ML20117G678

Proposed Tech Specs Re Surveillance Requirements for Safety/Relief Valves

ML20117G678
Person / Time
Site:	Grand Gulf
Issue date:	08/27/1996
From:	ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20117G668	List: ML20117G666 ML20117G678
References
NUDOCS 9609050280
Download: ML20117G678 (9)

Text

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. GNRo 96/00096 Attachment 2 page 1 of 9 i

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4 PROPOSED CHANGE TO THE OPERATING LICENSE i

Revised Technical Specification and

, Technical Specification Bases pages  ;

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! Cross reference of attached pages to pages originally submitted via GNRO-96/00037

] Attachment 4.

I This submittal Attachment 2 Replaces GNRO-96/00037 Attachment 4 page1 Not Applicable page 2 page1 page 3 page 3 page 4 Not Applicable - New Insert page 5 page 5 page 6 page 7 page 7 Not Applicable - New insert page 8 page 9 page 9 page 12 9609050200 960827 PDR ADOCK 05000416 p PDR

.- _- . .. . . . .. .. _ . - . . = -. _. . _ . _

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GNRO-96/0oO96 S/RVs Attachment 2 3.4.4

,page 2 of 9

!' SURVEILLANCE REQUIREMENTS (continued) 1 SURVEILLANCE FREQUENCY 5

i SR 3.4.4.2 -------------------NOTE-------------------- ,

Valve actuation may be excluded. '

i Verify each required relief function S/RV 18 months i actuates on an actual or simulated 4

automatic initiation signal. Shbn 1 k

! SR 3.4.4.3 ---------------- --NOTE-------------------- ^Aw bou i

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor- steam pressure and flow are W4 %.

adequate to perform the test. ' Tnse v'c.a Te.dh

........................................... p* SN" l I

Verify each required S/R a ch d v O M manually actuated.

when k M Z'on S' TEST a

b- '

BASIS for each valve solenoid GRAND GULF 3.4-11 Amendment No. 120

h S/RVs GNRO 96/ooo96 '

Attachment 2 j p

, age 3 gfg SURVEILLANCE SR 3.4.4.3 (continued)

REQUIREMENTS

'a gamagingth valve, Also, ade ate steam flow must e assing thro h the main turbine r turbine bypass va es to ntinue to co trol reactor pressu when the S/RVs di t j i'

I s am flow upon pening. Sufficien time is therefore al wed after th required pressure a flow are achieved pe 'orm this test. Adequate pressure a which this test is to e performed is nsistent with the p ssure recommended by le valve manufac rer. Plant startup allowed prior to pjrforming this te because valve OPERA LITY and the I setpgints for overpress re protection are ver ied, per ASME requiPements,priortoylveinstallation. Th efore, this )

SR is modified by a Note at states the Surveil nce is not requi ed to be performed u il 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after rea or steam pressu e and flow are adequ e to perform the test. The 12 hou allowed for manual a tuation after the requ ed pressur is reached is suffici t to achieve stable h(shn \

conditio s for testing and prov es a reasonable time complete he SR. If the valve f 1s to actuate due only to ,

i the failu of the solenoid but i capable of opening on

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4 l overpressu e, the safety function o_ the S/RV is y nsider

\ Q BEJ -

g7,,g ,,,,4,g pg, g. n A< ThE""" STAGGERED TESTL BASIS Frequency ensures AA.c Mg_ d h_ach solenoid for each S/RV*is alternately tested.

that e The l

Frequency 4was developed based on the S/RV tests requirea Dy the ASME Boiler and Pressure Vessel Code.

g 15'N Section XI (Ref. 1)f" Op ing exper e has s tha 1

ghe omponents u lly pass Sur e when 6 3,4-9/ A 3 yarfnema + tha in mon _ eauenc Therefore, e L

Frequency was concluded to be acceptable from a reliability standpoint.

REFERENCES 1. ASME, Boiler and Pressure Vessel Code, Sections III and XI.

2. UFSAR, Section 5.2.2.2.3.

3. UFSAR, Section 15.

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GRAND GULF B 3.4-21 Revision No. O I

I GNRO-96/00096 l Attachment 2 page 4 of 9 l

l INSERT B 3.4-21 A as implemented by the Inservice Testing Program of Specification 5.5.6. The testing Frequency required by the Inservice Testing Program is based on operating experience and valve performance.

ke_MI3lon 1 1

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j . GNRO-96/00096 ECCS-Operating

= Attachment 2 4 page 5 of 9 3.5.1 i

i SURVEILLANCE REQUIREMENTS (continued) j SURVEILLANCE FREQUENCY t

SR 3.5.1.5 -------------------NOTE--------------------

4 Vessel injection / spray may be excluded.

Verify each ECCS injection / spray subr/ stem 18 months >

i actuates on an actual or simulated l automatic initiation signal.

SR 3.5.1.6 -------------------NOTE--------------------

l Valve actuation may be excluded.

j Verify the ADS actuates on an actual or 18 months simulated automatic initiation signal.

Re,s te%

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! SR 3.5.1.7 -------------------NOTE--------------------

Tn er:ccebNou QAgg Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure and flow are gg l l 4

. adequate to perform the test. 1^*fM " M ,^3j j -..........................................

gr%g

[ Verify eahADS valve when manually M on a

. y } j A X, actuated. K a STAGGERED TEST ,

4 ,

BASIS for each

':T'M *M /  !

l valve solenoid i I l SR 3.5.1.8 Verify the ECCS RESPrASE TIME for the HPCS 18 months i System is within linits.

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9 GRAND GULF 2.5-5 Amendment No. 120

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ECCS-Operating i - B 3.5.1

, GNHO-96/00096

Attachment

page 6 of 9 SURVEILLANCE SR 3.5.1.7 (continued) <

i REQUIREMENTS -

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OPERABILI and the setpoin for overpressure pr action er ASNE requir i i

k q are verifie , erefore, this S ts,s modified

) installation.

prior to valve by a N e that tes the Surve ance is not requ to be performe i

! unt 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> afte *eactor steam pre ure and flow ar adequate o perfone tl test. SR 3.5 1. and the LOGIC  !

, _ SYSTEM F ONAL TEST formed in LCO 3. 5.1 overlap th's i

t j gg ,A provide e late testing of e assumed A c.%< hic [safety Surveillance functio -

I The W A t ab M , STAGGERED TEST BASI 3 ensures that both solenoids for each ADS valvegre alternately _

sted.

he r . -- = m.y i; L- ;6 on we

" Surve a to pe re this l nee unde the condit ns that ap y just p or to r8'3,% 7*A }% r durin startup t

a plan outage a he pote al

! f unplann transion Operat experien l

has sh i e

)3A tha these c onents us lly pass SR when rformed j i a the month F auenev. wh h it hu

,i ~ aa tha re 11  ;

uc ycle.1 Therefore, the Frequency was concluded to be 4

g .

accepfable from a reliability standpoint. l Rw Mo n 1

l SR 3.5.1.8 -

This SR ensures that the HPCS System response time is less than or equal to the maximum value assumed in the accident analysis. Specifte testing of the ECCS actuation j instrumentation inputs into the HPCS System ECCS SYSTEM RESPONSE TIME is noi required by this SR. Specific response

• time testing of thh instrumentation is not required since 1 these actuation channels are only assumed to respond within the diesel generator start time; therefore, sufficient margin exists in the diesel generator 10 second start time when compared to the typical channel response time (milliseconds) so as to assure adequate response without a specific measurement test. The diesel generator starting and any sequence loading delays must be added to the HPCS System equipment response times to obtain the HPCS System

. ECCS SYSTEM RESPONSE TIME. The acceptance criterion for the

.HPCS System ECCS SYSTEM RESPONSE TIME is s 27 seconds.

(continued)

GRAND GULF B 3.5-13 Revision No. 1

(> 0

. GNRO-96/00096 Attachment 2 page 7 o,f 9 INSERT B 3.5-13A The Frequency of the required relief-mode actuator testing was developed based on the tests required by the ASME Boiler and Pressure ;

Vessel Code,Section XI as implemented by the Inservice Testing '

Program of Specification 5.5.6. The testing Frequency required by the  ;

7nservice Testing Program is based on operating experience and valve j performance.

St>b$\on S l

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[ l l l l llS Values

. GNRo-96/00096 3.6.1.6 Attachment 2 pago 8 of 9 NON I f ' SURVEILLANCE REQUIREMENTS s SURVEILLANCE

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FREQUENCY I

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SR 3.6.1.6.1 ------------------NOTE------------------- i bis.'nl

, Not required to be performed until 6^*

M cNet.

12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure and wA h flow are adequate to perform the test. TMe.r vi <5t.

.m ga !,3 er p m 5' Qrc' ^^-O i

Verify each* LLS valve - = when manually m th on a actuated. STAGGERED TEST eg.\it:Q- mh BASIS for each g 4 A c- p eokt.s valve solenoid l

SR 3.6.1.6.2 ------------------NOTE--------- ^^--------

! Valve actuation may be excluded.

j .........................................

Verify the LLS System actuates on an 18 months i actual or simulated automatic initiation l signal.

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l GRAND GULF 3.6-21

. Amendment No. 120

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. GNRO-96/OOO96 .i Anschmern 2 1 page 9 of 9

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l SR 3.6.1.6.1.a BASES Insert i 1

1 A manual actuation of each required LLS valve (those valves removed and replaced to satisfy SR 3.4.4.1.) is performed to verify that the I valve is functioning properly. This SR can be demonstrated by one of  ;

two methods. If performed by method 1), plant startup is allowed

• prior to performing this test because valve OPERABILITY and the setpoints for overpressure protection are verified, per ASME l requirements, prior to valve installation. Therefore, this SR is [

modified by a Note that states the Surveillance is not required to be l performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure and flow are  !

adequate to perform the test. The 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> allowed for manual  ;

actuation after the required pressure is reached is sufficient to achieve stable conditions for testing and provides a reasonable time to complete the SR. If performed by method'2), valve OPERABILITY has been demonstrated for all installed LLS valves based upon the i successful operation of a test sample of S/RVs.

1) Manual actuation of the LLS valve, with verification of the response of the turbine control valves or bypass valves, by a change in the measured steam flow, or any other method suitable  !

to verify. steam flow (e.g. , tailpipe temperature or pressure). r Adequate reactor steam pressure must be available to perform this test to avoid damaging the valve. Also,' adequate steam flow must be passing through the main turbine or turbine bypass valves to continue to' control reactor pressure when the LLS valves divert steam flow upon opening. Sufficient time is therefore allowed  !

after the required pressure and flow are achieved to perform this test. Adequate pressure at which this test is to be performed is consistent with the pressure recommended by the valve j manufacturer.

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2) The sample population of S/RVs tested each refueling outage to  !

satisfy SR 3.4.4.1'will be stroked in the relief mode during "as- '

found" testing to verify proper operation of the S/RV. The successful performance of the test sample of S/RVs provides  :

reasonable assurance that all LLS valves will perform in a  !

similar fashion. After the S/RVs are replaced, the relief-mode actuator of the newly-installed S/RVs will be uncoupled from the J S/RV stem, and cycled to ensure that no damage has occurred to

" the S/RV'during transportation and installation. This verifies kSN that each replaced S/RV will properly perform its intended

% function.

D

N, The STAGGERED TEST BASIS Frequency ensures that both solenoids for

! each LLS valve relief-mode actuator are alternately tested. The

. Frequency of the required relief-mode actuator testing was developed l based on the tests required by the ASME Boiler and Pressure Vessel

' Code,Section XI as implemented by the Inservice Testing Program of

Specification 5.5.6. The testing Frequency required by the' Inservice i Testing. Program is based on operating experience and-valve

performance. Therefore, the Frequency was concluded to be acceptable

from a reliability standpoint.

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