92 days. This Frequency is considered acceptable based on operating experience related 3

to detecting corrosion trends.

SR 3.8.4.3 Visual inspection of the battery cells, cell plates, and battery racks provides an indication of physical damage or abnormal deterioration that could potentially degrade battery performance.

The presence of physical damage or deterioration does not necessarily represent a failure of this SR, provided an evaluation determines that the physical damage or i

l CALVERT CLIFFS - UNITS 1 & 2 B 3.8.4-6 Revisiong3

DC Sources-Operating B 3.8.4 BASES deterioration does not affect the OPERABILITY of the battery (its ability to perform its design function).

The 18 month Frequency is based on engineering judgement.

Operating experience has shown that these components usually pass the SR wher performed at the 18 month Frequency.

Therefore, the Frequency was concluded to be acceptable from a reliability standpoint.

SR 3.8.4.4 and SR 3.8.4.5 i

i Visual inspection and resistance measurements of cell to cell and terminal connections provide an indication of physical damage or abnormal deterioration that could indicate degraded battery condition.

The anticorrosion material is used to help ensure good electrical connections l

and to reduce terminal deterioration.

The visual inspection 3

for corrosion is not intended to require removal of and inspection under each terminal connection.

The removal of visible corrosion is a preventive maintenance SR. The presence of visible corrosion does not necessarily represent a failure of this SR provided visible corrosion is removed during performance of SR 3.8.4.4.

i The connection resistance limits for SR 3.8.4.5 shall be no more than 20% above the resistance as measured during installation, or not above the ceiling va'ue established by the manufacturer.

The 18 month Frequency for these SRs is based on engineering judgement. Operating experience has shown that these comoonents usually pass the SRs when performed at the 18 month Frequency. Therefore, the Frequency was concluded to be acceptable from a reliability standpoint.

1 CALVERT CLIFFS - UNITS 1 & 2 B 3.8.4-7 Revision p'3

DC Sources-0perating' B 3.8.4 BASES SR 3.8.4.6 3

This SR requires that each battery charger be capable of 3

supplying 400 amps and 125 V for 2 30 minutes. These requirer.ients are based on the output rating of the chargers (Ref.4). According to Regulatory Guide 1.32 (Ref.10), the battery charger supply is required to be based on the largest combined demands of the various steady state loads l

and the charging capacity to restore the battery from the design minimum charge state to the fully charged state, irrespective of the status of the unit during these demand occurrences. The minimum required amperes and duration ensures that these requirements can be satisfied.

The test l

is performed while supplying normal DC loads or an 3

l equivalent or greater dummy load.

The Surveillance Frequency is acceptable, given the unit conditions required to perform the test and the other administrative controls existing to ensure adequate ch&rger performancc. during these 24 month intervals.

In addition, this Frequency is intended to be consistent with expected fuel cycle lengths.

SR 3.8.4.7 l3 A battery service test is a special test of battery capability, as found and with the associated battery charger disconnectei, to satisfy the design requirements (battery duty cycle) of the DC source. The test duration must be 3

2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and battery terminal voltage must be maintained 2105 volts during the test.

The discharge rate and test length should correspond to the design accident load (duty) cycle requirements as specified in Reference 4.

A dummy load simulating the emergency loads of the design duty cycle may be used in lieu of the actual emergency loads.

The Surveillance Frequency of 24 months is consistent with expected fuel cycle lengths.

l3 CALVERT CLIFFS - UNITS 1 & 2 B 3.8.4-8 Revision F' 3

___j

DC Sources-Operating 8 3.8.4 BASES This SR is modified by a Note. The Note allows the performance of a modified performance discharge tett in lieu l

of a service test once per 60 months. This substitution is I

acceptable because a modified performance discharge test 3

represents a more severe test of battery capacity than i

SR 3.8.4.7.

SR 3,8.4.8 l3 A battery performance discharge test is a test of constant current capacity of a battery after having been in service, to detect any change in the capacity determined by the acceptance test. The test is intended to determine overall battery degradation due to age ar.d usage.

l A battery modified performance discharge test is a simulated l

duty cycle consisting of just two rates; the one minute rate L

published for the battery or the largest current load of the

}

duty cycle, followed by the test rate employed for the performance discharge test, both of which envelope the duty cycle of the service test.

Since the ampere-hours removed by a rated one minute discharge represents a very small portion of the battery capacity, the test rate can be changed to that for the performance test without compromising the results of the performance discharge test.

The battery terminal voltage for the modified performance discharge test shocid remain above the minimum battery terminal voltage specified in the battery performance 3

discharge test for the duration of time equal to that of the performance discharge test.

A modified performance discharge test is a test of the battery capacity and its ability to provide a high rate, short duration load (usually the highest rate of the duty cycle).

This will often confirm the battery's ability to meet the critical period of the load duty cycle, in addition to determining its percentage of rated capacity.

Initial conditions for the modified performance discharge test CALVERT CLIFFS - UNITS 1 & 2 B 3.8.4-9 Revision A 3

DC Sources-Operating B 3.8.4 BASES should be identical to those specified for a service test.

3 Either the battery performance discharge test or the modified performance discharge test is acceptable for satisfying SR 3.8.4.8; however, only the modified performance discharge test may be used to satisfy SR 3.8.4.8 while satisfying the requirements of SR 3.8.4.7 at the same 3

time.

L The acceptance criteria for this Surveillance are consistent withIEEE-450-(Ref.9)andIEEE-485(Rcf.5). These l

references recommend that the battery be replaced if its l

capacity is below 80% of the manufacturer rating. A l;

capacity of 80% shows that the battery rate of deterioration is increasing, even if there is ample capacity to meet the load requirements.

The Surveillance Frequency for this test is norn. ally l

t 60 months.- If the battery shows degradation, or if the f

battery has reached 85% of its expected life and capacity is

< 100% of the manufacturer's rating, the Surveillance-l Frequency is reduced to 12 months.

However, if the battery l

shows no degradation but has reached 85% of its expected

]

life, the Surveillance Frequency is only reduced to 24 months for batteries that retain capacity 2100% of the manufacturer's rating. Degradation is indicated, according to IEEE-450 (Ref. 9), when the battery capacity drops by more than 10% relative to its capacity on the previous performance test or when it is 2 10% below the manufacturer's rating. These Frequencies are consistent withtherecommendationsinIEFE-450(Ref.:9).

REFERENCES 1.

UFSAR, Appendix IC 2.

Safety Guide 6 3.

IEEE-308-1978 4.

UFSAR, Chapter 8 CALVERT CLIFFS - UNITS 1 & 2 B 3.8.4-10 Revision / 3

.DC Sources-Operating-B3.8.4(_

- BASES-l

5. -- IEEE-485-1983; June-1983 l

6.

-UFSAR, Chapter 6 i

7.. UFSAR -Chaptar 14 8.-

Regulatory Guide 1.93 December 1974 9.

IEEE-450-1995

10. Regulatory Guide 11.32, February 1977 k

a 9-e

_CALVERT CLIFFS - UNITS-1 & 2 8 3.8.4-11 Revision 0 1_iu

DC Sources-Shutdown B 3.8.5 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.5 DC Sources-Shutdown BASES BACKGROUND A description of the DC sources is provided in the Bases for LC0 3.8.4, "DC Sources-Operating."

APPLICABLE The initial conditions of Design Basis Accident (DBA) and SAFETY ANALYSES transient analyses in the Updated Final Safety Analysis Report (UFSAR), Chapter 6 (Ref. 1) and Chapter 14 (Ref. 2),

assume that Engineered Safety Feature systems are OPERABLE.

The DC sources provide normal and emergency DC for the l3 diesel generators, emergency auxiliaries, and control and switching during all MODES of operation.

The OPERABILITY of the DC subsystems is consistent with the initial assumptions of the accident analyses and the requirements for the supported systems' OPERABILITY.

The OPERABILITY of the minimum DC sources during MODES 5 and 6 and during movement of irradiated fuel assemblies l3 ensures that:

The unit can be maintained in the shutdown or refueling a.

condition for extended periods; b.

Sufficient instrumentation and control capability is available for monitoring and maintaining the unit status; and c.

Adequate DC sources are provided to mitigate events postulated dering shutdown, such as a fuel handling accident.

CALVERT CLIFFS - UNITS 1 & 2 B 3.8.5-1 Revision 93

DC Sources-Shutdown B 3.8.5 BASES The DC sources satisfy 10 CFR 50.36(c)(2)(ii), Criterion 3.

LCO The DC channels, each channel consisting of one battery, one battery charger, and the corresponding control equipment and interconnecting cabling within the chanel, are required to be OPERABLE-to support required trains of distribution systems required OPERABLE by LC0 3.8.10. " Distribution l

Systems-Shutdown." This ensures the availability of l

sufficient DC sources to operate the unit in a safe manner l

and to mitigate the consequences of postulated events during l-shutdown (e.g., fuel handling accidents).

APPLICABILITY The DC sources required to be OPERABLE in MODES S and 6, and y

during movement of irradiated fuel assemblies orovide assurance that:

I Required features needed to mitigate a fuel handling-a.

accident are available; b.

Required features necessary to mitigate the effects of events that can lead to cora damage during shutdown are available; and c.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cc'd shutdown condition or refueling condition.

The DC channel requirements for MODES 1, 2, 3, and 4 are covered in LC0 3.8.4.

ACTIONS LC0 3.0.3 is not applicable while in MODE 5 or 6..

However, since irradiated fuel assembly movement can occur in MODE 1 2, 3, or 4, the ACTIONS have been modified by a Note stating-3 i

that LC0 3.0.3.is not applicable.

If moving irradiated fuel assemblies while in MODE 5 or 6. LC0 3.0.3 would not specify i

CALVERT CLIFFS - UNITS 1 & 2 8 3.8.5-2 Revision 9'3 l

I

DC Sources-Shutdown B 3.8.5 I

BASES any action.

If moving-irradiated fuel assemblies while-in MODE 1, 2, 3, or 4, the fuel movement is independent of reactor operations. Therefore, in either case, the 3

inability to suspend movement of irradiated fuel assemblies would not be sufficient reason to require a reactor shutdown.

l A.1. A.2.1. A.2.2. A.2.3. and A.2d l

If two trains are required per LC0 3.8.10, the remaining train with DC power available may be capable of supporting sufficient systems to allow continuation of CORE ALTERATIONS and fuel movement.

By allowing the option to declare required features inoperable with the associated DC power i

source (s) inoperable, appropriate restrictions will be 4

implemented in accordance with the affected required features LC0 ACTIONS.

In m6ny instances, this option may-involve undesired administrative efforts.

Therefore, the allowance for sufficiently conservative actions is made

-(i.e.,tosuspendCOREALTERATIONS,movementofirradiated fuel assemblies and operations involving positive reactivity l3 additions). The Required Action to. suspend positive--

reactivity. additions does not preclude actions-to maintain or increase reactor vessel inventory, provided the required SDM is maintained.

Suspension of these_ activities shall-not preclude completion-of actions to establish a safe conservative condition.

These actions minimize probability of the occurrence of postulated events.

It is further required to imediately initiate action to restore the required DC channels snd.to continue this action until restoration is accomplished in order to provide the necessary DC source to the unit safety systems.

The Completion Time of immediately is consistent with the required times for actions requiring prompt attention. The restoration of the required DC channels should be completed as quickly as possible in order to minimize the time during 1

'i CALVERT CLIFFS - UNITS 1 & 2 B 3.8.5-3 RevisionJ/3

-)

DC Sources-Shutdown B 3.8.5 BASES which the unit safety systems may be without sufficient power.

SURVEILLANCE SR 3.8.5.1 REQUIREMENTS SR 3.8.5.1 states that Surveillances required by SR 3.8.4.1 through SR 3.8.4.8 are applicable in these MODES.

See the corresponding Bases for LCO 3.8.4 for a discussion of each SR.

This SR is modified by a Note. The reason for the Note is 23 to preclude requiring the OPERABLE DC sources from being discharged below their capability to provide the required l

power supply or otherwise rendered inoperable during the performance of SRs.

It is the intent that these SRs must still be capable of being met, but actual performance is not required.

REFERENCES 1.

UFSAR, Chapter 6 2.

UFSAR, Chapter 14 3.

IEEE-450-1995 CALVERT CLIFFS - UNITS 1 & 2 8 3.8.5-4 Revision #3

Battery Cell Parameters 3

8 3.8.6 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.6 Battery Cell Parameters BASES BACKGROUND This LCO delinettes the limits on electrolyte temperature, level, individual cell float voltage (ICV), and specific 3

gravity for the DC power source batteries.

A discussion of these batteries and their OPERABILITY requirements is l

provided in the Bases for LC0 3.8.4, "DC Sources-Operating,"

and LC0 3.8.5, "DC Sources-Shutdown."

{

l APPLICABLE The initial conditions of Design Basis Accident (DBA) and SAFETY ANALYSES transient analyses in the Updated Final Safety Analysis Report (UFSAR), Chapter 6 (Ref. 1) and Chapter 14 (Ref. 2),

assume Engineered Safety Feature systems are OPERABLE.

The DC sources provide normal and emergency DC electrical power 3

for the diesel generators, emergency auxiliaries, and control and switching during all MODES of operation.

The OPERABILITY of the DC channels is consistent with the initial assumptions of the accident analyses and is based upon meeting the design basis of the unit, as discussed in the Bases for LCO 3.8.4 and LC0 3.8.5.

Battery cell parameters satisfy Criterion 3 of the NRC 3

Policy Statement.

LC0 Bcttery cell parameters must remain within acceptable limits 3

to ensure availability of the required DC power to shut down the reactor and maintain it in a safe condition after an anticipated operational occurrence or a postulated DPA.

Electrolyte limits are conservatively established, allowing 3

i CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-1 Revision /3

Battery Cell Parameters l3 B 3.8.6 BASES continued DC electrical system function even with Category A 3

or B limits not met.

i APPLICABILITY The battery parameters are required solely for the support l

of the associated DC electrical power subsystems.

Therefore, battery electrolyte is only required when the DC power source is required to be OPERABLE.

Refer to the Applicability discussion in the Bases for LCO 3.8.4 and LC0 3.8.5.

h.

ACTIONS The > > enns Table is modtfied by a Note which indicates that separate Condition entry is allowed for each battery.

This is acceptable, since the Required Actions for each Condition provide appropriate compensatory actions for each inoperable DC channel. Complying with the Required Actions for one inoperable DC channel may allow for continued operation, and subsequentinoperableDCsubsystem(s)aregovernedby separate Condition entry and application of associated Required Actions.

A.I. A.2.1. A.2.2. and A.3 With parameters of one or more cells in one or more batteriesnotwithinlimits(i.e.,CateCoryAlimitsnotmet 3

or Category B limits not met) but within Category C limits specified in Table 3.8.6-1, the battery is degraded but there is still sufficient capacity to perform the intended function. Therefore, the affected battery is not required to be considered inoperable solely as a result of Category A or B limits not met, and continued operation is permitted 3

for a limited period.

The pilot cell electrolyte level and ICV are required to be verified to meet the Category C limits within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 3

(RequiredActionA.1). This check will provide a quick indication of the status of the rema.ider of the battery

)

l CALVERT CLIFFS - UNITS

&2 B 3.8.6-2 Revision /3 i

Battery Cell Parameters l 3 B 3.8.6 BASES cells. One hour provides time to inspect the electrolyte level and to confirm the ICV of the pilot cells.

One hour l3 is considered a reasonable amount of time to perform the required verification.

Verification that the Category C limits are met (Required ActionA.2)providesassurancethatduringthetimeneeded 3

to restore the parameters to the Category A and B limits, the battery will still be capable of performing its intended function. A period of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months is allowed to complete the initial verification because specific gravity measurements l3 I

must be obtained for each connected cell.

Taking into consideration both the time required to perform the required verification and the assurance that the battery cell 3

parameters are not severely degraded, this time is considered reasonable. The verification is repeated at 7 day Intervals until the parameters are restored to Category A and B limits. This periodic verification is 3

consistent with the normal Frequency of pilot cell Surve111ances.

Continued operation prior to declaring the affected batteries inoperable is permitted for 31 days befcre battery 3

cell parameters must be restored to within Category A and B limits. With the consideration that, while battery capacity is degraded, sufficient capacity exists to perform the intended function and to allow time to fully restore the battery cell parameters to normal limits, this time is acceptable prior to declaring the battery inoperable, u

13 With one or more batteries with one or more battery cell 3

parameters outside the Category C limit for any connected cell, sufficient capacity to supply the maximum expected load requirement is not assured and the corresponding DC channel must be declared inoperable. Additionally, other potentially extreme conditions, such as any Required Action l3 CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-3 Revision 9'3

Battery Cell Parameters 3

8 3.8.6 BASES of Condition A and associated Completion Time not met or average electrolyte temperature of representative cells 3

< 69'F, are also cause for insnediately declaring the associated OC channel inoperable.

SURVEILLANCE SR 3.8.6.1 REQUIREMENTS This SR verifies that Category A battery cell parameters are -

consistent with IEEE-450 (Ref. 3), which reconenends regular battery inspections (at least one per month) including 3

voltage, specific gravity, and electrolyte temperature of pilot cells.

SR 3,8.6.2 The quarterly inspection of specific gravity and voltage is ~ 3 consistentwithIEEE-450(Ref.3).

SR 3.8.6.3 3

This Surveillance verification that the average temperature of representative cells is > 69'F is consistent with a recommendationofIEEE-450(Ref.3),whichstatesthatthe temperature of electrolytes in representative cells should be determined on' a quarterly basis. The temperature is also 3

high enough to supply the required capacity.

Lower than normal temperatures act to inhibit or reduce battery capaci_ty.

This SR ensures that the operating temperatures remain within an acceptable operating range.

This limit is based on manufacture reconinendations.

CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6 4 Revisiongj

Battery Cell Parameters l3 B 3.8.6 BASES IAble 3.8.6-1 3

This Table delineates the limits on electrolyte level. ICV, and specific gravity for three different categories. The meaning of each category is discussed below.

Category A defines the normal parameter limit for each designated pilot cell in each battery.

The cells selected as pilot cells are those whose temperature, voltage and electrolyte specific gravity approximate the state of charge of the entire battery.

The Category A limits specified for electrolyte level are l

based on manufacturer recommendations and are consistent withtheguidanceinIEEE-450(Ref.3),withtheextra1/4 inch allowance above the high water level indication for operating margin to account for temperatures and charge effects.

In addition to this allcwance Footnote (a) to Table 3.8.6-1 permits the electrolyte level to be 3

temporarily above the specified maximum level during and following equalizing charge (i.e., for up to 3 days following the completion of an equalize charge), provided it is not overflowing. These limits ensure that the plates suffer no physical damage, and that adequate electron transfer capability is maintained in the event of transient conditions.

IEEE-450 (Ref. 3) recommends that electrolyte level readings should be made only after the battery has been at float charge for at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

The Category A limit specified for ICV is 2 2.13 V per cell. This value is based on a rec:mmendation of IEEE-450 (Ref.3),whichstatesthatprolongedoperationofcells

< 2.13 V can reduce the life expectancy of cells.

The Category A limit specified for specific gravity for each pilot cell is 21.200(0.015 below the manufacturer fully-charged nominal specific gravity or a battery charging currentthathadstabilizedatalowvalue).

This value is characteristic of a charged cell with adequate capacity.

CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-5 Revision g3

Battery Cell Parameters l3 8 3.8.6 BASES According to IEEE-450 (Ref. 3), the specific gravity readings are based on a temperature of 77'F (25'C) and full electrolyte level.

The specific gravity readings are corrected for actual l

electrolyte temperature and level.

For each 3'F (1.67'C) above 77'F (25'C),1 point (0.001) is added to the reading 1 point is subtracted for each 3'F below 77'F. The specific gravity of the electrolyte in a cell increases with a loss of water due to electrolysis or evaporation.

Category B defines the normal parameter limits for each connected cell._ The term " connected cell" excludes any battery cell that may be jumpered out.

The Category B limits specified for electrolyte level and j

ICV are the same as those specified for Category A and have l

been discussed above. The Category B limit specified for specific gravity for each connected cell is 2 1.195 (0.020 below the manufacturer fully charged, nominal specific 3

gravity) with the average of all connected cells 2 1.205 (0.010 below the manufacturer fully charged, nominal specificgravity).

These values are based on manufacturer's recommendations. The minimum specific gravity value required for each cell ensures a cell with a marginal or unacceptable specific gravity is not aasked by averaging cells having higher specific gravities.

Category C defines the limit for each connected cell.

These values, although reduced, provide assurance that sufficient capacity exists to perform the intended function and maintain a margin of safety. When any battery parameter is outside the Category C limit, the assurance of sufficient capability described above no longer exists and the battery must be declared inoperable.

The Category C limit specified for electrolyte level (above the top of the plates and not overflowing) ensures that the plates suffer no physical damage and maintain adequate CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-6 Revision f 3

pKN4Nke*5R5eBM">

jp '

f. ih BatteryCellParameters!3 Q

B 3.8.6 bc =

BASES electron transfer capability.

The Category C limit for ICV is derived from IEEE-450 recommendations (Ref. 3), which states that a cell voltage of 2.07 Y or below, under float conditions and not caused by elevated temperature of the cell, indicates internal cell problems and may require cell replacement.

The Category C limit of average specific gravity 21.195 is based on manufacturer recommendations (0.020 below the manufacturer recommended fully charged, nominal specific gravity).

In addition to that limit, it is required that the specific gravity for each connected cell must be no less than 0.020 below the average of all connected cells. This limit ensures that a cell with a marginal or unacceptable specific gravity is not masked by averaging with cells having higher specific gravities.

The footnotes to Table 3.8.6-1 are applicable to Category A, B, and C specific gravity.

Footnote (b) to Table 3.8.6-1 requires the above mentioned correction for electrolyte 3

level and temperature, with the exception that level correction is not required when battery charging current is

< 1 amp on float charge. This current provides, in general, an indication of acceptable overall battery condition.

Because of specific gravity gradients that are produced during the recharging process, delays of several days may occur while waiting for the specific gravity to stabilize.

A stabilized charging current is an acceptable alternative to specific gravity measurement for determining the state of charge. This phenomenon is discussed in IEEE-450 (Ref. 3).

Footnote (c) to Table 3.8.6-1 allows the float charge current to be used as an alternate to specific gravity for up to 7 days following a battery equalizing recharge.

Within 7 days, each connected cell's specific gravity must be measured to confirm the state of charge.

Following a minor battery recharge (such as equalizing charge that does not follow a deep discharge) specific gravity gradients are CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-7 Revision / 3

BatteryCellParametersl3 8 3.8.6 BASES not significant, and confirming measurements may be made in less than 7 days, 3

REFERENCES 1.

UFSAR, Chapter 6 2.

UFSAR, Chapter 14 3.

IEEE-450-1995 CALVERT CLIFFS - UNITS 1 & 2 B 3.8.6-8 Revision /3

r Specification 3.8.4 Unit 1 a

\\

h 4

e i

~

q w

~

--w v.

w.

p-,-

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. _ _ _ _.~.

Sp.tiftb 3 6.$

1 1$

4/44. ELECTt! CAL POWtt $YSTDt$

4/' ?.?

O !!! """*: 0:=:^ ^ :

~ 7'!*"I 4

3, g,4 D.c. u,n.@._'-

. Doeratino l

4

(

l cledt.c lp.aee g4 ll k-LIMITING CONDITION FOR OPERATION oprinta

-u_ c - --

..........................-i_.....t.uu_____...M_-__..i.g._.

....<.,n_.m

.1 g,4 a.

25 volt D.C. bus no. T Jthe associated Izz volt D.c battery H r6r as necessa thn Reserve Battery, and one a clatedfull capacity charger.

b.T.ars voit D.C. bus No.1D the associated 125 vo D.C. battery

.nn or as ne sary the Reserve Battery, and e essociated full h

capacity ch er.

g

c. tirt-volt D.C bus RO. ID the assoClated volt D.C. batte charger. y the Reserve Battery 3

Dant or s necessar and one associated ull capac i "S. *l

d. 025 volt D.C. bus No. fB the assoc ed 125 volt D.C e

or as aecessary the Reserve tery, ar.d one asso. battery ciated ful g

3 acity charger.

9

5 APPLICABILITYs M00ts 1. 2. 3 and 4.

,% be rina,F dm 4

s

$j E!Mi s, p,f..... s,4,9,

A.L4+=

c 8.h op.k a 9

s.

With one IRS volt bus inoperable, restore the inoperable bus to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least NOT STANOBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SWTDOWW within the followin 0 hours0 days 0 hours 0 weeks 0 months .f A With one its-volt D.C. battery inoperable and the associated 125-volt D.C. bus not being supplied by the Reserve Battery pe)NM E 1

A m ps A

% Restore the i rable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or rep ace the inoperable batter

' Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , y with the OPERABLE u

or I

A le in at least NOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in Aer,w c, COLD SWTDOWN wtthin the ic110 wing 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

f 1

CALVERT CLIFF $ - UNIT 1 3/4813 Amen &nent No.183' l

I l

1

(..

pay

t cikEt*Nor S.%.Y A.l

@ ELECTRICAL POWER SYJJijg, LIMITING CONDITION FOR OPERATION (Continued)

$(With both 125 volt battery chargers from the same D.C. bus inoperable

. wn necessar durin urveillyte testiw ped

$.2,

$ Ex Ec 5

fica on 4.8.2 2 d l erestore at least one Iz5 volt L

DT..~ battery charger to CP[RAILE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STAN0lY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD Ac.Tio*J C. -

$HUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

fl. Durf g surveil ance testing pe Specificatio

.8.2.3.2.

1

= re ore at i st one 125-vol

.C. battery arger to

.L RABtt st us within 4 h s or be in a leastHOTj DBY ithin 6

urs and in COLD SHUTDOWN within the follow ng.

30 hour3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months sy (d. 'With single cells having a voltage decrease of more than f

0.10 volts.from the previous perfomance discharce test (4.8.2.3.2.f) value, but still t 2.10 volts per lurveillance Requirement 4.8.2.3.2.b.1. either restore / replace cells-or replace the affected battery with the Reserve Battery within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in HOT STANDBY within the next 6' hours and in COLD

$11UTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

5, h u..'(kbg&

, p. '. A e.J..te st p as 4.n ", t e

1.t. 4 e.y SURVE!LLANCE REQUIREMENTS Q.2.31 Each D.C. bus train shall De detemined OPEMBLE and energize at 1(ast once per 7 days by verifying correct breaker alignment and

.,(ndicatedpoweravailabilisy_y N Each 125-volt battery bank and charger and the Reserve Battery

~

fshall be demonstrated OPEMBLE:

Sl ".MI

~

(Ep At least once per 7 days by verifying that:

(T 3e electrolyte level of each pilot cell is between the minimum and maximum level indication marks.

2.

The pilot cell specific gravity, corrected to 77'F and full electrolyte level is t 1.200.

S e, -hswub i* CL

.g &

Sp s!. A.

53.*t,' b+%he.

t h v. Qv %

p CALVERT CLIFFS. UNIT 1 3/4 8-14 Amendment No. 183

_l y 7 a# b l

u

ho c$c.Mi.,, .tr, 4 b.\\

@ ELECTRICAL POWER SY$ffMS SURVE!Lt.ANCE R[QUIREMENTS (Continued)

[ The pilot cell voltace is a 2.10 volt)

SR 5.t.41 I(4) The overall battery voltage is t 125 volts.

s,. the.. '

ct._k, 't., t et.. 4...

y l

s.-.das(pl M-M.

(b. At least once per ST~ days by verifying thh The voltage of each connected cell is t 2.10 volts under 1.

float charge and has not decreased more than 0.10 volts from the value observed during the latest perfortnance discharge test (4.8.2.3.2.f).

2. The specific gravity, corrected to 77T and full electrolyte level, of each connected cell is t 1.200 and has not decreased more than 0.02 from the value observed during the previous test.

3, The elettrolyte level of each connected cell is between the-nimum and maximum level indication marks.

@ At least once per 18 months by verifying thats s Mg) The cells, cell plates and b'attery racks show no visual

'h

$ g 3 g,q,

L indication of physical damge or_ deter ion

. vMNG.T.K.uai.iino-ceiT-ana terminai cch'neIIIons are 4

~

n

~

g coated with anti-corrosion material.

q W ?,.V,4,4 b'

h,4 At least once perEnths by verifying that the batt r capacity.(T<fyrTEFehIFDEFdutonnecetolis adequate to either:

e Supply and maintain in PPERABLE status all of the actual s

4d

~

is emergency loads ger wieut 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 3%g_thOttt subjectedto_abaMerJervicetetiu/ltyhacompl ce 4.. 3.2.e shal)be chargedbe perfom for r

t?fil ti survell The attery shall at/

-(b-9 the af ted batt N N '4O ~

least 5% caoaci in 5 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months g

~~ ~ " "

O' y afumy Wad simyrating th emergefipLig4MJL.tk 1c-) dGty evt eX8tJ1eiRT)(iouri_whiledn&la.tAlalM llte y

p*

7 itert temida valtafe g_1Diggl_tF. At t e completion o

)

lthQtest the batter shalT4 e char K to a east 9A d

\\repacity n _24 hours, excluding the t-tabiliza on time (g

@e emergenJf Toaas y the Cepgn outy fycle 5 411'be

-O j

lu.qtr SA

?M 2. </ SR 374 5

/

-k, gC

,[ [. [M,,

. d... A u h. g.

4 s i 0.' t.u. r.n n e c a ' ;: n '. O g Amendment No. 183 l

CALVERT cutts - UNu A

.5/4 6-n e

q,

._m_...

M 1

4 41 chp b.I. ll l

INSERT SR 3.8.4.2 and SR 3.8.4.5 i

l SURVEILLANCE FREQUENCY t

SR 3.0.4.2 Verify no visible corrosion at 92 days battery terminals and connectors.

OR Verify battery connection resistance is within limits.

4 i

SURVEILLANCE FREQUENCY SR 3.0.4.5 Verify battery connection resistance 18 months is within limits.

1 1

k a

.j l

1 snee e I

1

+

p.,_ 4 s 5

S p 6 r dies

'#.%, 9 4

@_.M H ECTRICAL POWER SYSTEMt

$URVEILLANCE REQUIREMENTS (Continued) and updat, as apprb inte, inM he syst

- L],5 d

[bmente dekipti tained FSAR Ch

8. and N date j

R (accorcaocew 10 CFR 5.71(e).

@ At least once per @kk the battery chargeNaTTT g

1 g g,.,y,q' y demonstrated ble of rechargingdeltitary at a rate of

'8*4 A

At supp}/ing, normal D.C/loadtdr egla13gLg)

Q3 ercdmy1 dr-

~(Q1 At least once per 60 months,by verifying that the battery

-k 150*~*'

A pacuy is at ieast un of the manufacturer's rating when

$ tt I T* D i

A$

I erfomance discharge test, fhis performiance--)

subjected to TT7E'yerfemed syttecijM to thysatisfador

/Tscnprgete

(

40mpletion o the requWed batter /servire tesy j

(L. ) (3 h

L l

\\

l k^^

\\p: a

?

n.

A s t.

Lui,3 b.s T " 4'

L,I d.,.

,1,.w g to s o,

(f a.tbe h k (, h tE

S.

P

,..s,u

..n,.. s

( \\ so ?,

.i m.J.. &.s o d (f.

~~

AMb LH< 3 7 4 r.wJ.

uw hs> rud.J K '4, eJ 4.

n u)

,,,d,f tr

.A e

e

? Ioo'y,

.(

e., e....A A <. < 's

]

l CALVERT Cliffs - UNIT 1 3/4 8-16 Amendment No. 183 77 su l

Specification 3.8.4 Unit 2 I

t i

I 4

e

S

..%4t..

Li'. 4 p

3g

@ JLECTRICAL POWER SYSTEMS

3. 7. d 2f4Ta mu n ytM D13TRIBUTIWPm siWo r

D.C.

I Arn - Operatino

{

,[

% oKaauf LIMITING CONDITION FOR OPERATION b--

l h*0 ?.tN (T.8Jf3_,Thedollowing p.t.. pyr tTTins spell be engPgizec an&srimlo[D

~

[(a.Y5-voltD.C.but No.ih,theasociated125-volt 0.C.batte bank or,4s necessary the Reser Battery, a one associat ful capaptychats b.

25-volt'O.C. bus the associat 12:i-volt D.. battery 1

bank or as jece m Reserve Bett y, and one sociated full

/g, g

/ capacity

/

arger.

c.

25-volt D.C. bus No. D, the as ciated 125 olt D.C. batt y ban r as necessary the Reser

Battery, d one associ

-d full capcitychargf.

d.

5._voltD.C.busNo32 e tasocia) d 125-volt D.. battery 3

bank or as necessary tb eserveBaptery,ando'nvassociatedfu aparlty charger APPLICABILITY: MODES 1. 2, 3 and 4

[',

'h ACTIO0 b

' 'T*

k'd "

s With'~ose~if57 volt bus inoperable, restore the inoperable bus t OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .j tQ With one 125-volt D.C. battery inoperable and the associated

- 125-volt D.C. bus not being supplied by _the Reserve Battery fpe bY.YY g,3 y (l. Restore the_ inoperable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . or replace the inoperable battery with the OPERABLE y

Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or f(g. Be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in g 04 L COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

~

-CALVERT CllffS - UNIT 2:

3/4-8 Amendment No. 160 l

lff

$pM1 M.Q 1

$I I

h ILECTRICAL POWER $_YSTEMS LIMITING CONDITION FOR OPERATION (Continued) l Q fkith both 125 volt battery chargers from the same D.C. bus l

inoperable:

N wo E h (uurc#t when necessaryAurin suf'Ven i nnet t esting4er}

gbl

=

Est C,

i f t rat 4n 4.8.24.2.d.

restore at least one 125 volt D'.C. battery charger tolf BLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least NOT STANDBY within thi next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD bcmco)C. -

$HUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

C Du ng surve llance testi per Specificat n 4.8.2.3.2 d.1, store at east one 12 volt D.C. batt charger to (g 'g PERABLE tatus withi 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or be at least H0 TANDBY within hours and i COLD SHUTDOWN tthin the f owing 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . f

(~~With singlp cells having a voltage decrease of more than 0.10 volts from the previous perfomance discharge test (4.8.2.3.2.f) value, but still 12.10 volts per Surveillance Requirement 4.8.2.3.2.b.1, either restore / replace cells or replace the affected battery with the Reserve Battery within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD)

SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

j Cu 'bt%wm eta f

q#. 3.. G 5.t6,' M eay>.s

(

**

I " ' '

$URVEILL NCE REQUIREMENTS

)

f i

'. 8'.' 2 3.1 Each U.c. Dus trUiIshill be detemined OPERABLE and energTIed at least once per 7 days by verifying correct breaker alignment and ndicated power availability.f

( f )5e demonstrated OPERABLE:Each 125-volt battery bank and charger and the Re 32 shit 1

$R ttA t (f) At least once per 7 days by verifying that:

Fi.~The electrolyte level of each pilot cell is between the7 minimum and maximum level indication marks.

2.

The pilot cell specific gravity, corrected to 77'T and full) electrolyte level is 11.200.

J 3e.

% ns..w J Gs.3.s La Sp,Ah.. L.T.)/t,* b W b C 65 - Op, Ag 7

CALVERT Cliffs - UNIT 2 3/48-14 Amtedment No. 160 g 2dI s

n

--,.+,-r-n.,,

,----,r

Spa.:fhM 3.1,9 A.I

@ ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) fihe pilot cell voltage is > 2.10 voltp s.

Aw.. #

( @ The overall battery voltage is 1 125 volts.

l

.g,q a -

cw,w.n..k u4. ce g. c. u least once per 92 days by verifying thQ t.w.

l 1.

The voltage of each connected cell is 12.10 volts under float charge and has not decreased more than 0.10 volts from t

the value observed during the latest perfonnance discharge test (4.8.2.3.2.f).

2.

The specific gravity, corrected to 77'T and full electrolyte level, of each connected cell is t 1.200 and has not decreased more than 0.02 from the value observed during the I

previous test.

i 3.

The electrolyte level of each connected cell is between the minimum and maximum 1.v.1 instention markt.

@ At least once per 18 months by verifying thats]

ITY) The cells, cell plates and battery racks show no visual M6 91_

L ignn at ehysical_dagg,pr d loration.

M y.g.wn.le_ t., s..1_w w.., <.. A ve,.

(f22 The cellao.Tcell arid teminal connections are (Eiptr. tSh_t}

/,

R M'y',4 affcoatedwithanti-corrosionmaterial.

t least once per @~ mon y verifying that the battery capacity,CwM'h tw cnarwr muennected) is adequate to either:

- A.4 Supply and maintai_n in OPERABLE status all of the actual emergency loads Enr'at Jiast # hatir en the battery is subjected to a battery service test. rat the comp etion oh I

this I t, suryt iiance 4.

z.3.2.e s all be per rmed r i--

L,

^

the cted b ery. Th attery all be ch ged to gg,q,3 __

_as 95% cap

_ty in 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months , y

($ (\\deston dut9 cyclTuppjy a dymy load' simulating the efneraandla* d thBLAS r at ast 2 hogrs shin mairMaininhthe)

(battery tentiinal y tage r

05 voltsf^t he com letion W

fthly testj the bJttery/exclud%e the tsjial'1 beJharged at I t 95 V acacitr in < M hourt b' liza 'on ti L.4 QhAemcVaencyIMdso}hedeWndukcyc%haXbef fg L

hr 5a.

1. e. s. 'a. J S[)1, TAT 2.

t

_L m.

g4~d' h*d

[L.

<bb..

A m.o p. O p,c,...

.C in se 13,99 w

He u, cf b 5,,,t.y 4<5+

4 T( s1M.7 g,. 40 mhs.

CALVERTCLIFFS-UIT2-3/4 8-15 Amendment No. 160 l

?*

h ** f

h ede fA M,4 INSERT SR 3.8.4.2 and SR 3.8.4.5 SURVEILLANCE FREQUENCY SR 3.8.4.2 Verify no visible corrosion at 92 days battery terminals and connectors.

90 Verify battery connection resistance A

is within limits.

SURVEILLANCE FREQUENCY-SR 3.8.4.5 Verify battery connection resistance 18 months is within limits.

Y w.

--)

w-f>6 l

s

Sp 4Nc lies 3.t.4 (9 Al

~

h ELECTRICAL'PWER SYSTEMS

$URVEILLMCE REQUIREMENTS (Continued) inte, in he sys

,5 nted d updated asakpr ption ained FSA Cha er 8. a pdate r

ce wit 10 CFR 5 71(e)j Ie. At least once per Mk. the battery charge @shalTbe h(

Q ',M.b "

demonstrated ble of recharging the

)at"ery at a ra"e of _

t 400 ampe supplylJw nomal D# loads Ef eau' valent $

A f3

tir dummy f

f.

At Itast once per 60 monthssby verifying that the battery

!!D1

[ rapacity is at least BM of the manufacturer's rating when N

sub,jected to a perfonnance discharge test hWpirfonnan

-i e

itTtn telt sti

-be per ea su que t

le sati cto hmp1 on of th eavited tery s vice te 7

o% niC 17 made, wk%

Edry

, 4,, _ c.

7 5E,-5 Ie p8dm v b*s uL p 4ed /

' ' emla) is *4 si

./

aquief d wi4x r..:

e loo 7, J

In.* A wed

,[ r o k...

[

Aub A.m 6 f4c 24 de

<,. A s m... A,

9.,

x.,

8

.e x(skeku(

v.% es(~stl3

007, of sun.4.J 4

h ot applicabl% the charger Rgociated with the Resye Battery.)

o i

CALVERT CLIFFS - UNIT 2 3/4 8 16 knendinent No.160 g 5 45

..y,...,.

.7-s,..

DISCUSSION OF CilANGES SECTION 3.8.4 o DC SOURCES o OPERATING Ai)ldlM1SIIRTIVE CilANCES AJ Th proposed change will refonnat, renumber, and reword the existing Technical Specincation,s, with no change of intent, to be consistent with NUREG.1432. As a result, ths Technice.1 Speclucat!ons should be more easily readable and, therefore, understandable by plant operators, as well as other users.

Durir.g the Calvert Cf:sfs ITS development, certain wording preferences or conventions were ador'ed which resuhed in no technical changes to the Technical Speel0 cations. Additional l

infecWien tray also he c been added to more fully describe cach LCO and to be consistent l

wida WPEG4 E I.bweser, the additional informrtion does not change the intent of the CTS. The referrn Athig, renumbering, and reword:ng process in olves no technical changes to existing Specidstions.

A.2 Current lechnical SpeclGcation 3.8.2.3 Action c.2 allows the required charger to be inoperable for four hours while perfonning the service test.

Improved Technical Specincation 3.8.2 will not contain this allowance. This allowance is no longer used because -

Nvert Cliffs has two chargers per battery, and also a reserve battery and charger. The 6cktion of an allowance which is no longer used constitutes an adminlu.ative change. His change is consistent "ith NUREG.1432. In conjunction with this change, the reference to this allowance in Ch 3.8.2.3 Actions b and c.l is being deleted.

A.?

Current Technical Speel0 cation 4.8.2.3.2.c requires that the battery charger be demonstrated i

capable of recharging the battery at a rate of s 400 amperes. The s sign is in error, and should be 2, as is indicated in ITS SR 3.8.4.b. Correcting a recognized error in the CTS is l considered an administrative change. This change is consistent with NUREO 1432.

A.4 Current Technical Speci0 cation SR 4.8.2.4.2.c requires the battery charger to recharge the battery at a rate of 2 400 amperes. Improved Technical Specification SR 3.8.4.b requires the battery charger to recharge the battery at a rate of 2 400 amps at 125 Volts for 2 30 minutes.

l ne addition of the voltage and time requirements is consistent with current plant practices cnd vendor recommendations. The addition of parameters that are currently part of the Surveillance procedures is an administrative change, l

A.5 Current Technical Speci0 cation 4.8.2.3.2.e requires a battery charger test to be performed l

and is modiG~l by an asterisk Note which states that this requirement is not applicabic to the charger associated with the reserve battery. The reserve battery is a spare qual 10ed battery that can be used to take the place of an inoperable battery such that four batteries are maintained OPERABLE. The reserve battery has its own charger. Ilowever, when the reserve battery is abgned to replace an inoperable battery, it utilizes the charger associated with the inoperable battery, improved Technical Specification LCO 3.8.4 requires four channels of DC electrical sources to be OPERABLE and the associated Bases denne an OPERABLE DC source channel as a battery and associated batte:y charger which is

. operating and connected to the associated DC bus (es). Since the battery charger for the reserve battery San not be credited with satisfying the requirements of LCO 3.8.4 (it does not 1

1 charge the reserve battery when the reserve battery is aligned to replace an inoperable

{

battery), testing of the reserve battery charger is not required, improved Techni:al j

Specification SR 3.0.1 states that Surveillances are not required to be performed on I

hoperable equipment, implicit in this is that Surveillances do not have to be performed on CALVERT CLIFFS - UNITS 1 & 2 3.8.41 Revision 3.

DISCUSSION OF CIIANGES SECTION 3.8.4 - DC SOURCES OPERATING equipment that is not used to satisfy the requirements of LCOs. Herefore, deletion of the asterisk Note to CTS 4.8.2.3.2.e is conadered to be administrative since the ITS do not require battery charger testing to be performed on the reserve battery charger.

TECilNICAL CllANGES MORE RESTRICTIVE M.1 Current Technical Specification SR 4.8.2.3.2.d requires the battery performance discharge test to be performed once per 60 months. Improved Technical Specification SR 3.8.4.8 l requires the battery performance test to be performed at the following intervals: (1) once per i

60 months; (2) once per 12 months when the battery shows degradation or has reached 85%

of the expected life with capacity < 100% of manufacturer's rating; and (3) 24 months when j

the battery has reached 85% of the expected life with capacity h 100% of manufacturer's rating. This change adds two Frequencies to the CTS battery service test. The added Frequencies are consistent with the requirements of Institute of Electrical and Electronics Engineers (IEEE)-450-1995.

The addition of new Frequencies, which decrease the Sunelllance interval, is considered a more restrictive change. This change will not adversely affect safety because it ensures that a degraded battery is tested more frequently to ensure it can perform it intended function. His change is consistent with NUREG 1432.

M.2 Current Technical Specification 4.8.2.3 2.c.2 requires verincation that cell to cell and terminal connections are clean, tight, and coated with anti corrosion material once per 18 months.

Improved Technical Speci0 cation SR 3.8.4.4 provides an additional requirement, to this Surveillance, to also remove visible terminal corrosion. Improved Technical Specification SR 3.8.4.2 and SR 3.8.4.5 are also added for the batteries, improved Technical Specification SR 3.8.4.2 ensures the connection resistance is within limits or tht.t no corrosion at the battery terminals is present once per 92 days.

Surveihance Requirement 3.8.4.5 ensures that connection resistance is whhin limits once per 18 months.

These changes represent additional restrictions on plant operation necessary to help ensure battery OPERADILITY is maintained.

TECIINICAL CIIANGES - RELOCATIONS None TECilNICAL CIIANGES. MOVEMENT OF INFQ[tMATION TO LICENSEE-CONTROLLED DOCUMENTS LA.1 Current Technical Specificatior,3.8.2.3 LCO lists the specific components that make up an Operable DC train. These include the 125 Volt DC Bus Nos. 11,12, 21, and 22, their associated battery bank or, as necessary, the Reserve Battery, and one associated full capacity charger. These items are being movsd out of Technical Specifications into Bases Section B 3.8.4 and B 3.8.9. The ITS LCO, which requires four channels of DC electrical power to be Operable and lists the specific components in the Bases, is adequate to ensure the appropriate DC sources remain 09erable to perform their intended function. The list of components which comprise a train of DC Sources is being moved to the Bases as part of the conversion to NUREG 1432. Any changes to these requirem..its will be in accordance with the Bases Control Program in Section 5.0 of the ITS. The Bases Control Program will ensure that any changes to these requirements will be appropriately reviewed. This change is consistent with NUREG-1432.

~

CALVERT CLIFFS UNITS 1 & 2 3.8.42 Revision 3

DISCUSSION OF CHANGES SECTION 3.8 4 o DC SOURCES - OPERATING LA.2 Not used.

l LA.3 Not used.

l LA.4 Not used.

l l

LA.5 Current Technical Specification SR 4.8.2.3.2.d.2 allows a dummy load simulating the emergency loads of the design duty cycle to be used for conduction of the perfonnance discharge test. Improved Technical Specification 3.8.4 will not contain this allowance. The requirement which enables the use of a dummy load is being moved to Section B 3.8.4 of the i

ITS 11ases. This is acceptable because the specific requirement on where the load comes from does not impact the requirement to verify that the battery performs as required when the performance discharge test is being conducted. This allowance can be adequately

[

controlled in the Bases which require change control in accordance with Bases Control Program in ITS Section 5.0. This approach provides an efTective level of regulatory control, 1

and provides for a more appropriate change control process. The level of safety of facility operation is unaffected by the change because there is no change in the requirement to verify that the battery can meet the acceptance criteria when a perfonnance discharge test is conducted. Furthermore, NRC and Calvert Cliffs resources associated with processing i

license amendments to these requirements will be reduced. This change is a less restrictive movement of infonnation change with no impact on safety. This change is consistent with NUREG1432.

LA.6 Detai!s associated with the performance of the battery charger test (in CTS 4.8.2.3.2.c) and the battery service test (in CTS 4.8.2.3.2.d) are relocated to the ITS Bases. These details are procedural in nature and are not necessary to be included in the ITS to ensure the OPERABILITY of the batteries or associated battery chargers. The requirements of ITS 3.8.4 and the associated Surveillance Requirements (specifically ITS SR 3.8.4.6 and SR 3.8.4.7) for the batteries and chargers are adequate to ensure the batteries and chargers are maintained OPERABLE, Changes to the ITS Bases are controlled by the provisions of the Bases Control Program described in Chapter 5 of the ITS.

TECIINICAL CilANGES - LESS RESTRICTIVE L.1 Current Technical Specification SRs 4.8.2.3.2.d and 4.8.2.3.2.f require the performance of the battery service test and the battery performance discharge test, respectively. 'Ihe ITS (SR 3.8.4.8) will allow the performance of a performance discharge test or a modified performance discharge test. This SR is modified by a Note which allows credit to be taken, once per 60 months, for the service test when the modified performance test is performed.

The modified performance discharge test encompasses both the performance discharge test and the service test-The modified discharge test is a test of the battery capacity and its ability to provide a high rate, short duration load (usually the highest rate of the duty cycle).

This will often confirm the battery's ability to meet the critical period of the load duty cycle, in addition to determining its percentage of rated capacity (verified by the performance discharge test to detennine overall battery degradation due to age and usage), initial conditions for the modified perfontance discharge test should be identical to those specified for the service test, and the test discharge rate must envelope the duty cycle of the service test. The addition of an optional test which encompasses both the service test and CALVERT CLIFFS - UNITS 1 & 2.

3.8.4-3 Revision 3

DISCUSSION OF CHANGES SECTION.3 8.4 - DC SOURCES. OPERATING performance discharge test constitutes a less restrictive change.

in addition, the CTS 4.8.2.3.2.f requirement to perform the perfonnance discharge test subsequent to the satisfactory completion of the battery service test is deleted since there is no reason to perform two discharge tests in a particular order. He service test is a test which ensures the j

battery will perform as required in the accident analysis. The perfonnar.cc discharge test is a i

design test of the battery. Since the se vice test demonstrates proper OPERABILITY, there is no reason to require the performance test to be performed subsequent to the service test.

This change is consistent with NUREG 1432, 1

L.2 Current Technical Specl0 cations 4.8.2.3.2.c and 4.8.2.3.2,d establish 18 inonths as the required Frequency for performance of following SRs (listed by ITS SR number):

I improved Technical Specification SR 3.8.4.5 (Verification of battery charger capacity in CTS 4.8.2.3.2.c);

Improved Technical Specification SR 3.8.4.6 (Performance of battery service test in CTS 4.8.2.3.2.d);

Improved Technical Speel0 cation will extend the required Frequency for these SRs to 24 months. Therefore, the Surveillance Test Interval for these 3Rs is being increased from once every 18 months to once every 24 months for a maximum interval of 30 months including the 25% gracc period.

The purpose of these tests is to ensitre the availability of necessary power to ESF systems from at least three of the four Class lE battery source divisions in the event of a loss of all offset power and a worst case single failure. Extending the surveillance interval for these Surveillances is acceptable for the following reasons: f;; design, in conjunctions with Technical Specification requirements which limit the extent and durations of inoperable DC sources, provides substantial redundancy in DC sources; battery parameters such as individual cell Coat voltage (ICV) (which verines battery charger OPERABILITY),

electrolyte level, and specine gravity are monitored during the operating cycle to verify battery OPERABILITY and will provide prompt identification of any substantial battery degradation or failure; batteries are not typically discharged except for the performance of the operating cycle test demonstrations of OPERABILITY, so there is minimal risk related degradation; battery attributes subject to degradation due to aging such as terminal corrosion and cell deterioration are monitored during the operating cycle. Therefore, any substantial degradation of the subject components will be evident prior to the scheduled perfonnance of these tests. Based on the above discussion, the impact, if any, from the surveillance test frequency increase on system availability will be minimal.

A review of the surveillance test history for each of these Surveillance Requirements was performed to validate the above conclusion. This historical review of the surveillance test history demon;trates that there are no failures that would invalidate the conclusion that the impact of this change, if any, on system availability is minimal.

L.3 Current Technical Specification 4.8.2.3.2.c.2 requires the cell to-cell and terminal connections to be " clean, tight." He confirmation that the connection is " tight" is typically performed by application of a torque which results in unnecessary stress being applied to the bolted connection. If the connection satisfies the resistance requirements ofITS SR 3.8.4.5, CALVERT CLIFFS - UNITS 1 & 2 3.8.44 Revision 3

1)lSCUSSION OF CHANGES SECTION 3.N.4 o I)C SOURCES o OPERATING it can be assumed to be sufficiently " tight." As a result, it is not necessary to verify the connections are " tight " ne " clean" requirement in CTS 4.8.2.3.2.c.2 is deleted since it is redundant to the " remove visible corrosion" requirement in ITS 3.8.4.4. In addition, the requirement to verify that connections are " clean and tight" is only applicable to nickel cadmium batteries. The Cahert Cliffs DC electrical source batteries are lead calcium batteries.

L.4 Current Technical Specification 4.8.2.3.2.d.1 and 4.8.2.3.2.d.2 require at the completion of the battery service test that the battery will be charged to at least 95% capacity in s 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

These requirements validate the design of the battery chargers. Failure of the test does not necessarily result in an inoperable battery charger. This test was originally performed to i

validate the design. Once validated it is not necessary to re validate the design. In addition.

l the battery is inoperable at the completion of the service test; thus, to restore it to l

OPERABLE status, the battery must be recharged. If during recharging, the charger does l

not function as required, evaluations would be performed to ensure continued OPERABILITY of the charger, if the results of these evaluations can not confirm the continued OPERABILITY of the charger, then the applicable ACTIONS ofITS 3.8.4 would l

be taken. Therefore, the subject requirements are not necessary to be in the Technical

)

Specifications to ensure the batteries or chargers are maintained OPERABLE and are to be removed from the Technical Specifications.

L.5 Current Tecimical Specification 4.8.2.3.2.d.2 requires emergency loads of the design duty f

cycle for the battery to be documented and updated in the Updated Final Safety Analysis l

Report (UFSAR) Chapter 8, and updated in accordance with 10 CFR 50.71(c). These details of the location of the documentation and updating of the emergency loads of the battery design duty cycle do not necessarily relate to battery OPERABILITY. He requiremenis for maintaining and updating of these emergency loads in the UFSAR are adequately addressed by the requirements of 10 CFR 50.59,10 CFR 50.71(e), and 10 CFR Part 50, Appendix 13, Section 111 (Design Control). Compliance with the requirements of 10 CFR Part 50 and 10 CFR Part 50, Appendix B, is required by the Calvert Cliffs Unit I and Unit 2 Operating Licenses. In addition, the requirement to verify battery capacity is adequate to supply and maintain in OPERABLE status the required emergency loads of the design duty cycle when

. subjected to a battery service test is still maintained in ITS SR 3.8.4.7. Therefore, these explicit requirements are not required to be in Technical Specifications to ensure that documentation of the emergency loads of the battery design duty are maintained and updated.

CALVERT CLIFFS - UNITS 1 & 2 3.8.4-5 Revision 3 n

Specification 3.8.5 Unit 1 i

i t

i 1

i i

i:

fe'iNrdiew 1 t. $

S a

A.\\

3,T (T83D ELECTRICAL POWER SYSTEMS

~5.7. 5 h 6 Win POWM DI}JAl1UJJON.SY@

c h-d.,(.g L f k _I % @

.i ta, eWM..

D. C. E( Go-" e sm r w m oi - Shutdown s u w.

orama 4 s.g.,+

4

)

h e, v et,.4.ie.(

.b'. 4 +.+

/.d

t>..d:wk t.,1bs. *.kVer.a 5.w Mn rew e.l te. S t to, LIMITING CONDITION FOR OPERATION 4

1 4~fdI?h 6 sd snimum J, d.Tollowing PC. electrietl equipmenkehd burs 3)

L(o 3,9,5

. ham...

..a e

mm.

s.. n..

.. n.. <-

125 vott D.C. busses. an P Q.g..t;..y* to,,0ym l

(2 E 5. volt ttery ba one of wWh may be thefeserve%

~ LA 'I

/Batte nd one clated chyger per bank perpplying tjp above

.C. busse 3,d g k*..D% 'I

APPLICABillTY: MODES 5 and fr AC"10N: With less thartthLabove _ comp 1_ement of _D.C. equipment and busses

'g OFAcm,y p.g vg,g q f,4 OPLRABLE: F G t'Imediatelf suspend all operations involving CORE /.s[R '10NS.

h(,,.4 W

ypositive reactivity chances movement of/Irraatatea Tuel. ana (niordfnentAf hpafy 1 pads overArraAfated/uel)anIlythe minipm

/\\D'3 g'

g 4' i

s

/*

equy5. ang equipn, ant andcrrase) arefrestoredEo OPERAF.Kf A. 't. '5 au ta

(

A@ [1 mediately initiate corrective actions to restore the minimum D.C. equipment and busses to OPERABLE status, and L w.tAda

- A,1,L4

% s All containment penetrations rovioing airca auc = irum sn co ainment mosphere to e outside atmos.ere shall either osed b isolation va

e. blind flan. or manual Ive, or gL. '

e capab of being clo d by an OPERAB automatic rge valv.

A minirr of one door n each airlock all be cle' d and th equip nt door shal be closed and d in place y a mini mo

_four ol ty.

e.b.Al)

L. I d A

(

I

$URVEILLANCE REQUIREMENT 5 5"D'g['**"'ry,,, gi,'

F4.8.2.4.1 The above required 125. volt DEbusses snati ue cetennine OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

' tan.i N..

6-i n.4 6.

- Sg 3,g,g g -

.CA The above required 125. volt battery banks and chaNers shall be emons_trated OPERABLE per Surveillance Requirement 4.8.2.3.P..-

r,Ii,,44,1Q,J,.,j(p L.4 f ;

Ett u OA nTO.J

% 1.,,,4

_ %. M. 9.4, ( 5 a. s.t q,.:,

.. / r.e. t e, q, c, a1 af a ve p o

CALVERT CLIFFS - UNIT 1 3/4 8 17 Amendment No. 194 S h*'

1

(

l Specification 3.8.5 Unit 2 0

4

m. _

Sp AC;. 4% M.5

?,3 QhEB) ELECTRICAL POWER SYSTEMS L 65 QM2)

(liRMTE POWfR DISMIBLRTON SYWEM

'((.(

bc. el.c8 vied 3=',us w crueu 4 Sq.e

-. a 6.it D.C.

o - Shutdown w u.14cs p..,.la u h.-

)

%.6) n 9..f u it.io, N

__ ~

LIH* TING CONDITION FOR OPERATION I

j f

/.8~2NAs a minJmom, the IWliowing uA. eielitrJeal equipment and bu%f g.g 3,gg lshalMe entrairfd and OPERBLJr--

--\\ 34'jQ$ %M. Q

/s. A,i;m sa cw

(-

125-volt D.C. busses, an]

/

125-volt bettery banks, one of which may be the Reser 2

Battery, and one associated charger per bank supplying t above D.C. busses. j APPL!CABILITY: MODES 5 and 6e "

I AQJJM: With less.than the ahava_cmplement of_ D.C. equipment and busses OPERABLE:

"QLC A[isoas pe : Legefis n +. ppt;Luip (f)[p! mediate 1[ suspend all operations involving CORE ALTERATION M

~

Aks,Q _

p.

ositive reactivity changes, movement of e ractatea fuel ana ua t

d na

netr irradh ted fue h 6 ne Tmum)

A3 dipvement ofAaev'uipfntnt anWtehre rhtored i 4gg eq PERA j AQ' ggd

- A.*L dI) mediately initiate corrective actions to restore the minimum L sd _

D.C. equipment and busses to OPERABLE status, and 4.L A2A (All ontairmen penetratio providing d rect access f om the T c tainment mosphere to he outside a osphere shal valve,or) be either osed by isolation y ve, blind f nge, or manu be capabi of being c1 ed by an OP BLE automati purge valv.

L3 A minimu of one door in each airl k shall be el ed and th t door shal be closed an held in plac byaminimmof)

( equipn.olts.;

four CL,l) b mm,...e.. w j

SURVEILLANCE REQUIREMENTS

- N"-"'~

g4 1 2.4.1 The above required 125-volt D.C. busses sha'il be detennined h%4;*

,$',[ 3,,go, OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability t

w.

f.7"TED The above required 125-volt battery banks and chargers shall be -

f e

equireent 4.8.2.3 t -- -

(d g g*g g Tdemonstrated OPME per_ Surveil u

no ro d.J W as-p<r4 4.. n )

i L'H 2\\

QtiG+n u r.G -0 s e.s a.s.s-q, s-J yM s.t 4 e.f 2 s.H Performance of ASTION a.

1 not pre udecomple)ionofacytstol

[a

/

j e_sfablish a s3ff conserv ve posit s

CALVERT CLIFFS - UNIT 2 3/4 8 17 Amendment No. 171 h

41

DISCUSSION OF CHANGES SECTION 3.83 - DC SOURCES - SilUTDOWN ADMINISTRATIVE CllANGES A.1 The proposed change will reformat, renumber, and reword the existing Technical Specifications, with no change of intent, to be con istent with NUREG 1432. As a result, the Technical Specifications should be more easily readable and, therefore, understandable by plant operators, as well as other users.

During the Calvert Cliffs ITS development, certain wording preferences or conventions were adopted which resulted in no technical changes to the Technical Specifications. Additional information may also have been added to more fully describe each LCO a id to be consistent with NUREG 1432. Ilowever, the additional information does not change the intent of the CTS. The reformatting, renumbering, and rewording process involves no technical changes to existing Specifications.

A.2 Current Technical Specification 3.8.2.4 applies to the DC busses and the 125 Volt battery l

bank and charger, Improved Technical Specification 3.8.5 will only apply to the DC Sources I

(125 Volt batteries and chargers). The CTS requirements for the 125 Volt busses will be addressed in ITS 3.8.10.

This change divides the TS into two separate Technical Specifications. This change is administrative since no technical changes were made. This change is consistent with NUREG 1432.

A.3 Current Technical Specification 3.8.2.4 Action a. requires the Actions taken (suspension of Core Alterations, positise reactivity changes, and movement of irradiated fuel) to remain in affect until the minimum required DC equipment is restored to Operable status, improved l

Technical Specification 3.8.5 will not contain this requirement.

improved Technical l

Specification LCO 3.0.2 requires the LCO to be entered and the Required Actions and f

Conditions to be satisfied until the LCO is met or no longer applicable. Therefore, stating I

this in the Actions is not required. The deletion of a requiremerit in the Technical Specifications that exists elsewh re in the Technical Specifications constitutes an administrative change. This change is consistent with NUREG-1432.

A.4 The Applicability of CTS 3.8.2.4 does not include movement of irradiated fuel assemblies, since no CTS requires components powered from the DC Sources to be OPERABLE during this condition. However, the ITS requires the Control Room Emergency Ventilation System (CREVS) and the Control Room Emergency Temperature System (CRETS) to be OPERABLE during this condition (ITS 3.7.8 and ITS 3.7.9, respectively). Since LC Sources are a support system to the CREVS and CRETS, this Applicability has been added to ITS 3.8.5 to support the ITS 3.7.8 and ITS 3.7.9 requirements. The more restrictive Discusrion of Changes describing the addition of the Applicability to the CREVS and CRETS are provided in Discussion of Changes to ITS 3.7.8 and ITS 3.7.9. Therefore, the addition of this new Applicability to CTS 3.8.2.4 is administrative.

TECIINICAL CIIANGES - MORE RESTRICTIVE M.1 The ACTIONS for ITS 3.8.5 (CTS 3.8.2.4 ACTION a and b) are modified by a Note stating that LCO 3.0.3 is not applicable. This clarification is necessary because defaulting to LCO 3.0.3 (during irradiated fuel movement in MODE 1, 2, 3, or 4) would require the reactor to be shutdown but would not require suspension of activities to minimize the probability of occurrence of postulated events when required DC source channels are CALVERT CLIFFS bNITS 1 & 2 3.8.5-1 Revision 3

DISCUSSION OF CilANGES SECTION 3;8.5 - DC SOURCES - SilUTDOWN inoperable. Therefore, not allowing ITS 3.8.5 ACTIONS to be bypassed by entering ITS LCO 3.0.3 requires the plant to be placed in a condition of minimum risk by ensuring suspension of CORE ALTERATIONS, suspension of movement of irradiated fuel, suspension of positive reactivity changes and initiation of actions to restore the required DC source channels. Since the change does not allow defaulting to ITS 3.0.3, but rather, requires action to suspend CORE ALTERATIONS, suspend movement of irradiated fuel, suspend positive reactivity changes and initiate restoration of the required DC source channels, this change represents an additional restriction on plant operation.

TECEINICAL CIIANGES - REI OCATIONS None TECIINICAL CIIANGES - MOVEMENT OF INFORMATION TO LICENSEE-CONTROLLED DOCUMENTS LA.1 Current Technical Specincation 3.8.2.4 LCO lists the components which comprise an Operable DC source. The components listed in the LCO are two 125 Volt battery banks, one of which may be the Reserve Battery, and one associated charger per battery bank supplying its associated DC bus. The specinc systems which are required to make the DC Sources -

Shutdown Operable are being moved to the Bases as part of the conversion to NUREG-1432.

The ITS LCO which requires the number of DC sources needed to support the DC electrical power subsystems, and the list of specific components in the Bases, are adequate to ensure the appropriate DC sources remain Operable to perform their intended function. Any changes to this description in the Bases will be in accordance with the Bases Control Program in Section 5.0 of the ITS. This will ensure that any changes to this description will be appropriately reviewed. This change is consistent with NUREG-1432.

LA.2 Current Technical Specification 3.8.2.4 Action a. footnote (*) requires that the performance of Action a, not preclude completion of actions to establish a safe, conservative position.

This requirement is being moved to the ITS Bases. The ITS Bases states that suspension of these activities does not preclude completion of Actions to establish a safe, conservative Condition. The movement of this requirement to the Bases will still ensure that the Actions taken will establish a safe, conservative position. Specine information, such as listed above, is being moved to the Bases as part of the conversion to NUREG-1432. Any changes to these requirements will be in accordance with the Bases Control Program in Section 5.0 of the ITS. This will ensure that any changes to these requirements will be appropriately reviewed. This change is consistent with NUREG-1432.

LA.3 Current Technical SpeciGcation 3.8.2.4 Action a. requires suspension of movement of heavy loads over irradiated fuel when one or more required DC Sources are inoperable. Gince crane operation is not directly affected by the loss of safety related power sources, the requirements associated with the suspension of heavy load movement over irradiated fuel assemblies are to be relocated to the UFSAR. The bounding design basis fuel handling accident assumes an irradiated fuel assembly is dropped and damaged. The movement of heavy loads (loads other than fuel assemblies) is administratively controlled based on heavy loads analyses. The heavy loads analysis methodology and crane operation which dictate the controls are described in the UFSAR. Therefore, the Actions associated with crane operations involving heavy loads aro not required to be in the ITS to ensure adequate control CALVERT CLIFFS - UNITS I & 2 3.8.5-2 Revision 3

DISCUSSION OF CHANGES SECTION 3.8.5 - DC SOURCES o SHUTDOWN of heavy loads and are to be relocated to the UFSAR. Changes to the UFSAR will be l

controlled by the provisions of 10 CFR 50.59.

TECHNICAL CHANGES - LESS RESTRICTIVE L1 Current Technical Specification 3.8.2.4 (DC Sources - Shutdown) Action c (one DC Source inoperable) requires the immediate suspension of Core Alterations, positive reactivity changes, movement ofirradiated fuel, and movement of heavy loads over irradiated fuel; the immediate initiation of corrective actions to restore one offsite circuit to Operable status; and all containment penetrations providing direct access from containment atmosphere to tha outside atmosphere to be closed or capable of being closed, a minimum of one door in each air lock closed, and a minimum of four bolts holding the equipment door closed. The requirement to suspend movement of heavy loads, and the requirement that penetrations with direct' access to the outside atmosphere be closed or capable of being closed, and to close the equipment door and one containment air lock door will be discussed in another discussion of change. Improved Technical Specifications require that the affected required feature (s) be declared inoperable, or that Core Alterations, movement of irradiated fuel assemblies, and operations involving positive reactivity additions be suspended, and the initiation of action to restore the required offsite power circuit to Operable status. This change essentially adds an allowance to declare the affected features inoperable instead of suspending Core Alterations, positive reactivity additions, and mcvement of irradiated fuel assemblies. The addition of this action permits the determination to be made whether another train of DC Sources is capable of supporting sufficient required features to continue Core Alterations and fuel movement by allowing the Actions for required feature (s) declared inoperable to be entered.

This Action is sufficient because the appropriate restrictions will be implemented in accordance with the affected required feature (s) LCO Actions. The addition of an Action which may allow continued Core Alterations or irradiated fuel assembly movement constitutes a less restrictive change. This change is consistent with NUREG-1432.

L.2 Current Technical Specification SR 4.8.2.4.2 states that the SRs of 4.8.2,3.2 are applicable.

Improved Technical Specification SR 3.8.5.1 requires the verification that battery termmal voltage is 2125 Volt on float charge. This change exempts some SRs from being performed, and precludes SRs on the battery or the charger which could render them inoperable during performance of SRs, and to preclude de-energizing a required AC vital bus during performance of SRs. With limited DC sources available, a single event could compromise the DC Sources, it is the intent that all the 3.8.4 SRs must still be capable of being met, but actual performance is not required during periods when the DC Sources are required to be Operable to support equipment required to support Core Alterations and movement of irradiated fuel assemblies. The change which exempts SRs from being performed when the plant can be placed in jeopardy by the performance of these SRs constitutes a less restrictive change. This change is consistent with NUREG-1432.

L.3 Current Technical Specification 3.8.2.4 Action c contains the requirements when one required DC source is inoperable in Modes 5 and 6. The Actions require all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind fiange, or manual valve, or be capable of being closed by an Operable automatic purge valve. The Actions also require a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. Improved Technical Specification 3.8.5 will not CALVERT CLIFFS - UNITS J & 2 3.8.5-3 Revision 3

~. _

DISCUSSION OF CilANGES SECTION 3.8.5 - DC SOURCES - SilUTDOWN include this requirement. The concerns in Modes 5 and 6 are having the appropriate equipment availab'e to mitigate accidents described in the accident analyses, and to cool the core. The Required Actions to suspend Core Alterations, movement of irradiated fuel, and positive reactivity additions mitigate the concerns of the potential accidents described in the accident analyses (fuel handling accident and boron dilution event). Other Technical Specifications exist (RCS Loops in Mode 5 and Shutdown Cooling requirements in Mode 6) that require the appropriate actions if core cooling is lost. Therefore, by following the Actions contained within the DC Sources - Shutdown Technical Specification, and other Technical Specifications that exist to ensure adequate core cooling, CTS 3.8.2.4 Action c can be deleted. The climination of a Required Action constitutes a less restrictive change. This change is consistent with NUREG 1432.

L,4 Current Technical Specification 4.8.2,4.2 requires the performance of the Surveillances in CTS 4.8.2.3.2 in order to demonstrate the OPERABILITY of the required battery (s) and chargers (s). Many of these CTS Surveillances involve tests that could cause the required OPERABLE battery (s) to be rendered inonerable. This condition presents a significant risk if an event were to occur during the test. The NRC has previously provided surveillance exceptions in the Calvert Cliffs CTS to avoid a similar condition for the AC sources, but the exceptions have not been applied to DC sources. In an effort to consistently address this concern, ITS SR 3.8.5.1 is modified by a Note that provides the allowance to not perform Surveillances which would require the required OPERABLE battery (s) to be rendered inoperable. This allowance does not take exception to the requirement for the battery to be capable of performing the particular function - just to the requirement to demonstrate that capability while that source of power is being relied on to support meeting the LCO.

CALVERT CLIFFS - UNITS-1 & 2 3.8.54 Revision 3

4 Specification 3.8.6 Unit 1 L

I 9 i

i

+

i f

Jg

'2'

~~

~

33

@ ELECTRICAL POWER SYSTEMS 3 ?. (,

di'/IE90WERDP5TRIBUTJDNSYSTERJ

{

4u

.(,, 4 O.E DKtributiorv? OperAih 1

cell m

tY-L.'

=

LIMITING CONDITION FOR OPERATION e

Gl.2d The,f6110wi,p(D.C. tus traiW shall M enedizedMd OPERABL)

L co *.t. t.

(a. 125-voit u.c. ous No.11, the associated 125-volt D.C. batt f.. %+

bank or as necessary the Reserve Battery, and one associated ful fa. p d,'."'

.t capacity charger.

\\or%

b.

125-volt D.C. bus No.12, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger.

L-e

/'.T cs.%

<r

( W@'r'A.

c.

125-volt D.C. bus No. 21, the associated 125-volt D.C. battery N9 bank or as' necessary the Reserve Battery, and one associated full

\\

'"T'%

capacity charger.

d.

125-volt D.C. bus No. 22, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full

.g t

capacity charger #

APPLICABILITY: MQhg, #and,A)

' ['Q (f[,*,','

T,.

D e

<k ACTION:

s

~~ ith one 125-volt bus -inoperable, restore the inoperable bus to W

(a OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or,be in at least HOT STANDBY l

within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following

( 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

With one in-voit U.C.. baiicy invycrobie and the associate

..125-volt D.C. bus not being supplied by the Reserve Battery except during surveillance testing per Specification 4.8.2.3.2.d.1:

1. - Restore the inoperable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or replace the inoperable battery with the OPERABLE Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or 2.

Be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in l

COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

D,

% bisc->sw / ch ps ws%% 4 L N..:ce. 4.1e.t e

C%.., C. p.:4.4,

" % S=. s. Cg.,.k-)

~3.t.3 " m u. %

15

CY"*N*[

IOs ERT~

g T

> 3.r. 6 Acriou5 A<.A6 CALVERT CLIFFS - UNIT 1 3/4 8-13 Amendment No. 183 l

py 14 ll

-v*

~~e..

hc4c.Ji.,.S.9.b INSERT 3.8.6 ACTIONS A and'B ACTIONS-

NOTE------------------------------

Separate Condition entry is allowed for each battery.

~

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more A.1 Verify pilot I hour batteries with cell (s) one or more electrolyte level battery cell and. float _ voltage i

parameters not meet Table 3.8.6-

~

within Category A 1 Category C or B limits.-

limits.

AND A.2 Verify battery.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months cell parameters

[h meet Table 3.8.6-AND 1 Category C limits.

Once per 7 days thereafter AND A.3 Restore battery 31 days cell parameters to Category A and B limits of Table 3.8.6-1.

l

]>go 1.f 1(

U

.____._____._-.____.y.._....._.

4Me,5.

T.E. b l

INSERT 3.8;6 ACTIONS A.and B (continued)

~

4 ACTIONS (continued)-

4 CONDITION REQUIRED ACTION COMPLETION-

-TIME B.

Required Action B.1 Declare Immediately and associated associated Completion-Time battery of Condition A inoperable.

not met.

One or more batteries with-average j\\

electrolyte O.3 temperature of the representative cells < 69*F.

One or more batteries with one,or more l

battery cell parameters not within Category C-limits.

W J

i

. S acA 4c. b. ~5.B,ip p

A. \\

/.h S fb-ELECTRICAL POWER' SYSTEMS

'[,(

"' ' # "Y f

LIMITING CONDITION FOR OPERATION (Continued) k (c$ With both 125-volt battery chargers from the same D.C. bus inoperable:

1.

Except when necessary during surveillance testing per Specification 4.L.2.3.2.d.1, restore at least one 125-volt 0.C. battery charger to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

2.

During surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following

/~.

30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .f--

(f.;Tghs,,,c,)

l

'd. ~With single cells aving a voltage dect

'e of more than l

0.1 volts <from e previous pe e disc drge test

.8.2.3.2.f alue, but sti a

volt er Survei fince

.l Requireme 4.8.2.3.2.b.1 ither resto replace c s or A\\

replace e affected ba ery with th eserve Bat ry within /

. (31 OL 24 hou or be in HOT TANDBY wit thenextpoursand[i SHUTDOWN within th ollowing 30, ours.f 1

l SURVEILLAilCEREQUIREMENTS

/<.. twam.%

(8.2.3.1 Each D.C. bus train shall be detemined OPERABLE and energize Np6 at least once per 7 days by verifying correct breaker alignment and

Sqggsa, (ndicated power availability.

yw.s. %

c G 8 %. 7 Each 125-volt battery bank and charger and the Reserve Battery shall be demonstrated OPERABLE:

]

'T.W[1.t 4 1 40 At least once per 7 days by verifying that:

9 i

S2. ~tE(..\\

$ The electrolyte icvel of each pilot cell is between the r

minimum andanaximum 1 vel indication marks.

/ {,3 (p4{SJ e

W gieA

bm. C

[T'S})

2'l The pilot cell specific cravitdcorrected to 77'F and fulb tinctrolyte leveyts > I.tuv.,

g

.g

=

_ 3_

pJe M l'

.N

-r p W

% L. (.

CALVERT CLIFFS - UNIT 1 3/4 8-14 Amendment No. 183 l

n4eu i

m..,....

w.~

2 i

-1

t e

kec;Eubb 3.?. b e

INSERT Note (a) to Table 3.8.61 (a)

It is acceptable for electrolyte level to temporarily increase above the specified maximum during and following equalizing d

charges provided it is not overflowing.

INSERT Note (b) to Table 3.8.61 (b)

A battery charging current of 4 2 amps when on float charge is acceptabla for meeting specific gravity limits following a battery recharge, for a maximum of 7 days. When charging current is used to satisfy specific gravity requirements, specific gravity of each connected cell shall be measured prior to expiration of the 7 day allowance.

e s.c n

Qad(ic4;u 3.t b A.\\

~

h ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

SR 241 k($'[.

The pilot cell voltage is >

volts.f j

(4. The overall battery voltage is > 125 volts.

Qi,7,'l, l2i,,

~

Gf At least once per 92 days by verifying thay q

gg 3,g,t

~

([.. b.u l k The voltage of each connected cell is >rethan[u1 L5 jvoltsunder e

t.

wt float char gJnd has not ogcreasco e

va e obse d durinythe lat perfonp ce dispfarge c,4, O,)

J t_est 4.8.2.3

.f). ;

(8 The soecific oravity,Jcorrected fo 7N and full electrolvtD

{ *q fevelbot esca connected cell is > d720tueni~h nd eo mary LnanAi.uc 1 rom Jhe va}de obser duri d M l,tg L.7 re ous teoC _ r 9

,,,M

@ The el1ctrolyte level of each connected c is b twee b d

minimum andynaximum level indication marks, j

Q.,

I L.2

{At~Teastonceper18monthsbyverifyingthat:y 1.

The cells, cell plates and battery racks show no visual l3 indication of physical damage or deterioration.

\\

The cell-to-cell and tenninal connections are clean, tight, 2.

and coated with anti-corrosion material.

l At least once per 18 months by verifyir, that the battery d.

capacity, with the charger disconpectea, is adequate to either:

1.

Supply and maintain in OPERABLE status all of the actual emergency loads for.at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months when the battery is subjected to a battery service test. At the completion of this test, surveillance 4.8.2.3.2.e shall be performed for the affected battery. The battery shall be charged to at least 95% capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , or Supply a dumy load simulating the emergency loads of the 2.

design duty cycle for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months while maintaining the battery tenninal voltage > 105 volts. At the completion of thic test, the battery shall be charged to at least 95%

capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , excluding the stabilization time.

The emergency loads of the design duty cycle shall be 1

%s,+./

ggy yp

.m..%

Q,P' p""" '

y,s g.

4

( Ta w.-i h

r

(

~ L.6 d CALVERT CLIFFS - UNIT 1 3/4 8-15 Amendment No. 183 l

b of N pay v,

f' g,4.s s.t.c

~

INSERT Note (a)- to Table 3.8.61-j i

'(a)

'It is acceptable for electrolyte level to temporarily increase A

above the spec fied maximum during and following equalizing charges providt it is not overflowing.

i INSERT Note (b)~ to Table 3.8.61-(b)

A' battery charging current-of < 2 amps when on float charge is acceptable for: meeting specific gravity limits following a battery recharge, for a maximum of 7 days. When charging current is used.-

to satisfy specific gravity requirements, specific gravity of each

. connected cell shall be measured prior to expiration of the 7-day

'I;'

allowance.

I-l 1

77 7 of it ii a

I-Sg M,aa se.6 9

h ELECTRICAL POWER SYSTEMS S.. hutm J C4-h c s a.. % s.u, 3

SURVEILLANCE REQUIREMENTS (Continued)

N p" " ' ('"3 "

/

documented and updated, as appropriate, in the system l

description contained in FSAR Chapter 8, and updated in accordance with 10 CFR 50.71(c).

e.

At least once per 18 months, the battery charger

shall be demonstrated capable of recharging the battery at a rate of 5 400 amperes while supplying no.wal D.C. loads or equivalent or greater dumy load.

. At least once per 60 months by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. This perfomance discharge test shall be perfomed subsequent to the satisfactory completion of the required h.attery service test.

t L

bI i

Tu.iu 3. t. L d**

C ha Cedeg C kb

<d 4.p *n.s.3 '

bu e

Gs J..t)h.

lek \\

c

,J

w.,

Rod v.14 p y 7,g y,

M * *'

b.

. 2o bJ.~

'Sp.m. p.,tkd oveop co..J.I c.iu se, -g

.6 ati c.n..lat 3

e Calh ! l.tTS.

e.k e ch ol h.,

y g

g Til D.6 ~

Ve,i ave <<

c.

)

->+ geshre.

fepeseds%vt-cai\\s is

? Q 'F,

g.. m

...c m, 4,

Q.. A6 T.1h t,

' bt 56.i - cy...u -

3 Not applicable to the charger associated with the Reserve Bat CALVERT CLIFFS - UNIT 1 3/4 8-16 Amendment No. 183 h ? 06ll

_- a

S d A 1.u, p

A.I

@ ELECTRICAL POWER SYSTEMS

+ --

p55xt Powtx DISTMBUTION.fdSTEhg=p Gtl Po.~

3, ?

G/RDB

.l 3,g

~

'(D.C AistrhbutioV-ShuWow3 T3.%o.g r..ti p <. d. n 4' N

6.bd sk.(t he Ak

/ twh at _ un< u.L - s.)

LIMIT 1i1G CONDITION FOR OPERATION

/

E

!La_lVbe energYed and OPERAgilowing u.t.. elecyical equipmentjnd bus 3s 8:MF a mirt1 mum, Ine f L eo 3.8.t.

Lig-gg,g ML Qgqd;( j!"

125-volt D.C. busses, and

[2 125-volt battery banks, one of which may be the Reserve "M.

2 Battery, and one associated charcer ner bank supolying t above D.c buttac I APPL 1CABILITY: 12I!1ES@ 4, m., f n,,i,4, y x et,a,;.(.... J,..q Q A. '$

.s.

+.

w mueu j

ACTION: Jith less than the above complement of D.C. equipment and busses (Ort.xAsu:

Immediatel/ suspend all operatirns involving CORE ALTERATIONS, f

a.

positive reactivity changes, movement of irradiated fuel, and movement of heavy loads over irradiated fuel until the mialmum required D.C. equipment and busses are restored to OPERABLf",

i status, and

(

b.

Immediately initiate corrective actions to restore the minimum D.C. equipment and busses to OPERABLE status, and c.[Allcontainmentpenetrationsprovidingdirectaccessfromthe containment atmosphere to the outside atmosphere shall be either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an OPERABLE automatic purge valve.

A minimum of one door in each airlock shall be closed and the equipment dcor shall be. closed and held in place by a minimum of our bolts.

.Casber ph 3 2.L. Acnous A s.cfB L.)

W*

SURVEILLANCE REQUIREMENTS

%2.4.1 The above required 125-volt D.C. busses shall be determine OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.4.2 The above required 125-volt battery banks and chargers'shall be demonstrated OPERABLE per Surveillance Requirement 4.8.2.3.2.

Perfonnance of ACTION a. shall not preclude completion of actions to) i*

establish a safe conservative position, j

. CALVERT CLIFFS - UNIT 1 3/4 8-17 S

Amendment No. 194

\\,

s.

w c%,

& % ifiGM,,M E;

9 # y*

"tx s... SW,

~$.t.)o,* h lwJ w hi.4-S u b k

.o.

s..

7 w.-

hecNed'.m 3.I. 4 INSERT 3.8.6 ACTIONS A and B ACTIONS

NOTE------------------------------

Separate Condition entry is allowed for each battery.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ ~ - - - - - - - - - -

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more A.1 Verify pilot 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months batteries with cell (s) one or more electrolyte level battery cell and float voltage parameters not meet Table 3.8.6-within Category A 1 Category C or B limits.

limits.

AND A.2 Verify battery 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months cell parameters meet Table 3.8.6-AND 3

1 Category C limits.

Once per 7 days thereafter AND A.3 Restore battery 31 days cell parameters to Category A and B limits of Table 3.8.6-1.

e p., io of 11 L

S c.dedm 1 i. b p

- INSERT.3.8.6 ACTIONS A and B (continued):

ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME' B.-

Required Action B.1 Declare Immediately and associated associated-Completion Time battery of Condition A inoperable.

i not met.

M One or more

' batteries with average electrolyte temperature of r

i the representative cells < 69*F.

One or more batteries with one or more battery cell parameters not within Category C limits.-

j p.7 lt # 11 1

Specification 3,8.6 Unit 2 l

1' l

f l

i i

4

)

a

Jpa c.Me 4 32. (p A.i g

3.7

@ H [GTRICAL POWER SYSTEMS

= - - -

L ii,,

r,1l lb~ ko 4/ @

DN5pr POWr#DISTRfh0 TION 4fSTER) 3,g., 9

b5 A

(ifee ~3Fi trijntfion < 00eratTnih M'

Lil<,.,,f*"A ll 4<

r t,

4D s

4%

3 b 1 *-'is h +: w

' "* U I~ '

LIMITING CONDITION FOR OPERATION s

4.co Sf.b (J.8.J43 The jailowinaAr.C. bus tefins sham be eneffized and QPERABl.TJ IZFyolt D.C. bus No.11. the associatea m-yoii. D.C. batt bank or as necessary the Reserve Battery, and one associated full b,. h -

capacity charger, f '{

g'{

b.

125-volt 0.C. bus No.12. the associated 125-volt D.C. battery 15'%

bank or as necessary the Reserve Batter /. and one associated full kS**" D capacity charger.

c.

125-volt D.C. bus No. 21, the asscciated 125-volt D.C. battery h 2'T bank or as 'necessary the Reserve Battery, and one associated full capacity charger.

4 4,. 9 1.4 uA/huL bank or as necessary the Reserve Batterv. and one associated full) 4..y.. y 125-voit D.C. bus No. 22. the associated 125-volt 0.C. battery r

d.

~

capacity charger.f-

- j'Dd'"(* [ P.) }l APPLICABillTY: dibetS 3(2.4 a#J].

, g <+ e,'j

.6b A.-

u.a.i.4 w,i.u.

'"'3 r,++';,cd-l' g *r -

-_ k -

j ACTIONr C~ lith one 125-volt bus inoperable, restore the inoperable bus to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD > SHUTDOWN within the.followi_n 30 hour3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months sf

Nh one 125-volt D.C. battery inoperable and the associate i

125-volt D.C. bus not being supplied by the Reserve Battery except during surveillance testing per Specification 4.8.2.3.2.d.1:

1.

Restore the ino erable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or rep ace the inoperable battery with the OPERABL Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or 2.

Be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the followina 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

%%wJ c9s 5.c h% of C4 3'

s A,

<9. w w

,3,d,4.

tpt, p.:4..u- ( p A g *, Di M 6 -

'b r.9 g

g,,,,,,,

WSMT~

9Sc.6 AcTMS A L'i CALVERT CLIFFS - UNIT 2 3/4 8-13 Amendment No. 160 l

Iobll pp

S( af < din %?4 INSERT 3.8.6 ACTIONS'A'and B ACTIONS'

~

g

*---------------NOTE---------------------------->-

Separate-Condition entry is allowed for each battery.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One-or more A.1 Verify pilot 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

1 batteries with cell (s) one or more electrolyte level l

battery cell and float voltage l

parameters not r St Table 3.8.6-l within Category-A i Category C l

or B limits.

limits.

l l

AND A.2 Verify battery 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months cell parameters meet Table 3.8.6-AND 1 Category C limits.

Once per 7 days thereafter AND A.3 Restore battery 31 days cell parameters i

)

to Category A and B limits of Table 3.8.6-1.

i 2 J ()

77

S ae;4edi m I. b p

i INSERT 3.8.6 ACTIONS A and B (continued)

ACTIONSIcontinued)

CONDITION 5EQUIRED-ACTION COMPLETION TIME B.

Required-Action B.1 Declare Immediately and associated associated Completion Time battery of Condition A inoperable, not met.

One or more batteries with average-A.

electrolyte temperature of the representative cells <- 69'F.

One or more batteries with one or more battery cell parameters not within Category C limits.

t '

..__m m.

+.

c'S e ~{w b

d h h w:

4 CLp

@ ELECTRICAL POWER SYSTEMS

& $ 4R.4,. 1,t9,*bt LIMITING CONDITION FOR OPERATION (Continued) %, g. cir,A "

j-

_ With both.125-volt battery chargers from the same D.C. bus inoperable 1.

Except when necessary during surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SMUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

During surveillance testing per Specification 4.8.2.3.2.d.1, 2.

restore at least one 125-volt 0.C. battery charger to -

OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following.

_ _ 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

f. T h singlp cells h ing a volta de. 6 Tie of more than O.

volts frca previous p o

nee dischar e test

.8.2.3.2.f) ue, but sti 1

volts Surveillance Requiremen

.8.2.3.2.b.1 ither restore / place cells or

_ t' replace e affected b sery with the R rye B'attery wi ny/

4d in COLD 24 ho s or be in HO" TANDBY within e next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months SH OWN within thy"ollowing 30 hows.

a i

4

\\

. SURVEILLANCE REQUIREMENTS

~ '

t O.2.3.1 Each D.C. bus train shall be determined OPERABLE and energized c d.y itt,

. at least once per 7 days by verifying correct breaker aligntent.and g

i aw.e A s

i Qndicated power availability.

sp., -cy.,3 Each 125-volt battery bank and charger and the Reserve Battery 4.8.2.3.2 shall be demonstrated CPERABLE:

5 % r' '

L. ~2-C16.l

^ (M At least once per 7 days by verifying that:

Q)d,,,

the

@ The electrolyte level of each pilot cell is

[h,.p.D

"'"'*"" '"d f**'*"* 'Flc ? fL Tih- "77"F and ful) i di

@ The pilot cell specific cravity./correcreo tT Ny) A Qectroiyte leveyis 3,1.200 -

mv(b

_ A 't S.6 t

=

dsaf A a

. q+A u.q u

CALVERT CLIFFS. UNIT 2 3/4 8-14 Amendment No. 160 f

7.,yao a

k

$p chb D1 b -

INSERT Note (a) to Table 3.8.61-

-(a)

-Itl-.is-acceptable for electrolyte level to temporarily increase A

above the specified maximum during and following equalizing g

charges provided it is rot overflowing.:

r

-INSERT Note (b) to Table 3.8.61 (b)

- A battery charging current of < 2 amps when on float charge is acceptable for meeting specific gravity limits-following a_ battery

-recharge, for_a maximum of 7 days. When charging current is used-to satisfy specific gravity requirements, specific gravity of each connected cell shall be measured prior to expiration of the 7 day allowance, t

L l

6ofIl go

.A...'

h c'll J.

19. (.,

i g ELECTRICAL POWER SYSTEMS

(

SURVEILLANCE REQUIREMENTS (Continued)

[

M 4 4.1 QQ(., '@ The pilot cell voltage is th volts, f

. h :..f A.

c.6.g.) A) Q. The overall battery voltage is t 125 volts g

.c 4..:t..s. u.w.

oc u.... cq 9g (jp At least once per 92 days by verifying that:

h The voltage of each connected cell is t(JJ volts under _

2.

(y. k.J floatcharge]anChasnot[creasedmdv 6 nan v.4u its T ue ob d durin he lates rfomance.

char u.t.,

4.8.2..z a-

c. u

,c.mu.o...%

@ The specific gravity 2fEirrecrea to in ana tuli c' ectrolyt)

Qteu coca connecteo cell is tg4nd-hay'd dur J

g,- I7

(

un L

ec aseo ore Injn u.up irum Upr iaTue,ebsery(

gr tous st. ;

$ The electrolyte level of each connected cell is between the L,1.

I minimum and maximum level indication marks.

vs er G east once per 18 months by verifying th

' 5# 6 '

1.

The cells, cell plates and battery racks show no visua indication of physical damage or deterioration.

I 2.

The cell-to-cell and terminal connections are clean, tight and coated with anti-corrosion material, s

't At least once per 18 months by verifying that the battery capacity, with the charger disconnected, is adequate to eitherl 1.

Supply and maintain in OPERABLE status all of the at.tual-

{

emergency loads for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months when the battery is-subjectedtoabatteryservicetest. At the completion of this test, surveillance 4.8.2.3.2.e shall be performed for the affected battery. The battery shall be charged to at l

least 95% capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , or 2.

Supply a dumy load simulating the emergency loads of the design duty cycle for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months while maintaining the battery terminal voltage 1105 volts. At the completion of this test, the battery shall be charged to at least 95%

capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , excluding the stabilization time.

The emergency loads of the design duty cycle shall 'be Cer 'bts u st -J WU 't' ]

C Q* *bc s p.d.A 4,-

f PAun 'b 3.t. [.

'GW. 3.7.c - t Yd L.b CALVERT CLIFFS - UNIT 2 3/4 8-15 Amendment No. 160 l

pp. boo m

f Smt icJim '.? h INSERT Note (a) to Table 3.8.611 (a)

It is acceptable for electrolyte level to temporarily increase above the specified maximum during and following equalizing J

charges provided it is not overflowing.

INSERT Note (b) to Table 3.8.61 (b)

A battery charging current of < 2 amps when on float charge is acceptable for meeting specific gravity limits following a battery recharge, for a maximum of 7 days. When charging current is used to satisfy specific gravity requirements, specific gravity of each connected cell shall be measured prior to expiration of the 7 day allowance.

p.y ; f 11 h

j

$4II<.Nx ' 31 b

+

f

@ ILECTRICAL POWER SYSTEMS 5'*,_ h s p g-c5

.4 an..v SURVEILLANCEREQUIREMENTS(Continued)

'bc - ***

O ** %

r

~

\\

"~~'cocumentes ind updoicd,' at appropriate, in the systi

- description contained in FSAR Chapter 8, and updated in accordancewith10CFR50.71(e).

e.

At least once per 18 months, the battery charger

shall be demonstrated capable of recharging the battery at a rate of 5 400 amperes while supplying nemal D.C. loads or equivalent or E

greatcr dunny load.

u l

f.. At least once per 60 months by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a perfomance discharge test. This performance discharge test shall be perfomed subsequent to the satisfactory completion of the required battery service test.

h

. 'Tu f. (<,.

Lfr.fo - l h

7 c43.3c ia :

gy,g g 9,3 A 6.- 41 *f 4

1 e c

.h ovu totajj y

> t.o g V,

y Fwd vot4 9

W- +w e ks s.oto lQek y.et c.weih.fedls 1041. 4

- - - w A#b il 4

h c.-.d.f An.7 (eh t I.it 5.

sit 5,t.b_

W"T C)2M*)J' s u,. or urs u~

1 esf\\s ly c.x.< c4 c y.:n..r. 2.t.s'

bc. L-.s Cpb)

Not applicable to the charger associated with the Reserve Bat CALVF.RT CLIFFS - UNIT 2 3/4 8-16 Amendment No. 160 h

7 of II

Spe44<J6 316

~

A.)

$,T df52> ELECTRICAL POWER SYSTEMS Q

k M

gyNUM PRER QMfRIBWitTN SYJr4ER)

' ( ' l --

,p, g h

h, c.tl p

,5

4. 7.

4j d,;,,, % J Q E strttutto r-Shd Q 4

M 65 d s At I;-

LIMITING CONDITION FOR OPERATION N#

L M. l IZ5-volt D.C. busses, ana -

7'bN

.I,3 skglse 125-volt battery banks, one of which may be the Reserve Battery, and one associated charger per bank supplying the A'a,"7'* p 2

l above D.C. bu g

7s A*

. 4

- n,< y wr. 9 s L. _coctsea A.3 APPLICABILITY: @&E3 54ndJ.

f th less snan tne ame magic... cat 2 D.C. udroent eni buYYYg ACTION a.

Imediately* suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel and movement of heavy loads over irradiated fuel until the minimum required D.C. equipment and busses are restored'to OPERABLE

(-

status, and l

b.

Imediately initiate corrective actions to restore the minimum D.C. equipent and busses to OPERABLE status, and

c. 'All containment penetrations providing direct access from the containment atmosphere to the outside atmosphere shall be either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an OPERABLE automatic purge valve.

A minimum of one door in each airlock shall be closed and the equipment door shal' tte closed and held in place by a minimum of four bolts.

55 Y

}

SURVEILLANCE REQUIREMENTS kNQ_ A J-[ 8j

~

l f.8.2.4.1 The above required 125-volt D.C. busses shall be determ'Tmni-

[0PERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.4.2 The above required 125-volt battery banks and chargers shall be demonstrated OPERABLE per Surveillance Requirement 4.8.2.3.2.

y Perfonnance of ACTION a. shall not preclude completion of actions to establish a safe conservative notiti e I

i CALVERT CLIFFS - UNIT 2 3/4 8-17 Amendment No. 171 l

s.

vs_:

s

(, _

M.h% 3 t. E,

%A

~

'bc. s.~m - %@y m.D 3 C lo,' % Q LIh w Q L.:.i 5 d d* A

{-

'e

d kn b.-

3.E 6 INSERT 3.9.6 ACTIONS A and B ACTIONS

NOTE------------------------------

4 Separate Condition entry is r.llowed for each battery.

. CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more A.1 Verify pilot 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months batteries with cell (s) one or more electrolyte level battery cell and float voltage parameters not meet Table 3.8.6-within Category A-1 Category C l

or B limits, limits.

L-i AND A.2 Verify battery 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months cell parameters meet Table 3.8.6-AND 1 Category C' limits.

Once per 7 days thereafter AND A.3 Restore battery 31 days cell parameters to Category A and B limits of Table 3.8.6-1.

p.

jo M 11 i

~

3

-%JQc Sw.]T 7.b m

i INSERT 3.8.6-ACTIONS A and B-(continued)

ACTIONS (continued)

CONDITION REQUIRED-ACTION COMPLETION-TIME B.

Required Actiorn B.1 Declare Immediately and associated associated-t l

Completion Time battery i

of Condition A inoperable, not met.

E One-or more l

batteries with

[-

average electrolyte temperature of l-the 3

- representative cells < 69'F.

2 One or more batteries with one or more

~ battery cell parameters not within Category C limits..

4 I

l ll. fit

1)lSCUSSION OF CilANGES SECTION 3.8.6 HATTERY CELL PARAMETERS ADUNISTRA11VE CllANGES A.I The proposed change will reformat, renumber, and reword the existing Tchnical Specifications, with no change of intent, to be consistent with NUREG 1432. As a result, the Technical Speci0 cations should be more easily readable and, therefore, understandable by plant operators, as well as other users.

During the Calvert Cliffs ITS development, cenain wording preferences or conventions were adopted which resulted in no technical changes to the Technical Speellications. Additional

h. formation may also have been added to more fully describe cach LCO and to be consistent with NUREG 1432. Ilowever, the additional information does not change the intent of the CTS. The refonnatting, renumbering, and rewording process involves no technical changes to existing Speellications.

A.2 Current Technical Specification 3.8.2.3 applies to DC Distribution during Modes I,2,3, l

and 4, and CTS 3.8.2.4 applies to DC Distribution during Modes 4 and 5. He improved Technical Specification divides CTS 3.8.2.3 into ITS 3.8.4 (DC Sources - Operating),

ITS 3.8.9 (Distribution Systems Operating), and ITS 3.8.6 (!!attery Parameters), and divides CTS 3.8.2.4 into ITS 3.8.5 (DC Sources Shutd-

), ITS 3.8.10 (Distribution Systems Shutdown) and ITS 3.8.6 (Ilattery Paramete

.hls change encompasses the division of the CTS into the new Technical Specilk.ition for battery cell parameters (ITS 3.8.6, llattery cell Parameters"). Separating out renuirements from the CTS and creating a new requirement from these requirements constitutes an administrative change.

Any technical changes made to these requirements will et discussed in other discussion of changes. This change is consistent with NUREG 1432.

A.3 Current Technical Specifications 3.8.2.3 and 3.8.' 4 Ar. Ucability is Modes I,2,3, and 4, and Modes 5 and 6, respectively. Improved Technical Specification 3.8.6 requires the battery parameters to be applicable when associated DC electrical power channels are required to be Operable. The DC electrical power channels are required to be Operable in Modes 1,2,3,4,5, and 6, and during Core Alterations and movement of inadiated fuel assemblies as required by ITS 3.8.4 and 3.8.5, The Applicability differences between CTS 3.8.2.3 and 3.8.2.4 and the ITS were dispositioned in the discussion of changes for ITS 3.8.4 and 3.8.5. Tims, the addition of the Applicability for ITS 3.8.6 is an administrative change. This change is consistent with NUREG 1432.

A.4 The battery cell parameter limits of CTS 4.8.2ft.2.a and 4.8.2.3.2.b are combined into one Table (ITS Table 3.8.61), which provides the hialts for each pilot cell (Category A) and each connected cell (Category B). Category C limits Ore also added as described in comment L.1 below. The CTS Surveillance Requirements (CTS SR 3.8.6.1 and SR 3.8.6.2) are reworded to verify the appropriate limits (Category A or II) are met. No technical changes are made, unless described in the "M" or "L" comments below.

TECIINICAL CilANGES - MORE RESTRICTIVE M1 The Calvert Cliffs CTS do not contain requirements for battery cell electrolyte temperature.

Average electrolyte temperature of the battery cells supports OPERABILITY of the DC electrical source channels since lower than normal temperatures act to inhibit or reduce l

battery capacity. Therefore, the requirement to maintain battery cell average electrolyte CALVERT CLIFFS UNITS I & 2 3.8.6 1 Revision 3

I DISCUSSION OF CilANGES SECTION 3.8.6. HATFERY CELL PARAMETERS temperature within the required limit is provided in ITS 3.8.6, and ITS SR 3.8.6.3 is added to verify the average temperature of representative cells is within required limits on a 92 day Frequency, nis change represents an additional restriction on plant operation necessary to help ensure the batteries are maintained OPERADLE.

M.2 Current Technical Specification 4.8.2.3.2.a.3 and 4.8.2.3.2.b.1 require battery cell voltage to be 2 2.10 volts. Improved Technical Specification Table 3.8.61 Category A and D limits reqaire battery cell voltage to be 2 2.13 volts. This change ensures that overall battery voltage is satisfactory and is consistent with the recommendations ofIEEE-450 which states that prolonged operation with cells < 2.13 volts can reduce the life expectancy of the cells.

%is change represents an additional restriction on plant operation necessary to help ensure battery OPERABILITY is maintained.

IECHNICAL CllANGES. RELOCATIONS None IEGINjCAL CilANGES. MOVEMENT OF INf0Rh1ATION TO LICENSEE-CONTROLill!

DOCUMENTS LA.1 Not used.

l

'IECilNICAL CIIANGES. LESS RFSTRICTIVE L.!

Current Technical Specifications 3.8.2.3 and 3.8.2.4 do not contain specine Actions wben battery cell parameters are not within limits, except for CTS 3.8.2.3 Action I, which allows 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to restore low cell voltage. Current Technical Specifications require the associated battery to be declared inoperable immediately, or a plant shutdown initiated within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , as applicable, when a battery cell parameter is not within limits, or when vcitage decreases more than 0.10 Volts from the previous performance test.

Im.oroved Technical Specifications will provide Actions which allow additional time to restore the bettery cell parameters referenced in ITS LCO 3.8.6, Action A. Specifically, ITS 3.8.6 Required Action A.1 requires the verification that pilot cell electrolyte level and float voltage meet Table 3.8.61 Category C limits within I hour,ITS Required Action A.2 requires verification that battery cell parameters meet Table 3.8.6-1 Category C limits within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months and once per 7 days thereafter, and ITS Required Action A.3 requires the battery to be restored to within Table 3.8.6-1 Category A and D limits within 31 days.

Improved Technical Specification Action B, when the Required Actions and associated Completion Times cannot be met or when there is one or more batteries with battery cell parameters not within Category C limits, requires the associated battery to be declared inoperable immediately and its associated Actions entered. The addition of Action A is acceptable because, although the battery may be degraded when required parameters are not within Category A or D limits, there is still sufficien: capacity to perform the intended function since the Category C limits are met. The category C limits are selected to provide assurance the battery is still capable of performing its intended function. The verification of pilot cell electrolyte level and ICV l within one hour provides a quick check of the status of the remainder of the battery cells.

l One hour provides the time to inspect the electrolyte level and to confinn the ICV of the l pilot cells. The verification of battery cell parameters within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and once per 7 days

.thereafler, will ensure that during the time needed to restore the battery parameters the CALVERT CLIFFS UNITS 1. & 2 3.8.6 2 Revision 3

1 DISCUSSION OF CHANGES SI'CTION 3.8.6. HA*ITERY CELL PARAMETERS battery is still capable of performing its intended function. The period of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months is allowed to complete the initial verification because measurements must be obtained for each connected cell. Taking into consideration both the time required to perform the required verification and the assurance that the battery parameters are not severely degraded, this time is considered reasonable. 'Ihe :even day intenal is repeated until the parameters are restored to within the Category A and B limits. This periodic verification is consistent with the increased potential to exceed these battery parameter limits during these conditions. The 31 days to restore the parameter is acceptable prior to declaring the battery inoperable or requiring a plant shutdown, because consideration is taken that while battery capacity is degraded, sufficient capacity exists to perform the intended function and to allow time to fully restore the battery parameters to normal limits. Action 1), which requires the associated battery to be declared inoperable, ensures that appropriate Action is taken if the Required Actions cannot be met within the Completion Time, or if some other inoperability occurs which la not consistent with the Conditions of Action A. This reflects an extreme condition may exist and the battery is appropriately declared inop:rable, rather than immediately l requiring a plant shutdown, increasing the AOT when battery parameters are not withh.

limits constitutes a less restrictive change.

In addition, a Note is added to the ACTIONS to provide more explicit instructions for the proper application of the Actions for Technical Specifications compliance, in conjunction with ITS 1.3, " Completion Times," the Note (" Separate Condition entry is allowed for each...") and the Condition of"one or more" provides direction consistent with the intent of the ITS ACTIONS.

L2 Current Technical Specification 4.8.2.3.2.a.1 and 4.8.2.3.2.b.3 require electrolyte level of each battery cell to be between the minimum and the maximum level indication marks, improved Technical Specification Table 3.8.61 Category A and B limits for battery cell electrolyte level are modified by Note (a). Note (a) states that it is acceptable for electrolyte level to temporarily increase above the specified maximum level during and following equalizing charges provided it is not overflowing. This allowance is based on the guidance provided in Appendix A of IEEE 450. The apparent electrolyte level depends on the charging rate because the gas generated during charging causes an expansion of the electrolyte. If the electrolyte is at the maximum level at float voltage, it may rise above this maximum level on equalizing charge. This condition is considered to be acceptable since it is temporary due to gas generation, would be expected to return to normal, and does not affect the battery's capability to perform its intended function.

L.3 Current Technical Specification 4.8.2.3.2.a.1 and 4.8.2.3.2.b.3 require electrolyte level of each bttety cell to be between the minimum and the maximum level indication marks, improvd Technical Specificmwn Table 3.8.61 Category A and B limits for battery cell electrMyt9 level are greater than the minimum level indication mark and s 1/4 inch above the maximuni level indicat!on mark, increasing the maximum electrolyte level from less than the maximum !cvel indication mark to s 1/4 inch above the maximum level indication mark is ennsistem whh manufa:turer's recommendation and guidance ofIEEE-450, with the extra 1/4 inch alloviam c' ave the maximum electrolyte level indication provided for operating margin to account for temperature and charging effects. This change is considered to be acceptable since it is consistent with manufacturer's recommendations and does not afTect the battery % capabllhy to perform its intended function.

CALVERT CLIFFS - UNITS 1 & 2 3.8.6-3 Revision 3

DISCUSSION OF CHANGES SECTION 3_8.6. HATTERY CELL PARAMETERS L.4 Current Technical Specifications 4.8.2.3.2.a.2 and 4.8.2.3.2.b.2 require specific gravity for each battery tell to be corrected for temperature and level.

Improved Technical Specification Table 3.8.61 Category A and 11 limits for battery cell specific gravity are modified by Note (b). Note (b) states that specific gravity is to be corrected for temperature and level, with the details of this correction (the specific temperature and level to use in the correction) included in the ITS Ilases. Including these details in the liases is considered acceptable since the requirement for correction of specific gravity readings is still rnalntained in the ITS. In addition, Note (b) states that level correction is not required when battery charging cunent is < 2 amps when on float charge. This change is considered acceptable since this condition (< 2 amps when on float charge) provides an indication of acceptable overall battery condition without the need to correct for electrolyte level and does not afTect the battery's capability to perform its intended function.

L.S Current Technical Specification 4.8.2.3.2.b.1 provides a requirement that voltage of each connected battery cell must be verlued to not have decreased by more than 0.10 volts from the value observed during the latest performance discharge test and CTS 3.8.2.3 Action d provides actions if CTS 4.8.2.3.2.b.1 is not met. These requirements are not included in the Calvert Cliffs ITS. The deletion of the CTS 3.8.2.3 Action d requirements is addressed in comment L.l. The CTS 4.8.2.3.2.b.1 requirement basically measures and trends degradation of a given cell. Degradation does not necessarily mean that the battery is inoperable. The requirement for monitoring and trending degradation of battery cells is adequately addressed by the requirements of 10 CFR $0.65 (Requirements for monitoring the effectiveness of maintenance at nuclear power plants), and the Calvert Cliffs implementation of these requirements Title 10 CFR 50.65 requires the monitoring of the perfonnance or conditions of systems, structures, or components (in this case, DC source batteries) against licensee established goals, in a manner suf0clent to provide assurance that such structures, systems, and components are capable of fulfilling their intended functions. Compliance with 10 CFR 50.65 is required by the Calvert Cliffs Unit I and Unit 2 Operating Licenses, in addition, the requirement to verify battery cell voltage is within required limits (Category C limits d relate directly to battery OPERAtllLITY) is still maintained in ITS 3.8.6 and SRs 3.8.6.1 and 3.8.6.2, Therefore, the explicit requirement associated with measuring and trending battery cell voltage degradation is to be removed from the Technical Specifications.

L.6 Current Technical Specification 4.8.2.3.2.a.2 and 4.8.2.3.2.b.2 require verification that specific gravity of each battery cell is within required limits.

improved Technical Speci0 cation Table 3.8.61 specific gravity requirements are modified by Note (c). Note (c) allows a battery charging current of < 2 amps when on float charge to satisfy the specide gravity limits following a battery recharge, for a maximum of 7 days. In addition, Note (c) requires specific gravity of each connected cell to be measured prior to expiration of the 7 day allowance when charging current is used to satisfy specific gravity requirements.

IEEE-450 discusses two methods of determining the state of charge of a lead acid battery.

The first method, which is currently required by the Calvert Cliffs Technical Specifications, is specific gravity readings. The second method, which IEEE-450 states is "a more accurate indicator of return to full charge", is a stabilized float charging current, it is more accurate in that, like cell voltage, float charging current quickly responds to the battery's state-of.

charge, Specific gravity readings inherently lag the actual state-of charge of the battery.

Stratification of electrolyte in Pb-Ca type lead acid battery cells is a commonly known and accepted phenomena. This stratification can result in false " low" readings of electrolyte specific gravity when taken in the top third of the cell compared to the actual " fully mixed" CALVERT CLIFFS - UNITS 1 & 2 3.8.6 4 Revision 3

DISCUSSION OF CilANGES SECTION 3.8.6 - HATTERY CELL PARAMETERS specific gravity of the cell. Stratified electrolyte has been shown to not affect cell performance or life over short periods of time (up to approximately 6 months). In addition, stratification effects are most severe during the recharge period following a full discharge. It is not uncommon for Pb Ca type lead acid battery cells to take 90 days and up to 180 days to reach a fully mixed (non strati 0ed) condition after such a discharge,1herefore, since float charging current provides battery state of-charge information sufficient to determine (to at least the same degree as specific gravity) battery OPERADILITY and does not affect the battery's capability to perform its intended function, the change is considered to be acceptable.

L.7 Current Technical Specifkation 4.8.2.3.2.b.2 requires the specific gravity to be verified to not have decreased more than 0.02 from the value observed during the previous test.

Improved Technical Specification Table 3.8.61 Category D limits will require the specific gravity for the average of connected battery cells to be 21.205, This change revises the acceptance criteria for the specific gravity from a decrease of 0.02 from the previous test to the average of connected battery cells being 21.205. Verifying the specific gravity for the average of connected battery cells ensures that the effect of a highly charged or a new cell does not mask overall degradation of the battery, whereas verifying that each tested cells' specific gravity has not decreased 0.02 could mask overall degradation by concentrating on individual cells. This change in method is considered overall less restrictive because the acceptance criteria is no longer related to previous test results, although this change may bc l more restrictive on an individual cell basis. This change is based on the recommendations of IEEE 450-1995.

l IEEE 450 working group recommendations to the NRC for appropriate Technical Specifications on battery electrolyte, as well as the NRC Dases in NUREG 1432, provide specific gravity Category D limits that are as follows:

1 0.020 below the manufacturer's fully charged nominal specific gravity for Category D limits on individual cells; 0.010 below the manufacturer's fully charged nominal specific gravity for Craegory D limits on the average of all connected cells.

The CTS 4.8.2.3.2.b.2 specific gravity limit for each connected cell (Category D limit) is conservative with respect to this guidance. The batteries utilized at Calvert Cliffs have a manufacturer's fully charged nominal specific gravity of 1.215, resulting in the Calvert Cliffs ITS Table 3.8.61 Category D specific gravity limit for an individual cell of 1.195. This change, it'cluding the addition of specific gravity limits on the average of all connected cells, continues to provide assurance that the battery's state of charge does not affect the battery's capability to perform its intended function.

CALVERT CLIFFS UNITS 1 & 2 3.8.6 5 Revision 3

NO SIGNIFICANT llAZARD'l CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS ADMINISTRATIVE CilANGES Hal!!more Gas and Electric Company (BGE), Calvert Cliffs Units I and 2, is converting to the improved Technical Specification (ITS) as outlined in NUREG 1432,

Standard Technical Specifications, Combustion Engineerins Plants." The proposed changes involve reformatting, renumbering, and rewording of Technical Specifications, with no change in intent, and are the incorporation of current plant practices consistent with NUREG 1432. These changes, since they do not involve technical changes to the Technical Specincations or current plant practices, are administrative. Below is the No Significant llazards Consideration for the conversion of this Section to NUREG 1432.

In accordance with the criteria set forth in 10 CFR 50.92, BGE has evaluated these proposed Technical Specification changes and determined they do not represent a significant hazards consideration. The following is provided in support of this conclusion.

l 1.

Does the change involve a significant increase In the probability or consequences of an accident previously evaluated?

The proposed changes involve reformatting, renumbering, and rewording of the existing Technical Specifications, along with the incorporation of current plant practices and other changes, as discussed above, in order to be consistent with NUREG 1432. These changes involve no technical changes to the existing Technical Specifications. Specifically, there will be no change in the requirements imposed on Calvert Cliffs due to these changes. Thus, the changes are administrative in nature and do not impact initiators of analyzed events. The proposed changes do not significantly affect initiators or mitigation of analyzed events, and therefore do not involve a significant increase in the probability or consequences of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed changes involve reformatting, renumbering and rewording of the existing Technical Specifications, along with the incorporation of current plant practices and other changes, as discussed above, in order to be consistent with NUREG 1432. The changes will not involve a significant change in design or operation of the plant. No hardware is being added to the plant as part of the propored changes. The proposed changes will not introduce any new accident initiators. Therefore, the changes do not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does this change involve a significant reduction in margin of safety?

The proposed changer involve reformatting, renumbering, and rewording of the existing Technical Specifications, along with the incorporation of current plant practices and other changes, as discussed above, in order to be consistent with NUREG 1432. The changes are administrative in nature and will not involve any technical changes. The changes will not reduce a margin of safety because it has no impact on any safety analysis assumptions. Therefore, the changes do not involve a significant reduction in a margin of safety.

CALVERT CLIFFS. UNITS 1 & 2 3.8-1 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.R - ELECTRICAL POWER SYSTEMS IECllNICAL CllANGES - MORI' RNTRICTIVE Baltimore Gas and Electric Company, Calven Cliffs Units 1 and 2, is convening to the ITS as outlined in NUREG 1432, " Standard Technical Specifications, Combustion Engineering Plants." The proposed changes involve adding more restrictive requirements to the existing Technical Specifications by either making currc s xquirem;nts more stringent or by adding new requirements which currently do not exist.

Below is the ho Significant llazards Consideration for the conversiva of this Section to NUREO 1432.

In accordance with the criteria set forth in 10 CFR 50.92, DGE has evalusted these proposed Technical Specification changes and determined they do not represent a significant hazards consideration. The following is provided in support of this conclusion.

1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

ne proposed changes provide more stringent requirements than previously existed in the Technical Specifications. Each change was evaluated and it was determined that these more stringent requirements do not result in operation that will increase the probability of initiating an j

l analy7ed event, if anything, the new requirements may decrease the probability or consequences 4

of an analyzed event by incorporating the more restrictive changes discussed above. The proposed changes do not alter assumptions relative to mitigation of an accident or transient. The l

more restrictive requirements continue to ensure process variables, structures, systems, and l

-components are maintained consistent with the safety analyses and licensing basis. The I

proposed changes do not significantly affect initiators or mitigation of analyzed events, and therefore do not involve a significant increase in the probability or consequences of an accident I

previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed changes provide more stringent requirements than previously existed in the Technical Specifications. The changes will not involve a significant change in design or operation of the plant. No hardware is being added to the plant as part of the proposed changes.

The proposed changes will not introduce any new accident initiators. The changes do impose different requirements, llowever, these changes are consistent with the assumptions in the safety analyses and licensing basis. Therefore, the changes do not create the possibility of a new or difTerent kind of accident from any accident previously evaluated.

3 Does this change involve a significant reduction in margin of safety?

The proposed changes provide more stringent requirements than previously existed in the Technical Specifications. An evaluation of these changes concluded that adding these more restrictive requirements either increases or has no impact on the margin of safety. The changes provide additional restrictions which may enhance plant safety.

The changes maintain requirements within the safety analyses and licensing basis. As such, no question of safety is involved. Therefore, the changes do not involve a significant reduction in a margin of safety.

i CALVERT CLIFFS - UNITS 1 & 2 3.8 2 Revision 3

NO SIGNIFICANT IIAZARDS CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS TECilNICAL CilANGES. MOVEMENT OF INFORMATION TO LICENSEE CONTHOLLED DOCUMENTS Baltimore Oas and Electric Company, Calvert Cliffs Units 1 and 2, is converting to the ITS as outlined in NUREG 1432, " Standard Technical Specifications, Combustion Engineering Plants." The proposed changes involve moving details (engineering, procedural, etc.) out of the Technical Specifications and into a licensee-controlled document. These changes, since details are being removed, are less restrictive.

Delow is the No Significant flazards Consideration for the conversion of this Section to NUREG 1432.

In accordanen whh the criteria set forth in 10 CFR 50.92, DGE has evaluated these proposed Technical Specification naogos and determined they do not represent a significant hazards consideration. The following is provided in support of this conclusion.

I, Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed changes move details from the Technical Specifications to a licensee-controlled document. The changes do not result in any hardware changes or changes to plant operating practices. The details being removed from the Technical Specifications are not assumed to be an initiator of any analyzed event. The licensee controlled document containing the removed Technical Specification details will be maintained using the provisions of the plant document change control process, and is subject to the change control process in the Administrative Controls section of the Technical Specifications. Since any changes to the relocated details will be evaluated per the plant document change control process, no increase (significant or insignificant)in the probability of an accident previously evaluated will be allowed. 'the details which are being moved from Technical Specifications are not assumcd to mitigate accidents or transients. Since any changes to the relocated details will be evaluated per the plant document change centrol prccess, no increase (significant or insignificant) in the consequences of an accident previously evaluated will be allowed. Therefore, there will be no significant increase in the consequences of accidents previously evaluated. Therefore, the changes do not involve a significant increase in the probability or consequences of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed changes move details from the Technical Specifications to a licensee-controlled document. The changes will not involve a significant change in design or operation of the plant.

No hardware is being added to the plant as part of the proposed changes. The proposed changes

- will not introduce any new accident initiators.

The changes will not impose difkrent requirements, and adequate control ofinformation will be maintained. The changes will not alter assumptions made in the safety analysis and licensing basis. Therefore, the changes will not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does this change involve a significant reduction in the margin of safety?

The proposed changes move details from the Technical Specifications to a licensee-controlled document. The changes do not reduce the margin of safety since they have no impact on any safety analysis-assumptions, in addition, the details to be moved from the Technical Specifications to a licensee-controlled document are the same as the existing Technical Specifications. Since any future changes to this licensee controlled document will be evaluated CALVERT CLIFFS - UNITS 1 & 2 3.83 Revision 3

NO SIGNilrlCANT HAZARDS CONSIDERATIONS SECTION 3.8 o ELECTRICAL POWER SYSTEMS per the requirements of the plant document change control process, no reduction (significant or insignincant) in a margin of safety will be allowed without prior NRC approval.

He NRC review provides a certain margin of safety, and although this rev'cw will no longer be performed prior to submittal, the NRC can audit the plant document change control process.

l

%crefore, the margin of safety lost by not requiring NRC vlor approval is not significant. Also, since the proposed changes are consistent with Combustion Engineering's Standard Technical Specifications, NUREG.1432, approved by the NRC StafT, tevising the Technical Specifications to reflect the approved level of detail reinforces the con:mico that there is no significant reduction in the margin of safety. Herefore, the changes do not involve a significant reduction in the margin of safety.

TECIINICAL CliANGES. I ESS RESTRICTIVE j

llaltimore Gas and Electric Company, Calvert Cliffs Units I and 2, is converting to the ITS as outlined in NUREG 1432, " Standard Technical Specifications, Combustion Engineering Plants." He proposed i

change involves making the CTS less restrictive, llelow are the No Significant llazards Considerations for the conversion of this Section to NUREG 1432.

In accordance with the criteria set forth in 10 CFR 50.92 DGE has evaluated these proposed Technical Specifications changes and determined they do not represent a significant hazards consideration. The following is provided in support of this conclusion.

,Ls.1 Chamec L1 1.

Does the change involve a significant increase in the probability or consequences of an accident prnlously evaluated?

The proposed change deletes the Action to test the diesel generator (DG) when one required offsite circuit is inoperable. The DGs power mitigation equipment in the event of an accident and are not an initiator of any analyzed event. The incorporation of this change does not make the DG less capable of providing power to mitigation equipment in the event of an accident. The requirement to test the DG within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (one or two required offsite circuits inoperable, respectively), when less than the required number of offsite circuits are operable, does not make the DG any more reliable than it was prior to it being tested. In addition, this requirement results in unnecessary testing of the DG, Generic Letter 93 05 and NUREG 1366 recommended the deletion of testing of the DGs when another component's train or subsystem is inoperable. These recommendations are intended to climinate unnecessary testing of DGs which can result in the degradation of the diesel engine, As the ability of the DG to perform its function is not affected, this change will not significantly affect the consequences of an sccident previously evaluated. Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change deletes the Action to test the DG when one required offsite circuit is inoperable. This change does not involve a significant change in the design or operation of the plant, No hardware is being added to the plant as part of the proposed change. The proposed CALVERT CLIFFS UNITS 1 & 2 3.8-4 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3c8 o ELECTRICAL POWER SYSTEMS change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signineant reduction in a mary!n of safety?

The proposed change deletes the Action to test the DG when one required offsite circuit is inoperable.1his change adopts recommendations in Generic Letter 93 05 and NUREG 1366, which recommend climinating Do testing when another component's train or subsystem is inoperable. This recommendation is intended to climinate unnecessary DO testing which can result in degradation of the dicsci engine. Performing DO testing when an olisite circuit is inoperable does not make the DO any more reliable than it was prior to being tested, llowever, the DO may be degraded due to this unnecessary testing, so the climination of this testing does not decrease, and may increase, the margin of safety. Therefore, the proposed change does not l

involve a signincant reduction in a margin of safety.

311_ChangtL2 1.

Does the change involve a signincent increase in the probability or consequences of an accident previously evaluated?

The proposed change increases the Completion Time (currently in LCO 3.0.5) allowed to declare required feature (s) supported by an inoperable AC source inoperable when the redundant required feature (s) are inoperable. 'the Completion Time L increased from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , and 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months whenever one offsite circuit, two offsite circuits, and one DO, respectively, are inoperable. The unavailability of redundant power sources is et an initiator to any accident.

Should all power sources be unavailable, rendering required equipment unable to perform its safety function, an immediate shutdown would still be required. The unavailability of redundant power sources is controlled by Technical Speci0 cations Required Actions, and those Actions

)

have not changed. 'Iherefore, the ability to mitigate accidents previously evaluated while in this condition has not changed. Therefore, this change does not involve a signincant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change increases the Completion Times (currently in CTS 3.0.5) allowed for declaring required feature (s) supported by the inoperable AC source inoperable when the redundant required feature (s) are inoperable from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ,12 hours, and 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months whenever one offsite circuit, two offsite circuits, and one DG, respectively, is inoperable. This change does not involve a signl0 cant change in the design or operation of the plant. No -

hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators, Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signincant reduction in a margin of safety?

The proposed change increases the Completion Time (currently in CTS 3.0.5) allowed for declaring required feature (s) supported by the inoperable AC source inoperable when the redundant required feature (s) are inoperable. The Completion Times are increased from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ,12 hours, and 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months whenever one offsite circuit, two offsite circuits, and one DO, respectively, is inoperable. The availability of redundant power supplies contributes to the CALVERT CLIFFS UNITS I & 2 3.8 5 Revision 3

NO SIGNIFICANT liAZARI)S CONSillERATIONS SECTION 3.fi. ELFCTRICAL POWER SVSTEMS margin of safety of the plant. Allowing a longer period of time, prior to declaring the suppoded required feature inoperable when the redundant power sources are inoperable, will not have a significant alTect on the margin of safety becat.se the supported required features will still have a power source, the likelihood of that power source being interrupted is small, and the longer Completion Time may allow enough time to place the redundant required feature in service in

{

order to avoid a plant shutdown. A plant shutdown is a plant transient which will eliminate the electrical power generated by the plant and will require realignment of power sources following the shutdown. Rese actions will increase the likelihood that the remaining power source may become inoperable. *lherefore, allowing this extension of the Completion Time will not result in a significant reduction in the margin of safety.

MI,LChanye L3 1

1, Does the change involve a signinennt inercase in the probability or consequences of an accident previously evaluated?

ne proposed change will require, when one DO is inoperable, that either it be verified that the l

inoperability is not due to a common cause failure, or that the Operable DO be started to verify l

its Operability. Current Technical Specifications allow only a DO start to verify Operability.

Inoperability of a DO is not an initiator of any analyzed event. As either the current teet stan or an engineering evaluation to verify that the cause of the inoperable DO does not affect the operable DO will verify that the remaining DO is Operable, the ability of the remaining DO to power the equipment necessary to mitigate an accident is unchanged.

Therefore, the I

consequences of any accidents previously evaluated are also unchanged. Therefore, the proposed change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will require, when one DG is inoperable, either verification that the inoperability is not due to a common cause failure or performance of an Operability verification on the Operable DO. Current Technical Specifications allow only a DO Operability verification.

This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or ditTerent kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change will require, when one DO is inoperable, that either it be verified that the inoperability is not due to a common cause failure, or that the Operable DO be started to verify its Operability. Current Technical Specifications allow only a DO Operability verification. Thl change incorporates the recommendations of Generic Letter 93 05 and NUREG 1366, which eliminate excessive DO testing that can degrade the diesel engine. Allowing an evaluation to verify the Operability of the remaining DO will eliminate unnecessary DG starts, and may increase the reliability of the DO As a result, the margin of safety provided by the DO is not decreased, and may be increased, Therefore, the proposed change does not involve a significant reduction in a margin of safety.

J CALVERT CLIFFS UNITS 1 & 2 3.8 6 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 328. ELECTHICAL POWER SYSTEMS 3.R.1 Chamae L(

l.

Does the change insolve a signlncant increase in the probability or consequeaves of an accident previously evaluated?

1he proposed change will delete the rtquirement to perform DO SRs on a Staggered Test liasis.

1his change will not significantly increase the probability of an accident previously evaluated.

The Dos power mitigation equipment in the event of an accident and are not an initiator of any analyzed event. This change will not signincantly increase the consequences of an accident.

The Surveillance for each DO will still be perfonned on the same Frequency.1he ability of the Surveillance to verify Operability has not changed. This change will not sign 10cantly affect the assumptions relative to the mitigation of accidents or transients. Therefore, the change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will delete the requirement to perform DO SRs on a Staggered Test liasis.

This change does not involve a signincant change in the design or operation of the plant. No hardware is being added to the plant as pan of the proposed change. The proposed change will not introduce any new accident initiators.1herefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signincant reduction in a margin of safety?

The proposed change will delete the requirement to perform DO SRs on a Staggered Test Basis.

The margin of safety is not significantly affected because the Surveillance will still be performed on the same periodicity. Deleting the requirement to stagger the testing of the components provides more Ocxibility to perform the Surveillances with the same train of other equipment in the plant (i.e., Engineered Safety Features equipment). Allowing the same train components to be tested during the same period prevents the opposite train components from becoming inoperable due to a failed Surveillance. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3.8.1 Chanac L3 1.

Does the change involve a signlReant 1:: crease in the probability or consequences of an accident previously evaluated?

'the proposed change will delete the requirement to perform the SR, which veri 0es the manual transfer of the unit power supply from the normal circuit to the alternate circuit, during shutdown. This change will not significantly increase the probability of an accident previously evaluated. The transfer of unit power supply from the normal to the alternate circuit is not an initiator of any analyzed event. This change will not significantly increase the consequences of an accident. While the ideal time to perform this Surveillance is when shut down, this maneuver has been performed at Calvert Cliffs at times other than during a shutdown, safely and without incident. Also, performance of this SR at power may prevent a total loss of offsite power because to the availability of two offsite circuits, whereas performance during a shutdown could risk the loss of all offsite power (only one circuit is required in Modes 5 and 6). This change will not signincantly affect the assumptions relative to the mitigation of accidents or transients.

CALVERT CLIFFS UNITS 1 & 2 3.8 7 Revision 3 i

NO SIGNIFICANT HAZARDS CONSIDERATIONS 4

SECTION 3.8. ELECTRICAL POWER SYSTEMS i

Therefore, the change does not involve a signincant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a !new or different kind of accident from any accident previously evaluated?

4 1he proposed change will delete the requirement to perform the SR, whica verines the manual transfer of the unit power supply from the normal circuit to the alternate circuit, during i

shutdown. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initletors. Therefore, the change does not create the i

possibility of a new or different kind of accident from any accident previously evaluated.

2 3.

Does the change intoh e a signlucant reduction in a maryle of anfety?

t The proposed change will delete the requirement to perform the SR, which verifies the manual transfer of the unit power supply from the normal circuit to the alternate circuit, during i

i shutdown. The margin of safety is not significantly affected because the Surveillance can safely i-be performed when the plant is not in a shutdown Mode. This maneuver has been performed at 4

Calvert Cliffs without incident. Also, performance of this SR at power may prevent a total loss 1

of offsite power because to the availability of two offsite circuits, whereas performance during a 3

shutdown could risk the loss of all offsite power (only one circuit is required in Modes 5 and 6).

l Therefore, the proposed change does not involve a significant reduction in a margin of safety.

,LLI ck===e L6 1.

Does the change involve a significant lurrense in the probability or consequences of an accident previously evaluated?

The proposed change will allow momentary transients below the laad range during a Surveillance to demonstrate that a IXl is capable of synchronizing with the ofTsite electrical system. The DGs and DG tests are not an initiator to any previously evaltated accident, so the i

probability of such events is unchanged. This change will not affect the tes results which prove that the DO can provide sufficient electrical power to support the requirc6 accident mitigation equipment. This change allows momentary transients outside of the DO lotd range, which may 4

be caused by changing loads on the energized bus. As these momentary transients may occur

- under accident conditions, as well as under test conditions, these transients do not invalidate the test. The ability to verify that the DO is capable of providing sufficient power to support the

- required accident mitigation equipment is unchanged, so there is no increase h the consequences of any accidents previously evaluated. Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

l 2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will allow momentary transients below the load range to not invalidate the results of the SR to verify the DO is capable of synchronizing with the offsite electrical system, i

This change does not involve a significar.t change in the design or operation of the plant. No l

hardware is being added to the plant as part of the proposed change. The proposed cha9ge will not introduce any new accident initiators. Therefore, the change does not creat: the possibility 4

of a new or different kind of accident from any accident previously evaluated.

t CALVERT CLIFFS. UNITS 1 & 2 3.8 8 Revision 3 r

r~r

+we ww c--,

y<

,w,ym

.m

,.,y

-w--

,,.-.m,w,e or%-,---~~

r c w --

--c

NO SIGNIFICANT HAZ,ARDS CONSIDERATIONS SECTION 3.3. ELECTRICAL POWER SYSTEMS 3.

Does the change involve a significant reduction in a margin of safety?

'the proposed change will allow momentary transients below the load range to not invalidate a Surveillance test which verifles that the DO is capable of synchronizing with the offsite electrical system. This change is acceptable because such transients may occur under accident conditions or under the test conditions, and therefore, these transients do not invalidate the test results. As i

the test results are still acceptable, the serification that the DO is capable of performing its safety i

function is unchanged. 'lherefore, the proposed change does not involve a significant reduction in a margin of safety, 4

MU c%e L7 1.

Does the change involve a sigalficant increase in the probability or consequences of an accident previously evaluated?

Current Technical Specification SR 4.8.1.1.2.d.4.c requires verification that the automatically bypassed diesel trips are automatically bypassed on a Safety injection Actuation Signal and a simulated loss of offsite power. The ITS SR 3.8.1.14 will require verification that the automaticclly bypassed diesel trips are automatically bypassed on a required actuation signal.

This change is needed because the Diesel Generators have different non critical protective trips l

that are bypassed automatically on a required actuation signal. The specific trips are described in the Bases. 'the Diesel Generators are not an initiator of any accident previously evaluated so the l

probability of an accident previously evaluated is not increased. 'the ITS SR will continue to require testing that the trips are automatically bypassed so the ability of the Diesel Generator to mitigate an accident previously ev.Junted is not affected. 'therefore, this change will not involve an increase in the probability or consequences of an accident previously evaluated.

2.

Does the change create the pelbility of a new or different kind of accident from any accident previously evaluated?

Current Technical Specification SR 4.8.1.1.2.dA.c requires verification that the automatically bypassed diesel trips are automatically bypassed on a Safety injection Actuation Signal and a simulated loss of offsite power. The ITS SR 3.8.l.14 wili require verification that the automatically bypassed diesel trips are automatically bypassed on a required actuation signal.

This change will not physically alter the plant (no new or difTerent types of equipment will be installed). The change does not require any new or unusual operator actions. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signincant reduction in a margin of safety?

Current Technical Specification SR 4.8.1.1.2.d.4.c requires verification that the automatically bypassed diesel trips are automatically bypassed on a Safety injection Actuation Signel and a simulated loss of offsite power, The ITS SR 3.8.1.1.14 will require veri 0 cation that the automatically bypassed diesel trips are automatically bypassed on a required actuation signal.

This change is needed because the Diesel Generators have different non-critical trips that are automatically bypassed on a required actuation signal. The specific trips are described in the Bases. Testing that the automatically bypassed trips are bypassed will continue to be performed.

Therefore, this change does not involve a significant ieduction in the margin of safety.

CALVERT CLIFFS - UNITS 1 & 2.

3.8-9 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS 3.83 Ch='e Li 1.

Does the change involve a significant increase la the probability or consequences of an accident previously evaluated?

Upon a loss of the required offsite power source while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one offsite circuit to Operable status. The i

proposed change would give the option of declaring required features with no olisite power l

inoperable and following the prescribed Actions. There are two previously evaluated accidents considered for a shut down reactor: a fuel handling accident and a boron dilution accident.

l Neither of these analyses are initiated by a loss of offsite power or assume a concurrent loss of l

offsite power. Therefore, the probability of these events is not affected. As a loss of offsite i

power is not assumed in either of these two events, the actions taken in response to a loss of ofTsite power will not affect the actions taken to mitigate these events. Therefore, the i

consequences of these events are not affected. The proposed change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

Upon the loss of ofTsite power while the reactor is shutdown, the proposed change will give the option of declaring affected features with no offsite power inoperable, and following the required Actions instead of suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and immediately initiating corrective actions to restore one offsite circuit to Operable status. This change does not involve a significant change in the design or operation of the plant No hardware is being added to the plant as part of the proposed change. The proposed change may introduce the possibility of a fuel handling accident or boron dilution accident with a loss of ofTsite power, llowever, the Actions entered for the required features will provide the appropriate compensatory measures to ensure the plant is maintained in a safe condition.

Therefore, the change does not create the possibility of a new or difTerent kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

Upon a loss of the required ofTsite power source while shut down, the CTS require suspending Core Alterations, positive reactivity changes, and n,ovement of irradiated fuel, and the immediate initiation of corrective actions to restore one offsite circuit to Operable status. The proposed change would give the option of declaring required features with no offsite power inoperable, and following the prescribed actions. This change will allow an evaluation to be made to determine if some plant operations, such as fuel movement, may continue, while following the Actions for an inopera' ale offsite power source and the inoperable required features. The Actions for the inoperable features provide the appropriate compensato,y measures to ensure the plant is maintained in a safe condition. Allowing an evaluation to determine whether to follow the current set of generic Actions or the specific Actions specified for the inoperable required features will have no effect on the margin of safety. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

CALVERT CLIFFS - UNITS I & 2 3.8 10 Revision 3

NO SIGNIFICANT llAZARl)S CONSIDERATIONS SECTION 3.R. ELECTRICAL POWER SYSTEMS 18.2 Ch===

I J

-1.

Does the change lavolve a significant increase in the probability or consequences of an accident previously evaluated?

l l

1hc proposed change lists the SRs that are required to be performed. Some SRs are not listed lecause these SRs may cause the AC sources to t e rendered inoperable, llowever, these SRs must still be able to be met (l.c., no known problems exist which would cause the SR to fail ifit was perfonned). This change vill prevent the plant from being placed at risk from the loss of an AC source during the perfonnance of these SRs. The Actions will preclude requiring the Operable DO from being paralleled with the olhlte power network, or otherwise rendered inoperable during performance of SRs, and to preclude de energiring a required 4 kV Engineered Safety Feature bus or disconnecting a required offsite circuit during performance of SRs. With limited AC sources available, a single event could compromise both the required circuit and the DG, The SRs are required to still be met, although perfonnance is not required. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients. This change will continue to protect against the single failure assumptions on AC Sources. Thus, this change does not significantly increase the probability of an accident previously evaluated. Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

l The proposed change lists the SRs that are required to be performed. Some SRs are not listed because these SRs may cause the AC sources to be rendered inoperable, llowever, these SRs must still be able to be met (i.e., no known problems exist which would cause the SR to fail if it was performed). This change will prevent the plant from being placed at risk from the loss of an AC source during the performance of these SRs. This change does not involve a significant change in the design or opercion of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not ir.troduce any new accident initiators.

Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change lists the SRs that are required to be performed. Some SRs are not listed because these SRs may cause the AC sources to be rendered inoperable. Ilowever, these SRs must still be able to be met (i.e., no known problems exist which would cause the SR to fall ifit was performed). This change will prevent the plant from being placed at risk from the loss of an AC source during the performance of these SRs. The SRs will still be required to be met, although performance is not required. This will ensure that the required AC sources are not placed at risk when required to support equipment needed for safe Operation in Modes 5 and 6.

Therefore, the proposed change does not invcive a significant reduction in a margin of safety, 18.2 Channe L3 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change deletes tne Action, when one required AC source is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment CALVERT CLIFFS UNITS 1 & 2 3.8 11 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8. ELECTRICAL, POWER SYSTEMS atmosphere to the outside atmosphere to tw either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an Operable automatic purge valve. Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bohs. The remaining Actions to suspend Core Alterations, movement of irradiated fuel, and positive reactivity additions will eliminate the ini'lators of all analped events in Modes 5 and 6 (fuel handling accident and boron dilution event). Thus, this change does not signincantly increase the probability of an accident previously evaluated.

Requirements in other Technical Specifications will ensure the appropriate Actions are taken if core cooling is lost (Reactor Coolant System (RCS) loop requirements in Mode 5, and Shutdown Cooling requirements in Mode 6). As the remaining actions will ensure that the fuel cladding boundary is not comprornised, not requiring containment closure will not change the con 0guration of the accidents previously evaluated.

Therefore, this change does not involve a signincant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any l

accident previously evaluatedY The proposed change deletes the Action, when one required AC source is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind flange, or mamial valve, or be capable of being closed by an Operable automatic purge valve. Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. This change does not involve a signlucant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident inillators. 'iherefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

I 3.

Does the change involve a signlileant reduction in a margin of safety?

The proposed change deletes the Action, when one required AC source is inoperable in Modes 5 and 6, which requhes all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an Operable automatic purge valve. Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. The deletion of this action is acceptable because the remaining Actions to suspend Core Alterations, movement ofirradiated fuel, and positive reactivity additions are sufficient to ensure thst events as analyzed in the safety analyses do not occur. Also, other Technical Specification Actions (located in the RCS Loops in Mode 5, and the Shutdown Cooling [SDC) in Mode 6 Specifications) ensure appropriate Actions are taken if core cooling were lost. As the events that could lead to a release of radioactivity from the fuel are prevented, the additional boundary to release the containment is not necessary.

Therefore, the propoted change does not involve a signl0 cant reduction in a margin of safety.

CALVERT CLIFFS - UNITS 1 & 2 3.8 12 Revision 3

NO SIGNIFICANT HAMRDS CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS Alp Ch==y L1 1.

Doer the change involve a signincant increase in the probability or consequences of an accident previously evaluated?

%e proposed change will increase the allowed outage times (AOTs) when a fuel oil storage tank (FOST) is inoperable from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ,72 hours, or 7 days prior to shutting down, depending on the unit, FOST, and time of the year, to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months ,7 days, and 30 days prior to declaring the DC inoperable, depending on the cause of the inoperability. This change essentially increases the j

AOT prior to shutting down from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ,72 hours, and 7 days, to $ days (48. hour AOF for level plus a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months AOT for the DG),10 days (7 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ), and 33 days (30 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ). His change will not signincantly increase the probability of an accidtnt. He FOST or inoperable DG 15 not an initiator of any analyzed event. The consequence of an accident is l

not significantly increased. The increased AOTs when the FOST level, particulate leveb, and new fuel oil properties are not within limits will not prevent the DG from starting and performing its intended function; however, continuous operation with these parameters out of-i limits is limited due to the degraded fuel oil conditions. His 48. hour AOT is acceptable because of the remaining capacity in the other i OSTs, actions that can be taken to obtain additional fuel l

l oil, and the remote likelihood of an event occurring during this brief period. The 7 day AOT is l

neceptable because high particulate levels do not prevent the fuel oil from burning in the diesel engine, particulate concentration is unlikely to change signincantly between Surveillance Ficquency intervals, and proper engine performance has been recently demonstrated (within 31 days) by other Surveillances. The 30 day AOT is acceptable because the DG will still perform its intended function even though fuel oil properties are outside limits and due to the i

initial tests performed on the new fuel oil. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients. Herefore, this change does not involve a signincant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibliity of a new or different kind of accident from any accident previously evaluated?

He proposed change will increase the AOTs when a FOST is inoperable from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ,72 hours, or 7 days prior to shutting down, depending on the unit, FOST, and time of the year, to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months , 7 days, and 30 days prior to declaring the DG inoperable, depending on the cause of the inoperability. This change essentially increases the AOT prior to shutting down from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and 7 days, to 5 days (48-hour AOT for level plus a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months AOT for the DG),10 days (7 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ), and 33 days (30 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ). This change does not involve a signincant change in the design or operation of the plant, No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signincant reduction in a margin of safety?

The proposed change will increase the AOTs when a FOST is inoperable from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ,72 hours, or 7 days prior to shutting down, depending on the unit, FOST, and time of the year, to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months , 7 days, and 30 days prior to declaring the DG inoperable, depending on the cause of the inopc3111ty. This change essentially increases the AOT prior to shutting down from 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and 7 days, to 5 days (48 hout AOT for level plus a 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months AOT for the DG),10 days (7 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ), and 33 days (30 days plus 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months ). The increase in the AOTs are CALVERT CLIFFS UNITS 1 & 2 3.8 13 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS allowed because the DO will still be capable of starting and loading, however, the fuel oil is degraded or may not contain enough fuel for 7 days. This is acceptable because the proposed AOTs provide a reasonable amount of time to restore the fuel oil while limiting the time in the degraded condition. Also, the increase in AOTs may prevent a transient due to an unnecessary plant shutdown. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

18.3ch...,L2 l

1.

Does the change involve a signincant increase in the probability or consequenca d an accident previously evaluated?

The proposed change deletes the requirements to increase the Frequency of testing (once within oi,e hour and once per eight hours thereafter) on the Operable FOST when one is inoperable.

%1s change will not significantly increase the probability of an accident. The FOST is not an initiator of any analyzed event. He consequences of an accident are not significantly increased.

l The Operable FOST will still be tested at a frequency (31 days) which is adequate to verify i

Operability. The 31. day Frequency in the normal Surveillance Frequency aad is adequate to ensure that a sunicient supply of fuel oil is available, since low level alarms will alert the operator of any low level conditions between Surveillances. Hus, the Operable FOST will continue to be available without the additional testing. His enange will not significantly affect the assumptions relative to the mitigation of accidents or transients. Herefore, this change does not invohe a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

ne proposed change deletes the requirements to increase the Frequency of testing (once within one hour and once per eight hours thercaRer) on the Operable FOST when one is inoperable.

This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. He proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change deletes the requirements to increase the Frequency of testing (once within one hour and once per elght hours thereafter) o the Operable FOST when one is inoperable.

Ellminating the increased interval for the Surveillance is acceptable because the current interval is sufficient to prove the FOST is Operable under normal conditions, and it is, therefore, also acceptable when one FOST in inoperable. Also, low level alarms exist to alert the operator of any low level w.ditions in the FOSTs. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3.8.3 Chance L3 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change will increase the AOTs when No. 21 FOST is inoperable from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 7 days, and 30 days when particulate concentration and new fuel oil propenles are not within CALVERT CLIFFS UNITS 1 & 2 3.8 14 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS 4

limhs. His change will not :ignificantly increase the probability of an accident. Number 21 FOST is not an initiator of any analyzed event. He consequences of an accident are not significantly increased. The increased AOTs, when the particulate levels and new fuel oli properties are not within limits, will not prevent the DO from starting and performing its intended function; however, continuous operation with these parameters out of limits is limited due to the degraded thel oil condition. The 7 day AOT is acceptable because b!gh particulate levels do not prevent the fuel oil from burning in the diesel engine, particulate concentration is unlikely to change significantly between Surveillance Frequency intervals, and proper engine performance has been recently demonstrated (within 31 days). As the FOST and DO will still be capable of performing their intended function, the consequences of increasing the AOT from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 30 days are not increased. His change will not significantly affect the as.amptions relative to the mitigation of accidents or transients. Herefore, the proposed change does not involve a significant increne in the probability or consequence of an accident previously evaluated.

i 4

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

t The proposed change will increase the AOTs when No. 21 FOST is inoperable from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 7 days, and 30 days when particulate concentration and new fuel oil properties are not within limits. This change does not involve a significant change in the design or operation of the plant.

No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

l 3.

Does the change involve a signincant reduction in a margin of safety?

The proposed change will increase the AOTs when No. 21 FOST is inoperable from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 7 days, and 30 days when particulate concentration and new fuel oil properties are not within limits. The increase in the AOTs are allowed because the DO will still be capable of starting and loading, however, the fuel oil is degraded or may not contain enough fuel for 7 days. This is acceptable because the proposed AOTs provide a reasonable amount of time to restore the fuel oil while limiting the time in the degraded condition. Also, the increase in AOTs may prevent a transient due to an unnecessary plant shutdown. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3 3.B.3 Chance L4 1.

Does the change insolve a significant increase in the probability or consequences of an accident previously evaluated?

'The proposed change will increase the AOTs when the No. l A FOST is inoperable from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months ,7 days, and 30 days for level, particulate concentration, and new fuel oil properties not _within limits, respectively. This change does not significantly increase the probability of an accident. The No. l A FOST is not an initiator of any analyzed event. The consequences of an accident are not significantly increased. The increased AOTs when the FOST level, particulate levels, and new fuel oil properties are not within limits will not prevent the DO from starting and performing its intended function; however, continuous operation with these parameters out-oflimits is limited due to the degraded fuel oil conditions. This 48 hour5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months AOT is acceptable because of the remaining capacity in the FOST, procedures will be CALVERT CLIFFS - UNITS I & 2 3.8-15 Revision 3

NO SIGNIFICANT IIAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS initiated to obtain replenishment, and the low probability of an event occurring during this brief period, %e 7 day AOT is acceptable because high particulate levels do not prevent the fuel oil fro.n burning in the diesel engine, particulate concentration is unlikely to change significantly

)

between Surveillance Frequency intervals, and proper engine performance has been recently demonstrated (within 31 days). The 30 day AOT is acceptaole because the DO will still perfonn I

its intended function even though fuel oil properties are outside limits. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients.

Herefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

l 2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will increase the AOTs when No. l A FOST is inoperable from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months ,7 days, and 30 days for level, particulate concentration, and new fuel oil properties not within limits. His change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed cl'ange, ne proposed change will not introduce arv new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previomly evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

He proposed change will increase the AOTs when No. l A FOST is inoperable froin 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months ,7 days, and 30 days for level, particulate concentration, and new fuel oil properties not within limits. The increase in the AOTs are allowed because the DO will still be capable of l

starting and loading, however the fuel oil is degraded or may not contain enough fuel for 7 days.

This is acceptable because the proposed AOTs provide a reasonable amount of time to restore the fuel oil while limiting the time in the degraded condition. Also, the increase in AOTs may prevent a transient due to an unnecessary plant shutdown. Herefore, the proposed change does not intolve a significant reduction in a margin of safety.

Mi.3 Chance L3 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

l-

%c proposed change will delete the requirement to verify the FOS' el on a Staggered Test l

Basis. This change will not significantly increase the probability.: an accident previously l

cvaluated. %c FOS 1 and DO inoperability are not an initiator of any analyzed event. This l

chang; will not significantly increase the consequences of an accident. He Surveillance for i

each FOST will still be pcFormed on *.he me Frequeacy. He ability of the Surveillance to verify Operability has not caanged. tins snange will not significantly affect the assumptions relative to the mitigation of accidents or transients. Therefore, the change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

l l

2.

Does the change create the possibility of a new or different kind of accident from any I

accident previously evaluated?

The proposed change will delete the requirement to verify the FOST level on a Staggered Test Dasis. This change does not involve a significant change in the design or operation of de plant.

No hardware is being added to the plant as part of the proposed change. The proposed change CALVERT CLIFFS - UNITS I & 2 3.8 16 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.N o ELECTRICAL POWER SYSTEMS will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change insolve a signi6 cant reduction in a margin of safety?

He proposed change will delet: the requirement to verify the FOST level on a Staggered Test Basis. The margin of safety is not signi0cantly affected because the Surveillance will still be i

performed on the same periodicity. Deleting the requirement to stagger the testing of the FOST provides mcita Ocxibility to perform the Surveillances with the DO to which it is normally aligned. Allowing the same train components to be tested during the same period prevents the opposite train components from becoming inoperable due to a failed Surveillance. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3.8.4 Change L1

1. -

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change adds an alternative SR (modified perfonnance discharge test) which encompasses both the performance discharge test and the service test and deletes the requirement to perform the perfonnance discharge test subsequent to the service test. This change will not significantly increase the probability of an accident. The DC Sources are not an initiator of any analyzed event. This change will still ensure that the battery will perform as designed by meeting the requirements of the battery service test and perfonnance discharge test. The results of the modined performance test encompass the requirements of the performance discharge test and the service test with the performance of one Surveillance. This change is consistent with the recommendations ofinstitute of Electrical and Electronic Engineers (IEEE)-4501995. As the performance of the batteries is unalTected, this change will not significantly affect the assumptions relative to the mitigation of accidents or transients. The proposed change does not significantly afTect initiators or mitigation of analyzed events, and therefore does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.~

Does the change create the possibility of a new or different Idnd of accident from any accident previously evaluated?

The proposed change adds an alternative SR (modified performance discharge test) which encompasses both the performance discharge test and the service test and deletes the requirement to perform the performance discharge test subsequent to the service test. His change does not involve a significant change in the design or operation of the plant. No hardware is being added -

to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant red' 'lon in a margin of safety?

The proposed change adds an alternative SR (modified performance discharge test) which encompasses both the performance discharge test and the service test and deletes the requirement to perform the performance discharge test subsequent to the service test. This change follows the recommendations ofIEEE-4501995. This change will still ensure that the battery performs as designed by meeting all the requirements of the battery service test and performance discharge CALVERT CLIFFS - UNITS 1 & 2 3.8 17 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3 8. ELECTRICAL POWER SYSTEMS test. He efTectiveness of the testing is unaffected. Therefore, the proposed change does not involve a significard reduction in a margin of safety.

,LIL4 Channe Lt 1.

Does the change insolve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change decreases the Frequency for the battery charger test and the battery service test from 18 months to 24 months. He change does not significantly increase the probability of an accident. The DC sources are not an initiator of any analyzed event. The requirement to perform these tests every 18 months can place the unit in jeopardy if the reserved battery or one of the battery chargers was inoperable, because for both these tests, the battery is required to be discharged. Tims, it is recommended (Regulatory Guides 1.32 and 1.129 for the service test) that these tests be performed on a refueling interval during shutdown (which is every 24 months for Calvert Clifts). De performance of these SRs every 24 months will continue to prove the battery and charger are capable of performing their design function, so the consequences of previously evaluated accidents are unaffected. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients. Therefore, this change does not -

involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change decreases the Frequency for the battery charger test and the battery service test from 18 months to 24 months. His change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or difTerent kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change decreases the Frequency for me battery charger test and the battery service test from 18 months to 24 months. It is recommended by Regulatory Guides 1.32 and 1.129 that the service test be performed every 24 months (during a refueling shutdown) because the battery is required to be discharged. The charger test should also be performed on a refueling interval because this test requires the charger to charge the battery from its design minimum charge state.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3.8.4 Chanac L3 1,

Does the change involve a significant increase in the probability or consequentes of an accident previously evaluated?

The adjectives " clean, tight" are removed from the description for the surveillance to verify the condition of cell-to-cell and terminal connections. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. Thus, the removal of a requirement for " clean, tight" connections will not increase the probability of any accident previously evaluated. The proposed SRs continue to provide adequate assurance of OPERABLE DC electrical sources CALVERT CLIFFS UNITS 1 & 2 3.8 18 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3-8 o ELECTRICAL POWER SYSTEMS because the resistance measurements provide sufficient indication of an adequate connection and 3

the requirement for clean connections is adequately addressed by the ITS removal of visible corrosion requirement. He proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

~

ne adjectives " clean, tight" are removed from the description for the surveillance to verify the condition of cell to cell and terminal connections. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the_ proposed change. %c proposed change will not introduce any new accident initiators.

Herefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a signifleant reduction in a margin of safety?

He adjectives " clean, tight" are removed from the description for the surveillance to verify the condition of cell to-cell and terminal connections. The proposed SRs continue to provide adequate assurance of OPERABLE DC electrical power sources. In addition, the tightness of the connections will be assured through the evaluation of connection resistance and the requirement for the connection to be clean is adequately addressed by the removal of visible corrosion i

requirement. Therefore, this change does not involve a significant reduction in a margin of

safety, t

3.8.4 Chance L4 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The change removes the requirement to charge the battery to at least 95% capacity in less than or i

equal to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months after a battery service test. The DC electrical power sources are used to support mitipilon of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. Hus, the removal of the requirement to recharge the battery to at least 95% capacity in sl 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months at the completion of the battery service test will not increase the probability of any accident previously evaluated. The battery is inoperable at the completion of the service test; thus, to restore it to OPERABLE status, the battery must be recharged. If during recharging, the charger does not function as required, evaluations would bc performed to ensure continued OPERABILITY of the charger, if the results of these evaluations can not confirm the continued OPERABILITY of the charger, then the applicable ACTIONS of the Technical Specification would be taken. Thus, the explicit requirement to recharge the battery within a certain time period is considered to be unnecessary for ensuring the batteries and chargers are maintained OPERABLE. Battery and charger Operability will continue to be monitored. The proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

d s

CALVERT CLIFFS - UNITS 1 & 2 3.8 19 Revision 3 l

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8. ELECTRICAL POWER SYSTEMS 2.

Does the change create the possibility of a new or different hind of accident from any accident previously evaluated?

The change removes the requirement to charge the battery to at least 95% capacity in less than or equal to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months after a battery service test. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators.

Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does this change involve a significant reduction in a margin of safety?

He change removes the requirement to charge the battery to at least 95% capacity in less than or equal to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months after a battery service test. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyz~l accident. Hus, the removal of the requirement to recharge the battery to at least 95% capacity in s 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months at the completion of the battery service test will not increase the probability of any accident previously evaluated. He battery is inoperable at the completion of the service test; thus, to restore it to OPERABLE status, the battery must be recharged, if during recha.ging, the charger does not function as required, evaluations would be performed to ensure continued OPERABILITY of the charger. If the results of these evaLiations can not confirm the continued OPERABIL11Y of the charger, then the applicable ACTIONS of the Technical Speclucation would be taken. Thus, the explicit requirement to recharge the battery within a certain time period is considered to be unnecessary for ensuring the batteries and chargers are maintained OPERABLE. Battery and charger Operability will continue to be monitored. Therefore, the change does not involve a signl0 cant reduction in a margin of safety.

3.8.4 Chance 13 i

1.

Does the change involve a significant increase in the probab'lity or consequences of an accident previously evaluated?

This change removes the requirement that emergency loads of the design duty cycle shall be documented and updated, as appropriate, in the system description contained in Updated Final Safety Analysis Report (UFSAR) Chapter 8, and updated in acccrdance with 10 CFR 50.7)(e).

He DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. The details of the location of the documentation and updating of the emergency loads of the battery design duty cycle do not necessarily relate to battery OPERABILITY, The requirements for maintaining and updating of these emergency loads in the UFSAR are adequately addressed by the requirements of 10 CFR 50.59,10 CFR 50.71(c), and 10 CFR Part 50, Appendix B, Section 111 (Design Control). Compliance with the requirements of 10 CFR Part 50 and 10 CFR Part 50,

- Appendix B, is required by the Calvert Cliffs Unit 1 and Unit 2 Operating Licenses, The requirement to verify battery capacity is edequate to supply and maintain in OPERABLE status the required emergency loads of the design duty cycle when subjected to a battery service test is still maintained. Therefore, these explicit documentation requirements are not required to be in Technical Speci0 cations. The proposed change does not signincantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

CALVERT CLIFFS - UNITS 1 & 2 3.8 20 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 ELECTRICAL POWER SYSTEMS l

2.

Does the chasse create the possibility of a new or different kind of accident from any accident previously evaluated?

%;s change removes the requirement that emergency loads of the design duty cycle shall be documented and updated, as appropriate, in the system description contained in UFSAR Chapter 8, and updated in accordance with 10 CFR 50.71(c). This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as pan of the proposed change. The proposed change will not introduce any new accident initiators. %erefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated, i

l I

i 3.

Does this change involve a significant reduction in a margin of safety?

l His change removes the requirement that emergency loads of the design duty cycle shall be I

documented and ui< lated, as appropriate, in the system description contained in UFSAR Chapter 8, and updated in accordance with 10 CFR 50.7)(c). The proposed deletion of the details of the location of the documentation and updaing of the emergency loads of the battery design duty cycle does not impact any margin of safety. The requirements for maintaining and updating of these emergency loads in the UFSAR continue to be adequately addressed by the requirements of 10 CFR 50.59,10 CFR 50.7l(c), and 10 CFR Pan 50, Appendix B, Section ill l

(Design Control). Compliance with the requirements of 10 CFR Pan 50 and 10 CFR Pan 50, Appendix D, is required by the Calvert Cliffs Unit I and Unit 2 Operatir.g Licenses, in addition, the requirement to verify battery capacity is adequate to supply and maintain in OPERABLE 1

status the required emergency loads of the design duty cycle when subjected to a battery service test is still maintained. Derefore, this change does not involve a significant reduction in a margin of safety.

18.5 Charoe L.1 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

Upon a loss of the required DC source while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one DC source to Operable status. The proposed change would give the option of declaring required features with no DC source inoperable and following the prescribed actions. There are two previously evaluated accidents considered for a shut down a fuel handling accident and a boron dilution accident. Neither of these analyses are reactor:

initiated by a loss of the DC source or assume a concurrent loss of the DC source. Therefore, the probability of these events is not affected. As a loss of the DC source is not assumed in either of these two events, the actions taken in response to a loss of the DC source will not afTect the actions taken to mitigate these events. Therefore, the consequences of these events are not affected. %c proposed change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2, Does the change create the possibility of a new or different kind of accident from any acendent previously evaluated?

Upon a loss of the required DC source while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one DC source to Operable status. The proposed change CALVERT CLIFFS UNITS 1 & 2 3.8 21 Revision 3 e

NO SIGNIFICANT IIAZARDS CONSIDERATIONS SECTION 3.8 o ELECTRICAL POWER SYSTEMS would give the option of declaring required features with no DC source inoperable and following the prescribed Actions. His chnge does not involve a signl0 cant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change.

he proposed change may introduce the possibility of a fuel handling accident or boron dilution accident with a loss of the DC source. Ilowever, she Actions entered for the required features will provide the appropriate compensatory measures to ensure the plant is maintained in a safe condition. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

l 3.

Does the change involve a significant reduction in a margin of safety?

Upon a loss of the required DC source while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one DC source to Opcable status, ne propos?d change would give the option of declaring required features with no DC source inoperable and following the prescribed Actions. The proposed change would give the option of declaring required features with no DC source inoperable, and following the prescribed Actions. His change will allow an evaluation to be made to determine if some plant operations, such as fuel movement, may continue while following the Actions for an inoperable DC source and the inoperable required features. The Actions for the inoperable features provide the appropriate compensr. tory measures to ensure '.he plant is maintained in a safe condition. Allowing an evaluation to determine whether to follow the current set of generic Actions or the specine Actions specified for the inoperable required features will have no efTect on the margin of safety. Herefore, the proposed change does not involve a signi0 cant reduction in a margin of safety.

315 Channe L2 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change lists the SR that is required to be performed. Some SRs are not listed because these SRs may cause the DC sources to be rendered inoperable, flowever, these SRs must still be able to be met (i.e., no known problems exist which would cause the SR to fail ifit was performed). This change will prevent he plant from being placed at risk from the loss of a DC source during the performance of these SRs. The Actions will preclude SRs on the battery or the charger which could render them inoperable and to preclude de energizing a required AC vital bus during performance of SRs. With limited DC sources available, a single event could compromise the required DC source. The SRs are required to still be met, although performance is not required. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients. His change will continue to protect against the single failure assumptions on DC Sources. Thus, this change does not signincantly increase the probability of an accident previously evaluated. Therefore, this change does not involve a signlucant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change lists the SR that is required to be performed. Some SRs are not listed because these SFs may cause the DC sources to be rendered inoperable. Ilowever, these SRs must still be able to be met (i.e., no known problems exist which would cause the SR to fail if it was performed). This change will prevent the plant from being placed at risk from the loss of a

~

C/ <ERT CLIFFS - UNITS I & 2 3.8-22 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3:8. ELECTRICAL POWER SYSTEMS

[

l L 0 source during the performance of these SRs. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators.

Herefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change lists the SR that is required to be performed. Some SRs are not listed t

because these SRs may cause the DC sources to be rendered inoperable, llowever, these SRs must still be able to be met (l.c., no known problems exist which would cause the SR to fall if it was performed). This change will prevent the plant from being placed at risk from the loss of a DC source during the performance of these SRs. The SRs will still be required to be met, I

although performance is not required. This will ensure that the required DC sources are not placed at risk when required to support equipment needed for safe Operation in Modes 5 and 6.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

,13.5 Chance L3 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change deletes the Actior, when one required DC source is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, bliad flange, or rianual valve, or be capable of being closed by an Cherable automatic purge valve. Also deleted is the Action which requires _a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. The remaining Actions to suspend Core Alterations, movement of irradiated fuel, and positive reactivity additions will climinate the initiators of all analyzed evo ts in Modes 5 and 6 (fuel handling accident and boron dilution event). Thus, this change does not significantly increase the probability of an accident previously evaluated.

Requirements in other Technical Specifications will ensure the appropriate Actions are taken if core cooling is lost (RCS loop requirements in Mode 5, and SDC requirements in Mode 6). As *.he remaining Actions will ensure that th: fuel cladding boundary is not compromised, not requiring containment closure will not change the configuration of the accidents previously evaluated. Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change deletes the Action, when one required DC source is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an Operable automatic purge valve. Also delet id is the Action which requires a minimum of one door in each air lock to be closed, and th e equipment door closed and held in place by a minimum of four bolts. This change does m t involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. De proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

I CALVERT CLIFFS UNITS I & 2 3.8-23 Revision 3

NO SIGNIFICANT llAZARDS CONSIDERATIONS SECTION 3.8 ELECTRICAL POWER SYSTEMS 3.

Does the change involve a significant reduction in a margin of safety?

ei The proposed change deletes the Action, when one required DC source is ino, sble in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment f*

atmosphere to the outside atmosphe~ to be either closed by an isciation valve, blind flange, or manual valve, or be capable of being closed by an Operable automatic purge valve. Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. The deletion of this Action is acceptable because the remaining Actions to suspend Core Alterations, movement ofirradiated fuel, and positive reactivity additions are sufficient to ensure that events as analyzed in the safety i

analyses do not occur. Also, other Technical Specification Actions (located in the RCS Loops in Mode 5, and the SDC in Mode 6 Specifications) ensure appropriate Actions are taken if core cooling was lost. As the events that could lead to a release of radioactivity from the fuel are prevented, the additional boundary to release the containment is not necessary. Therefore, the proposed change does not involve a significant reduction in a margin of safety.

3J.5 Change L.4 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

This change adds a Note that exiudes the requirement to perform certain surveillances on Shutdown DC sowces. These surveillances involve tests that would cause the required Operable Battery to be rendered inoperable. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. The proposed surveillances continue to provide adequate assurance of OPERABLE batteries. The proposed change does not significantly affect the initiators e mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

2.

Does the chance y y; n the possibility of a new or different kind of accident from any accident previotaly n atuand?

This change adds a Note that excludes the requirement to perform certain surveillances on Shutdown DC sources. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change.

The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does this change involve a significant reduction in a margin of safety?

This change adds a Note that excludes the reou!rement to perform certain surveillances on Shutdown DC sources. This change does not involve a significant reduction in a margin of safety since the proposed change removes requirements for rendering the required battery (s) inoperable. Omitting this condition represents a significant improvement in the margin of safety by removing the potential for an event without the required power source (s). Therefore, this change does not involve a significant reduction in a margin of safety.

CALVERT CLIFFS - UNITS 1 & 2 3.e-24 Revision 3

N NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 - ELEC'IREAL POWER SYSTEMS 3.8.6 Ch==se L1 1.

Does the change involve a significant increase in the protelMy or consequences of an accident previously evaluated?

The proposed change will add Actions to allow battery cell parameters to be restored instead of immediately declaring the battery inoperable. This change will not significantly increase the ptobability of an accident. The DC sources or more specifically the battery cell parameters are 4

not initiators of any analyzed event, increasing the time allowed to restore the batterv to Operable status when it is inoperable due to battery cell parameters is acceptable because although the battery may be degraded there is sufficient capacity for it to perform its intended j

ftmetion. Also, some battery Surveillances will be performed at an increased frequency which l will provide indication of further degradation. As the battery is still capable of performing its function the consequences is not significantly increased by allowing an allowed outage time.

Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will add Actions to allow battery cell parameters to be restored instead of immediately declaring the battery inoperable, This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators.

Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

Does the change involve a significant reduction in a margin of safety?

The proposed cbange will add Actions to allow battery cell parameters to be restored instead of immediately declaring the battery inoperable. Even though the battery may be degraded due to battery cell parameters, it is still capable of performing its intended function for a limited period of time. Surveillances will be performed on an increased frequency to monitor further degradation. Allowing time to restore the battery to Operable status may prevent an unnecessary j:

plant shutdown which is a plant transient. Therefore, the proposed change does not involve a i:

significant reduction in a margin of safety.

3.8.6 Chanac I.3 4

1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

4 This change provides an allowance for electrolyte level to increase by 1/4 inch after an

- equalizing charge. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously j

analyzed accident. Thus, a temporary increase in electrolyte level due to an equalizing charge will not increase the probability of any accident previously evaluated. The proposed LCO and SRs continue to provide adequate assurance of OPERABLE batteries since the temporary change in electrolyte level does not affect the battery's capability to perform its required function. The proposed change does not significantly affect the initiators or mitigation of analyzed events, and i

therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

- CALVERT CLIFFS - UNITS 1 & 2 3.8 25 Revision 3

,.+w.---

g.-

NO SIGNIFICANT IIAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS 2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

This change provides an allowance for electrolyte level to increase by 1/4 inch after an equalizing charge. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

This change, which allows a temporary increase in electrolyte level due to an equalizing charge, is acceptable since the change in electrolyte level is understood, known to be temporary, and recognized as not impacting the battery's capability to perform its safety function. Since the proposed change does not impact the battery's capability to perform its intended safety function, the change does not involve a significant reduction in a margin of safety.

M,6 Chance L3 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

This change provides an allowance for electrolyte level to be 1/4 inch above the maximum level indication marks. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. Thus, the increase in the maximum allowed electrolyte level will not increase the probability of any accident previously evaluated. The proposed LCO and SRs continue to provide adequate assurance of OPERABLE batteries since the increase in the maximum allowed electrolyte level does not affect the battery's capability to perform its required function. The proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

2, Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

This change provides an allowance for electrolyte level to be 1/4 inch above the maximum level indication marks. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

This change, which allows an increase. in the maximum allowed electrolyte level, is acceptable since the change is consistent wi h nanufacturer's recommendations and recognized as not t

impacting the battery's capability to perfor.n its safety function. Since the proposed change does not impact the battery's capabihty to perform its intended safety function, the change does not involve a significant reduction in a marg!n of safety.

CALVERT CLIFFS - UNITS 1 & 2 3.8-26 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS

,L8.6 Chance L4 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

This change changes the temperature and level correction requirements for specific gravity. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. Thus, the change to temperature and level correction requirements for specific gravity readings will not increase the probability of any accident previously evaluated. The proposed LCO and SRs continue to provide adequate assurance of OPERABLE batteries since the change to temperature and level correction requirements for specific gravity readings does not affect the battery's capability to perform its required function. The proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

This change changes the temperature and level correction requirements for specific gravity. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a marbn of safety?

This change, which includes the details of temperature and level corr:ction requirements for specific gravity readings in the ITS Bases and eliminates the requirement for level correction if battery charging current is <2 amps when on float charge, is acceptable since the 2 amp charging current provides an indication of acceptable overall battery condition without the need to correct for electrolyte level and is recognized'as not impacting the battery's capability to perform its safety function. in addition, Technical Specifications will continue to require temperature and level corrections, except when charging current is < 2 amps when on float charge. Since the proposed change does not impact the battery's capability to perform its intended safety function, the change does not involve a significant reduction in a margin of safety.

3.8.6 Chance L5 j

1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

This change removes the requirement to verify that the voltage of each connected battery cell has not decreased by more than 0.10 volts from the nlue observed during the latest performance discharge test. The DC electrical power scutes are used to support mitigation of the consequences of an accident; however, they are not considered the initiator of any previously analyzed accident. Thus, the change will not increase the probability of any accident previously evaluated. This requirement is not included in the Calvert Cliffs ITS since it requires measurement and trending of degradation of a given cell. Degradation does not necessarily mean that the battery is inoperable. The requirement to verify battery cell voltage is within required limits is still maintained in ITS surveillances. In addition, the requirement for

'CALVERT CLIFFS - UNITS 1 & 2 3.8-27 Revision 3

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS monitoring and trending degradation of battery cells is adequately addressed by the requirements of 10 CFR 50.65. Compliance with 10 CFR 50.65 is required by the Calvert Cliffs Unit I and Unit 2 Operating Licenses. As a result, accidem consequences are unaffected by the deletion of the explicit requirement to perform monitoring and trending of battery cell voltage degradation.

The proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated, 2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

This change removes the requirement to verify that the voltage of each connected battery cell has not decreased by more than 0.10 volts from the value observed during the latest performance discharge test. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

This change removes the requirement to verify that the voltage of each connected battery cell has not decreased by more than 0.10 volts from the value observed during the latest performance discharge test. The proposed deletion of the explicit requirement to monitor and trend hattery cell voltage degradation does not impact any margin of safety. This requirement is not included in the Calvert Cliffs ITS since it basically requires measurement and trending of degradation of a given cell. Degradation does not necessarily mean that the battery is inoperable. The requirement to verify battery cell voltage is within required limits is still maintained in ITS surveillances, in addition, the requirement for monitoring and trending degradation of battery cells is adequately addressed by the requirements of 10 CFR 50.65. Compliance with 10 CFR 50.65 is required by the Calvert Cliffs Unit I and Unit 2 Operating Licenses. As a result, the explicit requirement to perform monitoring and trending of battery cell voltage degradation is not required to be in Technical Specifications to ensure the batteries are maintained OPEltABLE. Therefore, this change does not involve a significant reduction in a margin of safety.

3.8.6 Change L.6 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

This cl ange provides the option of monitoring float charging curreni instead of specific gravity und::r specific conditions. The DC electrical power sources are used to support mitigation of the consequences of an accident; however, tney are not considered the initiator of any previously analyzed accident. Thus, this change will not increase the probability of any accident previously evaluated. The proposed LCO and surveillances continue to provide adequate assurance of OPERABLE batteries since the change in method for ensuring the battery state of charge does not affect the battery's capability to perform its required function. The proposed change does not significantly affect the initiators or mitigation of analyzed events, and therefore does not involve an increase in the probability or consequence of an accident previously evaluated.

CALVERT CLIFFS - UNITS 1 & 2 3.8 28 Revision 3

NO SIGNIFICANT IIAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS 2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

This change provides the option of monitoring float charging curret instead of specific gravity under specific conditions. This change does not involve a signifkant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change.

The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

This change provides the option of monitoring float charging current instead of specific gravity under specific conditions. This change does not involve a significant reduction in a margin of safety since the proposed alterrste monitoring requirement provides at least the same level of monitoring of the battery's state of charge as does the current requirement. In addition, the proposed alternate requirement provides more accurate information of the battery's state of charge during a battery recharge. Since the proposed change does not impact the battery's capability to perform its intended safety function, the change does not involve a significant reduction in a margin of safety.

3.8.6 Chance L.7 l

1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change will replace the current requirement to verify the specific gravity to not have decreased more than 0.02 from the value observed during the previous test with the requirement that the specific gravity for the average of connected battery cells be h 1.205. The proposed change also revises the specific gravity limit on individual connected cells to be consistent with IEEE battery working group recommendations. - This c'.ange will not significantly increase the probability of an accident. The DC sources or more specifically the battery cell parameters are not initiators of any analyzed event. The consequences of an accident are not significantly increased. This change revises the acceptance criteria. This change ensures l that the effect of a highly charged or new cell does not mask overall degradation of the battery, whereas applying individual criteria to each cell could mask the overall degradation. Other SRs performed on individual cells will ensure that any degradation of individual cells will be identified, in addition, the proposed LCO and SRs continue to ensure the battery's state of charge does not effect the battery's capability to perform its intended function. This change will not significantly affect the assumptions relative to the mitigation of accidents or transients.

Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change will replace the current requirement to verify the specific gravity to not have decreased more than 0.02 from the value observed during the previous test with the requirement that the specific gravity for the average of connected battery cells be 21.205. The proposed change also revises the specific gravity limit on individual connected cells to be consistent with IEEE battery working group recommendations. This change does not involve a CALVERT CLIFFS - UNITS 1 & 2 3.8-29 Revision 3 J

NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3:8 - ELECTRICAL POWER SYSTEMS significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any new accident initiators. Therefore, the change does not create the possibility of a new or different kind of

- accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change will replace the current requirement to verify the specific gravity to not have decreased more than 0.02 from the value observed during the previous test with the requirement that the specific gravity for the average of connected battery cells be h 1.205, ne proposed change also revises the specific gravity limit on individual connected cells to be consistent with IEEE battery working group recommendations. His change will ensure that the overall degradation of a battery is not masked by concentrating on the results of individual cell's specific gravity. Other SRs on individual cells will ensure that any degradation of an individual cells will be identified, in addition, the proposed LCO and SRs continue to ensure the battery's state of charge does not effect the battery's capability to perform its intended function. -As the ability of the battery to perform its function is unaffected, the proposed change does not involve a significant reduction in a margin of safety.

L 3.8.10 Chance L.1 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

[

Upon a loss of a required distribution subsystem while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one offsite circuit to Operable status. The proposed change would give the option of declaring required features with no distribution subsystem inoperable and following the prescribed Actions. There are two previously evaluated accidents considered for a shutdown reactor: a fuel handling accident and a boron dilution accident. Neither of these analyses are initiated by a loss of a required distribution subsystem.

Therefore, the probability of these events is not affected. As a loss of offsite power is not assumed in either of these two events, the Actions taken in response to a loss of offsite power will not affect the Actions taken to mitigate these events. Therefore, the consequences of these events are not affected. The proposed change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

Upon a loss of a required distribution subsystem while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one offsite circuit to Operable status. The proposed change would give the option of declaring required features with no offsite power inoperable and following the prescribed Actions. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change may introduce the possibility of a fuel handling accident or boron dilution accident with a loss of offsite power. However, the Actions entered for the required features will provide the appropriate compensatory measures to ensure the plant CALVERT CLIFFS - UNITS 1 & 2 3.8-30 Revision 3

_--,-N

1 NO SIGNIFICANT HAZARDS CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS is maintained in a safe condition. Herefore, the change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

Upon a loss of a required distribution subsystem while shutdown, the CTS require suspending Core Alterations, positive reactivity changes, and movement of irradiated fuel, and the immediate initiation of corrective actions to restore one offsite circuit to Operable status. The proposed change would give the option of declaring required features with distribution subsystem inoperable and following the prescribed Actions. This change will allow an evaluation to be made to determine if some plant operations, such as fuel movement, may.

continue while following the Actions for an inoperable offsite power source and the inoperable required features. The Actions for the inoperable features provide the appropriate compensatory measures to ensure the plant is maintained in a safe condition. Allowing an evaluation to determine whether to follow the current set of generic Actions or the specific Actions specified for the inoperable required features will have no effect on the margin of safety. Therefore, the proposed change does not involve a signif' cant reduction in a margin of safety.

3.8.10 Chance a 1.

Does the change involve a significant increase in the probability or consequences of an accident previously evaluated?

The proposed change deletes the Action, when one required distribution subsystem is inoperah" in Modes 5 and 6, which requires all containment penetrations providing direct access from a containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind flange, or man'ial valve, or be capable of being closed by an Operable automatic purge valve.

Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. The remaining Actions to suspend Core Alterations, movement of irradiated fuel, and positive reactivity additions will ehminate the initiators of all analyzed events in Modes 5 and 6 (fuel handling accident and boron dilution event). Thus, this change does not significantly increase the probability of an accident previously evaluated. Requirements in other Technical Specifications will ensure the appropriate Actions are taken if core cooling is lost (RCS loop requirements in Mode 5, and SDC requirements in Mode 6). As the remaining Actions will ensure that the fuel cladding boundary is not compromised, not requiring containment closure will not change the configuration of the accidents previously evaluated. Therefore, this change does not involve a significant increase in the probability or consequence of an accident previously evaluated.

2.

Does the change create the possibility of a new or different kind of accident from any accident previously evaluated?

The proposed change deletes the Action, when one required distribution subsystem is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind fiange, or manual valve, or be capable of being closed by an Operable automatic purge valve.

Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. This change does not involve a significant change in the design or operation of the plant. No hardware is being added to the plant as part of the proposed change. The proposed change will not introduce any CALVERT CLIFFS - UNITS 1 & 2 3.8-31 Revision 3

NO SIGNIFICANT HAZARDS _ CONSIDERATIONS SECTION 3.8 - ELECTRICAL POWER SYSTEMS new accident initiators Therefore, the change does not create the possibhity of a new or different kind of accident from any accident previously evaluated.

3.

Does the change involve a significant reduction in a margin of safety?

The proposed change deletes the Action, when one required distribution subsystem is inoperable in Modes 5 and 6, which requires all containment penetrations providing direct access from the containment atmosphere to the outside atmosphere to be either closed by an isolation valve, blind flange, or manual valve, or be capable of being closed by an Operable automatic purge valve.

Also deleted is the Action which requires a minimum of one door in each air lock to be closed, and the equipment door closed and held in place by a minimum of four bolts. The deletion of this Action is acceptable because the remaining Actions to suspend Core Alterations, movement ofirradiated fuel, and positive reactivity additions are sufficient to ensure that events as analyzed in the safety analyses do not occur. Also, other Technical Specification Actions (lo:ated in the RCS Loops in Mode 5, and the SDC in Mode 6 Specifications) ensure appropriate Actions are taken if core cooling was lost. As the events that could lead to a release of radioactivity from the fuel are prevented, the additional boundary to release the containment is act necessary.

Therefore, the proposed change does not involve a significant reduction in a margin of safety, ENVIRONMENTAL ASSESSMENT This proposed Technical Specification changes have been evaluated against the criteria for and identification oflicensing and regulatory Actions requiring environmental assessment in accordance with 10 CFR 51.21. It has been determined that the proposed changes meet the criteria for categorical exclusion as provided for under 10 CFR 51.22(c)(9). The following is a discussion of how the proposed Technical Specification changes meet the criteria for categorical exclusion.

10 CFR St.22(c)(9): Although the proposed changes involve changes to requirements with respect to inspection or Surveillance Requirements, (i) proposed changes involve No Significant Hazards Consideration (refer to the No Significant 11azards Consideration section of this Technical Specification Change Request);

(ii) there are no significant changes in the types or significant increase in the amounts of any effluents that may be released offsite since the proposed changes do not affect the generation of any radioactive effluents nor do they affect any of the permitted release paths; and (iii) there is no significant increase in individual or cumulative occupational radiation exposure.

Accordingly, the proposed changes meet the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9), Based on the aforementioned and pursuant to 10 CFR 51.22 (b), no environmental assessment or environmental impact statement need be prepared in connection with issuance of an amendment to the Technical Specifications incorporating the proposed changes of this request.

CALVERT CLIFFS - UNITS 1 & 2 3.8-32 Revision 3

4 A

a DC Sources-Operating 3.8.4 (crs>

3.8 ELECTRICAL POWER SYSTEMS

~

3.8.4 DC Sources-Operatina 45 dm.(2

/M LCO 3,8.4 (TV Twin vars Trafn 11 DC electrical 66Fer Aub(vstaa shall be OPERABLE.

- (3, ?,1. 3 )-

APPLICABILITY:

MODES 1, 2, 3, and 4.

. ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME I.

M

f. One D ctrjcal)

%1 Restore DCATjetriga 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2.

3,9.2 3h 6 wtr systemf

>I 8f (pop s#bsyyte_m g

AO*l[

inoperable n_ _

UVLMABLE status.

@,'./II*). D N 9 l4

%s L

I[.3*34 E',

Required Action and Be in MODE 3.

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months C associated Completion

( >("[,

Time not met.

MQ

\\ '*

~

l Be in MODE 5.

36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months e

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY b

SR 3.8.4.1 Ver Mi -tery terminal voltage is 7 days It {}t9/25)l) V on float charge.

.d.g.t.32a.4)

' g g

continued)

A, o.. bc. etw.

..l I AA I bec igy'dl' Al 6 as t<3 g,3

{

g i

a e.pr.W kb b

od + p<dk. J<y.

re un a an io r < s, <

39,g,3 Lik.j ea+3.W.

AcmOJ ba.

j CE00 STS 3.8-25 Rev 1, 04/07/95 1

4 4

.m.

DC Sources-Operating 3.8.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.4.2 Verify no visible corrosion at battery 92 days Ne s terminals and connectors.

Q%$

'/

g Verify battery connection resistantemisr

{$4E-5ohgfori I >5 onml for int -cell co nectio s,'

!=

er-rack nnec ion /s, n

i

( ;1E-5fmc for nter-ti conn A

and 5 ME-5 oh for te inal c nectrons R 3.8.4.3 Verify battery cells, cell lates, and ths

<4t 2 Ata.i racks show no visual indica $ ion of physical damage or abnormal deterioration.

(-fLi d, y. [,,

p,,f5,-.u c.

wm --

u SR 3.8.4.4 Remove visible terminal corrosion and nths verify battery cell to cell __and terminal

<4L12c1 connections are (cJean anytighP. ad coated with anti-corrosion material.~ g 4

O2 Verifybatteryconnectionresistance@s\\

h--months SR 3.8.4.5 T F5 ohm for in r-celi co necTion k'~ '*

s/[TE-5o for i er-rack nnect s.

n.o u

t t'<-

1E-5/1m for nter-ti connec ons

. M 7-and s (IE-5 oh fe term nal co cti

., =.

(continued) 3 CEOG STS 3.8-26 Rev 1, 04/07/95

DC Sources-Operating CTS) 3.8.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR'3.8.4.6 E------ p-lG Thfs SuryeClanc all node p arme (4.?731C)-

il00E 1/ 2, 3,

4. rNow ver, cr it ma be}

/

th SR.

Qj\\

rt en f unplan d event that sa sfy W4 4

_t.....

Verify each battery charger supplies 2($4007 amps at 2@l25@ V for g- @

(Q month L fm:s4Q (jp The, icodi fied perfo$)------------------

@b SR 3.8.4.7

NOTE rmance discharge

,9. 7.12.d. l) test in SR 3.8.4.8 may be performed in lieu of the service test in SR 3.8.4.7.

g once per 60 months.

d n 1

J (hogever, (redit. gay bestaKen N[r (unpTipned events that sttisfy th{s S]Ry TGIF %

Verify battery capacity is adequate to monthsQ supply, and maintain in OPERABLE status, the required emergency loads for the design M

l duty cycle when subjected to a battery service test.

(continued) 4 w

i CEOG STS 3.8-27 Rev 1, 04/07/95 A

DC Sources-Operating 3.8.4 g

-SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY T7hfSIr[eii5ces Iotbe fo

~

/

MODE 1,/2, 3 or 4.

5we r, credi may (4,9.'2,3.24 a n 11 events hat sati i -

TsTp _ g I..

h Verify battery capacity is 1(80$; of the 60 months manufacturer's rating when subjected to a performance discharge test or a modified M

performance discharge test.

12-months when battery shows degradation or has reached

$85dX of the i

expected life

.with capacity

< 100% of manufacturer's rating M

24 months when battery has reachedf]8!#%_

l of the expected life with capacity 2 100% of manufacturer's rating CEOG STS 3.8-28 Rev 1, 04/07/95

DC Sources-Shutdown 3.8.5 (crs >

3.8 ELECTRICAL POWER SYSTEMS

+

3.8.5 DC Sources-Shutdown

/1h rg.inJ d*pu}s #jg,,,g g

LCO 3.8.5

DC electrical enwerAuoushjk shall be OPERABLE to support the DC electrical power distribution subsystem (s) required -

- 32.2.4 by LCO 3.8.10, ' Distribution Systems-Shutdown."

APPLICABILITY:

MODES 5 and 6, g

During movement of irradiated fuel assemblies.

i, N l.W-U - -[' - - - j

~~

~~~

-- - T'T ' b l

Le o d

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME t

A.

One or more recuired A.1 Declare affected imediately 9 7q sgcic g po(er3 required feature (s) 4 mr tnoperable, inoperable.

c6ne 3 QB A.2.1 Suspend CORE 1 mediately ALTERATIONS.

bHQ A.2.2 Suspend movement of Imediately irradiated fuel assemblies.

6ED A.2.3 Initiate action to Imedir.tely suspend operations involving positive reactivity additions, bh3 (c'ontinued)

.s l

CEOG STS 3.8-29 Rev 1, 04/07/95

~

DC Sources-Shutdown -

3.8.5 C.T5[

ACTIONS

^

i CONDITION REQUIRED ACTION.

COMPLETION TIME

_A.

(continued)

A.2.4 Initiate action to lunediately 3,'g'7'4 restore required DC electrical power Acwh subsyst2ms to OPERA 8LE status.

l SURVEILLANCE REQUIREMENTS S'JRVEILLANCE -

FREQUENCY

.s SR 3.8.5.1

NOTE------------------.

-/ -

The following SRs are not required to be S N 7-(f performed: SR 3.8.4.6, SR 3.8.4.7, and SR 3.8.4.8.

~3 for DC sources required to be OPERABLE, the in accordance

following SRs are applicable

with applicable SRs SR 3.8.4.1

- SR 3.8.4.4-SR 3.8.4.7 SR 3.8.4.2 SR 3.8.4.5 SR 3.8.4.8.

SR 3.8.4.3 SR 3.8.4.6

~

i CEOG STS 3.8-30' Rev 1, 04/07/95

\\

__J

Battery Cell Parameters 3.8.6 (CTS) 3.8' ELECTRICAL POWER SYSTEMS 3.8.6 Battery tell Parameters LCO 3.8.6 Battery cell parameters for thedrAn Xad'Tra% ID C2.

3,g,7,3 batteries shall be within the limits of Table 3.8.6-1.

g e

sk:

3.t.2.4 u,y~c e nts. ~ L& <ted.lp ~hp.d. e G h

b. tk ;< s ave,.

~

APPLICABILITY:

hen associIled DC electrical (6wtfr,>0bsysted)are required to be OPERABLE.

Ar,TIONS

....................------------------NOTE-------------------------------------

Separate Condition entry is allowed for each battery.

.................. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ ~ - - - - - - - - - - - - - - - - -

4 CONDITION REQUIRED ACTION COMPLETION TIME i

l O

A..

One or more batteries A.1 Ve ify ilot cell I hour electro yte level)and N'O with one or more SS.b b'attery cell float voltag meet bot L.

parameters not within Table 3.8.6-CW Category A or B Category 0 limits.

?-

limits.

,,. 9) i

$.,h\\

A.2 Verify battery cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months parameters meet Table 3.8.6-1 AtiD Category C limits.

Once per 7 days 6tiQ thereafter A.3 Restore battery cell 31 days parameters to Category A and B limits of Table 3.8.6-1.

(continued) b CEOG STS 3,0-31 Rev 1, 04/07/95

1 l

i Battery Cell Parameters 3.8.6-ACTIONS '(continued)

~

CONDITION REQUIRED ACTION COMPLET!ON TIME B..-Required' Action and 8.1 Declare associated Immediately associated Completion-battery inoperable.-

ga 33,c Time of Condition A x t,i not met..

2 One or more batteries with average 1

electrolyte temperature of the reprisentative cells

'F.

49 E

One or more batteries

.with one or more l

battery cell parameters not within Category C S TiiPb 4)?.

\\

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR' 3.8.6.1 Verify battery cell parameters meet 7 days k

<dM.t.3.2.a Table 3.8.6-1 Category A lbits, (continued)

I o

CEOG STS.

3.8-32 Rev 1, 04/07/95 1

-7:

4

=

r Battery cell Parameters CTS f

SURVElllANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY _-

t

. SR : 3.8.6.2' Verify battery cell parameters meet.

92 days

[

N Table 3.8.6-1 Category B limits.

? 7.5.2.b[

TMD

]

f ce wi in 4-ho s after batt y-di harge h

110) V MQ On withi 1

hours-ter battery overc rge

/

((1 )V /j SR.3.8.6.3 Verify average electrolyte tempt ature of 92 days k

3t representative cells is 2 l-i l

h i-l CEOG STS

.t.e3 Rev 1.-04/07/95 l

y

+

e

,-_y~,....,

Battery Cell f arameters 3.8.6

{

l Table 3.8.6-1 (page 1 of 1)

Battery Surveillance Requirements CATEGORY'A:

CATEGORY C:

LIMITS FOR EACH CATEGORY B:

fligA ABIMITS 0

DESIGNATED PILOT LIMITS FOR EACH FOR EACH PARAMETER CELL CONNECTED CELL CONNECTED CELL Electrolyte Level

> Minimum level

> Minimum level Above top of indication mark, indication mark, plates, and not and s 4 inch and s t inch overflowing above maximum above maximum leveljndication leveljndication marktai

markta, h Vsata_B) 2 2'.13 V 2 2,13 V

> 2.

Specifig )(c) 2(i.20$

2($1.195D Not more than

{

Gravitytb 0.020 below fje average Am.

of di connected cells weh.tI<& cAls

>._ l. 2o5 Average of all connected cells 2(p.1953)

(a) It is acceptable for the electrolyte level to temporarily increase above the specified maximum during equalizing charges provided it is not overflowing.

(b) Corrected for electrolyte temperature and level. Level correction is not required, however, when battery charging,is <

- amps when on float charge.

\\

l;g I

,y,,;, g

'(c) A battery charging current of <

s when on float charge is acceptable for meeting specific gravity limits following a battery recharge, for a maximum ofQgg) days. When charging current is used to satisfy specific gravity requirements, specific gravity of each connected cell shall be measured prior to expiration of the FOday allowance.

J CEOG STS 3.8-34 Rev 1, 04/07/95

DISCUSSION OF TECilNICAL SPECIFICATION DEVIATIONS FROM NUREGo1432 SECTION 3.8 - ELECTRICAL POWER SYSTEMS PLANTJECIFIC CIIANGES 1.

These changes incorporate Calvert Cliffs specific information into brackets.

Bracketed information located throughout NUREG 1432 will be replaced with the specific Calvert Cliffs requirements. This change also includes deleting bracketed items when it is not consistent with the Calvert Cliffs design.

2.

The change to the non-bracketed system name, number of systems / components, terminology, or value was changed to be consistent with Calvert Cliffs-specific system name, number of systems / components, terminology, or values. This change also includes any numbering changes due to the addition or deletion of Specifications, Actions, or Surveillance Requirements (SRs).

3.

A Limiting Condition for Operation (LCO) requirement (3.8.1.c) was added to the AC Sources-Operating Specification (3.8.1) requiring an Diesel Generator (DG) from the other umt capable of supplying power to the Control Room Emergency Ventilation System, the Control Room Emergency Temperature Systems, and H Analyzer. This LCO requirement was added because 2

the Control Room Emergency Ventilation System, the Control Room Emergency Temperature l

Systems, and 11 Analyzers are shared systems, and one train of each requires emergency power 2

l from different units. In conjunction with this change, Action C, SR 3.8.1.17, and an SR Note i

were added to Improved Technical Specifict. tion (ITS)3.8.1. These added requirements will l

ensure that power is available to these systems, as required. Also, the specific LCO requirement l

number (e.g.,3.8.1.b DG) was added to clarify whenever a DG was referenced. 'Ihis was added l

to ensure that for each Action, there is no confusion as to which DG it applies.

4.

Calvert Cliffs ITS will add an SR (SR 3.8.1.1) which does not exist in NUREG 1432 Specification 3.8.1.

The SR will verify correct breaker alignment and indicated power availability for the 69 kV Southern Maryland Electric Cooperative (SMECO) offsite circuit once within one hour afler substitution for a 500 kV offsite circuit, and every eight hours. This SR is only required to be performed when SMECO is being credited for an offsite source as modified by a Note. This SR ensures that SMECO is properly lined up when replacing a 500 kV circuit.

This deviation also includes the addition of this SR to requirements in Actions to verify proper offsite circuit alignment. This change is consistent with Calvert Cliffs current licensing basis.

5.

NUREG-1432 SR 3.8.1.3 contains a Note (Note 1) which allows gradual loading as recommended by the manufacturer during the 60 minute DG run. Calvert Cliffs ITS will not include this Note. Calvert Cliffs is not able to gradually load the DG because gradual loading is not consistent with the DG design. This change is consistent with Calvert ClirTs' current licensing basis.

6.

NUREG-1432 SRs 3.8.1.7,3.8.1.9, and 3.8.1.19 (Calvert Cliffs ITS SRs 3.8.1.9, 3.8.1.13, and 3.8.1.16, respectively) require certain parameters (i.e., voltage and Frequency) to be within a certain limit during the SR. Calvert Cliffs comparable SRs will not require these parameters to be verified as part of the SR acceptance criteria. These parameters are verified every 31 days with the monthly Operability test, and verified for the monthly-Operability test when the quarterly fast start test (SR 3.8.1.7) is credited for the monthly Operability test. Therefore, although not specifically required as part of the SR, the parameters are verified. This change is consistent with Calvert Cliffs' current licensing basis.

CALVERT CLIFFS - UNITS 1 & 2 3.8-1 Revision 3

DISCUSSION OF TECilNICAL SPECIFICATION DEVIATIONS FROM NUREG-1432 SECTION 3.8 - ELECTRICAL POMR SYSTEMS 7.

The bracketed LCO 3.8.1.c and Action F were deleted from Specification 3.8.1.

These requirements are not required for the load sequencer if its design is such that any sequencer failure mode will only affect the ability of the associated DG to power its respective safety loads, following a loss-of offsite power, independent of a design basis event. The requirement for deletion is stated in a Note to Action F. The Calvert Cliffs Imd sequencer does not sequence on loads unless there is a loss ofoffsite power.

8.

The Frequency for SRs 3.8.1.3 and 3.8.l.4 was changed from,"As specified in Table 3.8.1.1," to 31 days. Table 3.8.1.1 is the Diesel Generator Test Schedule in NUREG-1432. It provides the test schedule based on the number of failures in the last 25 valid tests. This Table will not be incorporated into Calvert Cliffs ITS. A similar table uas recommended by Generic Letter 8415.

The Calvert Cliffs response to Generic Letter 84-15 was forwarded to the NRC on September 26,1984. The response discussed the Calvert Cliffs DG reliability trending program, and concluded that the accelerated testing required by the example test schedule will degrade, rather than enhance, safety. This was based on the extent of reliability trending in the Calvert Cliffs program. The program is adequate to detect DG potential problems in order to take corrective actions. This was reiterated in the Calvert Cliffs Technical Specification change submittal, dated October 12, 1984, which adopted some of the Generic Letter 84-15 recommendations. The NRC issued an Amendment approving the Calvert Cliffs submittal on December 31,1985. Therefore, consistent with the Calvert Cliffs current licensing basis, the Frequency for SRs 3.8.1.3 and 3.8.1.4 will remain at 31 days, and the DG test schedule will not be incorporated. This change is consistent with NUREG-1432, Generic Change 1STF.,7.

9.

Two SRs were added to Specification 3.8.1: (1) SR 3.8.1.11 verifies each DG operates for 2 60 minutcs while loaded; and (2) SR 3.8.1.12 verifies that auto-connected loads to each DG do not exceed the design basis assumptions. Calvert Cliffs will adopt current SRs which are performed to determine the Operability of the AC Sources. The addition of these SRs is consistent with the Calvert Cliffs current licensing basis.

10.

Five SRs were deleted from Specification 3.8.1: (1) SR 3.8.1.10 verifies each DG, operating at a certain power factor, does not trip, and voltage is maintained during and following a load rejection; (2) SR 3.8.1.11 verifies operation on an actual or simulated loss-of offsite power signal; (3) SR 3.8.1.14 verifies each DG, operating at a certain power factor, operates for 2 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ; (4) SR 3.8.1.15 verifies each DG starts and achieves, in the proper voltage and frequency, in s 10 seconds;(5) SR 3.8.1.20 verifies when the DGs are started simultaneously so that the correct voltage and frequency are attained. These SRs will not be included in the Calvert Cliffs ITS because Calvert Cliffs' current testing is comprehensive and adequate to test the DGs' reliability. The 10-year simultaneous DG start test is a common mode failure test which is not applicable for the Unit 1 DGs, since the two Unit i DGs are different, and is not currently performed on the Unit 2 DGs (which are the same), because the Calvert Cliffs DG reliability program is capable of identifying any potential common mode failure problems, This change is

onsistent with the Calvert Cliffs current licensing basis, 11.

NUREG-1432 SR 3.8.1.16 verifies that each DG synchronizes with an offsite power source while loaded with emergency loads upon a simulated restoration of offsite power; transfers loads to the offsite power source; and retums to ready-to-load operation. Calvert Cliffs ITS SR 3.8.1.15 verifies that each DG synchronizes with an offsite power source while loaded with emergency loads upon a simulated restoration of offsite power, and the load (s) can be transferred to the offsite power source. The Calvert Cliffs ITS will not contain the requirement for the DG CALVERT CLIFFS - UNITS 1 & 2 3.8-2 Revision 3

DISCUSSION OF TECIINICAL SPECIFICATION DEVIATIONS FROM NUREG-1432 SECTION' 3.8 - ELECTRICAL POWER SYSTEMS to return to ready-to-load operation, and also will be clarined that the loads can be transferred to the offsite power source. Calvert Cliffs system does not return to ready to-load, and the loads have to be manually transferred to the offsite power source. This test is not currently a Technical Specification SR at Calvert Cliffs, but was added because it is currently performed outside of the l

Technical Specifications. This change is consistent whh Calvert Cliffs current licensing basis.

12.

NUREG-1432 Speci0 cation 3.8.3 contains an LCO, Actions, and SRs for fuel oil storage, lubricating oil and starting air for the DGs. Calvert Cliffs ITS 3.8.3 will not contain requirements for lubricating oil and starting air. Calvert Cliffs' starting air system is a very diverse system for three of the four DGs, because any air start receiver can feed any DG through a common header. This system is unlike the standard in that one air start receiver does not feed one DG (except for the l A DG), therefore, it does not St the standard and will not be incorporated into the Calvert Cliffs ITS. The lubrication oil requirements at Calven Cliffs are sufficient to ensure that enough oil is present onsite to provide oil to the DG until more can be obtained. A lubricating oil consumption rate does not exist for three of the Calvert Cliffs DG (except for the 1 A DG), therefore, providing a specific number for lubricating oil is not feasible.

Therefore, consistent with current licensing basis, Calvert Cliffs will not add Specifications for starting air and lubricating oil to the Calvert Cliffs ITS.

13, The specific values listed in Specification 3.8.3 Actions were moved to the SRs and replac:d with generic terminology (e.g., one or more DGs with fuel level in its associated storage tank not within limit). Since Calvert Cliffs has two fuel oil storage tanks which can supply three of the four DGs, the listing of each individual storage tank volume in the Actions would become cumbersome. To account for the requirement that at least six days supply of fuel oil remain, a Note was added to Action A. The Note requires Action D to be entered immediately if the fuel oil storage system drops below the capacity to operate one unit on accident loads and one unit on shutdown loads for less than six days. A condition was added to Action D to reflect the added A.1 Note. Similar Specifications in NUREG-1432 list values in the SRs, as in the Calvert Cliffs ITS. The SRs are where the specific values are verified, and the Actions are entered when the specific values are not within limits. Action A is not in the Calvert Cliffs CTS and is consistent

.vith the intent, but not the presentation of the NUREG-1432 Action.

14.

An Action.was added to Specification 3.8.4.

The Action allows four hours to replace an inoperable battery with the reserve battery. These changes are consistent with the Calvert Cliffs current licensing basis, as approved in Amendment Nos. 58 (Unit 1) and 40 (Unit 2), and discussed in the NRC Safety Evaluation Report dated November 2,1981. In conjunction with this change, the phrase, "other than Condition A," was added to Condition B (NUREG-1432 Condition A) to account for other reasons the DC electrical power channel may be inoperable.

15.

The Mode restrictions presented as Notes in the SRs of Specification 3.8.4 are being deleted.

Calvert Cliffs has a reserve battery and two battery chargers per battery. This enables Calvert Cliffs to perform Surveillances while in Modes 1-4. This change is consistent with current Calvert Cliffs practice and licensing basis.

16.

All Reviewers Notes will be deleted. These Notes are for the NRC reviewers and are not intended to be included in the specific plants' ITS.

17.

Not used.

l CALVERT CLIFFS - UNITS 1 & 2 3.8-3 Revision 3

DISCUSSION OF TECHNICAL SPECIFICATION DEVIATIONS FROM NUREG-1432 j

SECTION 3.8 - ELECTRICAL POWER SYSTEMS 18.

NUREG-1432 contains a Note which requires SR 3.8.1.3, DG monthly Operability test, to be conducted on only one DG at a time. Calvert Cliffs ITS SR 3.8.1.4, DG monthly Operability test, will not contain this Note. Although Calvert Cliffs' curant practice is to perform the SR on only one DG at a time, Calvert Clifts does not currently cor.tain a requirement prohibiting the i

testing of both DGs at one time, and reserves the right to do so. This would also allow Calvert Cliffs to credit the test if both DGs were inadvertently started simultaneously or within one hour of one another. This change is consistent with current licensing basis.

19.

Not used.

l 20.

NUREG-1432 SR 3.8.1.16 (verification that ca.h DG synchronizes with ofTsite power, transfers load, and returns tc steady state) and SR 3.8.1.19 (Engineered Safety Feature / loss-of-offsite power DG test)(Calvert Cliffs ITS SRs 3.8.1.15 and 3.8.1.16, respectively) contain a Note which prevents the SRs from being performed in Modes 1,2,3, and 4. Calvert Cliffs ITS will not contain this Note. Calvert Cliffs does not currently contain a requirement prohibiting these tests I

in Modes 1,2,3, and 4, and reserves the right to do so. This change is consistent with Calvert Cliffs' current licensing basis.

l 21.

NUREG-1432 SR 3.8.1.13 requires the verification that each DG non-critical automatic trip is bypassed on an actual or simulated signal. Calvert Cliffs ITS SR 3.8.1.14 will verify that I

automatically bypassed DG trips are automatically bypassed on an actual or simulated required i

actuation signa'. Caivent Cliffs verifies that the bypassed trip signals are bypassed, not that the non-bvpassed trip signals are not bypassed. In addition, the Calvert Cliffs CTS and ITS do not specify the bypassed trip signals, because they vary between the DGs. The bypassed trips are

{

identified in the Updated Final Safety Analysis Report. This change is consistent with the l

current Calvert Cliffs SRs and licensing basis.

22.

NUREG-1432 SR 3.8.3.5, " Diesel Fuel Oil" contains a bracketed frequency of 31 days to check for and remove accumulated water from each fuel oil storage Tank. There is no existing CTS requirement to perform this Surveillance. NUREG 1.137 recommends this test be performed quarterly for above ground tanks, as the tanks at Calvert Cliffs are.

23.

Not used.

l 24.

NUREG-1432 SR 3.8.4.2, "DC Sources Operating," is a requirement to verify each battery charger supplies 2 400 amps at 2125 Volt for a bracketed time of 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . The time is not contained in the CTS. However consistent with current practice and vendor recommendatien, each battery charger is required to supply current for 30 minutes during this test, This change heorporates current Calvert Cliffs requirements into bracketed information.

25-37. Not used.

l 38.

The bracketed values of resistance specified in NUREG-1432 SR 3.8.4.2 and SR 3.8.4.5 are vendor recommended values; that is, values at which some action should be taken, not necessarily when the OPERABILITY of the battery is in question. In addition. the safety analyses do not assume a specific battery resistance value, but typically assume the batteries will supply adequate power.

CALVERT CLIFFS - UNITS I & 2 3.8-4 Revision 3

DISCUSSION OF TECIINICAL SPECIFICATION DEVIATIONS FROM NUREG-1432 i

SECTION 3.8 - ELECTRICAL POWER SYSTEMS Connection resistance is determined by the contact resistance between the connector and battery post, as well as the material, shape, and length of the connector bar/ cable. Contact resistance is affected by the irregularity of contact surfaces, the level of corrosion between contact surfaces, and the tightness of the connection. The type of connection is determined by the location of the connection (inter-cell, inter-tier, and inter rack) and is churacterized by connectors varying in shape and length. The allowa' ole resistance range for each type of conrection is different for a particular battery. Since batteries of different sizes may require connectors of different sizes and lengths, connection resistance is often different from one battery to another.

A single OPERABILITY resistance value for each battery connection type is not practical. The key issue is the overall battery resistance.

The resistance of each connection varies independently from all the others. Some of these connection resistances may be higher or lower than others, and the battery may still be able to perform its function and should not be considered inoperable.

Calvert Cliffs ITS SR 3.8.4.2 requires verification that no visible corrosion at battery terminals and connectors exist or verification that the connection resistances are within limits and Calvert Cliffs ITS SR 3.8.4.5 requires verification that the battery connection resistance is within limits.

These battery connection resistance limits are specified in the ITS Bases for these Surveillances.

This allows appropriate battery resistance values to be specified and the levels at which action will be taken: 1) if the manufacturer recommended values are exceeded, and 2)when the OPERABILITY of a battery is questioned, in addition, this change is consistent with the Calvert Cliffs current licensing basis since the CTS do not contain battery resistance values.

39.

The bracketed 12 month Surveillance Frequencies specified in NUREG-1432 SR 3.8.4.3 and SR 3.8.4.4 are revised to reflect the Calvert Cliffs current licensing basis reflected in CTS 4.8.2.3.2.c.1 and 4.8.2.3.2.c.2 (i.e.,18 month Surveillance Frequencies). Plant operating experience has shown that the 18 month Surveillance Frequencies for these Surveillances are adequate for maintaining battery OPERABILITY.

In addition, the bracketed 12 month Surveillance Frequency specified in NUREG-1432 SR 3.8.4.5 (which is not included in the CTS and is added as a result of the conversion to ITS) is revised to 18 months for consistency with the changes made to SR 3.8.4.3 and SR 3.8.4.4.

40.

Average electrolyte temperature of the battery cells supports OPERABILITY of the DC electrical source channels as reflected in NUREG-1432 Specification 3.8.6 Condition B (second Condition) and SR 3.8.6.3. The LCO for NUREG-1432 Specification 3.8.6 states that battery cell parameters shall be within the limits of Table 3.8.6-1.

However, average electrolyte temperature is not included in this Table. Therefore, to be consistent with the ISTS format, the requirement to maintain battery cell average electrolyte temperature within the required limit is added to the LCO statement of Calvert Cliffs ITS 3.8.6 (NUREG-1432 Specification 3.8.6),

41.

The word " values" in the third Condition of NUREG-1432 Specification 3.8.6 Condition B is changed to " limits" to more closely match the LCO description. in addition, the word

" Allowable" in NUREG-1432 Table 3.8.6-1 is deleted in Calvert Cliffs ITS Table 3.8.6-1 to be consistent with the manner in which Category C " Limits" are described in the ACTIONS. This also avoids confusion with the term " Allowable Value" used in the Instrumentation Section (Calvert ClitTs ITS Section 3.3).

l CALVERT CLIFFS - UNITS 1 & 2 3.8-5 Revision 3

DISCUSSION OF TECIINICAL SPECIFICATION DEVIATIONS FROM NUREG 1432 SECTION 3.8 o ELECTRICAL POWER SYSTEMS 42.

He one time frequency requirements of NUREG 1432 SR 3.8.6.2 associated with a severe I battery discharge or overcharge are not included in the Calvert Cliffs ITS. This change is consistent with Calvert Cliffs current licensing basis reDected in CTS 4.8.2.3.2.b.

43.

NUREG 1432 Table 3.8.61 only includes one Category B limit for specific gravity (2 (1.195]).

Calvert Cliffs ITS Table 3.8.61 is revised to include an additional Category 9 limitation for battery cell specific gravity. Calvert Cliffs ITS Table 3.8.6-1 Category B limits for specific gravity are h 1.195 "AND Average of all connected cells 21.205." This additional limitation is consistent with the battery manufacturer's recommendations.

44.

The words "and following" are added to Footnote (a) of NUREG 1432 Table 3.8.6-1 to allow the electrolyte level to be temporarily above the limit following the equalize charge as well as during the charge. As reflected in the NUREG-1432 Bases for this footnote (in Table 3.8.61 description), IEEE-450 recommends that electrolyte level readings not be taken until 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months after the equalize charge. His allows time for the electrolyte temperature to stabilize and the level reading to be a "true" readir.g. Without the added words, the limit may not be met upon completion of the charge and unnecessary ACTIONS would have to be taken.

CALVERT CLilFS - UNITS 1 & 2 3.8-6 Revision 3

i...

a.

DC Sources-Operating B 3.8.4 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.4 DC Sources-Operating BASES

_ ~

fSanes)

BACKGROUND The station DC (TedrVal wfwerAvsteit provide @ the AC emergency power system with control power. It also p'*ovides l

l h_

both motive and control power to selected safety related l

_%6tQ equipment and preferred AC vital bus oower (via inverters).

,A As required bf GD MR tr Anmendi/A. GDC T) (Ref.1), the l

g,,,, u DC electrical oowerdisterTs3 designed to have sufficient G

g ndependence, redundancy, and testability to perform g,,

safety functions. attuming a single failure. The DC

'8 "Intt**""" e_+niD also conform @ to the recommendations suco ofgeggf a.HryAuide'gD(Ref.'2) and IEEE-308 (Ref. 3).

f.

A Gnq Co.t -

The $2'5@ VDC electrical powe(,

te' consist &bf l

inder encellI and re un aritMfety re a e Class IE DC ch. %ts Xtrxai sowerAubsvntemypfain K and'TraiYB1). Each 6WtEDb consists of M 325 VDC batterW5irawpawers it

( 6"ad d5F6; woacRyn, the associated battery chaffer @ for each i

battery, and a'i' the associated control equipment and interconnecting cabling.

/e The O VDC source is obtained by use of the t o 125 VDC

(

ba eries co ected in ries. Ad tionally ereis(one]

are batte charger er subsyst, which p ovides backup service i t e evcat hat the or ferred bat ery charger }

out of s vice. If he spare ttery char er is substi ted for one of the pr erred batt/ry charger, then the requi ments of dependentv and redund cy between subs stems are maintained, y

During normal operation, the(02505D VDC load is powered from the battery chargers with theTatteries floating on the system.7 rcase 4 loss of normal power to the battery n ris, a oh.<< ~~ A char er, tie DC load is automatically powered from the g

I tc..I stat on batteries.

[ d m,,,.

The F n A4nd Tr1iin B.) DC 61erAficat cowbrAtibsvateB provi e he control power for its associated Class 1E AC

\\ c.p a.n.Q',, g power load group,016QV switchgear, and(pB0QL load 4

(-

centers. The DC ( g J m r m ye w also provide *DC sTeetMtal +owetto the inverters, 'which in turn power the AC vital buses.\\

(continued)

CEOG STS B 3.8-50 Rev 1, 04/07/95 A

,s DC Sources-Operating B 3.8.4 BASES

,[saanes-vt)

BACKGROUND The DC Ewfr dXtribatinvcvetaw'u described in more detail (continued) in the Bases for LCO 3.8.9, Distributions System Operating," and for LCO 3.8.10, ' Distribution Systems-Shutdown."

Each battery has adequate storage capacity to carry the required load continuously for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and to

. ernra enreedomplets' cyclac of istierstrient enad_O

- emk.

discussed in the R, Chapter ({BO(Ref. 4).

4, u

ventilat@ed room apart from its charger and distribution @

Each 125 VDC battery is separately housed in a

- centers. EachNNUswtes is Oscater inan acel separated physically and electrically from the other' ensure that a single failure in one subsystem does not cause a failure in a redundant subsystem. There is no sharing between redundant Class 1E svowstems, such as batteries, battery chargers, or distribution {p g

The batteries for TrgiryA a.wd TrainJDC nset.rtcaMo 4b I

c 6 J3 RUsvateam are size'dTo produce required capacity at 80% of i

nameplate rating, corresponding to warranted capacity at end of life cycles and the 100% design demand. Batterv W a is 4'

based on 125% of required capacit1/apo, aite select n of (in ay411ab)e commefctal D tery, rosults i bat y

(can(city 4n excess of I of regal red ca city @p 3o b *"'g$)r VoMagM mR in z.u v per cell, which corresponds to a gI "D*P,

total m3n-mum voltace outeut of 6fm v per batteryediscussed n thfpfSAR, Chapter (thl)(Ref 4). The criteria for sizing g

y{ q large read storage batteries are defin'ed in IEEE-485 g

(Ref.5).

WW,3 ) %

r u.,u.

Each ErfinA ant Tra4fiD DC Elmricaroowe subsystem has ample power output capacity for the steady state operation of connected loads required during normal operation, while at the same time maintaining its battery bank fully charged.

Each battery charger also has sufficient capacity to restore m of Inc bauery fium 1.he oesign minimum insge Units fully charged state within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months while supplying normal steady Chapter 19BD(Ref. 4).

state loads discussed in the DSAR APPLICABLE The'init'i.: conditions of esign Basis Accident (DBA) and SAFETY ANALYSES transient alyses in the4FSAR, Chapter $60 Ref. 6) and Chapter (Ref. 7), assume that Engineere Safety Feature (continued) s CEOG STS B 3.8-51 Rev 1, 04/07/95 l

g

,)

=

y-a. * -

w w

ate T

DC Sources-Operating B 3,8,4

,3 BASES y

M* kid

(

APPLICABLE (ESF) sys em are OPERABLE. The DC Ge'ctried pnar @stAh SAFETY ANALYSES provid normal and emergency DC tractrvai newee for the (continued)

DGs,emergencyauxiliaries,andcontroland/swtchingduring all H0 DES of operation.

Tre e.

The OPERABILITY of the DC sources is consistent with the initial assumptions of the accident analyses and is besed upon meeting the design basis of the unit. This includes maintaining the DC sources OPERABLE during accident conditions in the event of:

a, An assumed loss of all offsite AC power or all onsite AC power; and b.

A worst case single' failure.

l The DC sources satisfy Criterion 3 of the NRC Policy Statement, n_

B u. pk.~ t3) 6'ie 4.f LCS The DC dhR'tPTFU gggD hye each diiibulitenD consistin o batteri at ery charger dTEF7aE9 h

(@Ce7y) g of

~

e and the corresponding control equipment and intercTnnecting cabling supplying power to the associated bus nnuin rna arm re required to be OPERABLE to ensure 30 the availability o e required power to shut down the reactor and maintain it in a safe condition after an anticipated operational occurrence (A00) or a postul Qg DBA. Loss of any ccGia)DC auctrwai mwer scosvn oes not prevent the minimum safety function from being performed cs;4ve2 c6 M

g is A w4e Of

%L 's An OPERABLE DC etatruraiewa-ohr,vstinri requires GT

,4 u ne*M frecutreib batter nd e m n n e chargerO to be oper_ating_

hsA A *Mg i 6

and connected to t e associated oc buges), ge ofe(se_

@A;7.ws66Lidt Tin 4

.) @

LICABILITY The DC Ntvrcal sowaB sources are required to be OPERABLE

~ '

in H0 DES 1, 2, 3, and 4 to ensure safe unit operation and to ensure that:

a.

Acceptable fuel design limits and reactor coolant pressure boundary limits are not exceeded as a result

-of A00s or abnormal transients; and (continued)

CEOG STS-B 3.8-52 Rev 1, 04/07/95

I DC Sources-Dperating 8 3.8.4 BA$t$

AFPLICABILITY b.

Adequate core tooling is provided, and containment (continued) integrit and other vital func of a postulated D8K.tions are saintained in the av n The DC eL82. ; ar requirements for MODI $ $ and 6 are h

addressed in the Bases for LC0 3.8.5, 'DC Sources-Shutdown.'

4-V.-p ACTIMS h

g,,,,g g

Condition represents one with a loss of abtitty to complete 1 respond to an evenir and a potential loss of.

ability to remain energized during normal operation. it is therefore, imperative that the operator's attention focus on stabilizing the unit minietting the potential for complete loss of DC power to lhe affected The I hour iteit is consistent with the allowed it or n inoperable DC distributton system tM4 h g t

If onfof the requt:wd DC d;;L M; ?._:. 02:.t.:: is e

fu re.o.o r 4 inop bl (e.g., inoperable battery inoperable battery inop rab1, battery $erable httery ch,rger and associated cnar or ino a

(b C.JA,.. A

. the remaining DC.u;;;h:1 ;:2 has the capacity to su th mitigate an accident condition. pport a safe shutdown and to Since a subseovent worst u

case sTolle rauure.would. howevert' result in the*

Jert]

gphwiisiwT t.

endant loss of ESF funchons, co_ntinued{eu.

g ioss pf hi fi rcm m tR?l t 5 VDC _ "' * * * ' "

aower operation should not exceed 2 hodrs. The I hout Completion Time is based on Regulatory Guide 1.93 (Ref. 8) and reflects a reasonable time to assess unit status as a C(^^A ht function of the inoperable DC *Wtrud

r-and if the DC th;ts' el e.-, - H. tW no ~res~tored to

~

DPEhBLE status, to prepare to effect an orderly and safe J

unit shutdown.

.1 an f

)

If the inoperable DC 69' r^-e cannot be restored to DPERABLE status within the required Completion Time, the unit must be brought to a MODE in which the LCD does not app 1;least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5To achieve this status, th brought to at (continued) i CEDG STS 8 3.8-53 Rev1.04/07/95 t

INSERT B 3.8.4 ACTIONai4 M

Required Aadon A.1 requires the inoperable battery to be replaced by the reserve battery within four hours when one DC channel is inoperable due to an inoperable battery and the reecew battery is available.1he reserve battery is a qualified battery that can replace and perform the required ihnotion of any inoperable battery. The four hour Compledon Tise is noceptable based on the capability of the reserve battery and the time it takes to replaec the inoperable battery with the reserve battery while minimizing the time in this degraded condition.

f

\\

l

)

e e

4 4

4

..s.

oc sonces-Operating B 3.8.4 4

BASES ACTIONS and (continued)

- within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are-reasonable, based on operating experience, to reach tne renutred unit conditions from full power conditions in an orderly manner and without challenging unit systees. The Completion Time to brino the unit.to MODE 5 is consistent with the time required in Regulatory Guide 1.93 (Ref. 8).

SURVEILLANCE

$R 3.8.4.1 l

REQUIREMENTS d.p,tftina battery terminal voltage while on float charge @. hD V

e lat(erten helps to ensure the effectiveness of the I

ciarging system and the ability of the batteries to perform l

their intended function. Float charge is the condition in Co "

4',(

wnR n tire cnarger is supplyingsthe continuous charge

]

lod "d requiredtoovercometheinternallossesof.abattery(or battery cell) and maintain the battery (or a battery cell)

I m

in a fully charged state. The voltage requirements are (2.1% V tv aseRirine norninal design voi of the pattery&and are c,g u,<*

c )

consisten'. wtthsthe initial.

assumed in the battery stzing calcutations. The 7 day requency is MsMten with brI manufacturer recomendatien(js and IEEE-450 (Ref. 9). '\\

r a.J I # t h f* " '

SR 3.8.4.2 1

Visual inspection to detect corrosion of the battery cells and connections. or measurement of the resistance of each g 4" "g

~ orerceLK intefrackMnterX1 era and terminal connection.

l provides an indication of physical damage or abnormal deterioration that could potentially degrade battery performance.

The limits established for this SR must be no more than 20%

above the resistance as measured during installation or not above the ceiling value established by the manufacturer.

The Surveillance Frequen:y for these inspections, which can detect conditions that can cause power losses due tb resistance heating, is 92 days. This Fnquency is considered acceptable based on operating experience related to detecting corrosion trends.

w (continued)

CEOG STS-B 3.8-54 Rev 1, 04/07/95

. m

$1< <.mli.%

% peu.u. / pl.,.l ' b) er

(

h e. *'

thes nd necess...

rep,<5e evale % dek'

5 DC Sources-0peratink

%s t r, pc,. et. f

c. s dek"* b g 3,e,

-t L4 pp;,.l c6 7 u

kas

~4 dr<a UWssuT1 o'

I h

I

(

BASES

/

4.

SURVEllLANCE

$R 3.8.4.3 I

l REQUIREMENTS Visual inspection of the battery cells, cell plates, and

'(continued) f battery racks provides an indication of physical damage or l

abnormal deterioration that could potentially degrade

( battery performance.

k""'h F'12~~hthFr ency fo his SR onsiste with f detalle isual r

De i5 EE-S Re

, whi recommen in ection c 1 e idition and rack int rity on yearly / j

) g,

(%,y,,.9u,,.h*'*)(__ S i lf

/

d. u-

, ~,.

' ,, [ c,'

IB 3.8.4.4 and SR 3J8.4.5 5

o t[ 6. el dr...h fr g....y.

Cfmryck Antertiec and terminal connections provide an uh..

Visual inspection and resistance measurements ofMerrtGR r,'0

' ndication of physical damage or abnormal deterioration that I 'S"< fv'e,,

T'*

f'")

could indicate degraded battery condition. The I

us

( s elule f /o anticorrosion material is used to help ensure good Le Me epbW 4 electrical connections and to reduce terminal deterioration.

p.

The visual inspection for corrosion is not intended to 3

e

<,1.,. t, a.)

A<l..+

require removal of and inspection under each terminal

%y connection. The removal of visible corrosion is a preventivs maintenance SR. The presence of visible corrosion does not necessarily represent a failure of this SR provided visible corrosion is removed during performance of SR 3.8.4.4.

[ReWwe.r's Note:

he requ (Ent to ve fy that t inal e

ions a clean and ht appl s only to kel 20 ium bat,i ries as pp Sta ard P1106 ' EEE p

ecommenJe3 Practice for Insta tion, Maiptenance, T ng el - Ctdmium Batterie or m a y.A G i.. d.

and Re incement of4 ented Ni isrequiresentmaybefemoved try Applications.'

(Stati c, % m s t.

for lead acid batteries.r m,

g.......

g.- t.

T'"D,{'[ 'E,1 The connection resistance limits for SR 3.8.4.5 shall be no more than 20% above the resistance as measured during 5 *"

t gg i **("*d' ["M installation, or not above the ceiling value established by the manufacturer.

{^ '4, g g g S "A 6'y"'j '

ih'Surveilla e frequencie of 12 month s consistent w (h q

g,,,4,4 '

-W.

1 E-450 (R. 9?, which comends ce to cell and erminal nnection resi ante measur nt on a yearly (T(),f L. k 8

c n,. m x,-

b 'M '^

(continued) t CEOG STS B 3.0-55 Rev 1, 04/07/95 s

l l

DC Sources-Operating i

B 3.8.4 BNSES cD SURVEILLANCE sR 3.8.4.6 h

REQUIREMENTS This SR rehuires that each battery charger be capable of (continued) supplying 00Fampsand l25ip V for i GDouch These 4

requirements are based on@the des gn capactly of the chargers (Ref.4). According to Regulatory Guide 1.32 (Ref.10 the battery charger supply is required to be based on)lhe largest combined demands of the various steady " ~

state londs and the charging capacity to restore the battery

from the design minimum charge state to the fully charged state, irrespective of the status of the unit during-these demand occurrences. The minimum required amperes and

~~

's K duration ensures that these reauirements can be satisfied.j g

l g 4,,4 i

p 4" A

/

I The Surveillance Frequency is acceptable, given the unit u6. ism t W ""'"**

conditions required to perform the test and the_other administrative controls existing to ensure adequate charger or performance during these monttOintervals. In addition,

' }" ',, t, a.<

h6d this Frequency is intende to be consistent with expected A~

_ "_ "~_ ')

fuel cycle lengths.

t t *,

i s SR t-modif14 by a te. 1h reason r the e s S

nee wo pertu the I th erf ng the\\ urvei Q1e ical_

stribut on svit m and ch lance s fetV sy tems.

e tatMr for urunnned eWfits th3&14tisfpfh151g d

SR 3. 8. 4J.

hl g,

' $.IK. 7 t 95 al45 A battery service 'st is a special test of battery i

d'd*

NJE capability ( as foun to satisfy th derign requirements of the DC elRt tLyoweMWh. ] The attery duty cycle)Eength sti5uTdTDYrespuno to the fsch.M) load gt k

%j harge rate and t u

\\ csis,-

des a @ut) cygle, requirements as specified in Reference 4.1

)

I e.vevyr.Mf53'f The Surveillance frequency of Mthspis consistent with 9

4%

of n uinor uice i u psi. 10).nd I

AJ) (c3ch,J

/thekecc-udano Mfu a Gui 1.12 ef.

, whi tate t the u<

intt ser e tes shoul e per-ed dur refuel g i g.,4 g op o, or's ome er out

e. with i ervals betwee i

.'^

Mh"5 Wd'9 kestsnottoaresad_fl monthi r-This'SR is modified by t

@ allows the performance of a modified perf ante discharge test in lieu e} A, of a service test once per 60 months.f I

g (continued)

CEOG STS k-M 8-56 Rev 1, 04/07/g5

% A% is u d 1.1 t< 7.4%

V^0dI9d

-... pedema s, n,<.< / a..,ref.erse.lls dheLw 4td

e. y s-n

-f *

n

u. uM. i,

1

DC Sources-Operating B 3.8.4 8ASES SURVElllANCE SR _3.8.4.7 (continued)

RylRMENTS 94*M'p Mt D/[ simulated duty gcie consistin g or Just two rauss tne one minute rate published for tie battery or the largest current load of the duty cycle, followed by the test rate employed for the erforsanr3 test, both of which envelope the duty cycle of tdy he serJ.6 (N. Since the ampere-hours removed by a rated one minua (Mo9e represents a very small portion of the I

battery ri W ik the test rate can be changed to that for-

/\\

the performance ust without compromising the results of the

[fd,,

performance discharge test. The battery terminal voltage for the modified performance discharge test should remain above the minimum battery terminal voltage specified in the STitTery?%2f'iif& test for the duration of time equal to that g kgm af the test.

I A modified discharge test is a test of the battery capacity and its ability to provide a high rate, short duration load (usually the highest rate of the duty cycle). This will l

often confirm the battery's ability to meet the critical period of the load duty cycle, in addition to determining its percentage of rated capacity. Initial conditions for

,,/

the modified performance discharge test should be identical

, _.w to those ewified for a service test.

ru he el tri b k s

a lence safe"y systems.1 Cr (eve,nts that sa"Asfy tt% 5R.;y may (taken g unp4pseQg,p

$R 3.8.4.8 A battery performance discharge test is a t'est of constant current capacity of a batteryrnofinalk dow in 4he '4b dhadd Mndi% after haVing been in service, to detect any change in the capacity determined by the acceptance test. _ The test is intended to determine' overall battery degradation due to age and usage.

A battery modified cerformance discharge test iWM@formance A

n BMe fMD'144). Either the battery per 65

~

d sc arge test or the modified performance discharge test is A

acceptable for satisfying SR 3.8.4.8; however, only the j$

modified performance discharge test may be used to satisfy (continued)

CEOG STS B 3.8-57 Rev 1. 04/07/95

4 DC Sources-Operating 8 3.8.4 BASES SURVEILLANCE SR_ 3.2.4.8 (continued)

REQUIREMENTS

,A SR 3.8.4.8 while satisfying the requirements of SR 3.8.4.7 at the same time.

The acceptance criteria for this Surveillance are consistent with IEEE-460 (Ref. 9) hat the battery be replaced if its and IEEE 485 (Ref. 5). These references recommand t capacity is below 80% of the mahufacturer rating. A capacity of 80% shows that the battery rate of deterioration is increasing, evea o % ere is ample capacity to meet the load requirements.

The Surveillance Fr

.y for this test is normally 60 months. If the b,

-ry shows degradation, or if the battery has reached 8., of its expected life and capacity is

< 100%'of the manufacturer's rating, the Surveillance frequency-is reduced to 12 months. However if the battery shows no degradation but has reached 85% of,its expected life the Surveillance frequency is only reduced to 24 montbs for batteries that retain capacity 5100% of the manufacturer's rating. Degradation is indicated, according to 1EEE-450 (Ref. 9?, when the battery capacity drops by more than 10% relat1ve to-its capacity on the previous

'j

= performance test or when it is 1$10%@ies are consistent below the manufacturer's rating. These Frequenc with the recommendations,in IEEE-450 (Ref. 9).

(ThT ~ R is ified W a Note. Ae reason f he Not is al dietr 6 (utinn tv/

em and chal ing t Survei1Mce would the l

p nge safet ystems ectr it maAbe taktg for unpMnec events Inalvtisf@ 1str-g hf Y AM!nliuJC_).

REFERENCES 1.

U 6'W R. Mr. Aadia ntfi/A. cbV171 2.

Regulatory Guide 1.6, March 10,1971.

3.

IEEE-308-(19780

4. hAR, Chapter @BD 5.

IEEE-485 4)9830 June 1983.

(continued)

CE00 STS B 3.8-58 Rev 1, 04/07/95 s

i

1 l

l l

DC Sources-Oper.at.in!

wt REFtRENCr$

6.h8AR, Chapter 6 h

7. %sRR, Cne,ter g@

3.

Regulatory Guide 1.93, December 1974.

~l g.

!Ett-450-h 30.

Regulatory Culde 1.32, February 1977.

(1. fe'gulatory Gul[.129, Decembey/3974. }

f l

w Ct0G STS g 3,0 59 Rey 1, 04/07/g5

DC Sources-Shutdown B 3.8.5

-B 3.8 ELECTRICAL POWER SYSTEMS B 3.B.5 DC Sources-Shutdown

' BASES BACKGROUND A description of the DC sources is provided in the Bases for LCO 3.8.4, *00 Sources-Operating.'

-APPLICABLE The initial co itions of BasisAccident(0 )and transient nalyses in the SAR, Chapter Sf)(Ref, and 4

Chapter ( )(Ref. 2), 4ssume that Engi@neered Safety Feature SAFETY ANALYSES 4

=(ESFD sysU ms are-OPERABLE. The DC et_zt't?2ntemrywRgg

-- providqt) normal and emergency DC -i-"=rva=* for the-Q @

DGs, emergency auxiliaries, and co'ntrol and ' switching during all MODES of operation.

The OPERABILITY of the DC subsystems is consistent with the initial assumptions of the accident analyses and the requirements for the supported systems' OPERABILITY.

The OPERABILITY of the minimum DC (Etsvaad sources

~h during MODES 5 and 6 and during movement of irradiated fuel A 6.%

assemblies ensures that:

M a.

The unit can be maintained in the shutdown or refueling condition for extended periods; b.

Sufficient instrumentation and control capability is available for monitoring and maintaining the unit status; and c.

Adequate DC 9MctprcanoweAt provided to mitigate events postulated dur' ng shutdown, such as a fuel handling accident.

The DC sources satisfy Criterion 3 of the NRC Policy Statement.

M

(.00 The DC esttricai newarm-n=, each esmyMab ~~

sistin~g ofAHb batterW one battery charger dE!')

, and the corresponding control equipment and n

interconnecting cabling within the

, are required to be cSl.)

1 (continued)

CEOG STS~

B 3.8-60 Rev 1, 04/07/95

.e

l

\\

i i

DC Sources-Shutdown B 3.8.5

\\

BASES LCO OPERABLE to support required trains of distribution systems (continued) required OPERABl.E by LCO 3.8.10, ' Distribution Systems-Shutdown. ' This ensures the availability of sufficient DC tidirJC1LtMb sources to operate the unit I

in a safe manner and to mitigate the consequences of postulated events during shutdown (e.g., fuel handling accidents).

APPLICABillTY The DC (Tetric11 JLokd sources required to be OPERABLE in HODES 5 and 6, andTuring movement of irradiated fuel A\\

assemblies provide assurance that:

I '-.1 a.

Required features needed to mitigate a fuel handling accident are available; b.

Required features necessary to mitigate.the effects of events that can lead to core damage during shutdown are available; and c.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cold y

shutdown condition or refueling condition.

The DC53tetricib power requirements for MODES 1, 2, 3, and 4 are covered in LCO 3.8.4.

ACTIONS A.1. A. 2.1. A. 2. 2. A. 2.3. and A. 2. 4 cdb4 if two trains ara required per LCO 3.8.10, the remaining no Ag, a train with DC power available may be capable of su 5 e, G. gw"", sufficient systems to allow continuation of CORE Aborting ail;,at<

t ERATIONS t4cbt and fuel movement. By allowing the option to declare i,<.di.Avi 6.\\

required features inoperable with the associated DC power r,m usse.su em oa. A c' -

source oua h f*cM ',2.1**'),qimpleme(s) inoperable, appropriate restrictions will be nted in accordance with the affected required A Amom h... te..

features LCO ACTIONS. In many instances, this option tray

. g,J vNh u p.4.

$1nvolve undesired administrative efforts. Therefore, the s4A o so.3 allowance for sufficiently conservative actions is made w..k g ue.We. M i {ue.e., to suspend CORE ALTERATIONS, movement of irradiated i

ass,.M;<;,s,.1;J,f C I reactivity additions). The Required Action to suspend M1 l assemblies, and operations involving positive A

,c.,a

.,A i, is nu g,, 6 uo 1.6 3 **.tj positive reactivity additions does not preclude actions to J cr

t. 1 r.u, h a.,A.,,kJep..A..N J re.do<

opes.

e A - <*,2,3 4, h.4 at wt a oow i p yo

+

la rx.../,,. #MW" (

is id. 8 % 4 s %J,nw.w

.(

ir< *.O d. J (I ses, a.s o.J.I ad R wm < >.,t-eras.,

c.

w.g CEOG STS B 3.8-61 Rev 1, 04/07/95 4 -

M

i DC Sources-Shutdown B 3.8.5 BASES ACTIONS A.1. A.2.1. A.2.2. A.2.3. and A.2.4 (continued) maintain or increase reactor vessel inventory, provided the required SDM is maintained.

Suspension of these activities shall not preclude completion hf actions to establish a safe conservative condition.

These actions minimize probability.of the occurrence of postulated events. It is further required to immediately initiate action to restore the required DC finrrmaaowe l

Cchaa el weep and to continue this action until res" oration 1 t

accomplished in order to provide the necessary DC

)

power to the unit safety systems.

The completion Time of immediately is consistent with the required times for actions requiring prompt attention. The restoration of the reautred DC Eisunca wowar bubskta=D should be completed as quickly as possib' e in order to minimite the time during which the unit safqty systems may be without sufficient power.

SURVEILLANCE SR 3.8.5.1 w3 REQUIREMENTS

(

SR 3.8.5.1 states that Surve111ances required by SR 3.8.4.1 through SR 3.8.4.8 are applicable in these MODES. See the corresponding Bases for LCO 3.8.4 for a discussion of each a

SR.

This SR is modified by a Note. The reason for the Hote is to preclude requiring the OPERABLE DC sources from being discharged below their capability to provide the required power supply or otherwise rendered inoperable during the performance of SRs. It is the intent that these SRs must still be capable of being met, but actuni performance is not required.

1.hSAR, Chapter @iO REFERENCES

2. p AR, Chapter

@g t

S.

.TCCG ~ 4so.

CEOG STS B 3.8-62 Rev1,04/07/95

i Battery Cell Parameters B 3.0.6 l

l B 3.8 ELECTRICAL P0k'ER SYSTEMS B 3.8.6 B;.ttery Cell Parameters BASES it.v)

BA sGR0VHD This LCO delineates the a s on electrolyte temperature,

@v and specific ravit for the DC power level.,. float voltag source batteries.. A discussion of khese fatteries and their

,p M e t tf OPERABILITY requirements is provided in the Bases for LCO 3.8.4, 'DC Sources-Operating,' and LCO 3.8.5, 4

'DC Sources-Shutdown APPLICABLE The initial conditions of esign Basis Accident (DBA) and SAFETY ANALYSES transient nalyses in the SAR, Chapter pp (Ref.1) and 4

s N ~ Chapter (Ref. 2), assume Engineered Safety Feature 3

systems are OPERABLE. The DC atmrbime sym,

w,,,

providennormal and emergency DC electrical power for t I

bGs, eMrgency auxiliaries, and control and switching during all MODES of operation.

g

,,..I The OPERABILITY of the DC

. ee is consistent with the gj initial _usumptions_.of the accident analyses and is based pintti ing at1 east onrtr:1roTTc_unMNT intTUd n meeting the design basis gf the sour s OPERABLE duri g.

acci t cond ons, in t e/ event of:

A" '

I owe an

/

5 4.,

t co n4

~9

a. J uo 3 Y 5.

4 A worst case sinahtfA11 t_

Battery cell parameters satisfy Criterion 3 of the NRC Poliev Statement.

L LC0 Battery cell parameters must remain within acceptable limits to ensure availability of the required DC power to shut down the reactor and maintain it in a safe condition after an anticipated operational occurrence or a postulated DBA.

Electrolyte limits are conservatively establishe'd, allowing A

continued DC electrical system function even with Category A g

and B limits not met.

A g.

t (continued)

CE0G STS B 3.8-63 Rev I 04/07/95

Battery Cell Parameters B 3.8.6 BASES (continued)

APPLICABILITY The battery cell parameters are required solely for the support of the associated DC electrical power subsystems.

Therefore, battery electrolyte is only required when the DC power source is required to be OPERABLE. Refer to the Applicability discussion in the Bases for LC0 3.8.4 and LCO 3.8.5.

ACTIONS A.1. A.2. and A 31.~ t m p.,

o o

With one or mor^elens in one or more batteries not within

, DJ1CtX limits (i.e.. Category A limits not met or Category B limits T$ M l

not met or Category A and B limits not met) but within the d

Aca ted tW Category C limits specified in Table 3.8.6-1, the battery is 4A degrtded but there is still sufficient capacity to parform 4

the intended function. Therefore, the affected battery is not required to be considered inoperable solely as a result A

i of Category A or B limits not met, and continued operation la is permitted for a limited period.

i@

The pilot cell electrolyte level and Tham required to be verified to meet the Category C limits g

within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months (Required Action A.1). This check will

, Dj provide a quick indication of the status of the remai er of the battery cells. One hour provides time to inspec the k

electrolyte level and to confirm the6Ntx f the pilot cells. One hour is considered a reasonab e amount of time to perform the required verification.

, h Verification that the Category C lim ts re et Requi d ActionA.2)grovidesassurancethat g

d B limits n

a er f ca on ecau e pec f c av y r

Ionstera no

' ification and the assurance that the fe on et he t me requ red o o

thj] required

{

y parameters are not severely deg ed thi time i te a Fr que e p o ce ur e an 4

(continued)

CEOG STS B 3.8-64 Rev 1, 04/07/95

+ s, c. -.. e

- p t

INSERT B 3.8.6 ACTIONS NOTE i

lhe Actions table is modified by a Note which indicates that separate Condition entry is allowed for each battery. 'This is acceptable, since the Required Actions for each Condition provide appropriate compensatory actions for each inoperable DC clannel. Complying with the Required Action for one inoperable DC channel may allow for continued operation, and subsequent inoperable DC subsystem (s) m gowrned by separate Condition entry and application of associated Required Actions.

1 l

l 4

e m

4

Battery Cell Parameters B 3.B.6 i

BASES ACTIONS A.1 A.2. and A.3 (contin

)

.i JJ,J.3 Q i h Centinued operation

~ permitted for S1 days before 9

battery cell parameters must be restored to within Category A and B limits. With the consideration that, while battery capacity is degraded, sufficient capacity exists to perform the intended function and to allow time to fully l

restore the battery cell parameters to normal limits, this time is acceptable prior to declaring the battery l

inoperable, l

E.d With one or more batte' ries with one or more battery cell parameters outside the Category C limit for any connected cell, sufficient capacity to supply the maximum expected lon_d_ requirement is not assured and the correspondin DC (ech-e i p wer sut(vs R D must be declared inoperab e.

rm Additionally, other potentially extreme conditions, such as pt1na Ath Required Actior@of Condition A GElb o

a.,

Completion Time nuverage electrolyte r

[..

temperature of representative celts tajhnetnNGBDff, are ~_

f also cause for immediately declarin$e.he associated D4 (,p b t

~

W on=iM g1WFTTYi Uner4ubsy'stf@Q inoperab J

'/c g

SURVE!LLANCE SR 3.8.6.1 REQUIREMENTS This SR verifies that category A battery cell parameters are consistent with IEEE-450 (Ref. 3), which recommends regular battery inspections (at least one per month) including voltage, specific gravity, and electrolyte temperature of pilot cells.

SR 3.8.6.2 The quarterly inspection of specific gravity and voltage is consistent with IEEE-450 (Ref. 3)._JTn addition, wiinin' g4noursoraDattery M Farge

[110)Vo a battery

/[150 the batt y must be monstrate o

over ~ arge y B 1] V me Cateo 1

s.

Tran ents, suc as motor s rting I t

sien, which ay mement rily cause attery vol ge to p to 5 [110] 4, do not nstitute a attery di. harge m

(continued)

CEOG STS B 3.8-65 Rev 1, 04/07/95 j

4 Battery tell Parameters 8 3.8.6 BASES SURVEILLANCE

/W3.8.6. 2 (continued) X REQUIREMENTS f

p ed the tery al volt and float c ren turn to

-transi values.

s inspecti is also consist with IE 450 ing a s'(Re

?. which re nds special inspe ons foll re d9scharge overchargeAo ns e that n ignifi s a consequence or engch diugwea or overcharge.yf, occur

. de radad on the batt

$R 3.8.6.3 This Surveillance verification.

t the avera e temperature ofrepresentativecellsis>(

Fisconsiskentwitha reconnendation of IEEE-450 (Re 3

which states that the temperature of electrolytes in repr)e,sentative cells should be detemined on a quarterly basis.f b

Lower than normal temperatures act to inhibit or reduce

.F* M

'6 battery capacity. This SR ensures that the operating em b b temperatures remain within an acceptable operating range.

3 This limit is based on manufacturer recommendations.

to o el ts("U')

u

}

Table 3.8.6-1

\\

This e delineates the limits on electrolyte level, ca egorles.d s ecific gravity for three different an T e meaning of each category is discussed 33 below.

Category A defines the normal parameter limit for each designated pilot cell in each battery. The cells selected as pilot cells are those whose temperature, voltage and electrolyte specific gravity approximate the state of charge of the entire battery.

The Category A limits specified for electrolyte level are based on manufacturer recommendations and are consistent with the guidance in IEfE-450 (Ref. 3) level indication for with the extra 4 inch allowance above the high water operating margin to account for temperat and e

effects. In addition to this allowance, tnot Table'3.8.6-1 permits the electrolyte le to b vethefgj,<m pectfled max 1 mum level duringtequalizing chtr9b. provided 'LJ g

it is not overflowing. These limits ensure t at the plates Q

od f.ilwg

(

(continued)

, ' 1a CEOG STS

_ B 3.8 66 Rev1,04/07/g5 (Le 7., se'4 h

T 3

y oi I

reg d'^

4 II.a g d 4 p.At s-d*g<. )

Battery Cell Parameters B 3.8.6 BASES l

SURVEILLANCE Table 3.6.6-1 (continued)

REQUIREMENTS suffer no physical damagelntained in the event of transient and that adequate electron transfer capability is ma conditions. IEEE-450 (Ref. 3 recommends that electrolyte level readin s should be made)only after the battery has been at flon charge for at least 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

- The Category A limit specified for(kvp a is 2 2.13 V per cell. This value is based on a recommen a ton of IEEE-450 (Ref. 3), which states that prolonged operation of l

cells < 2.13 Y can reduce the life expectancy of cells.

The Category A 1 it specified for specific gravity for each pilot cell is k

.2000 0.015 ecif'c(gravity or a batterbelow the manufacturer fully charged nominal current that had stab 11tred at a low value).y charging This value is characteristic of a charged cell with adequate capacity.,,

According to IEEE-450 (Ref. 3), the specific gravit u

readings are based on a temperature of 77'F,(25'C eqic The specific gravity readings are corrected for actual

("

electrolyte temperature and level.

For each 3'F above 77'F (25'C),1 point (0.001) below 77'F.isaddedtothe(

( ';

readingt 1 point is subtracted for each 3'F The specific gravity of the electrolyte in a cell increases with a loss of water due to electrolysis or evaporation.

Category B defines the normal parameter limits for each connected cell. The term ' connected cell' excludes any battery cell that may be jumpered out.

The category B limits specified for electrolyte level and m

c.V vomM are the same as those specified for Category A

\\!)

and have been discussed above. The Category B limit s

ifi d for specific gravity for each connected cell is t

.19 (0.020 below the manufacturer fully charged, no inal pecift. gravity with the avera e of all connected specif<c(0.010be)lowthemanufac!urerfullycharged, 1.205lh cell nomi gravity. These values are based on manufacturer's recommend)ations.

The minimum specific gravity value required for each ce'l ensuret/that 1$

at f he e

e

- d2 %.i - -e.g.a a

specAs.

redd h d maskf 4 aveag e.((f hav; Wpe-ye g("M (continued) vw-CEOG STS B 3.8-67 Rev 1,'04/07/g5 4

Battery Cell Parameters B 3.8.6 CASES SURVEILLANCE Igble 3.8.6-1 (continued)

REQUIREMENTS Category C defines the limit for each connected cell. These valuesIy exists to perform the intended function andalthough reduced, provide as capac1 maintain a margin of safety. When any battery parameter is outside the Category C limit the assurance of sufficient capacitydescribedabovenolongerexistsandthebattery must be declared inoperable.

,,p g gy, Tro Category C limit specified for electro'ite level a ove Q

the top of the plate; and not ove ging); ensures at the h lA Q suffer no physical damage an maintain

.au st e_

i e etrohlransfer capability., e Category KLImkl0 i

forCUniE5Rhe is Wad e IEEE-450 Ref. 3), which & 9 s a es that a cell voltage of 2.

Y or below, under float U

led.f conditions and not caused by elev ted temperature of the cell, indicates internal cell pro lems and may require cell replacement.

g The Category C limit of average specific gravity 1[t).195h is based on manufacturer recomendations (0.020 below the manufacturer recomended fully charged nominal specific gravity). In addition to that limit It is required that Mr the specific gravity for each connected cell must be no less than 0.020 below the average of _all connected cel1s. Th_is limit ensures that or a n y one u ur gA QellAces At mad.Jthe ef fR go overall egradati of the satte

'* "8W

wu'fW' YA The footnotes to Table 3.8.6-1 are applicable to Category A, B, and C specific gravity. Footnote (b) to Table 3.8.6-1 tyJ h M requires the above mentioned correction for electrolyte mde L ef) level and temperature, with the exception that level g

A c.h u huab correction is not required when battery charging current is Kay,,As9,A amps on float charge. This current provides, in g'30

,,g general, an indication of o tery condition, o

)

Because of specific gravity gr that are produced during the recharging process, delays of several days may occur while waiting for the specific gravity to stabilize.

A stabilized charger current is an acceptable alternative to O*

specific gravity measurement for detemining the state of 70 charge. This phenomenon is discussed in IEEE-450 Footnote (c) to Table 3.8.61 allows the float char (geref. 3).

current to be used as an alternate to specific gravity for C

(continued)

CEOG STS B 3.0-68 Rev 1, 04/07/95 l

i Battery cell Parameters B 3.8.6 l

BASES SURVEllt.ANCE Table 3.8.6-1 (continued)

REQUIREMENIS ays following a battery equalizing recharge.

up to Withi days, each connected cell's specific cravity must be mens r to confim the state of charge. Following a minor battery recharge (such as equalizing charge that does specific gravity gradients are r.ot follow a deep dischtroe)ing measurements may be made in not significant, and confirm less than(y() days.

ished )

e (b he value of/12 amps us in foot ominal valu#for' :loat c Revi r's Notes F

rent est is the and c)batte vendor as f fpresentin fully cha ed I

7

>fthe

/sattery w an allowar}ct for overal battery c d tion.

1.hAR, Chapter >(6b REFERENCES 2.hAR, Chapter s

3.

IEEE-450-Q78 s

9

\\.

CEOG STS B 3,8-69 Rev'1,04/07/95 s

DISCUSSION OF HASES DEYlATIONS l' ROM NUREG 1432 SECTION 3.8. ELECTRICAL, POWER SYSTEMS PLANT SPECIFIC CilANGES 1,

'this change to the non bracketed value, system name, or terminology was made to be consistent with the Calven Cliffs specific number, system name, or terminology 'this change also includes l

additions to or deletions from the llases to make them comply with Calvert Cliffs' design, i

operations, or safety analyses.

2.

This addition, deletion, or modification to references, or the changing of reference numbers was performed to ensure that the references are applicable to Calver1 Cliffs, and to ensure consistency between references in the text and the reference section.

3.

This change incorporates Calvert Cliffs specific information into brackets, litacketed information located throughout NUREG 1432 will be replaced with the specific Calvert Cliffs information, l

4.

Calvert Cliffs has an Updated Final Safety Analysis Report (UFSAR), therefore, "FSAR" will be changed to "UFSAR" throughout the Improved Technical Specification (ITS) Dases.

5.

The llackground Section of the 3.8.1 Ilases was rewritten in its entirety to discuss the Calvert Cliffs AC sources. These changes make the llackgrmmd Section consistent with the Calvert Cliffs design.

6.

'this change deletes information from the Limiting Condition for Operation (LCO) llases Section 3.8.1 which describes the offsite circuits relative to fast transfer capability. Calven Cliffs does not have fast transfer capability, therefore, this paragraph is not applicable. This change is consistent with Calvert Cliffs' design.

7.

This change deletes the bracketed information labeled Reviewers Notes. This is acceptable because the Reviewers Notes are information for the NRC reviewers and not intended to be maintained in the individual plant's Technical Specifications.

8.

This change adds or deletes information from the Actions Section of the 3.8.1 Ilases, in Sections A.2, and D.I and D 2, the reference to the motor-driven aux llary feedwater (AFW) pumps was deleted because Calvert Cliffs has two 100% turbine-driven AFW pumps, in Section 11.2, the reference to single train systems, such as turbine driven AFW pumps, was deleted because Calvert Cliffs has two turbine driven AFW pumps. Also, in Actions C.I and C.2, the last paragraph, which discusses allowing continued operation with two offsite circuits inoperable, was deleted, if Calvert Cliffs loses two required ofTt.ite circuits, then both units would trip. This paragraph was deleted because it could cause confusion to the reader alluding that power operations may continue if one is restored within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . These changes are consistent with Calvert Cliffs design.

9.

This change to the ITS Bases incorporates changes made to the ITS or is made to ensure l consistency between the ITS and ITS Dases.

10.

NUREG 1432 Section 3.8 contains information that cannot be verified against the Calvert Cliffs design. The Calven Cliffs ITS will not include infonnation that cannot be verified to be applicable to the Calvert Cliffs design. Therefore, this information is being deleted.

CALVERT CLIFFS UNITS 1 &2 3.8 1 Revision 3

DISCUSSION OF HASES DEYlATIONS FROM NUREGol432 SECTION 3.N - ELECTRICAL POWER SYSTEMS l

I

)

11.

This change adds or deves information from the SR Section of the 3.8.1 Dases to more specifically coincide with the Calvert Cliffs current practices or design. In Section 3.8.1.3, the discussion about power factors is being deleted because it is not applicable to Calvert Cliffs.

Als change is consistent with the Calvert Cliffs design.

12.

Not used.

l l

l 13.

This change adds or deletes information in the Background Section of the 3.8.3 Dases to more specifically coincide with the Calvert Cliffs current practices or design. A section was added to more specifically describe the Calvert Cliffs dicsci fuel oil storage tanks.1he sentence that references underground fuel oil storage tanks is being deleted because Calvert Cliffs does not have underground fuel oil storage tanks. These changes are consistent with Calvert Cliffs' design.

14.

This change adds wording to LCO Section of 3.8.4 which states that a battery charger is considered Operable as long as it is receiving power from its normal source and is capable of being aligned to a diesel generator (DG) within two hours of an event. This was added because the chargers provide a post accident recovery function by recharging any discharged batteries.

Because at least two hours are available, operator Action can be credited for manual realignment of a DG to a DC bus to support charging. Therefore, a charger still performs its design safety function even if it does not automatically receive emergency powcr from a DO. This is consistent with the Calvert Cliffs current licensing basis.

15.

This change adds clarifying information to the Hackground Section of the 3.8.7 Dases. The added informatka clarifies that the inverters can be powered from the DC Bus which is energized from the station battery and/or battery chargers, This added information is consistent with Calvert Cliffs' design.

16.

This change adds clarifying information to the LCO Section of the 3.8.7 Dases. The added information clarifies that there are four inverters per Unit, and that the AC vital bus can be powered from the backup bus, which is a 120 VAC bus powered by Engineered Safety Features motor control center through a segulating transformer. This added information is consistent with Calvert Cliffs' design. A similar statement on the back up power source to the AC vital bus was also added to the Actions Section of the 3.8.7 Bases.

17.

This change deletes information that is not applicable and adds clarifying information to the Backgiound and LCO Sections of the 3.8.9 Bases. The added information replaces trains with load groups and discusses specifically the composition of the 120 VAC vital bus. These changes are consistent with the Calvert Clifts design.

18.

Table B 3.8.91 is revised to include Calvert Cliffs specific information. This table lists the AC and DC electrical power distribution systems. Calvert Cliffs is a two-unit site with shared systems and shared DC sources, that supplies power (through the AC vital bus) to the other unit's Reactor Protective System and Engineered Safety Features Actuation Signal instrumentation. Constructing a table similar in format to the one in B 3.8.91 Dases would be very complicated and not useful. Current Technical Specification 3.8.2.1 contains a similar table in the LCO, hat information is used as Table B 3.8.91, in addition, a reference is added to the Calvert Clifts UFSAR which contains a drawing (UFSAR Figure 8 9) that depicts the CALVERT CLIFFS - UNITS 1 & 2 3.8 2 Revision 3 J

DISCUSSION OF HASES DEYlATIONS FROM NUREG 1432 SECTION 3.8 ELECTRICAL POWER SYSTEMS information located in the table. Therefore, the referenced table in the liases will be supplemented with reference to the UFSAR figure.

19.

NUREG 1432113.8.1 Actions contain statements w hich state "According to" certain teferences.

Calvert Cliffs ITS will state " Consistent with" certain references for those references Calvert Cliffs is not committed to. For references Calvert Cliffs is not committed to, "According to" is inappropriate. His change is consistent with Calvert Clifts' current licensing basis.

20.

NUREO 1432 !! 3.8.1 SR 3.8.1.4 states the SR verifies that the DGs are capable of synchronizing with the offsite electrical system ar.d accepting loads greater than or equal to the equivalent of the maximum expected accident loads. Calvert Cliffs ITS will not verify the DGs are capable of accepting loads greater than or equal to the equivalent of the maximum expected accident loads. Calvert Cliffs ensures this in a 24 month SR (Calvert Cliffs ITS SR 3.8.1.11).

His change is consistent with Calvert Cliffs' current licensing basis.

21.

NUREO 1432 SR 3.8.2.1 states the reason some of the SRs are excluded is to prevent paralleling the DO to the offsite power network. De Calven Cliffs ITS will not include this statement.

Whenever Calvert Clifts runs the DO, it is paralleled to ofTsite power; therefore, the statement was deleted. %is change is consistent with Calvert Cliffs' current licensing basis.

22.

NUREO 1432 Specification Required Action A.2.$ requires the associated required SDC subsystem (s) to be declared " inoperable" and "not in operation." llowever, this does not preclude using the inoperable SDC subsystem (s) if needed. The appropriate actions for the inoperable SDC subsystem (s) are still required to be followed. This change clarifies the Section 3.8.10 Hases that SDC subsystem (s) declared inoperable due to inoperable distribution systems do not have to be turned offiroperating.

23.

NUREG 1432 B 3.8.9 LCO Section states that Operable vital bus electrical power distribution subsystems require the associated busses to be energized to their proper voltage from the associated inverter via inverted DC voltage, inverter using internal AC source or Class lE constant voltage transformer, improved Technical Speci0 cation B 3.8.9 LCO Section will not specifically state that the proper voltage is from the associated inverter via... It is not necessary to state where the vital bus is powered from to be Operable, only that it has proper voltage. De inverter Technical Speci0 cation requires the inverter to power the vital bus and if not then the backup source is allowed for a limited period of time. %crefore, the vital bus 'lechnical Specification is not required to be entered solely due to not being powered f 4t ti e inver'er The inverter Technical Specification requires the power distribution Technicai (pv *ication t.-

be entered if the inverter cannot be restored within the allowed outage time, llowevs., the powe.

distribution Technical Sptclucation is required to be entered if the proper voltage is not on the vital bus. His change is consistent with the 3.8 Technical Speel0 cations.

This change will be reviewed fer applicability to other Combustion Engineering plants and other vendors. Based on these results, a generic change will be proposed accordingly.

24 27. Not used.

28.

The Reviewer's Note associated with the NUREG 1432 Bases for SR 3.8.4.4 is not included in the Calvert Cliffs ITS Ba.scs. This information allows the NRC reviewer to identify what is CALVERT CLIFFS UNITS 1 & 2 3.d 3 Revision 3

IllSCUSSION OF HASES I)EVIATIONS FROM NUREG 1432 SECTION 3.8. ELECTRICAL POWF.R SYSTEMS needed to meet the requirement. 'the Note is not meant to be retained in the final version of the plant specinc submittal.

29.

The description of a modified performance discharge test in the NUREG 1432 Ilases for SR 3.8.4.7 is moved to Calvert Cliffs ITS SR 3.8.4.8 Ilases. This is donc since Calvert Cliffs ITS SR 3.8.4.8 is the Surveillance that requires the modined performance discharge test. Due to this move, the references to the description of the modified performance discharge test being l

located in the description of the service test are deleted, in addition, the reason for the Note to Calvert Clifts ITS SR 3.8.4.7, which allows performance of the modined performance discharge test in lieu of the service test, is provided consistent with the ISTS Writer'c Guide.

l 30.

Editorial changes are made for clarification or to be consistent with similar statements in other places in the ITS Dases.

31.

Battery cell parameters support the operation of the DC electrical source channels and the Battery Cell Parameter Speci0 cation is required to be applicable during the same MODES and conditions as in LCO 3.8.4, "DC Sources Operating," and LCO 3.8.5, "DC Sources.

Shutdown." The same safety analyses discussions as those discussed in the Bases for LCO 3.8.4 and LCO 3.8.5 are also applicable to the Battery Cell Parameter Specification. As a result, the NUREG 1432 Dases for the Battery Cell Parameter Specification (D 3.8.6) in the Applicable Safety Analyses Section are revised accordingly, t

CALVERT CLIFFS. UNITS 1 & 2 3.8-4 Revision 3

ML20210K971

Text

Navigation menu

Search