Text

Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, DC Electrical Re-Write
	ML16264A488
Person / Time
Site:	Hatch
Issue date:	09/20/2016
From:	Wheat J; Southern Nuclear Operating Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	NL-16-1564
	Download: ML16264A488 (65)
	v • d • e

Justin T. Wheat Nuclear Licensing Manager September 20, 2016 Docket Nos.: 50-321 50-366 Southern Nuclear Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, AL 35242 Tel 205.992.5998 Fax 205.992.7601 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001

~ Southern Nuclear NL-16-1564 Edwin I. Hatch Nuclear Plant Units 1 and 2 Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, "DC Electrical Re-Write" Ladies and Gentlemen:

By letter dated August 11, 2015, Southern Nuclear Operating Company (SNC) submitted a license amendment request (LAR) to revise the Technical Specifications (TS) to adopt TSTF-500, "Direct Current (DC) Electrical Re-Write", for the Edwin I. Hatch Nuclear Plant (HNP) Units 1 and 2.

SNC has answered several correspondences from the Nuclear Regulatory Commission (NRC), including an electronic correspondence from the NRC sent on July 13, 2016. That correspondence was answered by SNC via letter dated August 12, 2016. Several TS changes to LCO sections 3.8.5 and 3.8.6 resulted from the August 12, 2016 letter.

However, SNC indicated it would provide the actual TS changed pages at some future date. This letter provides those pages.

Enclosures 1 and 2 provide the marked-up and clean typed TS pages, respectively.

Clean typed TS pages for LCOs 3.8.7 and 3.8.8 are also included due to changes in the page numbers for section 3.8; there are no substantive changes to LCOs 3.8. 7 or 3.8.8.

For your information, Enclosure 3 provides the marked-up TS Bases pages for LCO B 3.8.5; no Bases changes are needed for B 3.8.6.

These TS and TS Bases pages completely supersede those pages provided to the NRC in the August 11, 2015 letter.

This letter contains no new NRC commitments. If you have any questions contact Ken McElroy at 205.992.7369.

U.S. Nuclear Regulatory Commission NL-16-1564 Page2 Mr. Justin T. Wheat states he is Licensing Manager of Southern Nuclear Operating Company, is authorized to execute this oath on behalf of Southern Nuclear Operating Company and, to the best of his knowledge and belief, the facts set forth in this letter are true.

Respectfully submitted, Justin T. Wheat Nuclear Licensing Manager lac/ocv/JTW Sworn to and subscribed before me this A 0 day of~~

~~~

,2016.

My commission expires: (6, 8, ;)..o( 1

Enclosures:

1. Marked-up Units 1 and 2 TS Pages

2. Clean Typed Units 1 and 2 TS Pages

3. Marked-up Units 1 and 2 TS Bases Pages for LCO B 3.8.5 cc:

Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Executive Vice President & Chief Nuclear Officer Mr. D. R. Vineyard, Vice President-Hatch Mr. M. D. Meier, Vice President-Regulatory Affairs Mr. D. R. Madison, Vice President-Fleet Operations Mr. B. J. Adams, Vice President-Engineering Mr. G. L. Johnson, Regulatory Affairs Manager - Hatch RType: CHA02.004 U. S. Nuclear Regulatorv Commission Ms. C. Haney, Regional Administrator Mr. M. D. Orenak, NRR Project Manager-Hatch Mr. D. H. Hardage, Senior Resident Inspector-Hatch State of Georgia Mr. J. H. Turner, Director-Environmental Protection Division

Edwin I. Hatch Nuclear Plant Units 1 and 2 Revised Technical Specifications Pages for Technical Specifications Revision Request to lmplement-TSTF-500, "DC Electrical Re-Write" Marked-up Units 1 and 2 TS Pages

DC Sources - Shutdown 3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5 DC Sources - Shutdown LCO 3.8.5 The following DC electrical power subsystems shall be OPERABLE:

a.

The Unit 1 DC electrical power subsystems needed to support the DC electrical power distribution subsystem(s) required by LCO 3.8.8, "Distribution Systems - Shutdown"; and

b.

The Unit 2 DG DC electrical power subsystems needed to support the equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System"; and LCO 3.8.2, "AC Sources-Shutdown."

APPLICABILITY:

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One reguired battery A.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months charger on one or more voltage to greater than reguired DG DC or egual to the minimum subsystems inoperable.

established float voltage.

AND AND The redundant reguired DG A.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DC subsystem battery and currents 5 amps.

reguired chargers OPERABLE.

AND A.3 Restore battery 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months charger(s) to OPERABLE status.

(continued) I HATCH UNIT 1 3.8-31 Amendment No.

ACTIONS (continued)

CONDITION B.

One or more reguired batte[Y chargers on one reguired station service DC subsystem inoperable.

AND The redundant reguired station service DC subsystem battery and reguired chargers OPERABLE.

AC. One or more required DG DC electrical power subsystems inoperable for reasons other than Condition A.

OR Reguired Actions and associated Completion Times of Condition A not met HATCH UNIT 1 REQUIRED ACTION B.1 Restore batte[Y terminal voltage to greater than or egual to the minimum established float voltage.

AND B.2 Verify battery float current < 20 amps.

AND B.3 Restore batte[Y charger(s) to OPERABLE status.

AC.1 Declare affected required feature(s) inoperable.

OR AC.2.1 Suspend CORE ALTERATIONS.

AND AC.2.2 Suspend movement of irradiated fuel assemblies in the secondary containment.

AND C.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

3.8-32 DC Sources - Shutdown 3.8.5 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 72 hours Immediately Immediately Immediately Immediately jcontinued)

Amendment No.

ACTIONS (continued)

CONDITION AC. (continued}

D.

One or more reguired station service DC electrical

(;!ower subsystems inoQerable for reasons other than Condition B.

OR Reguired Actions and associated ComQietion Times of Condition B not met HATCH UNIT 1 REQUIRED ACTION AC.a.a IRitiate astieR te SI:IS~eRd e~eFatieRS witl=l a ~eteRtial feF dFaiRiRg tl=le Feastm vessel.

AND AC.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

D.1 Declare affected reguired feature(s}

inoQerable.

OR D.2.1 SusQend CORE ALTERATIONS.

AND D.2.2 Sus(;!end movement of irradiated fuel assemblies in the secondary containment.

AND D.2.3 Initiate action to sus12end OQerations with a QOtential for draining the reactor vessel.

AND D.2.4 Initiate action to restore reguired DC electrical

(;!Ower subsystems to OPERABLE status.

3.8-33 DC Sources - Shutdown 3.8.5 COMPLETION TIME Immediately Immediately Immediately Immediately Immediately Immediately Immediately Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE DC Sources-Shutdown 3.8.5 FREQUENCY SA 3.8.5.1

NC>TE----------------------------

The following SRs are not required to be performed: SA 3.8.4.7-£_and SA 3.8.4.~.

For required Unit 1 DC sources, the following SRs are applicable:

SA 3.8.4.1 SR 3.8.4.4 SR 3.8.4.7

_______ SA 3.8.4.2 SA 3.8.4.3 SR 3.8.4.5 SR 3.8.4.6 SR 3.8.4.8.

SA 3.8.5.2 HATCH UNIT 1 For required Unit 2 DC sources, SA 3.8.5.1 of Unit 2 Specification 3.8.5 is applicable.

3.8-34 In accordance with applicable SRs In accordance with Unit 2 SA 3.8.5.1 Amendment No.

3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery GeJI-Parameters Battery GeJI-Parameters 3.8.6 LCO 3.8.6 Battery seJ4>arameters for the station service and DG electrical power subsystem batteries shall be within tAe-Iimits of TaBle a.8.e 1.

APPLICABILITY:

When associated DC electrical power subsystem is required to be OPERABLE.

ACTIONS

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

Separate Condition entry is allowed for each battery.

CONDITION REQUIRED ACTION A.

One or more Batteries with PtAr.=~.11--'v-./oEHF::tfif~Y-' api'*'loH-t-GGEHOif-BI's one or more Battery ooll olootrolyte I oval and parameters not within float voltage meet Category A or 8 limits.

TaBle a.8.e 1 Category C limits.

A.2

'leriJy Battery sell parameters meet TaBle a.8.e 1 Category C limits.

COMPLETION TIME 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 24 hours Onoo per 7 days thereafter A.a Restore Battery sell a1 days parameters to Category A and 8 limits of TaBle a.8.e 1.

(continued)

HATCH UNIT 1 3.8-33 Amendment No. 227 I

ACTIONS (continued}

CONDITION A. One DG or station service battery on one subsystem with one or more battery cells float voltage< 2.07 V.

B. One DG battery on one subsystem with float current

> 5 amps.

C. One station service batterv on one subsystem with float current > 20 amps.

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

Reguired Action D.2 shall be completed if electrolyte level was below the top of plates.

D. ()ne DG or station service battery on one subsystem with one or more cells electrolyte level less than minimum established design limits.

HATCH UNIT 1 REQUIRED ACTION A.1 Perform SR 3.8.4.1.

AND A.2 Perform SR 3.8.6.1.

AND A.3 Restore affected cell voltage > 2.07 V.

B.1 Perform SR 3.8.4.1.

AND B.2 Restore battery float current to < 5 amps.

C.1 Perform SR 3.8.4.1.

AND C.2 Restore battery float current to < 20 amps.

N()TE-----------------

Reguired Actions D.1 and D.2 are only applicable if electrolvte level was below the top of plates.

D.1 Restore electrolyte level to above top of plates.

AND D.2 Verify no evidence of leakage.

AND D.3 Restore electrolvte level to areater than or eaual 3.8-34 Battery Geli-Parameters 3.8.6 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2 hours 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 8 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 31 days Amendment No. 200 I

E. One DG or station service battery on one subsystem with gilot cell electrolyte temgerature less than minimum established design limits.

F. One or more batteries in redundant subsystems with battery garameters not within limits.

SG. Required Action and associated Completion Time of Condition A~

D. E. or F not met.

OR One DG battery on one subsystem with one or more battery cells float voltage < 2.07 V and float current > 5 amgs.

OR One station service battery on one subsystem with one or more battery cells float voltage :s; 2.07 V and float current > 20 amgs.

GRe eF meFe 13~eFies witl=t

~IBFa§e elestFelyte temt:JeFati:IFe ef tl=te FBt:JFeseRtative sells Ret witl=tiR limits.

GR GRe eF meFe 13~eFies witl=t eRe eF meFe 13~eFY sell t:JaFameteFs Ret "1itl=tiR r".. ~

1" lil'Y'lit<>-

HATCH UNIT 1 to minimum established design limits.

E.1 Restore battery gilot cell temgerature to greater than or egual to minimum established design limits.

F.1 Restore battery garameters for batteries in one subsystem to within limits.

8 G.1 Declare associated battery inoperable.

3.8-35 Battery Geli-Parameters 3.8.6 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours Immediately Amendment No. aee I

SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.6.1 Verify battery sell parameters meet Table 3.8.6 1 Category A limits.

SR 3.8.6.2 Verify battery sell parameters meet Table 3.8.6 1 Category 8 limits.

SR 3.8.6.3 Verify a1Jerage elestrolyte temperat1:1re of represeRtative sells is Cit 66°F for easl=t statioR servise battery, aRe Cit 4Q°F for easl=t DG battery.

SR 3.8.6.1

N()TE-----------------------------

Not reguired to be met when batte!Y terminal voltage is less than the minimum established float voltage of SR 3.8.4.1.

Verif~ each DG batte!Y float current is< 5 am12s and each station service batter~ float current is <

20 am[2s.

SR 3.8.6.2 Verif~ each DG and each station service batte!Y

[2ilot cell float voltage is> 2.07 V.

SR 3.8.6.3 Verif~ each DG and each station service batte!Y connected cell electrolyte level is oreater than or HATCH UNIT 1 3.8-36 Battery Geii-Parameters 3.8.6 FREQUENCY IR asseraaRse witl=t tl=te SI:IF¥eillaRse Freql:leRsy CoRtrol Program IR assoraaRse 'Nitl=t tl=te SI:IF¥eillaRse Freql:leRsy CoRtrol Program ANI;)

0Rse '*Yitl=tiR 24 1=to1:1rs after battery 0 1Jersl=targe

. 16Q 'I IR asseraaRse witl=t tl=te SI

IF¥eillaRse Freql

leRsy CoRtrol Program In accordance with the Surveillance Freguenc~ Control Program In accordance with the Surveillance Freguenc~ Control Program In accordance with the Surveillance Amendment No. 2ee I

SA 3.8.6.4 SA 3.8.6.5 SA 3.8.6.6 HATCH UNIT 1 equal to minimum established design limits.

Verify each DG and each station service battery pilot cell temperature is greater than or equal to minimum established design limits.

Verify each DG and each station service battery connected cell float voltage is> 2.07 V.

~()liE:-----------------------------

llhis Surveillance shall not normally be performed in MODE: 1. 2, or 3. However. credit may be taken for unplanned events that satisfy this SR.

Verify DG and station service battery capacity is >

80% of the manufacturer's rating when subjected to a performance discharge test or a modified performance discharge test.

3.8-37 Battery Ge>>-Parameters 3.8.6 Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program 12 months when battery shows degradation or has reached 85% of expected life with capacity < 1 00% of manufacturer's rating 24 months when battery has reached 85% of expected life with capacity ~ 1 00% of manufacturer's rating Amendment No. 200 I

~.A.R.A,METeR Electrolyte Le'lel P:loat Voltage Speoifio Grai~*~

Table 3.8.8 1 (page 1 of 1)

Battery Cell PaFameter Requirements GA+eGGR¥A:

GATeGGR¥8:

biMITS FGR eAGI=4 biMITS FGR eAGI=4 QeSIGNA+eQ ~lbGT Gebb GGNNeGTeQ Gebb

.. Minimum le'lel insioation

.. Minimum le11BI mark, ans ~ 1/4 inoh insioation mark, ans abo'le m~imum le'lel

$:. 1/4 inoh abo11e insioation markW m~imum le11el insioation markw

~ a.1a v

~ 1.agg

it 1.195 AN9 A'leFage of all oonneotes sells

.. 1.ags Battery GeU-Parameters 3.8.6 GA+eGGR¥G

LIMITS FGR EAGI=4 GGNNeGTeQ Gebb Abo'Je top of plates, ans not 0'19rfiO'Ning

.. a.Q7V Not more than Q.QaQ below average of all oonneotes sells AN9 h1erage of all oonneotes sells

!~; 1.195 (a)

It is aooeptable for the electrolyte le'lel to tompoFarily increase abo'Jo tho specifies maximum lo'lol suring equalizing ohargos pro'lises it is not o'lorflowing.

(b)

Correotes for olootrolyte tempeFaturo ans IO'IOI. Le'lel oorrootion is not requires; howo'lor, 'Nhen on float ohargo battery charging is < 1 amp for station sorvioe batteries ans < Q.5 amp for DG batteries.

(o)

A battery charging ourront of < 1 amp for station service batteries ans < Q.5 amp for DG batteries when on float ohargo is aooeptable for meeting spooifio gravity limits following a battery roohargo, for a maximum of 7 says. When charging current is uses to satisfy speoifio gravity requirements, speoifio gravity of eaoh oonnootos oell shall be measures prior to expiration of tho 7 say allowance.

HATCH UNIT 1 3.8-38 Amendment No. 227 I

DC Sources - Shutdown 3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5 DC Sources - Shutdown LCO 3.8.5 The following DC electrical power subsystems shall be OPERABLE:

a.

The Unit 2 DC electrical power subsystems needed to support the DC electrical power distribution subsystem(s) required by LCO 3.8.8, "Distribution Systems - Shutdown"; and

b.

The Unit 1 DG DC electrical power subsystems needed to support the equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System"; and LCO 3.7.4, "Main Control Room Environmental Control (MCREC) System";

LCO 3.7.5, "Control Room Air Conditioning (AC) System"; and LCO 3.8.2, "AC Sources-Shutdown."

APPLICABILITY:

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One reguired battery A.1 Restore batter~ terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months charger on one or more voltage to greater than reguired DG DC or egual to the minimum subs~stems inoperable.

established float voltage.

AND AND The redundant reguired DG A.2 Verif~ battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DC subs~stem battery and current < 5 amps.

reguired chargers OPERABLE.

AND A.3 Restore battery 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months charger(s) to OPERABLE status.

(continued) I HATCH UNIT2 3.8-31 Amendment No.

ACTIONS (continued)

CONDITION B.

One or more reguired battery chargers on one reguired station service DC subsystem inoperable.

AND The redundant reguired station service DC subsystem battery and reguired chargers OPERABLE.

AC. One or more required DG DC electrical power subsystems inoperable for reasons other than Condition A.

OR Reguired Actions and associated Completion Times of Condition A not met.

HATCH UNIT2 REQUIRED ACTION B.1 Restore battery terminal voltage to greater than or egual to the minimum established float voltage.

AND B.2 Verify battery float current~ 20 amps.

AND B.3 Restore battery charger(s) to OPERABLE status.

AC.1 Declare affected required feature(s) inoperable.

OR AC.2.1 Suspend CORE ALTERATIONS.

AND AC.2.2 Suspend movement of irradiated fuel,

assemblies in the secondary containment.

AND C.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

3.8-32 DC Sources - Shutdown 3.8.5 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 72 hours Immediately Immediately Immediately Immediately (continued)

Amendment No.

ACTIONS (continued)

CONDITION AC. (continued)

D.

One or more reguired station service DC electrical gower subs~stems inogerable for reasons other than Condition B.

OR Reguired Actions and associated Comgletion Times of Condition B not met.

HATCH UNIT2 REQUIRED ACTION AC.2.3 IRitiate astieR te SI:JSj:)eRd epeFatieRS witl=l a peteRtial feF dFaiRiRg tl=le Feastm vessel.

AND AC.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

D.1 Declare affected reguired feature(s) inogerable.

OR D.2.1 Susgend CORE ALTERATIONS.

AND D.2.2 Susgend movement of irradiated fuel assemblies in the secondary containment.

AND D.2.3 Initiate action to susgend ogerations with a gotential for draining the reactor vessel.

AND D.2.4 Initiate action to restore reguired DC electrical gower subs~stems to OPERABLE status.

3.8-33 DC Sources-Shutdown 3.8.5 COMPLETION TIME Immediately Immediately Immediate!~

Immediate!~

Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE DC Sources - Shutdown 3.8.5 FREQUENCY SA 3.8.5.1

NC>TE----------------------------

The following SRs are not required to be performed: SA 3.8.4.7-g_and SA 3.8.4.~.

For required Unit 2 DC sources, the following SRs are applicable:

SA 3.8.4.1 SR 3.8.4.4 SR 3.8.4.7

_______ SA 3.8.4.2 SR 3.8.4.3 SR 3.8.4.5 SR 3.8.4.6 SR 3.8.4.8.

SA 3.8.5.2 HATCH UNIT2 For required Unit 1 DC sources, SA 3.8.5.1 of Unit 1 Specification 3.8.5 is applicable.

3.8-34 In accordance with applicable SRs In accordance with Unit 1 SA 3.8.5.1 Amendment No.

3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery GeU-Parameters Battery GeU-Parameters 3.8.6 LCO 3.8.6 Battery cell parameters for the station service and DG electrical power subsystem batteries shall be within tAe-limits of Table 3.8.9 1.

APPLICABILITY:

When associated DC electrical power subsystem is required to be OPERABLE.

ACTIONS

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

Separate Condition entry is allowed for each battery.

CONDITION REQUIRED ACTION A.

One or more batteries with MAr.-.1t---->~V-eeHrifFYyc;:pmil~otHG:.t:emii'S's one or more battery sell electrolyte level and parameters not within float voltage meet Category A or 8 limits.

Table 3.8.9 1 Category C limits.

A.2 Verify battery sell parameters meet Table 3.8.9 1 Category C limits.

COMPLETION TIME 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 24 hours Onse per 7 days thereafter A.3 Restore battery sell 31 days parameters to Category A and 8 limits of Table 3.8.9 1.

(continued)

HATCH UNIT2 3.8-33 Amendment No. ~ I

ACTIONS (continued)

CONDITION A. One DG or station service batte[Y on one subsystem with one or more batte[Y cells float voltage ~ 2.07 V.

B. One DG batte[Y on one subsystem with float current

> 5 amps.

C. One station service batte[Y on one subsystem with float current> 20 amps.

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

Reguired Action D.2 shall be completed if electrolvte level was below the top of plates.

D. One DG or station service batte[Y on one subsystem with one or more cells electrolyte level less than minimum established design limits.

HATCH UNIT2 REQUIRED ACTION A.1 Perform SR 3.8.4.1.

AND A.2 Perform SR 3.8.6.1.

AND A.3 Restore affected cell voltage > 2.07 V.

B.1 Perform SR 3.8.4.1.

AND B.2 Restore batte[Y float current to s 5 amps.

C.1 Perform SR 3.8.4.1.

AND C.2 Restore batte[Y float current to < 20 amps.

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

Reguired Actions D.1 and D.2 are only applicable if electrolvte level was below the top of plates.

D.1 Restore electrolyte level to above top of plates.

AND D.2 Verify no evidence of leakage.

AND D.3 Restore electrolvte level to areater than or eaual 3.8-34 Battery GeU-Parameters 3.8.6 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2 hours 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 8 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 31 days Amendment No. 2-+G I

E. One DG or station service battery on one subsystem with Qilot cell electrolvte temQerature less than minimum established design limits.

F. One or more batteries in redundant subsystems with battery Qarameters not within limits.

8 G. Required Action and associated Completion Time of Condition A~

D. E. or F not met.

OR One DG battery on one subsystem with one or more battery cells float voltage :::; 2.07 V and float current > 5 amQs.

OR One station service battery on one subsystem with one or more battery cells float voltage < 2.07 V and float current > 20 amQs.

GRe eF meFe batteFies witl=l atiBFaJB elestFGiyte tBmi3BFati:::IFB sf tAB FB13FBSBRtatiVB cells Ret witl=liR limits.

GR GRe eF meFe batteFies with 9RB 9F meFB batlBfY cell 13ar:ameteFS Ret witl=liR

,... a;...,;+.,.

HATCH UNIT2 to minimum established design limits.

E.1 Restore battery Qilot cell temQerature to greater than or egual to minimum established design limits.

F.1 Restore battery Qarameters for batteries in one subsystem to within limits.

8 G.1 Declare associated battery inoperable.

3.8-35 Battery GeU-Parameters 3.8.6 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours Immediately Amendment No. ~ I

SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.6.1 Verif.y battery sell parameters meet Table 3.8.6 1 Category A limits.

SR 3.8.6.2 Verif.y battery sell parameters meet Table 3.8.6 1 Category B limits.

SR 3.8.6.3 Verify average electrolyte temperat~:~re of represeRtative sells is~ 6a°F #or easl=l statioR service battery, aRel ~ 4Q°F #or easl=l DG battel)'.

SR 3.8.6.1

N()liE-----------------------------

Not reguired to be met when battery terminal voltage is less than the minimum established float voltage of SR 3.8.4.1.

Verify each DG battery float current is < 5 am12s and each station service battery float current is <

20 am12s.

SR 3.8.6.2 Verify each DG and each station service battery 12ilot cell float voltage is> 2.07 V.

SR 3.8.6.3 Verify each DG and each station service battery connected cell electrolyte level is Qreater than or HATCH UNIT2 3.8-36 Battery Geii-Parameters 3.8.6 FREQUENCY IR asserelaRse witl=l tl=le S~:~rveillaRse Freq~:~eRsy CoRtrol

~rogram IR assorelaRse 'Nitl=l tl=le S~:~rveillaRse Freq~:~eRsy CoRtrol Program ANt)

GRse witl=liR 24 l=lo~:~rs after battel)' overcharge

. 1aQ v IR assorelaRse witl=l tl=le S~

~rveillaRse Freq~: ~eRsy CoRtrol Program In accordance with the Surveillance Freguency Control Program In accordance with the Surveillance Freguency Control Program In accordance with the Surveillance Amendment No. 2-+G I

SA 3.8.6.4 SA 3.8.6.5 SA 3.8.6.6 HAliCH UNill 2 equal to minimum established design limits.

Verify each DG and each station service battery pilot cell temperature is greater than or equal to minimum established design limits.

Verify each DG and each station service battery connected cell float voltage is > 2.07 V.

~()liE:-----------------------------

llhis Surveillance shall not normally be performed in M()DE: 1, 2, or 3. However, credit may be taken for unplanned events that satisfy this SR.

Verify DG and station service battery capacity is >

80% of the manufacturer's rating when subjected to a performance discharge test or a modified performance discharge test.

3.8-37 Battery GeU-Parameters 3.8.6 Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program 12 months when battery shows degradation or has reached 85% of expected life with capacity < 1 00% of manufacturer's rating 24 months when battery has reached 85% of expected life with capacity ;:: 1 00% of manufacturer's rating Amendment No. 2+G I

F2.A,RAMETeR Electrolyte Level

~loat Voltage Specific Gra' 1i~'~

'J Table 3.8.6 1 (page 1 of 1)

Battery Cell Parameter Requirements GAT!;;GGR¥A:

GA+eGGR¥8:

liMITS ~GR eAGj..~

liMITS ~GR e.O.Gj..~

QeSIGNA+eQ PlbGT Gell GGNNeGTeQ Gell

. Minimum le11el inaication

,.. Minimum level mark, ana~ 1/4 inch inaication mark, ana above m~imum level

~ 1/4 inch abo11e inaication markw m~imum le11el inaication markW d!! 2.13 v 0!2.13 v 0!1.2QQ 0!1.195 ANI}

~Nerago of all connoctea cells

... 1.2Q5 Battery Geii-Parameters 3.8.6 GA+eGGR¥G:

liMITS

~GR EAGj..~

GGNNeGTeQ Gi;;lb Ab011e top of plates, ana not o'lerflo~o*.,ing

.. 2.Q7V Not more than Q.Q2Q beiOIJ.I average of all connectea cells ANI}

A'lerage of all connectea cells d!! 1.195 (a)

It is acceptable for the electrolyte le11el to temporarily increase abo11e the specifies maximum level suring equali2ing charges pro11i9e9 it is not o11ertlowing.

(b)

Correctea for electrolyte temperature ana lo11el. Le11el correction is not requires; however, when on float charge battery charging is < 1 amp for station sePiice batteries ana < Q.5 amp for DG batteries.

(c)

A battery charging current of < 1 amp for station sePiice batteries ana < Q.5 amp for DG batteries when on float charge is acoeptablo for meeting specific gravity limits follmving a battery recharge, for a maximum of 7 says. When charging current is usee to satisfy specific gravit}* requirements, specific gravity of each connectea cell shall be measures prior to eMpiration of the 7 aay allowance.

HATCH UNIT2 3.8-38 Amendment No. 2-1-Q I

Edwin I. Hatch Nuclear Plant Units 1 and 2 Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, "DC Electrical Re-Write" Clean Typed Units 1 and 2 TS Pages

DC Sources - Shutdown 3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5 DC Sources - Shutdown LCO 3.8.5 The following DC electrical power subsystems shall be OPERABLE:

a.

The Unit 1 DC electrical power subsystems needed to support the DC electrical power distribution subsystem(s) required by LCO 3.8.8, 11Distribution Systems - Shutdown~~; and

b.

The Unit 2 DG DC electrical power subsystems needed to support the equipment required to be OPERABLE by LCO 3.6.4.3, 11Standby Gas Treatment (SGT) Systemu; and LCO 3.8.2, 11AC Sources - Shutdown.~~

APPLICABILITY:

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One required battery A.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months charger on one or more voltage to greater than required DG DC or equal to the minimum subsystems inoperable.

established float voltage.

AND AND The redundant required DG A.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DC subsystem battery and current s 5 amps.

required chargers OPERABLE.

AND A.3 Restore battery 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months charger(s) to OPERABLE status.

(continued)

HATCH UNIT 1 3.8-31 Amendment No.

ACTIONS (continued)

CONDITION B.

One or more required battery chargers on one required station service DC subsystem inoperable.

AND The redundant required station service DC subsystem battery and required chargers OPERABLE.

c.

One or more required DG DC electrical power subsystems inoperable for reasons other than Condition A.

OR Required Actions and associated Completion Times of Condition A not met HATCH UNIT 1 REQUIRED ACTION B.1 Restore battery terminal voltage to greater than or equal to the minimum established float voltage.

AND B.2 Verify battery float currents 20 amps.

AND B.3 Restore battery charger(s) to OPERABLE status.

C.1 Declare affected required feature(s) inoperable.

OR C.2.1 Suspend CORE ALTERATIONS.

AND C.2.2 Suspend movement of irradiated fuel assemblies in the secondary containment.

AND C.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

3.8-32 DC Sources - Shutdown 3.8.5 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 72 hours Immediately Immediately Immediately Immediately (continued)

Amendment No.

ACTIONS (continued)

CONDITION

c.

(continued)

D.

One or more required station service DC electrical power subsystems inoperable for reasons other than Condition B.

OR Required Actions and associated Completion Times of Condition B not met HATCH UNIT 1 REQUIRED ACTION AND C.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

D.1 Declare affected required feature(s) inoperable.

OR D.2.1 Suspend CORE ALTERATIONS.

AND D.2.2 Suspend movement of irradiated fuel assemblies in the secondary containment.

AND D.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

AND D.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

3.8-33 DC Sources - Shutdown 3.8.5 COMPLETION TIME Immediately Immediately Immediately Immediately Immediately Immediately Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE DC Sources - Shutdown 3.8.5 FREQUENCY SR 3.8.5.1

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

SR 3.8.5.2 HATCH UNIT 1 The following SRs are not required to be performed: SR 3.8.4.2 and SR 3.8.4.3.

For required Unit 1 DC sources, the following SRs are applicable:

SR 3.8.4.1 SR 3.8.4.2 SR 3.8.4.3 For required Unit 2 DC sources, SR 3.8.5.1 of Unit 2 Specification 3.8.5 is applicable.

3.8-34 In accordance with applicable SRs In accordance with Unit 2 SR 3.8.5.1 Amendment No.

3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery Cell Parameters Battery Parameters 3.8.6 LCO 3.8.6 Battery parameters for the station service and DG electrical power subsystem batteries shall be within limits.

APPLICABILITY:

When associated DC electrical power subsystem is required to be OPERABLE.

ACTIONS

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

Separate Condition entry is allowed for each battery.

CONDITION A.

One DG or station service A.1 battery on one subsystem with one or more battery AND cells float voltage s 2.07 V.

A.2 AND A.3 B.

One DG battery on one B.1 subsystem with float current > 5 amps.

AND B.2

c.

One station service battery C.1 on one subsystem with float current > 20 amps.

AND C.2 HATCH UNIT 1 REQUIRED ACTION Perform SR 3.8.4.1.

Perform SR 3.8.6.1.

Restore affected cell voltage> 2.07 V.

Perform SR 3.8.4.1.

Restore battery float current to s 5 amps.

Perform SR 3.8.4.1.

Restore battery float current to s 20 amps.

3.8-35 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2 hours 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (contmued)

Amendment No.

ACTIONS (continued)

CONDITION

NOTE Required Action D.2 shall be completed if electrolyte level was below top of plates.

D.

One DG or station service battery on one subsystem with one or more cells electrolyte level less than minimum established design limits.

E.

One DG or station service battery on one subsystem with pilot cell electrolyte temperature less than minimum established design limits.

F.

One or more batteries in redundant subsystems with battery parameters not within limits.

HATCH UNIT 1 REQUIRED ACTION

NOTE------

Required Actions D.1 and D.2 are only applicable if electrolyte level was below the top of plates.

D.1 Restore electrolyte level to above top of plates.

AND D.2 Verify no evidence of leakage.

AND D.3 Restore electrolyte level to greater than or equal to minimum established design limits.

E.1 Restore battery pilot cell temperature to greater than or equal to minimum established design limits.

F.1 Restore battery parameters for batteries in one subsystem to within limits.

3.8-36 Battery Parameters 3.8.6 COMPLETION TIME 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 12 hours 31 days 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours (contmued)

Amendment No.

ACTIONS (continued)

CONDITION G.

Required Action and associated Completion Time of Condition A. B, C, D, E, or F not met.

One DG battery on one subsystem with one or more battery cells float voltage s 2.07 V and float current > 5 amps.

One station service battery on one subsystem with one or more battery cells float voltage s 2.07 V and float current > 20 amps.

SURVEILLANCE REQUIREMENTS G.1 REQUIRED ACTION Declare associated battery inoperable.

SURVEILLANCE SR 3.8.6.1 SR 3.8.6.2 HATCH UNIT 1

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

Not required to be met when battery terminal voltage is less than the minimum established float voltage of SR 3.8.4.1.

Verify each DG battery float current is s 5 amps and each station service battery float current is S20 amps.

Verify each DG and each station service battery pilot cell float voltage is > 2.07 V.

3.8-37 Battery Parameters 3.8.6 COMPLETION TIME Immediately FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program (continued)

Amendment No.

SURVEILLANCE REQUIREMENTS (continued)

SR 3.8.6.3 SR 3.8.6.4 SR 3.8.6.5 SR 3.8.6.6 HATCH UNIT 1 SURVEILLANCE Verify each DG and each station service battery connected cell electrolyte level is greater than or equal to minimum established design limits.

Verify each DG and each station service battery pilot cell temperature is greater than or equal to minimum establis_hed design limits.

Verify each DG and each station service battery connected cell float voltage is> 2.07 V.

NOTE-------

This Surveillance shall not normally be performed in MODE 1, 2, or 3. However, credit may be taken for unplanned events that satisfy this SR.

Verify DG and station service battery capacity is

~ 80% of the manufacturer's rating when subjected to a performance discharge test or a modified performance discharge test.

3.8-38 Battery Parameters 3.8.6 FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program (continued)

Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.6.6 (continued)

HATCH UNIT 1 3.8-39 Battery Parameters 3.8.6 FREQUENCY 12 months when battery shows degradation or has reached 85% of expected life with capacity < 1 00% of manufacturer's rating 24 months when

battery has reached 85% of expected life with capacity > 1 00%

of manufacturer's rating Amendment No.

Distribution Systems - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Distribution Systems-Operating LCO 3.8.7 APPLICABILITY:

ACTIONS The following AC and DC electrical power distribution subsystems shall be OPERABLE:

a.

Unit 1 AC and DC electrical power distribution subsystems comprised of:

1.

4160Vessential buses 1E, 1F, and 1G;

2.

600 V essential buses 1 C and 1 D;

3.

120/208 V essential cabinets 1A and 1B;

4.

120/208 V instrument buses 1A and 1B;

5.

125/250 V DC station service buses 1A and 1B;

6.

DG DC electrical power distribution subsystems;

7.

Critical Instrumentation Buses 1A and 1B; and

b.

Unit 2 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGn System," and LCO 3.8.1, "AC Sources-Operating."

MODES 1, 2, and 3.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more required Unit 2 AC or DC electrical power distribution subsystems inoperable.

HATCH UNIT 1 A.1 Restore required Unit 2 AC and DC subsystem(s) to OPERABLE status.

3.8-40

?days (continued)

Amendment No.

ACTIONS (continued)

CONDITION B.

One or more (Unit 1 or B.1 swing bus) DG DC electrical power distribution subsystems inoperable.

c.

One or more (Unit 1 or C.1 swing bus) AC electrical power distribution subsystems inoperable.

D.

One Unit 1 station service D.1 DC electrical power distribution subsystem inoperable.

E.

Required Action and E.1 associated Completion Time of Condition A, B, C, AND or D not met.

E.2 F.

Two or more electrical F.1 power distribution subsystems inoperable that result in a loss of function.

HATCH UNIT 1 Distribution Systems - Operating 3.8.7 REQUIRED ACTION COMPLETION TIME Restore DG DC 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months electrical power distribution subsystem AND to OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months power distribution subsystem to AND OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Restore Unit 1 station 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months service DC electrical power distribution AND subsystem to OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Be in MODE 3.

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Be in MODE4.

36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months Enter LCO 3.0.3.

Immediately 3.8-41 Amendment No.

Distribution Systems - Operating 3.8.7 SURVEILLANCE REQUIREMENTS SR 3.8.7.1 HATCH UNIT 1 SURVEILLANCE Verify correct breaker alignments and voltage to required AC and DC electrical power distribution subsystems.

3.8-42 FREQUENCY In accordance with the Surveillance Frequency Control Program Amendment No.

Distribution Systems - Shutdown 3.8.8 3.8 ELECTRICAL POWER SYSTEMS 3.8.8 Distribution Systems - Shutdown LCO 3.8.8 APPLICABILITY:

ACTIONS The necessary portions of the following AC and DC electrical power distribution subsystems shall be OPERABLE:

a.

The Unit 1 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE; and

b.

The Unit 2 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System," and LCO 3.8.2, "AC Sources-Shutdown."

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more required AC or DC electrical power distribution subsystems inoperable.

HATCH UNIT 1 A.1 OR Declare associated supported required feature(s) inoperable.

A.2.1 Suspend CORE ALTERATIONS.

AND Immediately Immediately A.2.2 Suspend handling of Immediately irradiated fuel assemblies in the secondary containment.

(continued) 3.8-43 Amendment No. I

ACTIONS Distribution Systems - Shutdown 3.8.8 CONDITION REQUIRED ACTION COMPLETION TIME A.

(continued)

A.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

Immediately A.2.4 Initiate actions to Immediately restore required AC and DC electrical power distribution subsystem(s) to OPERABLE status.

A.2.5 Declare associated required shutdown cooling subsystem(s) inoperable and not in operation.

Immediately SURVEILLANCE REQUIREMENTS SR 3.8.8.1 HATCH UNIT 1 SURVEILLANCE Verify correct breaker alignments and voltage to required AC and DC electrical power distribution subsystems.

3.8-44 FREQUENCY In accordance with the Surveillance Frequency Control Program Amendment No. I

DC Sources - Shutdown 3.8.5 3.8 ELECTRICAL POWER SYSTEMS 3.8.5 DC Sources - Shutdown LCO 3.8.5 The following DC electrical power subsystems shall be OPERABLE:

a.

The Unit 2 DC electrical power subsystems needed to support the DC electrical power distribution subsystem(s) required by LCO 3.8.8, "Distribution Systems-Shutdown"; and

b.

The Unit 1 DG DC electrical power subsystems needed to support the equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System"; and LCO 3.7.4, "Main Control Room Environmental Control (MCREC) System";

LCO 3.7.5, "Control Room Air Conditioning (AC) System"; and LCO 3.8.2, "AC Sources-Shutdown."

APPLICABILITY:

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.

One required battery A.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months charger on one or more voltage to greater than required DG DC or equal to the minimum subsystems inoperable.

established float voltage.

AND AND The redundant required DG A.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DC subsystem battery and current s 5 amps.

required chargers OPERABLE.

AND A.3 Restore battery 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months charger(s) to OPERABLE status.

(continued) I HATCH UNIT2 3.8-31 Amendment No.

ACTIONS (continued)

CONDITION B.

One or more required battery chargers on one required station service DC subsystem inoperable.

AND The redundant required station service DC subsystem battery and required chargers OPERABLE.

c.

One or more required DG DC electrical power subsystems inoperable for reasons other than Condition A.

OR Required Actions and associated Completion Times of Condition A not met.

HATCH UNIT2 REQUIRED ACTION B.1 Restore battery terminal voltage to greater than or equal to the minimum established float voltage.

AND B.2 Verify battery float current s 20 amps.

AND B.3 Restore battery charger(s) to OPERABLE status.

C.1 Declare affected required feature(s) inoperable.

OR C.2.1 Suspend CORE ALTERATIONS.

AND C.2.2 Suspend movement of irradiated fuel assemblies in the secondary containment.

AND C.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

3.8-32

/

DC Sources - Shutdown 3.8.5 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 72 hours Immediately Immediately Immediately Immediately (continued)

Amendment No.

ACTIONS (continued)

CONDITION

c.

(continued)

D.

One or more required station service DC electrical power subsystems inoperable for reasons other than Condition B.

OR Required Actions and associated Completion Times of Condition B not met.

HATCH UNIT2 REQUIRED ACTION AND C.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

D.1 Declare affected required feature(s) inoperable.

OR D.2.1 Suspend CORE ALTERATIONS.

AND D.2.2 Suspend movement of irradiated fuel assemblies in the secondary containment.

AND D.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

AND D.2.4 Initiate action to restore required DC electrical power subsystems to OPERABLE status.

3.8-33 DC Sources - Shutdown 3.8.5 COMPLETION TIME Immediately Immediately Immediately Immediately Immediately Immediately Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE DC Sources - Shutdown 3.8.5 FREQUENCY SA 3.8.5.1

NC>TE----------------------------

SR 3.8.5.2 HATCH UNIT2 The following SRs are not required to be performed: SR 3.8.4.2 and SR 3.8.4.3.

For required Unit 2 DC sources, the following SRs are applicable:

SA 3.8.4.1 SA 3.8.4.2 SA 3.8.4.3 For required Unit 1 DC sources, SA 3.8.5.1 of Unit 1 Specification 3.8.5 is applicable.

3.8-34 In accordance with applicable SRs In accordance with Unit 1 SA 3.8.5.1 Amendment No.

3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery Parameters Battery Parameters 3.8.6 LCO 3.8.6 Battery cell parameters for the station service and DG electrical power subsystem batteries shall be within limits.

APPLICABILITY:

When associated DC electrical power subsystem is required to be OPERABLE.

ACTIONS NOTE--

Separate Condition entry is allowed for each battery.

CONDITION REQUIRED ACTION A.

One DG or station service A.1 Perform SR 3.8.4.1.

battery on one subsystem with one or more battery AND cells float voltages; 2.07 V.

A.2 Perform SR 3.8.6.1.

AND A.3 Restore affected cell voltage > 2.07 V.

B.

One DG battery on one B.1 Perform SR 3.8.4.1.

subsystem with float current > 5 amps.

AND B.2 Restore battery float current to s; 5 amps.

c.

One station service battery C.1 Perform SR 3.8.4.1.

on one subsystem with float current > 20 amps.

AND C.2 Restore battery float current to s; 20 amps.

HATCH UNIT2 3.8-35 COMPLETION TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2 hours 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

Amendment No.

ACTIONS (continued)

CONDITION

NOTE Required Action D.2 shall be completed if electrolyte level was below the top of plates.

D.

One DG or station service battery on one subsystem with one or more cells electrolyte level less than minimum established design limits.

E.

One DG or station service battery on one subsystem with pilot cell electrolyte temperature less than minimum established design limits.

F.

One or more batteries in redundant subsystems with battery parameters not within limits.

HATCH UNIT 2 REQUIRED ACTION

NOTE-------

Required Actions D.1 and D.2 are only applicable if electrolyte level was below the top of plates.

D.1 Restore electrolyte level to above top of plates.

AND D.2 Verify no evidence of leakage.

AND D.3 Restore electrolyte level to greater than or equal to minimum established design limits.

E.1 Restore battery pilot cell temperature to greater than or equal to minimum established design limits.

F.1 Restore battery parameters for batteries in one subsystem to within limits.

3.8-36 Battery Parameters 3.8.6 COMPLETION TIME 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 12 hours 31 days 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours (continued)

Amendment No.

ACTIONS (continued)

CONDITION G.

Required Action and G.1 associated Completion Time of Condition A, 8, C, D, E, or F not met.

One DG battery on one subsystem with one of more battery cells float voltage s 2.07 V and float current > 5 amps.

One station service battery on one subsystem with one or more battery cells float voltage s 2.07 V and float current > 20 amps.

SURVEILLANCE REQUIREMENTS REQUIRED ACTION Declare associated battery inoperable.

SURVEILLANCE SR 3.8.6.1 SR 3.8.6.2 HATCH UNIT2

NOTE --------

Not required to be met when battery terminal voltage is less than the minimum established float voltage of SR 3.8.4.1. _______

Verify each DG battery float current is s 5 amps and each station service battery float current is s 20 amps.

Verify each DG and each station service battery pilot cell float voltage is > 2.07 V.

3.8-37 Battery Parameters 3.8.6 COMPLETION TIME Immediately FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program (continued)

Amendment No.

SURVEILLANCE REQUIREMENTS (continued)

SR 3.8.6.3 SR 3.8.6.4 SR 3.8.6.5 SR 3.8.6.6 HATCH UNIT 2 SURVEILLANCE Verify each DG and each station service battery connected cell electrolyte level is greater than or equal to minimum established design limits.

Verify each DG and each station service battery pilot cell temperature is greater than or equal to minimum established design limits.

Verify each DG and each station service battery connected cell float voltage is> 2.07 V.

NOTE----------

This Surveillance shall not normally be performed in MODE 1, 2, or 3. However, credit may be taken for unplanned events that satisfy this SR.

Verify DG and station service battery capacity is ~

80% of the manufacturer's rating when subjected to a performance discharge test or a modified performance discharge test.

3.8-38 Battery Parameters 3.8.6 FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program (continued)

Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.6.6 (continued)

HATCH UNIT 2 3.8-39 Battery Parameters 3.8.6 FREQUENCY 12 months when battery shows degradation or has reached 85% of expected life with capacity < 1 00% of manufacturer's rating AND 24 months when battery has reached 85% of expected life with capacity > 1 00% of manufacturer's rating Amendment No.

Distribution Systems - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Distribution Sys~ems-Operating LCO 3.8.7 APPLICABILITY:

ACTIONS The following AC and DC electrical power distribution subsystems shall be OPERABLE:

a.

Unit 2 AC and DC electrical power distribution subsystems comprised of:

1.

4160 V essential buses 2E, 2F, and 2G;

2.

600 V essential buses 2C and 2D;

3.

120/208 V essential cabinets 2A and 2B;

4.

120/208 V instrument buses 2A and 2B;

5.

125/250 V DC station service buses 2A and 2B;

6.

DG DC electrical power distribution subsystems;

7.

Critical Instrumentation Buses 2A and 2B; and

b.

Unit 1 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System"; LCO 3.7.4, "Main Control Room Environmental Control (MCREC) System";

LCO 3.7.5, "Control Room Air Conditioning (AC) System"; and LCO 3.8.1, "AC Sources-Operating."

MODES 1, 2, and 3.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more required Unit 1 AC or DC electrical power distribution subsystems inoperable.

HATCH UNIT 2 A.1 Restore required Unit 1 AC and DC subsystem(s) to OPERABLE status.

3.8-40 7 days (continued)

Amendment No.

ACTIONS (continued)

CONDITION B.

One or more (Unit 2 or B.1 swing bus) DG DC electrical power distribution subsystems inoperable.

c.

One or more (Unit 2 or C.1 swing bus) AC electrical power distribution subsystems inoperable.

D.

One Unit 2 station service D.1 DC electrical power distribution subsystem inoperable.

E.

Required Action and E.1 associated Completion Time of Condition A, B, C, AND or D not met.

E.2 F.

Two or more electrical F.1 power distribution subsystems inoperable that result in a loss of function.

HATCH UNIT 2 Distribution Systems - Operating 3.8.7 REQUIRED ACTION COMPLETION TIME Restore DG DC 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months electrical power distribution subsystem AND to OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months power distribution subsystem to AND OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Restore Unit 2 station 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months service DC electrical power distribution AND subsystem to OPERABLE status.

16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a Be in MODE 3.

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Be in MODE4.

36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months Enter LCO 3.0.3.

Immediately 3.8-41 Amendment No.

Distribution Systems - Operating 3.8.7 SURVEILLANCE REQUIREMENTS SR 3.8.7.1 HATCH UNIT2 SURVEILLANCE Verify correct breaker alignments and voltage to required AC and DC electrical power distribution subsystems.

3.8-42 FREQUENCY In accordance with the Surveillance Frequency Control Program Amendment No.

Distribution Systems - Shutdown 3.8.8 3.8 ELECTRICAL POWER SYSTEMS 3.8.8 Distribution Systems-Shutdown LCO 3.8.8 APPLICABILITY:

ACTIONS The necessary portions of the following AC and DC electrical power distribution subsystems shall be OPERABLE:

a.

The Unit 2 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE; and

b.

The Unit 1 AC and DC electrical power distribution subsystems needed to support equipment required to be OPERABLE by LCO 3.6.4.3, "Standby Gas Treatment (SGT) System"; LCO 3.7.4, "Main Control Room Environmental Control (MCREC) System";

LCO 3.7.5, "Control Room Air Conditioning (AC) System"; and LCO 3.8.2, "AC Sources-Shutdown."

MODES 4 and 5, During movement of irradiated fuel assemblies in the secondary containment.

CONDITION REQUIRED ACTION COMPLETION TIME A.

One or more required AC or DC electrical power distribution subsystems inoperable.

HATCH UNIT2 A.1 Declare associated supported required feature(s) inoperable.

A.2.1 Suspend CORE ALTERATIONS.

Immediately Immediately A.2.2 Suspend handling of Immediately irradiated fuel assemblies in the secondary containment.

(continued) 3.8-43 Amendment No.

ACTIONS Distribution Systems - Shutdown 3.8.8 CONDITION REQUIRED ACTION COMPLETION TIME A.

(continued)

A.2.3 Initiate action to suspend operations with a potential for draining the reactor vessel.

Immediately A.2.4 Initiate actions to Immediately restore required AC and DC electrical power distribution subsystem(s) to OPERABLE status.

A.2.5 Declare associated required shutdown cooling subsystem(s) inoperable and not in operation.

Immediately SURVEILLANCE REQUIREMENTS SR 3.8.8.1 HATCH UNIT2 SURVEILLANCE Verify correct breaker alignments and voltage to required AC and DC electrical power distribution subsystems.

3.8-44 FREQUENCY In accordance with the Surveillance Frequency Control Program Amendment No.

Edwin I. Hatch Nuclear Plant Units 1 and 2 Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, "DC Electrical Re-Write" Marked-Up Units 1 and 2 TS Bases Pages for LCO B 3.8.5

DC Sources - Shutdown B 3.8.5 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.5 DC Sources - Shutdown BASES BACKGROUND APPLICABLE SAFETY ANALYSES LCO HATCH UNIT 1 A description of the DC sources is provided in the Bases for LCO 3.8.4, "DC Sources-Operating."

The initial conditions of Design Basis Accident and transient analyses in the FSAR, Chapters 5 and 6 (Ref. 1), and Unit 2 FSAR Chapter 1 ~

(Ref. 2), assume that Engineered Safety Feature systems are OPERABLE. The DC electrical power system provides normal and emergency DC electrical power for the diesel generators (DGs),

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 electrical power sources during MODES 4 and 5 and during movement of irradiated fuel assemblies in the secondary containment ensures that:

a.

The facility 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 electrical power is provided to mitigate events postulated during shutdown, such as an inadvertent draindown of the vessel or a fuel handling accident.

The DC sources satisfy Criterion 3 of the NRC Policy Statement (Ref. 3).

The necessary Unit 1 DC electrical power subsystems -- with:

1) each station service DC subsystem consisting of one 125/250 V station service battery (consisting of two 125 V batteries in seriesl, two battery chargers, and the corresponding control equipment and interconnecting cabling; and

2) each DG DC subsystem consisting of one battery bank, one battery charger, and (continued)

B 3.8-63 REVISION 33

BASES LCO (continued)

APPLICABILITY ACTIONS HATCH UNIT 1 DC Sources - Shutdown B3.8.5 the corresponding control equipment and interconnecting cabling --

are required to be OPERABLE to support required DC distribution subsystems required OPERABLE by LCO 3.8.8, "Distribution Systems - Shutdown." In addition, some components that may be required by Unit 1 require power from Unit 2 sources (e.g., Standby Gas Treatment (SGT} System and LPCI valve load centers).

Therefore, the Unit 2 DG DC and the swing DG DC electrical power subsystems needed to provide DC power to the required Unit 2 components are also required to be OPERABLE. This requirement ensures the availability of sufficient DC electrical power sources to operate the unit in a safe manner and to mitigate the consequences of postulated events during shutdown (e.g., fuel handling accidents and inadvertent reactor vessel draindown).

The DC electrical power sources required to be OPERABLE in MODES 4 and 5 and during movement of irradiated fuel assemblies in the secondary containment provide assurance that:

a.

Required features to provide adequate coolant inventory makeup are available for the irradiated fuel assemblies in the core in case of an inadvertent draindown of the reactor vessel;

b.

Required features needed to mitigate a fuel handling accident are available;

c.

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

d.

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

The DC electrical power requirements for MODES 1, 2, and 3 are covered in LCO 3.8.4.

A.1 I A.2.1 I 1\\.2.2~ 1\\.2.3. and A.2.4A.2. A.3. B. 1, B ~ 2, B.3 Conditions A and B represent one or more (Condition A). or one (Condition 8)1 required subsystem with one or more required batterv chargers inoperable (e.g, the voltage limit of SR 3.8.4.1 is not maintained). The ACTIONS orovide a tiered response that focuses on returning the battery to the fully charged state and restoring a fully (continued)

B 3.8-64 REVISION 33

HATCH UNIT 1 DC Sources - Shutdown B3.8.5 qualified charger to OPERABLE status in a reasonable time period.

Required Action A.1/B.1 requires that the battery terminal voltage be restored to areater than or equal to the minimum established float voltage within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . This time orovides for returning the inoperable charger to OPERABLE status or oroviding an alternate means of restoring battery terminal voltage to greater than or equal to the minimum established float voltage. Restoring the battery terminal voltage to greater than or equal to the minimum established float voltage provides good assurance that. within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . the battery will be restored to its fully charged condition (Required Action A.2/8.2) from any discharae that mlg.bt.bave occurred due to the charger inoperability.

A discharged battery having terminal voltage of at least the minimum established float voltage indicates that the battery is on the exponential charoing current portion (the second part) of its recharge cycle. The time to return a battery to its fully charged state under this condition is simply a function of the amounLof the previous discharge and the recharge characteristic of the battery. Thus there is good assurance of fully recharging the battery within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . avoidinaa premature shutdown with its own atten nt ri k.

If established battery terminal float voltage cannot be restored to greater than or equal to the minimum established float voltage within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . and the charger is not operating in the current-limiting mode. a faulty charger is indicated. A faulty charger that is incapable of maintaining established battery terminal float voltage does not orovide assurance that it can revert to and operate properly in the current limit mode that is necessary during the recovery period following a battery discharge event that the DC system is designed for.

If the charger is operating in the current limit mode after 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that is an indication that the batterv is partially discharged and its capacity margins will be reduced. The time to return the batterv to its fully charged condition i!JJ.his case is a function of the battery charger capacity. the amount of loads on the associated DC system. the amount of the orevious discharge. and the recharge characteristic of the battery. The charge time can be extensive. and there is not adequate assurance that it can be recharged within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (Required Action A.2/B.2l.

Required Action A.2/B.2 requires that the battery float current be verified as less than or equal to 20 amos for the station service battery or 5 amps for the DG batterv. This indicates that. if the battery had been discharged as the result of the inoperable battery charger. it has now been fully recharged. If at the expiration of the initial12 hour period the batterv float current is not less than or equal to 20 amps for the station service battery or 5 amps for the DG battery this indicates there may be additional battery problems and the batterv must be declared inoperable.

(continued}

B 3.8-65 REVISION 33

HATCH UNIT 1 DC Sources - Shutdown B 3.8.5 Required Action A.3/B.3 limits the restoration time for the inoperable battery charger to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . This action is applicable if an alternate means of restoring battery terminal voltage to greater than or equal to the minimum established float voltage has been used (e.g., balance of plant non-Class 1 E battery charger). The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Completion Time reflects a reasonable time to effect restoration of the qualified battery charger to OPERABLE status.

C.1, C.2.1, C.2.2, C.2.3, C.2.4, D.1, D.2.1, D.2.2, D.2.3, and D.2.4, If more than one DC distribution subsystem is required according to LCO 3.8.8, the DC subsystems remaining OPERABLE with one or more DC power sources inoperable may be capable of supporting sufficient required features to allow continuation of CORE (continued)

B 3.8-66 REVISION 33

BASES ACTIONS SURVEILLANCE REQUIREMENTS HATCH UNIT 1 DC Sources - Shutdown B3.8.5 ALTERATIONS, fuel movement, and operations with a potential for draining the reactor vessel. By allowance of the option to declare required features inoperable with associated DC power sources inoperable, appropriate restrictions are implemented in accordance with the affected system LCOs' ACTIONS. In many instances, this option may involve undesired administrative efforts. Therefore, the allowance for sufficiently conservative actions is made (i.e., to suspend CORE ALTERATIONS, movement of irradiated fuel assemblies in the secondary containment, and any activities that could result in inadvertent draining of the reactor vessel).

Suspension of these activities shall not preclude completion of actions to establish a safe conservative condition. These actions minimize the probability of the occurrence of postulated events. It is further required to immediately initiate action to restore the required DC electrical power subsystems and to continue this action until restoration is accomplished in order to provide the necessary DC electrical power to the plant safety systems.

The Completion Time of immediately is consistent with the required times for actions requiring prompt attention. The restoration of the required DC electrical power subsystems should be completed as quickly as possible in order to minimize the time during which the plant safety systems may be without sufficient power.

SA 3.8.5.1 SA 3.8.5.1 requires performance of all Surveillances required by SA 3.8.4.1 through SA 3.8.4.~. Therefore, see the corresponding Bases for LCO 3.8.4 for a discussion of each SR.

This SA is modified by a Note. The reason for the Note 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 actual performance is not required.

SA 3.8.5.2 This Surveillance is provided to direct that the appropriate Surveillances for the required Unit 2 DC sources are governed by the (continued)

B 3.8-67 REVISION 33

BASES SURVEILLANCE REQUIREMENTS REFERENCES HATCH UNIT 1 SR 3.8.5.2 (continued)

DC Sources - Shutdown 8 3.8.5 Unit 2 Technical Specifications. Performance of the applicable Unit 2 Surveillances will satisfy both any Unit 2 requirements, as well as satisfying this Unit 1 Surveillance Requirement. The Frequency required by the applicable Unit 2 SR also governs performance of that SR for both Units.

1.

FSAR, Chapters 5 and 6.

2.

Unit 2 FSAR, Chapter 1~.

3.

NRC No.93-102, "Final Policy Statement on Technical Specification Improvements," July 23, 1993.

8 3.8-68 REVISION 33

DC Sources - Shutdown B 3.8.5 B 3.8 ELECTRICAL POWER SYSTEMS B 3.8.5 DC Sources - Shutdown BASES BACKGROUND APPLICABLE SAFETY ANALYSES LCO HATCH UNIT2 A description of the DC sources is provided in the Bases for LCO 3.8.4, "DC Sources-Operating."

The initial conditions of Design Basis Accident and transient analyses in the FSAR, Chapter 6 (Ref. 1) and Chapter 15 (Ref. 2),

assume that Engineered Safety Feature systems are OPERABLE.

The DC electrical power system provides normal and emergency DC electrical power for the diesel generators (DGs), 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 electrical power sources during MODES 4 and 5 and during movement of irradiated fuel assemblies in the secondary containment ensures that:

a.

The facility 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 electrical power is provided to mitigate events postulated during shutdown, such as an inadvertent draindown of the vessel or a fuel handling accident.

The DC sources satisfy Criterion 3 of the NRC Policy Statement (Ref. 3).

The necessary Unit 2 DC electrical power subsystems -- with:

1) each station service DC subsystem consisting of one 125/250 V station service battery (consisting of two 125 V batteries in seriesl, two battery chargers, and the corresponding control equipment and interconnecting cabling; and

2) each DG DC subsystem consisting of one battery bank, one battery charger, and (continued)

B 3.8-63 REVISION 39

BASES LCO (continued)

APPLICABILITY ACTIONS HATCH UNIT 2 DC Sources - Shutdown B 3.8.5 the corresponding control equipment and interconnecting cabling --

are required to be OPERABLE to support required DC distribution subsystems required OPERABLE by LCO 3.8.8, "Distribution Systems-Shutdown." In addition, some components that may be required by Unit 2 require power from Unit 1 sources (e.g., Standby Gas Treatment (SGD System and LPCI valve load centers).

Therefore, the Unit 1 DG DC and the swing DG DC electrical power subsystems needed to provide DC power to the required Unit 1 components are also required to be OPERABLE. This requirement ensures the availability of sufficient DC electrical power sources to operate the unit in a safe manner and to mitigate the consequences of postulated events during shutdown (e.g., fuel handling accidents and inadvertent reactor vessel draindown).

The DC electrical power sources required to be OPERABLE in MODES 4 and 5 and during movement of irradiated fuel assemblies in the secondary containment provide assurance that:

a.

Required features to provide adequate coolant inventory makeup are available for the irradiated fuel assemblies in the core in case of an inadvertent draindown of the reactor vessel;

b.

Required features needed to mitigate a fuel handling accident are available;

c.

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

d.

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

The DC electrical power requirements for MODES 1, 2, and 3 are covered in LCO 3.8.4.

A.1.,1\\.2.1, A.2.2. A.2.3. and A.2.4A.2. A.3. B.1. B.2. B.3 Conditions A and B represent one or more (Condition A) or one

{Condition B> required subsystem with one or more required batterv chargers inoperable (e.g, the voltage limit of SR 3.8.4.1 is not maintained). The ACTIONS provide a tiered response that focuses on returning the battery to the fully charged state and restoring a fully qualified charger to OPERABLE status in a reasonable time period.

(continued)

B 3.8-64,

REVISION 39

HATCH UNIT 2 DC Sources - Shutdown B 3.8.5 Reauired Action A.1/B.1 requires that the batterv terminal voltage be restored to greater than or equal to the minimum established float

~tage within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . This time provides for returning the inoperable charger to OPERABLE status or providinaan alternate meam_Qf restoring battery terminal voltage to greater than or equal to the minimum established float voltage. Restoring the battery terminal voltage to greater than or equa.L1QJhe minimum established float voltage provides good assurance that. within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . the battery will be restored to its fully charged condition fReguired Action A.2/8.2) from any discharae that might have occurred due to the charger inoperability.

A discharged battery having terminal voltage of at least the minimum established float voltage indicates that the battery is on the.

exponential charging current portion (the second part) of its recharge cycle. The time to return a battery to its fully charged state under this condition is simply a function of the amount of the previous discharge and the recharae characteristic of the battery. Thus there is good assurance. of fully recharging the batterv within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . avoiding a premature shutdown with its own attendant risk.

If established battery terminal float voltage cannot be restored to greater than or equal to the minimum established float voltage within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . and the charaer is not operating in the current-limiting mode. a faulty charger is indicated. A faulty charger that is incapable of maintaining established battery terminal float voltage does not provide assurance that it can revert to and operate properly in the current limit mode that is necessary during the recovery period following a batterv discharge event that the DC system is designed.fuL.

If the charger is operating in the current limit mode after 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that is an indication that the battery is partially discharged and jts capacitv margins will be reduced. The time to return the batterv to its fully charged condition in this case is a function of tbe battery charger capacitv. the amount of loads on the associated PC system. the

.amount of the previous discharge. and the recharae c.tJ.a[acteristic of the battery. The charge time can be extensive. and there is not adequate assurance that it can be recharged within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (Required Action A.2/8.2).

Required Action A.2/B.2 requires that the battery float current be verified as less than or equal to 20 amps for the station service battery or 5 amps for the DG battery. This indicates that. if the battery had been discharged as the result of the inoperable battery charger. it has now been fully recharaed. If at the expiration of the initial 12 hour1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months period the battery float current is not less than or equal to 20 amps for the station service battery or 5 amps for the DG batterv this indicates there may be additional batterv problems and the battery must be declared inoperable.

(continued)

B 3.8-65 REVISION 39

HATCH UNIT2 DC Sources - Shutdown B 3.8.5 Required Action A.3/B.3 limits the restoration time for the jnoperable battery charger to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . This action is applicable if an alternate means of restoring batterv terminal voltage to greater than or equal to the minimum established float voltage has been used <e.g.. balance of plant non-Class 1 E battery charger). The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Completion Time reflects a reasonable time to effect restoration of the qualified battery charger to OPERABLE status.

C.1. C.2.1. C.2.2. C.2.3. C.2.4. D.1 0.2 1 D 2 2 D 2 3. and 0.2.4.

If more than one DC distribution subsystem is required according to LCO 3.8.8, the DC subsystems remaining OPERABLE with one or more DC power sources inoperable may be capable of supporting sufficient required features to allow continuation of CORE (continued)

B 3.8-66 REVISION 39

BASES ACTIONS SURVEILLANCE REQUIREMENTS HATCH UNIT2 DC Sources - Shutdown B 3.8.5 C.1. C.2.1. C.2.2. C.2.3. C.2.4. D.1. D.2.1. D.2.2. D.2.3. and D.2.4.A.1. /\\.2.1..A *. 2.2.,<\\.2.3. and /\\.2.4 (continued)

ALTERATIONS, fuel movement, and operations with a potential for draining the reactor vessel. By allowance of the option to declare required features inoperable with associated DC power sources inoperable, appropriate restrictions are implemented in accordance with the affected system LCOs' ACTIONS. In many instances, this option may involve undesired administrative efforts. Therefore, the allowance for sufficiently conservative actions is made (i.e., to suspend CORE ALTERATIONS, movement of irradiated fuel assemblies in the secondary containment, and any activities that could result in inadvertent draining of the reactor vessel).

Suspension of these activities shall not preclude completion of actions to establish a safe conservative condition. These actions minimize the probability of the occurrence of postulated events. It is further required to immediately initiate action to restore the required DC electrical power subsystems and to continue this action until restoration is accomplished in order to provide the necessary DC electrical power to the plant safety systems.

The Completion Time of immediately is consistent with the required times for actions requiring prompt attention. The restoration of the required DC electrical power subsystems should be completed as quickly as possible in order to minimize the time during which the plant safety systems may be without sufficient power.

SR 3.8.5.1 SR 3.8.5.1 requires performance of all Surveillances required by SR 3.8.4.1 through SR 3.8.4 J~~. Therefore, 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 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 actual performance is not required.

SR 3.8.5.2 This Surveillance is provided to direct that the appropriate Surveillances for the required Unit 1 DC sources are governed by the (continued)

B 3.8-67 REVISION 39

BASES SURVEILLANCE REQUIREMENTS REFERENCES HATCH UNIT2 SR 3.8.5.2 (continued)

DC Sources - Shutdown B 3.8.5 Unit 1 Technical Specifications. Performance of the applicable Unit 1 Surveillances will satisfy both any Unit 1 requirements, as well as satisfying this Unit 2 Surveillance Requirement. The Frequency required by the applicable Unit 1 SR also governs performance of that SR for both Units.

1.

FSAR, Chapter 6.

2.

FSAR, Chapter 15.

3.

NRC No.93-102, "Final Policy Statement on Technical Specification Improvements," July 23, 1993.

B 3.8-68 REVISION 39

v t e Letter Sequence Other
CAC:MF6611, DC Electrical Rewrite - Update to TSTF-360 (Approved, Closed)
Initiation Request, Request, Request Acceptance Supplement Administration Questions 13 July 2016 17 October 2016 Answers 12 August 2016 16 November 2016 Results Approval Other: ML15331A337, NL-16-1564, Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, DC Electrical Re-Write
MONTHYEAR2016-06-17 [Table View]

NL-16-1564, Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, DC Electrical Re-Write

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