Text

Proposed Tech Specs Incorporating Proposed Changes Agreed to During 890330 NRC Meeting & Subsequent Conference Calls, Proposed Changes Necessitated by New Switchgear Bldg Mods & Clarification of Level 1 Undervoltage Surveillance Tests
	ML20248A070
Person / Time
Site:	Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date:	08/01/1989
From:	; CONNECTICUT YANKEE ATOMIC POWER CO.
To:	;
Shared Package
ML20248A051	List: B13327, Proposed Tech Specs Incorporating Proposed Changes Agreed to During 890330 NRC Meeting & Subsequent Conference Calls, Proposed Changes Necessitated by New Switchgear Bldg Mods & Clarification of Level 1 Undervoltage Surveillance Tests; ML20248A046;
References
	B13327, NUDOCS 8908080195
	Download: ML20248A070 (25)
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. . l Docket No. 50-213- .]

B13327

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'I Attachment 1 Haddam Neck Plant -c

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.l Proposed Revision to Technical Specifications l l

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1 August 1989 1

l 8908080195 890801 PDR ADOCK 05000213 P- PDC w-- - -

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r 3/4.8 ELECTRICAL POWER SYSTEMS

' 3 /4 . 8'.' 1 A.C. SOURCES OPERATING )

LIMITING CONDITION FOR OPERATION l

l 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be ,

OPERABLE:

a. Two physically independent circuits between the offsite t transmission network and the onsite Class IE Distribution System, I and l 1

b. Two separate and independent diesel generators, each with:

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A separate engine-mounted fuel oil day tank containing a l 1) minimum volume of 400 galions of fuel (except during engine operation),

2) A separate underground fuel oil storage tank containing a minimum volume of 3,250 gallons of fuel, and j

3) A separate fuel transfer pump.

APPLICABILITY: MODES 1, 2, 3, and 4. I ACTION:

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a. With one offsite circuit inoperable, demonstrate the OPERABILITY of the remaining A. C. sources by performing Specifications 4.8.1.1.la. within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter. If either diesel generator has not been successfully tested within the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , demonstrate its OPERABILITY by performing Surveillance Requirement 4.8.1.1.2a.4 separately for each such diesel generator within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . Restore the uffsite circuit to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 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 .

b. With one diesel generator inoperable, demonstrate the OPERABILITY of the A.C. offsite sources by performing Surveillance Requirement 4.8.1.1.la within I hour and at least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter; and if the diesel generator became inoperable due to any cause other than preplanned maintenance or surveillance testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by performing Surveillance Requirement 4.8.1.1.2a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months regardless of when the inoperable diesel generator is restored to OPERABILITY; restore the diesel generator to OPERABLE status within 72 hot.rs 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 SHU100WN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

HADDAM NECK 3/4 8-1

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ELECTRICAL POWER SYSTEMS 1

AC SOURCES j LIMITING CONDITION FOR OPERATION ACTION (Continued) I

c. With one offsite circuit and one diesel generator of the above- ;

required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A. C. sources by performing Specifications 4.8.1.1.la. within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per q 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter; and if the diesel generator became inoperable due to any cause other than preplanned maintenance or surveillance ,

testing, demonstrate the OPERABILITY of the remaining OPERABLE I diesel generator by performing Surveillance Requirement 4.8.1.1.2a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ; restore at least one of the !

inoperable sources to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months or be 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Restore at least two offsite :

circuits and two diesel generators to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from the time of initial loss 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 . l

d. With one diesel generator inoperable, in addition to ACTION b. or

c. above, verify that the charging pump, HPSI. pump, LPSI pump and RHR pump which depend on the remaining OPERABLE diesel generator as a source of emergency power are also OPERABLE. If these conditions are not satisfied within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 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 .

e. With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by:

performing Specification 4.8.1.1.la. within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least -

once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter; restore at least one of the inoperable diesel generators 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 next 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Restore both diesel generators.

to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months from the time of initial loss 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 next 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . i 4

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HADDAM NECK 3/4 8-2

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1 1 ELECTRICAL POWER SYSTEMS

'ACSOURCES SURVEILLANCE RE0VIREMENTS 4.8.1.1.1 Eah of the above required independent circuits between the offsite transmission network and the Onsite Class IE Distribution System shall be:

a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments and indicated power availability.

f B.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

a. In accordance with the frequency specified in Table 4.8-1 on a STAGGERED lEST BASIS, by:

1) Verifying the fuel volume in the engine-mounted fuel oil day tank to be at least 400 gallons (except during engine operation),

2) Verifying the fuel volume in the underground fuel oil storage tank to be at least 3,250 gallons.

3) Verifying the fuel transfer pump starts and transfers fuel from the fuel oil storage tank to the engine-mounted fuel oil day tank,

4) Verifying the diesel starts from ambient condition and accelerates to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 i420 volts and 6011.2 Hz within 10 seconds after the start signal,*

5) Verifying that once the generator is synchronized and connected to the bus, it is manually loaded to between 2750 kW and 2850 kW in less than or equal to 60 seconds ** and operates with a load between 2750kW to 2150kW for at least 60 minutes, and l

These diesel generator starts from ambient conditions shall be performed only once per 184 days in these surveillance tests. All other engine starts for the purpose of this surveillance testing shall allow for gradual acceleration so that mechanical stress and wear on the diesel engine are minimized.

The diesel generator shall be loaded within the specified time limit only once per 184 days. All other diesel generator loadings shall allow for gradual loading so that mechanical stress and wear are minimized.

HADDAM NECK 3/4 8-3

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ELECTRICAL POWER SYSTEMS I 'SURVEILLANCERE0VIREMENT$fContinued)

6) Verifying the diesel generator is aligned to provide standby _

power to the associated emergency busses.

b. At least once per 31 days by verifying that the automatic load sequence timers are OPERABLE with the following allowable elapsed times:

E0VIPMENT ALLOWABLE ELAPSED TIME LPSI Pump 5 3 sec.

HPSI Pump s lo sec. and 2 7 :ac. ;

Service Water Pump 32 i 5 sec.

Backup Service Water Pump 38 i 5 sec.

Containment Recirc. Fan 43 1 5 sec. !

Backup Containment Recirc. Fan 48 5 sec.

c. At least quarterly by checking for and removing accumulated water fram the underground fuel oil storage tanks.

d. By obtaining a sample of new fuel oil upon delivery to the site prior to addition to storage tanks:

1) Verifying in accordance with the tests specified in ASTM-0975-81; a) An API gravity of greater than or equal to 30 degrees but less than or equal to 40 degrees; and b) A water and sediment volume percentage of less than or equal to 0.05% (500 mg/L);

c) A Saybolt viscosity, SUS at 100*F of greater than or equal to 32.6, but not less than or equal to 40.1; and d) A flash point . equal to or greater than 125'F.

2) Verifying within 30 days of obtaining the sample that the oth: oroperties specified in Table 1 of ASTM-0975-81 are met when tested in accordance with ASTM-D975-81 except that the analysis for sulfur may be performed in accordance with ASTM-D1552-79 or ASTM-D2622-82.

e. At least once every 31 days by obtaining a sample of fuel oil from the underground-fuel oil storage tanks in accordance with ASTM-D-270-75, and verifying that:

(1) API gravity is greater than or equal to 30 degrees but less than or equal to 40 degre.es; (2) Water and sediment volume percentage is less than or equal.to' O.05% (500 mg/L); and HADDAM NECK 3/4 8-4

RffTRICAL POWER SYSTEMS SVRVElllANCE RE0VIREMENTS (Continued)

(3) Kinematic viscosity at 40*C is greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistokes (alternatively, saybolt viscosity, SUS at 100*F of greater i

than or equal to 32.6, but less than or equal to 40.1).

f. At least once per 18 months, during shutdown, by:

1) Simulating a loss-of-offsite power coincident with a Safety Injection Actuation sigral, and:

a) Verifying deenergization of the emergency busses and load shedding from the emergency busses; b) Verifying the diesel starts from normal standby '

conditions on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads through the load sequence timers and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads; and c) Verify that'all automatic diesel generator trips, except engine overspeed, generator differential, and engine oil pressure (2 out of 2) are bypassed.

d) Verifying the diesel generator capability to reject a load of greater than the largest single load.

' 2) Verifying that on a Safety Injection Actuation test signal, without loss-of-offsite power, the diesel generator starts on the auto-start signal and operdes on standby for greater than or equal to 5 minutes.

3) Verifying the diesel generator's capability to:

a) Synchronize with the offsite power source while the generator is loaded with 5ts emergency loads upon a simulated restoration of offsite power, b) Transfer its loads to the offsite power source, and c) Be restored to its standby status.

4.8.1.1.3 Reports - All diesel generator failures, valid or nonvalid, shall be reported to the Commission in a Special Report pursuant to Specification 6.9.2 within 30 days. Reports of diesel generator failures shall include information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977. If the number of failures in the last 20 valid tests is greater than 3, the report shall be supplemented to include the additional information recommended in Regulatory Position C.3.b of l Regulatory Guide 1.108, Revision 1. August 1977 l

HADDiJi NECK 3/4 8-5

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN LAST 20 VALID TESTS

TEST FRE0VENCY s1 At least once per 31 days 22 At least once per 7 days **

Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, Revision 1, August 1977, where the number of tests and failures is determined on a per diesel generator basis. For the purpose of this test schedule, only valid tests conducted after the completion of the preoperational test requirements of Regulatory Guide 1.108, Revision 1. August 1977, shall be included in the computation of the *Last 20 Valid Tests."

This test frequency shall be maintained until seven consecutive failure free demands have been performed and the number of failures in the last j 20 valid demands has been reduced to one or less.

HADDAM NECK 3/4 8-6

' ELECTRICAL POWER SYSTEMS

'SHUTDUWN LIMITING COND' TION FOR OPERATION 3.8.1.2 As a minimum, the following A. C. electrical power sources shall I

be OPERABLE:

a. One circuit betweten the offsite transmission network and the Onsite Class IE Distribution System, and

b. One diesel generator, associated with the OPERABLE Onsite Class IE Distribution circuit, with:

1) An engine-mounted fuel oil day tank containing a minimum volume of 400 gallons of fuel (except during engine operation),

2) An underground fuel oil storage tank containing a minimum volume of 3,250 gallons of fuel,and

3) A fuel transfer pump.

APPLICABILITY: MODES 5 and 6.

ACTION:

a. With less than the above minimum required A.C. electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool. In addition, when in MODE 5 with less than two (2) steam generators OPERABLE, or in MODE 6 with the wr.ter level less than 23 feet above the reactor vessel flange, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

b. Entry into Mode 5 pursuant to Specification 3.0.4 with less than the minimum required A.C. electrical power sources OPERABLE is not permitted.

SURVEILLANCE REQUIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the requirements of Specifications 4.8.1.1.1, 4.8.1.1.2 (except for Specification 4.8.1.1.2a.5, 4.8.1.1.2b, 4.8.1.1.2f), and 4.8.1.1.3.

HADDAM NECK 3/4 8-7

ELECTRICAL POWER SYSTEMS 3/4.8.2 D.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.1 As a minimum, the following D.C. electrical sources shall be OPERABLE:

a. 125-volt Battery Bank No. IA, and an associated full capacity charger, and

b. 125-volt Battery Bank No. IB, and an associated full capacity charger.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACIl0B:

With one of the required battery banks or full capacity chargers inoperable, restore the inoperable battery bank and full capacity charger to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at letst 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 .

SURVEILLANCE RE0VIREMENTS 4.8.2.1 Each 125-volt battery bank and charger shall be demonstrated OPERABLE:

a. At least once per 7 days by verifying that:

1) The parameters in Table 4.8-2 meet the Weekly limits,

2) The total battery terminal voltage is greater than or equal to 129 volts on float charge, and

3) The electrolyte temperature of the pilot cell is above 60'F.

ELECTRICAL POWER SYSTEMS

. SURVEILLANCE pE0VIREMENTS (Continued)

b. At least once per 92 days and within 10 days after a battery discharge with battery terminal voltage below 110 volts, or battery overcharge with battery terminal voltage above 150 volts, by verifying that:

1) The parameters in Table 4.8-2 meet the Quarterly limits, and

2) There is no visible corrosion at either terminals or connectors,orthegonnectionresistanceoftheseitemsis less than 150 x 10" ohm.

c. At least once per 18 months by verifying that:

1) The cells, cell plates, and battery racks show no visual indication of physical damage or abnormal deterioration,

2) The cell-to-cell and terminal connections are clean, tight, and coated with anticorrosion material, and

3) The resistance of each cell-to-celg and terminal connection is less than or equal to 150 x 10~ ohm.

d. At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test;

e. At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Once per 60-month interval this performance discharge test may be performed in lieu of the battery service test required by Specification 4.8.2.1.d.;

and f.

At least once per 18 months, during shutdown, by giving performance discharge tests of battery capacity to any battery that shows signs of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.

HADDAM NECK 3/4 8-9

TABLE 4.8.2 BATTERY SURVEILLANCE RE0VIREMENTS WeeklyII) Quarterly (2)

PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLO'dABLEI3)

DESIGNATED PILOT CONNECTED CELL VALUE FOR EACH CELL CONNECTED CELL Electrolyte > Minimum level > Minimum level Above top of Level indication mark, indication mark, plates, and < " above and < %" above and not maximum level maximum level overficwing indication mark indication mark Float Voltage 22.10 volts 22.10 volts 22.07 volts Specifi 21.200(5) 21.190 Not more than Gravity 4) 0.020 below the average of all connected cells average of all Average of all connected cells connec{gjcells

>l.200 >1.195 TABLE NOTATIONS (I) for any Weekly parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months all the Quarterly measurements are taken and found to be within their allowable values, and provided all Weekly and Quarterly parameter (s) are restored to within limits within the next 6 days.

(2) For any Quarterly parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that the Quarterly parameters are within their allowable values and provided the Quarterly parameter (s) are restored to within limits within 7 days.

(3) Any Quarterly parameter not within its allowable value indicates an inoperable battery.

(4) Corrected for electrolyte temperature and level.

(5) Or battery charging current is less than 2 amps when on charge.

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HADDAM NECK 3/4 8-10 )

ELECTRICAL POWER SYSTEMS SHUTDOWN LIMITING CONDITION FOR OPERATION !

3.8.2.2 As a minimum, one 125-volt battery bank and an associated full capacity charger shall be OPERABLE.

APPLICABILITY: MODES 5 and 6.

I ACTION: I

a. With the required battery bank or full capacity charger inoperable, j immediately suspend all operations involving CORE ALTERATIONS, positive l reactivity changes, or movement of irradiated fuel; initiate corrective ;

action to restore the required battery bank and full capacity charger to OPERABLE status as soon as possible.

b. Entry into Mode 5 pursuant to Specification 3.0.4 with the required battery bank and/or full-capacity charger inoperable is not permitted.

SURVEILLANCE REQUIREMENTS __

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4.8.2.2 The above required 125-volt battery bank and full capacity charger I shall be demonstrated OPERABLE in accordance with Specification 4.8.2.1. l 1

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I HADDAM NECK 3/4 8-11

. . 1 ELECTRICAL POWER SYSTEMS 3.8.3 ONSITE POWER DISTRIBUTION i OPERATINC )

i LIMITING CONDITION FOR OPERATION l 3.8.3.1 The following electrical busses shall be energized in the specified manner with tie breakers open between redundant busses except for i

short periods of time while locating shorts or grounds not to exceed 30 l minutes: i

a. Train A-A.C. Emergency Busses consisting of:

1) 4160-Volt Bus-#8, and

2) 480-Volt Busses #4 and #5.

b. Train B-A.C. Emergency Busses consisting of: i i) 4160-Volt Bus #9, and l

2) 480-Volt Busses #6, #7 and #11.

c. 120-Volt A.C. Vital Bus A, energized from its associated inverter connected to D.C. ~us B A,

d. 120-Volt A.C. Vital Bus B, energized from its associated inverter connected to D.C. Bus A,

e. 120-Volt A.C. Vital Busses C & C1, energized from its associated l inverter connected to D.C. Bus B, i

f. 120-Volt A.C. Vital Busses D & D1 energizad from its assocuted inverter connected to D.C. Bus B,

g. 125-Volt D.C. Bus A energized from Battery Bank 1A, and

h. 125-Volt D.C. Busses B and BX energized from Battery Bank IB. ,

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a. With one of the required trains of A.C. emergency busses not fully.

energized, reenergize the train within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 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 .

l HADDAM NECK 3/4 8-12

' ELECTRICAL POWER SYSTEMS i l

'tIMITING CONDITION FOR OPERATION ACTION (Continued)

b. With one A.C. vital bus not energized from its associated l inverter: (1) return all vital busses to their normal power l sop)1y configuration within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT STANDBY wit 11n 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 l j

30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , or (2)(a) energize the vital tus from its alternate

inverter and place the reactor protection trip signal (s) associated with the inoperable bus (in abnormal configurat'lon) in thetripcondition(tomeettheintentofTable3.9-1)within8 ,

l hours 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 i COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , and (b) return all vital busses to their normal power supply configuration within 72 - !

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

c. .With one D.C. bus not energized from its associated battery bank, reenergize the D.C. bus from its associated battery bank within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 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 .

1QRVEILLANCE REOUIRFMENTS ;

1 4.8.3.1 The specified busses shall be determined energized in the required manner at least once per 7 days by verifying correct breaker alignment and ;

indicated voltage on the busses. j HADDAM NECK 3/4 8 - _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ - - - _ .

.1 ELECTRICAL POWER SYSTEMS SHUTDOWS i i'

LIMITING CONDITION FOR OPERATION 1

3.8.3.2- As a minimum, the following electrical busses shall be energized l in the specified manner:

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a. 4160-Volt Emergency Bus #8 or #9,

b. 480-Volt Emergency Busses #4 and #5, if Emergency Bus #8 above is l energized, or Emergency Busses #6, #7 and fil, if Emergency Bus #9 above is energized,*

c. 120-Volt A.C. Vital Busses A and B or Vital Busses C, C1, D, and I D1 energized from their associated inverters connected to their l respective D.C. busses, and l i

d. 125-Volt D.C. Bus A energized from its associated battery bank if Emergency Bus #8 above is energized, or 125-Volt D.C. Bus B and BX energized from its associated battery bank.if Emergency Bus #9 above is energized.

APPLICABILITY: MODES 5 and 6. ;

ACTION: i i

a. With any of the above required electrical busses not energized in the required manner, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, or movement of irradiated fuel, and initiate corrective action to energize the required electrical busses in the specified manner as soon as possible.

b. Entry into Mode 5 pursuant to Specification 3.0.4 with any of the above required electrical busses not energized in the required manner is not permitted.

SURVEILLANCE RE0VIREMENTS ,

4.8.3.2 The specified busses shall be determined energized in the required manner at least once per 7 days by verifying correct breaker alignment and indicated voltage on the busses.

HADDAM NECK 3/4 8-14

3/4.8.1 ELECTRICAL POWER SYSTEMS BASES 3/4.8.1. 3/4.8.2 AND 3/4.8.3 A. C. SOURCES. D. C. SOURCES. ONSITE POWER DISTRIByllQ4 The OPERABILITY of the A. C. and D. C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety-related equipment required for: (1) the safe shutdown of the facility, and (2) the mitigation and control of accident !

conditions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the ;

requirements of General Design Criterion 17 of Appendix A to 10 CFR Part 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources is consistent with the initial condition assumptions of the safety analyses and based upon maintaining at least one redundant set of onsite A.C. and D.C. '

power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss-of-offsite power and single failure of the other onsite A.C. source. When one diesel generator is inoperable, there is an additional ACTION requirement to verify that the charging pump, HPSI pump, LPSI pump and RHR pump that depend on the remaining OPERABLE diesel generator as a source of emergency power, are also OPERABLE. This requirement is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable. The term, verify, as used in this context means to administrative 1y check by examining logs or other information to determine if certain components are out-of-service for maintenance or other reasons.

It does not mean to perform the Surveillance Requirements needed to demonstrate the OPERABILITY of the component.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling condition ensures that: (1) the facility can be maintained in the refueling or shutdown condition for extended time periods, and (2) sufficient instrumentation and control capability is available for monitoring and maintaining the facility status.

The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are based on the recommendations of Regulatory Guides 1.9,

" Selection of Diesel Generator Set Capacity for Standby Power Supplies",

March 10,1971; 1.108, ' Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants", Revision 1, August 1977; and 1.137, ' Fuel-011 Systems for Standby Diesel Generators", Revision 1, October 1979, and guidance given in Generic Letter 84-15.

HADDAM NECK B3/4 8-1

ELECTRIC POWER SYSTEMS BASES A.C SOURCES. D.C. SOURCES. and ONSITE DISTRIBUTION (Continued)

The Surveillance Requirements for demonstrating the OPERABILITY of the station batteries are based on the recommendations of Regulatory Guide 1.129, " Maintenance Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants," February 1978, and IEEE Std 450-1980, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations."

Operability of the batteries and the effectiveness of their charging system is demonstrated by: verifying proper electrolyte temperature, total battery termiaal voltage on float charge, intercell connection integrity, and pertorming battery service and performance (capacity) discharge tests.

Table 4.8-2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific gravity. The limits for the designated pilot cells float voltage and specific gravity, greater than 2.10 volts and 0.015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater than 2.10 volts and not more than 0.025 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells not more than 0.015 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8-2 is permitted for up to 7 days. During this 7 day pe;tod: (1) the allowable values for electrolyte level ensure no physical damage. to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than 0.020 below the manufacturer's recommended full charge specific gravity, ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for specific gravity of an individual cell, not more than 0.040 below the manufacturer's full charge specific gravity, ensures that the overall capability of the battery will be maintained within an acceptable limit; and (4) the allowable value for an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function.

HADDAM NECK B3/4 8-2 .

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- 3 Docket No. 50-211=- l B13327- j

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Attachment 2

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'Haddam Neck-Plant-i Description of Proposed Change.t

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. August 1989 1

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l Attachment 2 B13327/Page 1 DESCRIPTION OF PROPOSED CH,%N,Q1

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The proposed Technical Specifications combine changes as a result of modifi-cations being gpleted as part of the Haddam Neck Plant Switchgear Building l for Appendix R and the changes proposed in our letter dated June 9,1989, j and incorporates these changes into the H STS format. '

Section 3.12, Electrical Power System, which was submitted to the NRC on August 29, 1988, is being revised to reflect the changes discussed in our j letter dated June 9, 1989. It was originally intended that these changes i would be effective prior to the refueling cutage. The NRC Staff recently revised this commitment so it will now coincide with the STS implementation date.

In converting Section 3.12 to the H STS format, the only changes made were l specification numbers, page numbers, and a reference to Specification 6.9.2 is added to Specification 4.8.1.1.3.

Clarifying action statement Nos. 3.8.1.2.b, 3.8.2.2.b. 3.8.3.2.b were added to emphasize that entry into Mode 5 from Mode 6 is not permitted while in a i limiting condition for operation (LCO) as required by H STS 3.0.4. .l In addition, a clarifying note was added to Table 4.3-2(6) to define surveil- f lance tests for level I undervoltage, j i

plSCRIPTION OF CHANGES ADDRESSED IN THE JUNE 9. 1989 LETTER j

1. 348.1.1. Action a. b. c. e Breaker alignment test has been changed from 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

The August 29, 1988 submittal contained a 24-hour surveillance interval l based upon existing administrative procedures. After discussions with the NRC Staff at the March 30,19C9 meeting, it was agreed that a once per 12-hour interval would be utilized. Although the H STS require 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , CYAPC0 believes that the time interval recommended by H STS does not provide enough latitude within an 8-hour shift. In order to avoid a d violation of technical specifications, breaker aligneant checks would (5) J. F. Opeka letter to C. I. lirimes, " Conceptual Design of the New Switchgear Room," dated June 30, 1986.

(6) This table was previously submitted for NRC approval by letter, dated June 23,1989 (previously referenced in this cover letter.)

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, " Attachment 2 B13327/Page 2 have to be performed at exactly the same time interval within each shift or twice per shift. A 12-hour time limit would provide for latitude R within the shift to allow for normal perturbations which could affect the timing of certain activities (i.e., extended shift turnovers or addition-al plant activities requiring attention.) The intent of the M STS 8-hour i

limit is to have the break alignment check performed once per shift. . On October 26, 1988, CYAPC0 submitted an amendment request which proposes to change the definition of once per shift to once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . A 12-hour limit would provide an equivalent degree of protection to meet the intent of the H STS and could be successfully implemented at the Haddam Neck Plant.

It is clear that the change from the 24-hour to 12-hour breaker operabil- l ity surveillance is a more restrictive change. In addition, the above 1 discussion indicates that the 12-hour requirement meets the intent of M STS. .

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2. 3.8.1.1. Action c i i

Time to restore at least one inoperable source has been changed from I 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . I The August 29, 1988 submittal contained a 24-hour requirement based upon-existing administrative procedures. After discussions with the NRC Staff at the March 30,19B? meeting, it was agreed that a 12-hour requirement would be utilized. This 12-hour requirement is in accordance with M STS.

This change from a 24-hour to a 12-hour requirement to restore an inoper-able source is a more restrictive change.

3. 4.8.1.1.2.d.1 e and d Viscosity and flash point surveillance tests were added.

CYAPC0 did not have the equipment to perform these tests at the time of the August 29, 1988 submittal. Since that time, CYAPC0 has procured the equipment. As such, these tests will be included in accordance with M STS.

This proposed change adds a more restrictive surveillance to the Tech-nical Specifications.

4. 4.8.1.1.2.f.1.d The EDG test to reject greater than the largest single load was added.

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B13327/Page 3 The August 29, 1988 submittal did not include this requirement as CYAPCO =

did not perform the specific test contained in .M STS. . However, in discussion with the. NRC Staff during the March 30, '1989 meeting, CYAPC0 stated that' current testing envelopes this~W STS requirement. We agreed to modify the wording and revise the Technical Specifications to include thi3 requirement. This test is in accordance with the intent of W STS.

5. 3.8.2.1.a and b .

f The words "or independent" have been removed.

The words "or independent" wer initially included since the intention was to have a third floating charger that could be used in place or the existing A and B battery specific charger. However, it was-later deter +

mined that the third charger is not safety-related and.therefore cannot.-

be used with the safety-related batteries. CYAPC0 recommended that the words "or independent" be removed. This is-in conformance with the M STS' and is a conservative change.

6. 3.8.2.1-Action The time limit required to restore the DC bus has been changed from-72 to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

The August 29, 1989 submittal proposed the 72-hour requirement based upon l current administrative procedures. After discussions with NRC Staff at the March .30, 1989 meeting,. it was agreed thati a 24-hour" requirement-would be utilized. This 24-hour requirement is.in acccrdance with M STS. 1 This change from a 72-nour to a 24-hour requirement to restore:an inoper- !

able source is'a more restrictive _ change.

7. 4.8.2.1.a.2 I Battery terminal voltage has been changed fhom 125 volts to 129 volts.. i i

The basis for 125-volt: requirement contained in the August 29,;1988 ,

submittal was based upon existing administrative procedures. .This . has - !

been changed to 129 volts which confonns to W STS. .;

8. 3.8.2.2 l

The words "or. independent" have been removed.

The same discussion as Item f5 applies.

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dttachment2 I B13327/Page 4

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9. The words " energize from its associated inverter connected to DC. Bus Nos." were added along with the respective bus number. ;

The additional-wording is necessary.to define the normal bus arrangement as a result of the addition of the new switchgear building. The addi-tional wording is in agreement with the M STS. Specification of inverter and bus requirements are considered more restrictive. ;

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10. 3.8.3.1.o Bus No. IA changed to Bus No. A.

This is a nomenclature change only. There is no safety impact as a l result of this change. ,

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11. 3.8.3.1.h Bus No. IB was changed to Bus No. B.

The same discussion as Item #10 applies.

12. 3.8.?.1 Action c The time limit required to restore the DC bus has changed from 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

The August 29, 1988 letter contained a 72-hour requirement to restore the DCbuswhichwgsgaseduponpresentadministrativeprocedures. Addition-al information, documented the fact that the Haddam Neck design was !

arranged such ihat both DC busses. could be supplied' from one battery during the 77-hour window to allow cell change-out or repair. However, at the March 30, 1989 meeting, the NRC Staff noted that the M STS allow 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for this type of operation rather than 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . CYAPC0 stated that the 2-hour requirement would not >110w enough time to effect ey possible repair. The discussion evolve: to evaluating the requirement 0 a result of the new switchgear building installation. It was noted that sfter the switchgear building was installed, the third non-safety battery would be utilized to Jupply the failed DC division. This would maintain separation teith two separate distinct batteries. It was agreed that 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months would be allowed to restore the safety-related battery, prior to implementation of the appropriate action statement.

(7) This information was provided in Attachment I to the June 9, 1989 (previously referenced in'this cover letter).

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l The change from a 72-hour requirement to a 24-hour requirement for restoration of DC is considered a more restrictive change.

DESCRIPTION OF CHANGES AS A RESVLT OF SWITCHGEAR MODIFICATIONS

1. 3.8.3.1.B.2 AND 3.8.3.2.B f 480 volt Bus No. 11 is being added.

The above technical specification sections list the required operable power supplies for operating and shutdown conditions. The new switchgear building addition which is being installed to meet the requirement of 10CFR50, Appendix R added this additional source of power. The addition j of Bus 11 to technical specifications does not introduce failure modes .

difterent from those previously analyzed for 480V busses, 4, 5, 6, and 7. j Therefore, this change is considered conservative. i

2. 3.8.3.1.e and f. and 3.8.3.2.c

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120 volt AC vital Bus Nos. C1 and D1 are being added. ,

The 120 volt AC vital bus Nos. C1 and D1 are being added as part of the new switchgear building to meet the requirements of 10CFR50, Appendix R. )

C1 and D1 are separate sub-panels from Bus Nos. C and D. These panels contain safe shutdown equipment that is needed to meet 10CFR50, Appendix R. There are no new failure modes and effects introduced by this change.

. Their addition to technical specifications is considered administrative in nature and is consequently conservative. !

3. 3.0.3.a.h and 3.f,.3.2.d 125 volt DC Bus Bx is being added.

The same discussion as Item 14 applies. The addition of this bus will not introduce new failure modes not previously analyzed and is, there-fore, acceptable.

DESCRIPTION OF ADDITIONAL CHA_!E S Two additional changes are being proposed that were not part of the June 9, 1989 letter or the new switchgear building modifications.

1. Clarifying action statement Nos. 3.8.1. 2.b, 3.8.2.2. b, and 3.8.3.2.b, were added to emphasize that entry into Mode 5 from Mode 6 is not permit-ted while in an 1.00 as required by STS 3.0.4.

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Attachment 2 B13327/Page 6 These technical specification statements were added to ensure that this STS. requirement 3.0.4 is not overlooked. The change is administrative in nature and does not impact plant safety.

2. The current surveillance practice to test the Level I undervoltage scheme j as a start-up test has been changed to a monthly Technical Specification

! requirement. The purpose of the note is to define the Trip Actuating I

Device Operational Test requirement for level one undervoltage testing.

Since the testing verifies in<tividual channels, it meets the intent of the M STS and is more restrictive than the previous practice.

Since CYAPCO is moving from a start-up test requirement to a monthly Technical Specification check of each channel, this is considered a-l conservative change with no degradation to plant safety.

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B13327, Proposed Tech Specs Incorporating Proposed Changes Agreed to During 890330 NRC Meeting & Subsequent Conference Calls, Proposed Changes Necessitated by New Switchgear Bldg Mods & Clarification of Level 1 Undervoltage Surveillance Tests

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