ML19325E468

Summary of Change 2 to Rev 6 to Pump & Valve Inservice Test Plan.

ML19325E468
Person / Time
Site:	Waterford
Issue date:	10/31/1989
From:	LOUISIANA POWER & LIGHT CO.
To:
Shared Package
ML19325E466	List: ML19325E465 ML19325E468
References
PROC-891031, NUDOCS 8911070177
Download: ML19325E468 (5)

Text

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. l WATERFORD 3 NUCLEAR SES Pump and Valve Inservice Test Plan Revision 6 Change 2  :

summary of Changes ,

Two manual gate valves (ACC-116A and ACC-1168) and two check valves (ACC-114A and ACC-114B) are being added to the scope of testing. It is undesirable to test these valves while the plant is in power operation or in cold shutdown due to the probability of chemical contamination of the EFW System,. Consequently, two relief requests 3.1.57 and 3.1.58 have been written to address testing of these four valves during refueling outages when the lines can be drained, flushed and refilled with water from the Condensate Storage Pool.

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' i LP&L Pump And Valve Revision 6 Ch. 2 l Inservice Test' Plan l i

TABLE OF CONTENTS l t

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1.0 PURPOSE  ;

- 2.O REFERENCES I r

f 3.0 DEFINITIONS  ;

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4.0 RESPONSIBILITIES 5.0 TEST PLAN  !

i 6.0 ATTACHMENTS LIST OF EFFECTIVE PAGES l Title Revision 6 Ch. 1  ;

1-183 Revision 6 Ch. 1 95A Revision 6 Ch. 2 i 180A Revision 6 Ch. 2  !

180B Revision 6 Ch. 2  !

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,Inservico T:st Plan i

3.1.57 Test Requirement, Exercise valves for operability at least once every three (3) f i months. l I

i Basis for Relief The operability testing (full or partial stroke) of these '

valves during normal operation or cold shutdown would cause a  !

deterioration of Energency Peedvater (ETW) chemistry. Due to elevation differences, the water in the associated ACCW Wet f Tower would drain into the Condensate Storage Pool (CSP) and (

i ETW System anytime that these valves are open. Water in the I

Wet Towers is treated with chemicals that are not desirable, j on a routine basis, in the CSP and ETW System. The only [

acceptable rethod of testing these valves is to isolate the j lines and stroke the valves at refueling outages when the {

lines can be drained, flushed, and refilled without contami- [

nating interconnecting systems, f I

Alternate Testing i L

These valves will be full-stroke tested for operability during j each refueling outage.  !

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This relief request is prepared in accordance with 10CTR50.55a(g) since Attachment 1 of Generic Letter 89-04 does not address  ;

testing of manual gate valves. This approach is in accordance {

with Section D entitled " Program Updates / Revisions", of the j Generic Letter. l I

I Attachment 6.6 (47A of 47) 180A W32085BE

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.. LP&L Pump And Valve Revisico 6 Ch 2 I

. ,1 hervice R at Plc3 1 3.1.58 Test Requirement Exerci6e check valves for operability at least once every three (3) months. I Basis for Relief l

, Operabf.11ty testing (full or partial stroke) of these normally- l

[ closed check valves per IW-3520 requires flow verification from the ACCW Wet Towers to the CSP and EW System with' the ,

y ACCW Pumps operating. Pumping ACCW water into the EW System  !

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causes undesirable chemical contamination of EW, since water

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in the Wet Towers is treated with chemicals that are not i desirable, on a routine basis, in the CSP and EW System. The j only acceptable method of testing these check valves is to i i

isolate the lines, disassemble the check valves and manually j stroke the check valve disks at refueling outages when the  ;

lines can be drained, flushed, and refilled without contami- I nating interconnecting systems, i Alternate Testing .

These check valves will be disassembled and manually exercised by hand to their full-open position at each refueling outage.

This relief request complies with Generic Letter 89-04, j Attachment 1, Position 2, entitled " Alternative to Full-Flow Testing of Check Valves". f i

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Attachment 6.6 (47B of 47) 180B W320858B 1

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