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Proposed Tech Specs Reflecting Addition of Requirements for Load Sequencer
	ML20127N788
Person / Time
Site:	Vogtle
Issue date:	01/22/1993
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20127N769	List: ELV-03945, Application for Amends to Licenses NPF-68 & NPF-81,revising TS by Adding Requirements for Load Sequencer; ML20127N788;
References
	NUDOCS 9302010074
	Download: ML20127N788 (7)
	v • d • e

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, EllCLOSURE 3 10GTLE ELECTRIC GEllERATitlG PLA!!T f 4

REQUEST TO itEVISE TECHilICAL SPECIFICATIOtiS ADDITIO!1 OF LOAD SEQUE!1CFR ;

1 llUi1HUCT,10fiS FOR I!1CpHP_QJnTLQ)) ,

The propoaud change to the Vogtle Electrlc Generating plant Technical l Specifications.would be incorporated as follows: ,

RenoSe Pace .Inaert pac 1t !

l 3/4 3-25 and 3/4 3-26 3/4 3-25 and 3/4 3-26 3/4 8-1 and 3/4 6-2* 3/4 8-1 and 3/4 P-2*

, 3/4 8-3 and 3/4 8-4* 3/4 8-3 and 3/4 8-4* !

B 3/4 8-1 and B 3/4 8-2* D 3/4 8-1 and B 3/4 8-2* .

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'P 9302010074 930122-PDR

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ADOCK GS000424 i P PDR.

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,T_ABLE A 3.3-2 (Continued)

TABLENOTATIOJLS a

Trip function may be blocked in this H0DE below the P-11 (Pressurizen Pressu:e Interlock) Setpoint. -- "

b 1rin' function automatically blocked above P-11 and may be blocked below P-11 when Safety Injtetion on low steam line pressure is not blocked.

c Ouring mo.ssent of irradiattd fuel or rovement of 1 cads over irradiated i

fuel within cuntainment.

d The provisions of Specification 3.0.4 are not applicable.

e Ouring movement of irradiated fuel or movement of loads over irradisted fuel.

f Not applicable if one main steam isolation valve and associated bypass isc-lation valve per steamline is closed.

g Containment Ventilatior, Radiation (RE-2565) is treated as one channel ind is considered OPERABLE if the particulate (RE-2565A) and iodine moniturs (RE-2565B) are OPERABLE or the noble gar rnordtor (RE-25650) is OPERABLE.

h Manual initiation of Auxiliary Feedwater is accomplished via the pump handswitches. .

i Whenever irradiated fuel is in either storage pool.

i j for actions associated with inoperable instrumentation, follow actions specified in Specification 3.9.12.

ACTION STATEMENTS ACTION 14 - With the number of OPERABLE channels ona less than the Minimuin Channels OPERABLE requirement, be in at least HOT STANDSY :

within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLO SHUT 00WN within the following 3C houcs; however, one channel may be bypassed for op to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months i

^N for surveillance testing per Specification 4.3.2.1, provided the other channel is 00ERABLE p ACTION 15 - With the number of OPERABLE channels one less than the Total

! Number of Channels, operation may proceed until perforasance of the next required ANALOG CHAhNEL OPERATIONAL TEST provided the inoperable channel is placed in the tripped condition within.

I hour.

L ACTION 16 - With the number of OPERABLE channels less than the Minimum l

Channels OPERABLE' requirement, comply with the ACTION requirerrants of Specification 3.9.9 (Mode 6). '

( w l N c banute lSiNopralle b e 50 a n In o,M :0 N b* V9"*

l ff th /lc JC7 top s/ den d of spec l{c e bon L % 4 / {or dh

'thoftro$!e hai S'efwceQ v0GTLE UNITS - 1 & 2 3/4 F25

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1 TABLE A 3-2 (Continued)

AlRONSTATEMENTS(Continued) i 1

l ACTION 17 - With the number of OPERABLE channels one less than the Total Number of Channels operation may proceed provided the inoperaoie

~ channelisplacedInthebypassedconditionandthe.Hinimum Channels OPERABLE requirement is met. One additional channel i niof be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing per Specification 4.3.2.1.

' ACTION 18 - With one less than the Minimum Channels OPERABLE requirement, operation may continue provided the containment purge supply and exhaust valves are closed within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . i I

ACTION 19 - With the nurber of OPERABLE channels one less than the Minimum i Channels OPERABLE requirement, restore the inoperable channel l to OPERM'.'.E status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months , or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

ACTION 20 - With the number of OPERABLE channels one less than the Total Number of Channels, STARTUP and/or POWER OPERAT]DN ma proceed provided the following! Unll15 Q *Mpt.onditions clenc/s are lao r. //c sl;iffTt*(e*/?if$%j'%l"

a. inoperabfec O """ U* '* **

Tan [nel is plac]ed Yn~th'[' tripped con

1 satgsfied:C "f

within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , and j

b. The Minimum Channels CPERABLE requirement is met; however, one additional channel may be bypassed for up to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months for surveillance testing of other channels per Specification !

4.3.2.1. I 1

ACTION 23 - With the number of OPERABLE Channels less than the Minimum Channels OPERABLE requirement, within I hour determine by observa-tion of the associated permissive status light (s) that the inter-lock is in its required state for the pisting plant condition, or apply Specification 3.0.3.

ACTION 22 - With the number of OPERABLE channels one less than the Minimum Channeh OPERABLE requirement, be in at least HOT STANDBY _

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

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ; however, one channel may be bypassed for up to-2 hours :

for surveillance testing, per Specification 4.3.2.1 provided the other channel is OPERABLE.

l AC110N 23 - With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel )

to OPERABLE status within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months or be in at least HOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in at least HOT SHUTOOWN within the following '

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .(W H chang l3 in op era l/r duc 'fo an one cra dle

/ o d s e qvere s e, ct jf b +b e AC 7roy .1 b lroth l o F 4eo(h*ca l'o"

, 3.1f. l.1 for s. l,rpro l/r /p t tegvenc er; }

V0GTLE UNITS - 1 & 2 3/a 3-26

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3/4.8 ELECTRICALPOWERSYSTEPJ 3/4.8.1 A.C. SOURCES OPERATING L1HITING CONDITION FOR OPERA 110N

( 3.8.1.1 As a minimum, the followir.g A.C. electrical powr sources shall be OPERABLE:

a. Two physically incependent circuits between the offsite transmission network and the onsite Class IE Distribution Systemt s #

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

l 1) A day tank containing a ininimum volume of 650 ga'lons of fuel (52% of instrument span) (LI-9018, L1-9019),

2) A separate Iuel Storage System containing a minimum volume of

68,000 allons of fuel (76% of instrument span) (L1-9024, t.1-9025 , and y 3) A separate fuel transfer pump, APPLICABILITY: HODES 1, 2, 3, and 4.

ACTION:

a. With one offsite Circuit of the aboVc* required A.C. elect"iCal power sources inoperable, demonstrate the OPERABILITY of 'hc remaining A.C.

sources by performin0 Surveillance Requirement 4.8.1.1.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once par 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter. If either diesel generator has not been successfully tested within the past a bours, demonstrate its OPERABILITY by performing Surveillance Requirements 4.8.1.1.2.a.4 and 4.6.1.1.2.a.5 for each such diesel generator, separately. ,vithin 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months unless the diesel generator is already operating. Restore the offsite circuit to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at le:,st HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b. With either diesel generator inoperable, demonstrate the OPERABILITY

, of the above required A.C. offsite cources by performing Surveillance Requirement 4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter. If the diesel generator became inoperable due to any cause other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by perform-ing Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.L.5 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *#. Restore the inoperable diesel generator to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

Th test is required to be completed regardless of when the inoperable diesel generator is restored to OPERABILITY,

The diesel shall not be rendered inoperable by activities perforned to 1 support testing pursuant to the ACTION Stattment (e.g., an air roll). '

V0GTLE UNITS - 1 & 2 3/4 8-1

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ELECTRICAL p0WER SYSTEMS

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LIMIT _ING CONDITION FOR OPERATION i

ACTION (Continued), .

on the time of the initial loss of the remaining inoperable offsite j a.c. circuit. A successful test (s) of diesel OPERABILITY per Surveil-lance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5 performed under l this ACTION Statement for the OPERABli diesels satisfies the diesel '

generator test requirement for ACTION Statement a.

. With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two of fsite A.C. circuits by performing the require- '

, e,ents of Specification 4.8.1.1.1.a. within I bour and at least once per

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; restore at least one of the inoperable diesel i generators to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT-

l STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the l following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Following restoration of one diesel generator ;

unit, follow ACTION Statement b with the time requirement of that ACTION Statement based on the time of initial loss of the remaining- ,

inoperable diesel generator. A successful test of diesel OPERASILITY J l

per Surveillance Requirements 4.8.1.1.2.n.4 and 4.8.1.1.2, a.5 performed under this ACTION Statement for a restored to OPERABLE diesel satisfies

the diesel generator test requirements of ACTION Statement b.

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l SURVEILLANCE REQUIREMENTS ., ,_ _ , , , , , _

l 4.8.1.1.1 Each of the above required inoependent circuits between the offsite transmission network and the Onsite Class IE Distribution System shall be: :

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

l 4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

l a. In accordance with the frequency spa.eified in Table 4.8-1 on a -

STAGGERED TEST BASIS by:

1) Verifying the fuel level in the' day tank (L7-9018, tI-9019),

2) Verifying the fuel level in the fuel storage tank (LI-9024,

. LI-9025), .

3) Verifying the fuel transfer pump starts and transfers fuel from the storage system to the day tank,

4) Verifying the diesel starts and that the generator voltage and frequency are 4160 + 170 -135 volts and 60 + 1.2 H2 within ,

11.4 seconds

after the start signal.. The dTesel generator shall be started for this test by using one of the following signals:

All diesel generator starts for the purpose of surveillance testing as required I by Specification 4.8.1.1.2 may be preceded by an engine prelube period as '

recommended by the manufacturer so that the mechanical stress and wear on the diesel engine is minimized.

I V0GTLE UNIi5 - 1 & 2 3/4 8-3

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3/4.8 ELECTRICAL POWER SYSTEMS i

BASES ,,

i 4.8.2, and 3/4.8.3 A.C. SOURCES, D.C. SOURCES, and ONSI.TE POWER The OPERABILITY of the A.C. and 0.C power sources and associated distribu-tion systems during operation ensures that suf ficient power will be available to supply the safety-related equipment required for: (1) the safe shutdown of the facility, and (2) the mitigation and control of accident-conditions within the facility. The minimum r,pecified independent and redundant A.C. ar.d D.C.

power sources cnd distribution systems satisfy the requirements of General

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

The ACTION rcqu~rements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are con-sistent with the initial condition af,sumptions of-the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and 0.C. power i

sources and associated distribution systems OPERABLE during accident conditions <

coincident with an assumed loss-of-of fsite power and single failure of the other onsite A.C. tource. The A.C. and D.C. source allowable out-of-service times are based on Regulatory Guide 1.93, " Availability of Electrical Fower Sources," December 1974 and Appendix A to Generic Letter 84-15. " Proposed Staf f Position to Improve and Maintain Diesel Generator Reliability." When one diesel generator is inoperable, there is an additional ACTION requirement to '

verify that all required systems, subsystems, trains, components and devices, ,

that depend on the remaining OPERABLE diesel generator as a source of emergency ,

power, are also OPERABLE, and that the steam-driver, auxiliary feedwater pump is OPERABLE. This requirement is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable.

The term.. verify, as used in this context scans to administrative 1y check by examining logs or other information to determine if certain components are O, out"of service for maintenance or other reasons. It does not mean to perform ;i the Surveillance Requirements needed to demonstrate the OPERABillTY of the component.

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The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that:

(1) the facility can be maintained in the shutdown or refuelir.g conoition for ;

extended time periods, and (2) sufficient instrumentation and control capa-bility is available for monitoring and maintaining the unit status. ,

The Surveillance Requirements, for demonstrating the OPERABILITY of the

diesel generators are based on the_ recommendations of Regulatory Guides 1.9r Revision 2 " Selection of Diesel Generator Set Capacity for Standby Power Supplies," December, 1979; 1.108,_" Periodic Testi_ng of Diesel Generator Units-Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, t

- August 1977; and 1,137,

Fuel-011 Systems for Standby Diesel Generatcas,"

Revision 1, October 1979, Appendix A to Generic Letter 84-15 and Generic Letter 83-26, " Clarification of Surveillance Requirements for Diesel Fuel Impurity Level Tests." '

V0GTLE UN1 5 - 1 & 2 B 3/4 8-1

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l The ACTION times specified for an inoperable automatic load :

acquencor are based on the timos allowed when a combination of one i diocol generator and one offsito circutt is inoperablo. This

, conservatively addresses any consequential offects of an jnoperable -;

load sequencer on other engineered safety features, and avoids '

having to evaluate the ACTION based on table 3.3-2. :

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ML20127N788

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