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 Southern Nuclear Nuclear Licensing Manager Operating Company, Inc.

40 Inverness Center Parkway Post Office Box 1295 Birmingham, AL 35242

~ Southern Nuclear Tel 205.992.5998 Fax 205.992.7601 September 20, 2016 Docket Nos.: 50-321 NL-16-1564 50-366 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 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 A0 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" Enclosure 1 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.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more reguired B.1 Restore batte[Y terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months batte[Y chargers on one voltage to greater than reguired station service DC or egual to the minimum subsystem inoperable. established float voltage.

AND AND The redundant reguired B.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months station service DC current < 20 amps.

subsystem battery and reguired chargers AND OPERABLE.

B.3 Restore batte[Y 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months charger(s) to OPERABLE status.

AC. One or more required DG AC.1 Declare affected Immediately DC electrical power required feature(s) subsystems inoperable for inoperable.

reasons other than Condition A. OR OR AC.2.1 Suspend CORE Immediately ALTERATIONS.

Reguired Actions and associated Completion AND Times of Condition A not met AC.2.2 Suspend movement of Immediately irradiated fuel assemblies in the secondary containment.

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

jcontinued)

HATCH UNIT 1 3.8-32 Amendment No.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME AC. (continued} AC.a.a IRitiate astieR te Immediately SI:IS~eRd e~eFatieRS witl=l a ~eteRtial feF dFaiRiRg tl=le Feastm vessel.

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

D. One or more reguired D.1 Declare affected Immediately station service DC electrical reguired feature(s}

(;!ower subsystems inoQerable.

inoQerable for reasons other than Condition B. OR OR D.2.1 SusQend CORE Immediately ALTERATIONS.

Reguired Actions and associated ComQietion AND Times of Condition B not met D.2.2 Sus(;!end movement of Immediately irradiated fuel assemblies in the secondary containment.

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

AND D.2.4 Initiate action to restore Immediately reguired DC electrical

(;!Ower subsystems to OPERABLE status.

HATCH UNIT 1 3.8-33 Amendment No.

DC Sources- Shutdown 3.8.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE 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 In accordance with are applicable: applicable SRs SA 3.8.4.1 SR 3.8.4.4 SR 3.8.4.7

_ _ _ _ _ _ _SA 3.8.4.2 SR 3.8.4.5 SR 3.8.4.8.

SA 3.8.4.3 SR 3.8.4.6 SA 3.8.5.2 For required Unit 2 DC sources, SA 3.8.5.1 of In accordance with Unit 2 Specification 3.8.5 is applicable. Unit 2 SA 3.8.5.1 HATCH UNIT 1 3.8-34 Amendment No.

Battery GeJI-Parameters 3.8.6 3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery GeJI-Parameters 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 COMPLETION TIME A. One or more Batteries with PtAr.=~.11--'v-./oEHF::tfif~Y-'api'*'loH-t-GGEHOif-BI's 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months one or more Battery ooll olootrolyte Ioval 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 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months parameters meet TaBle a.8.e 1 Category C limits.

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

Battery Geli-Parameters 3.8.6 ACTIONS (continued}

CONDITION REQUIRED ACTION COMPLETION TIME A. One DG or station service A.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery on one subsystem with one or more battery AND cells float voltage< 2.07 V.

A.2 Perform SR 3.8.6.1 . 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months AND A.3 Restore affected cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months voltage > 2.07 V.

B. One DG battery on one B.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem with float current

> 5 amps. AND B.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to < 5 amps.

C. One station service batterv C.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months on one subsystem with float current > 20 amps. AND C.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to < 20 amps.

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

Reguired Action D.2 shall be Reguired Actions D.1 and D.2 completed if electrolyte level are only applicable if electrolvte was below the top of plates. level was below the top of

plates.

D. ()ne DG or station service battery on one subsystem D.1 Restore electrolyte level 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months with one or more cells to above top of plates.

electrolyte level less than minimum established design AND limits.

D.2 Verify no evidence of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months leakage.

AND D.3 Restore electrolvte level 31 days to areater than or eaual HATCH UNIT 1 3.8-34 Amendment No. 200 I

Battery Geli-Parameters 3.8.6 to minimum established design limits.

E. One DG or station service E.1 Restore battery gilot cell 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months battery on one subsystem temgerature to greater with gilot cell electrolyte than or egual to temgerature less than minimum established minimum established design design limits.

limits.

F. One or more batteries in F.1 Restore battery 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months redundant subsystems with garameters for batteries battery garameters not in one subsystem to within limits. within limits.

S G. Required Action and 8 G.1 Declare associated Immediately associated Completion battery inoperable.

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 3.8-35 Amendment No. aee I

Battery Geii-Parameters 3.8.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.6.1 Verify battery sell parameters meet Table 3.8.6 1 IR asseraaRse witl=t Category A limits. tl=te SI:IF¥eillaRse Freql:leRsy CoRtrol Program SR 3.8.6.2 Verify battery sell parameters meet Table 3.8.6 1 IR assoraaRse 'Nitl=t Category 8 limits. tl=te SI:IF¥eillaRse Freql:leRsy CoRtrol Program ANI;)

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

. 16Q 'I SR 3.8.6.3 Verify a1Jerage elestrolyte temperat1

1re of IR asseraaRse witl=t represeRtative sells is Cit 66°F for easl=t statioR tl=te SI

IF¥eillaRse servise battery, aRe Cit 4Q°F for easl=t DG battery. Freql: leRsy CoRtrol Program 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 In accordance with and each station service batter~ float current is < the Surveillance 20 am[2s. Freguenc~ Control Program SR 3.8.6.2 Verif~ each DG and each station service batte!Y In accordance with

[2ilot cell float voltage is> 2.07 V. the Surveillance Freguenc~ Control Program SR 3.8.6.3 Verif~ each DG and each station service batte!Y In accordance with connected cell electrolyte level is oreater than or the Surveillance HATCH UNIT 1 3.8-36 Amendment No. 2ee I

Battery Ge>>-Parameters 3.8.6 equal to minimum established design limits. Frequency Control Program SA 3.8.6.4 Verify each DG and each station service battery In accordance with pilot cell temperature is greater than or equal to the Surveillance minimum established design limits. Frequency Control Program SA 3.8.6.5 Verify each DG and each station service battery In accordance with connected cell float voltage is> 2.07 V. the Surveillance Frequency Control Program SA 3.8.6.6 ------------------------------~()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 > In accordance with 80% of the manufacturer's rating when subjected the Surveillance to a performance discharge test or a modified Frequency Control performance discharge test. Program 12 months when battery shows degradation or has reached 85% of expected life with capacity < 100% of manufacturer's rating 24 months when battery has reached 85% of expected life with capacity ~ 100% of manufacturer's rating HATCH UNIT 1 3.8-37 Amendment No. 200 I

Battery GeU-Parameters 3.8.6 Table 3.8.8 1 (page 1 of 1)

Battery Cell PaFameter Requirements GA+eGGR¥G:

GA+eGGR¥A: GATeGGR¥8: LIMITS biMITS FGR eAGI=4 biMITS FGR eAGI=4 FGR EAGI=4

~.A.R.A,METeR QeSIGNA+eQ ~lbGT Gebb GGNNeGTeQ Gebb GGNNeGTeQ Gebb Electrolyte Le'lel ;;.. Minimum le'lel insioation :;.. Minimum le11BI Abo'Je top of mark, ans ~ 1/4 inoh insioation mark, ans plates, ans not abo'le m~imum le'lel $:. 1/4 inoh abo11e 0'19rfiO'Ning insioation markW m~imum le1 1el insioation markw P:loat Voltage ~ a.1a v ~ a.1a v :;.. a.Q7V Speoifio Grai~*~

~ 1.agg ::it 1.195 Not more than Q.QaQ below AN9 average of all oonneotes sells A'leFage of all oonneotes sells AN9

.. 1.ags 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.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more reguired B.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery chargers on one voltage to greater than reguired station service DC or egual to the minimum subsystem inoperable. established float voltage.

AND AND The redundant reguired B.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months station service DC current~ 20 amps.

subsystem battery and reguired chargers AND OPERABLE.

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

AC. One or more required DG AC.1 Declare affected Immediately DC electrical power required feature(s) subsystems inoperable for inoperable.

reasons other than Condition A. OR OR AC.2.1 Suspend CORE Immediately -

ALTERATIONS.

Reguired Actions and associated Completion AND Times of Condition A not met. AC.2.2 Suspend movement of Immediately irradiated fuel ,

assemblies in the secondary containment.

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

(continued)

HATCH UNIT2 3.8-32 Amendment No.

DC Sources- Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME AC. (continued) AC.2.3 IRitiate astieR te Immediately SI:JSj:)eRd epeFatieRS witl=l a peteRtial feF dFaiRiRg tl=le Feastm vessel.

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

D. One or more reguired D.1 Declare affected Immediate!~

station service DC electrical reguired feature(s) gower subs~stems inogerable.

inogerable for reasons other than Condition B. OR OR D.2.1 Susgend CORE Immediate!~

ALTERATIONS.

Reguired Actions and associated Comgletion AND Times of Condition B not met. D.2.2 Susgend movement of Immediate!~

irradiated fuel assemblies in the secondary containment.

AND D.2.3 Initiate action to Immediate!~

susgend ogerations with a gotential for draining the reactor vessel.

AND D.2.4 Initiate action to restore Immediate!~

reguired DC electrical gower subs~stems to OPERABLE status.

HATCH UNIT2 3.8-33 Amendment No.

DC Sources - Shutdown 3.8.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE 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 In accordance with are applicable: applicable SRs SA 3.8.4.1 SR 3.8.4.4 SR 3.8.4.7

_ _ _ _ _ _ _SA 3.8.4.2 SR 3.8.4.5 SR 3.8.4.8.

SR 3.8.4.3 SR 3.8.4.6 SA 3.8.5.2 For required Unit 1 DC sources, SA 3.8.5.1 of In accordance with Unit 1 Specification 3.8.5 is applicable. Unit 1 SA 3.8.5.1 HATCH UNIT2 3.8-34 Amendment No.

Battery GeU-Parameters 3.8.6 3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery GeU-Parameters 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 COMPLETION TIME A. One or more batteries with MAr.-.1t---->~V-eeHrifFYyc;:pmil~otHG:.t:emii'S's 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months parameters meet Table 3.8.9 1 Category C limits.

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

Battery GeU-Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME A. One DG or station service A.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months batte[Y on one subsystem with one or more batte[Y AND cells float voltage ~ 2.07 V.

A.2 Perform SR 3.8.6.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months AND A.3 Restore affected cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months voltage > 2.07 V.

B. One DG batte[Y on one B.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem with float current

> 5 amps. AND B.2 Restore batte[Y float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to s 5 amps.

C. One station service batte[Y C.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months on one subsystem with float current> 20 amps. AND C.2 Restore batte[Y float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to < 20 amps.

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

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

plates.

D. One DG or station service batte[Y on one subsystem D.1 Restore electrolyte level 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months with one or more cells to above top of plates.

electrolyte level less than minimum established design AND limits.

D.2 Verify no evidence of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months leakage.

AND D.3 Restore electrolvte level 31 days to areater than or eaual HATCH UNIT2 3.8-34 Amendment No. 2-+G I

Battery GeU-Parameters 3.8.6 to minimum established design limits.

E. One DG or station service E.1 Restore battery Qilot cell 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months battery on one subsystem temQerature to greater with Qilot cell electrolvte than or egual to temQerature less than minimum established minimum established design design limits.

limits.

F. One or more batteries in F.1 Restore battery 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months redundant subsystems with Qarameters for batteries battery Qarameters not in one subsystem to within limits. within limits.

8 G. Required Action and 8 G.1 Declare associated Immediately associated Completion battery inoperable.

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 3.8-35 Amendment No. ~ I

Battery Geii-Parameters 3.8.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.6.1 Verif.y battery sell parameters meet Table 3.8.6 1 IR asserelaRse witl=l Category A limits. tl=le S~:~rveillaRse Freq~:~eRsy CoRtrol

~rogram SR 3.8.6.2 Verif.y battery sell parameters meet Table 3.8.6 1 IR assorelaRse 'Nitl=l Category B limits. tl=le S~:~rveillaRse Freq~:~eRsy CoRtrol Program ANt)

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

. 1aQ v SR 3.8.6.3 Verify average electrolyte temperat~

~re of IR assorelaRse witl=l represeRtative sells is~ 6a°F #or easl=l statioR tl=le S~: ~rveillaRse service battery, aRel ~ 4Q°F #or easl=l DG battel)'. Freq~:~eRsy CoRtrol Program 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 In accordance with and each station service battery float current is < the Surveillance 20 am12s. Freguency Control Program SR 3.8.6.2 Verify each DG and each station service battery In accordance with 12ilot cell float voltage is> 2.07 V. the Surveillance Freguency Control Program SR 3.8.6.3 Verify each DG and each station service battery In accordance with connected cell electrolyte level is Qreater than or the Surveillance HATCH UNIT2 3.8-36 Amendment No. 2-+G I

Battery GeU-Parameters 3.8.6 equal to minimum established design limits. Frequency Control Program SA 3.8.6.4 Verify each DG and each station service battery In accordance with pilot cell temperature is greater than or equal to the Surveillance minimum established design limits. Frequency Control Program SA 3.8.6.5 Verify each DG and each station service battery In accordance with connected cell float voltage is > 2.07 V. the Surveillance Frequency Control Program SA 3.8.6.6 ------------------------------~()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 > In accordance with 80% of the manufacturer's rating when subjected the Surveillance to a performance discharge test or a modified Frequency Control performance discharge test. Program 12 months when battery shows degradation or has reached 85% of expected life with capacity < 100% of manufacturer's rating 24 months when battery has reached 85% of expected life with capacity ;:: 100% of manufacturer's rating HAliCH UNill 2 3.8-37 Amendment No. 2+G I

Battery Geii-Parameters 3.8.6 Table 3.8.6 1 (page 1 of 1)

Battery Cell Parameter Requirements GA+eGGR¥G:

GAT!;;GGR¥A: GA+eGGR¥8: liMITS liMITS ~GR eAGj..~ liMITS ~GR e.O.Gj..~ ~GR EAGj..~

F2.A,RAMETeR QeSIGNA+eQ PlbGT Gell GGNNeGTeQ Gell GGNNeGTeQ Gi;;lb Electrolyte Level ;::. Minimum le11el inaication ,.. Minimum level Ab011e top of mark, ana~ 1/4 inch inaication mark, ana plates, ana not above m~imum level ~ 1/4 inch abo11e o'lerflo~o*.,ing inaication markw m~imum le11el inaication markW

~loat Voltage d!! 2.13 v 0!2.13 v ;.. 2.Q7V Specific 0!1.2QQ 0!1.195 Not more than Gra1 J i~'~ Q.Q2Q beiOIJ.I ANI} average of all connectea cells

~Nerago of all connoctea cells ANI}

... 1.2Q5 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" Enclosure 2 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, 11 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, 11 Standby Gas Treatment (SGT) Systemu; and LCO 3.8.2, 11 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)

HATCH UNIT 1 3.8-31 Amendment No.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more required B.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery chargers on one voltage to greater than required station service DC or equal to the minimum subsystem inoperable. established float voltage.

AND AND The redundant required B.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months station service DC currents 20 amps.

subsystem battery and required chargers AND OPERABLE.

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

c. One or more required DG C.1 Declare affected Immediately DC electrical power required feature(s) subsystems inoperable for inoperable.

reasons other than Condition A. OR OR C.2.1 Suspend CORE Immediately ALTERATIONS.

Required Actions and associated Completion AND Times of Condition A not met C.2.2 Suspend movement of Immediately irradiated fuel assemblies in the secondary containment.

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

(continued)

HATCH UNIT 1 3.8-32 Amendment No.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME

c. (continued) AND C.2.4 Initiate action to restore Immediately required DC electrical power subsystems to OPERABLE status.

D. One or more required D.1 Declare affected Immediately station service DC electrical required feature(s) power subsystems inoperable.

inoperable for reasons other than Condition B. OR OR D.2.1 Suspend CORE Immediately ALTERATIONS.

Required Actions and associated Completion AND Times of Condition B not met D.2.2 Suspend movement of Immediately irradiated fuel assemblies in the secondary containment.

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

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

HATCH UNIT 1 3.8-33 Amendment No.

DC Sources - Shutdown 3.8.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.5.1 -------------------------------NOTE----------------------------

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 In accordance with are applicable: applicable SRs SR 3.8.4.1 SR 3.8.4.2 SR 3.8.4.3 SR 3.8.5.2 For required Unit 2 DC sources, SR 3.8.5.1 of In accordance with Unit 2 Specification 3.8.5 is applicable. Unit 2 SR 3.8.5.1 HATCH UNIT 1 3.8-34 Amendment No.

Battery Parameters 3.8.6 3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery Cell Parameters 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 REQUIRED ACTION COMPLETION TIME A. One DG or station service A.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery on one subsystem with one or more battery AND cells float voltage s 2.07 V.

A.2 Perform SR 3.8.6.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months AND A.3 Restore affected cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months voltage> 2.07 V.

B. One DG battery on one B.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem with float current > 5 amps. AND B.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to s 5 amps.

c. One station service battery C.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months on one subsystem with float current > 20 amps. AND C.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to s 20 amps.

(contmued)

HATCH UNIT 1 3.8-35 Amendment No.

Battery Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME

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

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

- plates.

D. One DG or station service battery on one subsystem D.1 Restore electrolyte level 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months with one or more cells to above top of plates.

electrolyte level less than minimum established AND design limits.

D.2 Verify no evidence of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months leakage.

AND D.3 Restore electrolyte level 31 days to greater than or equal to minimum established design limits.

E. One DG or station service E.1 Restore battery pilot cell 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months battery on one subsystem temperature to greater with pilot cell electrolyte than or equal to temperature less than minimum established minimum established design limits.

design limits.

F. One or more batteries in F.1 Restore battery 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months redundant subsystems with parameters for batteries battery parameters not in one subsystem to within limits. within limits.

(contmued)

HATCH UNIT 1 3.8-36 Amendment No.

Battery Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME G. Required Action and G.1 Declare associated Immediately associated Completion battery inoperable.

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 SURVEILLANCE FREQUENCY SR 3.8.6.1 -----------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 In accordance with and each station service battery float current is the Surveillance S20 amps. Frequency Control Program SR 3.8.6.2 Verify each DG and each station service battery In accordance with pilot cell float voltage is > 2.07 V. the Surveillance Frequency Control Program (continued)

HATCH UNIT 1 3.8-37 Amendment No.

Battery Parameters 3.8.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.6.3 Verify each DG and each station service battery In accordance with connected cell electrolyte level is greater than or the Surveillance equal to minimum established design limits. Frequency Control Program SR 3.8.6.4 Verify each DG and each station service battery In accordance with pilot cell temperature is greater than or equal to the Surveillance minimum establis_ hed design limits. Frequency Control Program SR 3.8.6.5 Verify each DG and each station service battery In accordance with connected cell float voltage is> 2.07 V. the Surveillance Frequency Control Program SR 3.8.6.6 ---------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 In accordance with

~ 80% of the manufacturer's rating when the Surveillance subjected to a performance discharge test or a Frequency Control modified performance discharge test. Program (continued)

HATCH UNIT 1 3.8-38 Amendment No.

Battery Parameters 3.8.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.6.6 (continued) 12 months when battery shows degradation or has reached 85% of expected life with capacity < 100% of manufacturer's rating 24 months when

battery has reached 85% of expected life with capacity > 100%

of manufacturer's rating HATCH UNIT 1 3.8-39 Amendment No.

Distribution Systems - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Distribution Systems- Operating LCO 3.8.7 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 1C and 1D;

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."

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Restore required ?days Unit 2 AC or DC electrical Unit 2 AC and DC power distribution subsystem(s) to subsystems inoperable. OPERABLE status.

(continued)

HATCH UNIT 1 3.8-40 Amendment No.

Distribution Systems - Operating 3.8.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more (Unit 1 or B.1 Restore DG DC 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months swing bus) DG DC electrical power electrical power distribution distribution subsystem AND subsystems inoperable. 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

c. One or more (Unit 1 or C.1 Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months swing bus) AC electrical power distribution power distribution subsystem to AND subsystems inoperable. 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 D. One Unit 1 station service D.1 Restore Unit 1 station 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months DC electrical power service DC electrical distribution subsystem power distribution AND inoperable. 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 E. Required Action and E.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A, B, C, AND or D not met.

E.2 Be in MODE4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months F. Two or more electrical F.1 Enter LCO 3.0.3. Immediately power distribution subsystems inoperable that result in a loss of function.

HATCH UNIT 1 3.8-41 Amendment No.

Distribution Systems - Operating 3.8.7 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct breaker alignments and voltage to In accordance with required AC and DC electrical power distribution the Surveillance subsystems. Frequency Control Program HATCH UNIT 1 3.8-42 Amendment No.

Distribution Systems - Shutdown 3.8.8 3.8 ELECTRICAL POWER SYSTEMS 3.8.8 Distribution Systems - Shutdown LCO 3.8.8 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."

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required AC A.1 Declare associated Immediately or DC electrical power supported required distribution subsystems feature(s) inoperable.

inoperable.

OR A.2.1 Suspend CORE Immediately ALTERATIONS.

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

(continued)

HATCH UNIT 1 3.8-43 Amendment No. I

Distribution Systems - Shutdown 3.8.8 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) A.2.3 Initiate action to Immediately suspend operations with a potential for draining the reactor vessel.

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 Immediately required shutdown cooling subsystem(s) inoperable and not in operation.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.8.1 Verify correct breaker alignments and voltage to In accordance with required AC and DC electrical power distribution the Surveillance subsystems. Frequency Control Program HATCH UNIT 1 3.8-44 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.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more required B.1 Restore battery terminal 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery chargers on one voltage to greater than required station service DC or equal to the minimum subsystem inoperable. established float voltage.

AND AND The redundant required B.2 Verify battery float Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months station service DC current s 20 amps.

subsystem battery and required chargers AND OPERABLE.

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

c. One or more required DG C.1 Declare affected Immediately DC electrical power required feature(s) subsystems inoperable for inoperable.

reasons other than Condition A. OR OR C.2.1 Suspend CORE Immediately ALTERATIONS.

Required Actions and /

associated Completion AND Times of Condition A not met. C.2.2 Suspend movement of Immediately irradiated fuel assemblies in the secondary containment.

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

(continued)

HATCH UNIT2 3.8-32 Amendment No.

DC Sources - Shutdown 3.8.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME

c. (continued) AND C.2.4 Initiate action to restore Immediately required DC electrical power subsystems to OPERABLE status.

D. One or more required D.1 Declare affected Immediately station service DC electrical required feature(s) power subsystems inoperable.

inoperable for reasons other than Condition B. OR OR D.2.1 Suspend CORE Immediately ALTERATIONS.

Required Actions and associated Completion AND Times of Condition B not met. D.2.2 Suspend movement of Immediately irradiated fuel assemblies in the secondary containment.

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

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

HATCH UNIT2 3.8-33 Amendment No.

DC Sources - Shutdown 3.8.5 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SA 3.8.5.1 -------------------------------NC>TE----------------------------

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 In accordance with are applicable: applicable SRs SA 3.8.4.1 SA 3.8.4.2 SA 3.8.4.3 SR 3.8.5.2 For required Unit 1 DC sources, SA 3.8.5.1 of In accordance with Unit 1 Specification 3.8.5 is applicable. Unit 1 SA 3.8.5.1 HATCH UNIT2 3.8-34 Amendment No.

Battery Parameters 3.8.6 3.8 ELECTRICAL POWER SYSTEMS 3.8.6 Battery Parameters 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 COMPLETION TIME A. One DG or station service A.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months battery on one subsystem with one or more battery AND cells float voltages; 2.07 V.

A.2 Perform SR 3.8.6.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months AND A.3 Restore affected cell 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months voltage > 2.07 V.

B. One DG battery on one B.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem with float current > 5 amps. AND B.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to s; 5 amps.

c. One station service battery C.1 Perform SR 3.8.4.1. 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months on one subsystem with float current > 20 amps. AND C.2 Restore battery float 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months current to s; 20 amps.

(continued)

HATCH UNIT2 3.8-35 Amendment No.

Battery Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME

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

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

D. One DG or station service battery on one subsystem D.1 Restore electrolyte level 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months with one or more cells to above top of plates.

electrolyte level less than minimum established AND design limits.

D.2 Verify no evidence of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months leakage.

AND D.3 Restore electrolyte level 31 days to greater than or equal to minimum established design limits.

E. One DG or station service E.1 Restore battery pilot 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months battery on one subsystem cell temperature to with pilot cell electrolyte greater than or equal to temperature less than minimum established minimum established design limits.

design limits.

F. One or more batteries in F.1 Restore battery 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months redundant subsystems with parameters for batteries battery parameters not in one subsystem to within limits. within limits.

(continued)

HATCH UNIT 2 3.8-36 Amendment No.

Battery Parameters 3.8.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME G. Required Action and G.1 Declare associated Immediately associated Completion battery inoperable.

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 SURVEILLANCE FREQUENCY SR 3.8.6.1 -----------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 In accordance with and each station service battery float current is s the Surveillance 20 amps. Frequency Control Program SR 3.8.6.2 Verify each DG and each station service battery In accordance with pilot cell float voltage is > 2.07 V. the Surveillance Frequency Control Program (continued)

HATCH UNIT2 3.8-37 Amendment No.

Battery Parameters 3.8.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.6.3 Verify each DG and each station service battery In accordance with connected cell electrolyte level is greater than or the Surveillance equal to minimum established design limits. Frequency Control Program SR 3.8.6.4 Verify each DG and each station service battery In accordance with pilot cell temperature is greater than or equal to the Surveillance minimum established design limits. Frequency Control Program SR 3.8.6.5 Verify each DG and each station service battery In accordance with connected cell float voltage is> 2.07 V. the Surveillance Frequency Control Program SR 3.8.6.6 ----------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 ~ In accordance with 80% of the manufacturer's rating when subjected the Surveillance to a performance discharge test or a modified Frequency Control performance discharge test. Program (continued)

HATCH UNIT 2 3.8-38 Amendment No.

Battery Parameters 3.8.6 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.6.6 (continued) 12 months when battery shows degradation or has reached 85% of expected life with capacity < 100% of manufacturer's rating AND 24 months when battery has reached 85% of expected life with capacity > 100% of manufacturer's rating HATCH UNIT 2 3.8-39 Amendment No.

Distribution Systems - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Distribution Sys~ems- Operating LCO 3.8.7 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."

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Restore required 7 days Unit 1 AC or DC electrical Unit 1 AC and DC power distribution subsystem(s) to subsystems inoperable. OPERABLE status.

(continued)

HATCH UNIT 2 3.8-40 Amendment No.

Distribution Systems - Operating 3.8.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One or more (Unit 2 or B.1 Restore DG DC 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months swing bus) DG DC electrical power electrical power distribution distribution subsystem AND subsystems inoperable. 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

c. One or more (Unit 2 or C.1 Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months swing bus) AC electrical power distribution power distribution subsystem to AND subsystems inoperable. 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 D. One Unit 2 station service D.1 Restore Unit 2 station 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months DC electrical power service DC electrical distribution subsystem power distribution AND inoperable. 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 E. Required Action and E.1 Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion Time of Condition A, B, C, AND or D not met.

E.2 Be in MODE4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months F. Two or more electrical F.1 Enter LCO 3.0.3. Immediately power distribution subsystems inoperable that result in a loss of function.

HATCH UNIT 2 3.8-41 Amendment No.

Distribution Systems - Operating 3.8.7 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct breaker alignments and voltage to In accordance with required AC and DC electrical power distribution the Surveillance subsystems. Frequency Control Program HATCH UNIT2 3.8-42 Amendment No.

Distribution Systems - Shutdown 3.8.8 3.8 ELECTRICAL POWER SYSTEMS 3.8.8 Distribution Systems- Shutdown LCO 3.8.8 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."

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required AC A.1 Declare associated Immediately or DC electrical power supported required distribution subsystems feature(s) inoperable.

inoperable.

A.2.1 Suspend CORE Immediately ALTERATIONS.

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

(continued)

HATCH UNIT2 3.8-43 Amendment No.

Distribution Systems - Shutdown 3.8.8 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. (continued) A.2.3 Initiate action to Immediately suspend operations with a potential for draining the reactor vessel.

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 Immediately required shutdown cooling subsystem(s) inoperable and not in operation.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.8.1 Verify correct breaker alignments and voltage to In accordance with required AC and DC electrical power distribution the Surveillance subsystems. Frequency Control Program HATCH UNIT2 3.8-44 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" Enclosure 3 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 A description of the DC sources is provided in the Bases for LCO 3.8.4, "DC Sources- Operating."

APPLICABLE The initial conditions of Design Basis Accident and transient analyses SAFETY 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).

LCO 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)

HATCH UNIT 1 B 3.8-63 REVISION 33

DC Sources - Shutdown B3.8.5 BASES LCO the corresponding control equipment and interconnecting cabling --

(continued) 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).

APPLICABILITY 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.

ACTIONS A.1 A.2.1 I I 1\.2.2~ 1\.2.3. and A.2.4 A.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 return ing the battery to the fully charged state and restoring a fully (continued)

HATCH UNIT 1 B 3.8-64 REVISION 33

DC Sources - Shutdown B3.8.5 qualified charger to OPERABLE status in a reasonable tim e 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 minim um established float voltage. Restoring the battery terminal voltage to greater than or equal to the min imum established float voltage provides good assu rance that. within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . the battery w ill be restored to its fully charged condition (Required Action A.2/8 .2) from any discharae that mlg.bt.bave occu rred due to the charger inoperability.

A discharged battery having termi nal 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 fu lly charged state under this condition is sim ply a function of the amounLof the previous discharge and the recharge characteristi c of the battery. Thus there is good assurance of fully recha rging the battery with in 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 voltag e cannot be restored to greater than or equal to the minim um 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 curre nt-limiting mode. a faulty charger is indicated. A fau lty charger that is incapable of maintaining established battery terminal float voltage does not orov ide assu rance that it can revert to and operate properly in the current limit mode that is necessary during the recovery period following a batte ry discharge event that the DC system is designed for.

If the charger is operating in the current limit mode after 2 hou rs 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 fu lly charged condition i!JJ.his case is a function of the battery charger capacity. the amount of loads on the associated DC system. the amou nt of the orevious discharge. and the recharg e characteri stic of the battery. The charge tim e 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 th e 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 pe riod the batterv float cu rrent 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}

HATCH UNIT 1 B 3.8-65 REVISION 33

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 1E 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)

HATCH UNIT 1 B 3.8-66 REVISION 33

DC Sources - Shutdown B3.8.5 BASES ACTIONS 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.

SURVEILLANCE SA 3.8.5.1 REQUIREMENTS 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)

HATCH UNIT 1 B 3.8-67 REVISION 33

DC Sources - Shutdown 8 3.8.5 BASES SURVEILLANCE SR 3.8.5.2 (continued)

REQUIREMENTS 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.

REFERENCES 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.

HATCH UNIT 1 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 A description of the DC sources is provided in the Bases for LCO 3.8.4, "DC Sources- Operating."

APPLICABLE The initial conditions of Design Basis Accident and transient analyses SAFETY 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).

LCO 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)

HATCH UNIT2 B 3.8-63 REVISION 39

DC Sources - Shutdown B 3.8.5 BASES LCO the corresponding control equipment and interconnecting cabling --

(continued) 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).

APPLICABILITY 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.

ACTIONS A.1. ,1\.2.1, A.2.2. A.2.3. and A .2.4 A.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)

HATCH UNIT 2 B 3.8-64 , REVISION 39

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 termi nal 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 floa t 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)

HATCH UNIT 2 B 3.8-65 REVISION 39

DC Sources - Shutdown B 3.8.5 Requ ired 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 resto ring batterv terminal voltage to greater than or equal to the minimum established float voltage has been used <e.g .. balance of plant non-Class 1E 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)

HATCH UNIT2 B 3.8-66 REVISION 39

DC Sources - Shutdown B 3.8.5 BASES ACTIONS 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.

SURVEILLANCE SR 3.8.5.1 REQUIREMENTS 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)

HATCH UNIT2 B 3.8-67 REVISION 39

DC Sources - Shutdown B 3.8.5 BASES SURVEILLANCE SR 3.8.5.2 (continued)

REQUIREMENTS 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.

REFERENCES 1. FSAR, Chapter 6.

2. FSAR, Chapter 15.

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

HATCH UNIT2 B 3.8-68 REVISION 39

v t e Letter Sequence Other
CAC:MF6611, (Approved, Closed)
Initiation Request, Request, Request Acceptance, Acceptance Supplement Administration Questions 13 July 2016 17 October 2016 Answers 12 August 2016 Results Approval Other: NL-16-1564, Revised Technical Specifications Pages for Technical Specifications Revision Request to Implement TSTF-500, DC Electrical Re-Write.
MONTHYEAR2016-07-12 [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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