ML20062D791

Forwards Rev Insvc Inspec Prog in Response to 780910 NRC Ltr.Table 5.4-1 of ISI Prog Has Been Rev to Require Leak Rate Testing of Valves Needed to Perform Pressure Isolation Function.List of Alternate Valves Is in Att a

ML20062D791
Person / Time
Site:	Peach Bottom
Issue date:	11/22/1978
From:	Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Ippolito T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20062D794	List: ML20062D791 ML20062D796
References
NUDOCS 7811300217
Download: ML20062D791 (3)

Text

, gy, :c o-2 77 PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 sm Los t.oALvnen (2151 e415001 vsCs PotssoaNT ELECTnic PSICOUCTION November 22, 1978 L

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Mr. Thomas A. Ippolito, Chief 'q/ )

. Operating Reactors 3 ranch #3 ,3 ) I Division of Operating Reactora U.S. Nuclear Regulatory Commission ..; /] ' y Washington, DC 20555 / -

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Dear Mr. Ippolito:

The enclosed Inservice Inspection Program is being submitted to you for your review. The Plan has been revised in response to your letter of August 10, 1978, and to implement conaitements made in our letter of September 20, 1978. Several new exemptions to the code have been added in sections 5.~3.10, 5.'i.3, 5.5.6 and 5.5.7 based on experience gained since the ISI , s was implemented. Changes to the previously subst, te d p ruram a re indicated by a vertical bar in the margin. .e o e r to p rovide sufficient time to adequately revise our 5 n :n1 a for implementation of the ISI Plan regarding fynctioud testing of pumps and valves we propose that those requirements become effective during the f ourth cal'endar month f ollowing NRC approval of the revised plan.

Your letter of August 10, 1973 discussed the need to laak test selected valves to verify a pressure isolation function; i.e. valves that form an interface between high and low pressure sections of safety systems connected to the reactor coolant p re s su re boundary. In response to this concern, Table 5.4-1 o f .

the enclosed ISI program has been revised to require leak rate testing of valves needed to perform the pressure isolation ummy

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Page 2 function. Due to plant design constraints hak rate testing of each of the valves listed in you r Augus t 10, 1973 letter is i::tp ra c t i ca l . In these cases alternate valves have been selected for testing. A list of these alternate valves is shown on Attachment A to this letter.

Should you have any questions on the above, please do not hesitate to contact us.

Very truly yours,

/ . r n,. ,y, ,- :

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Page 3 Attachment A System Valve (s) Tested Alternate To' Valve Section XI Standby Liquid Control VV-11-17 No XV-11-14(A.B).

VV-11-16 Yes Core Spray A0-14-13(A,B) No MO-14-11(A,B)

A0-14-12(A,B) Yes RHR MO-10-17 Yes A0-10-46(A,B) No MO-10-154(A,B)

MO-10-25(A,B) Yes RCIC A0-13-22 No MO-13-20,MO-13-30 MO-13-21 Yes HPCI A0-23-18 No M0-23-2':,MO-23-30 MO-23-19 Yes

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