ML20053C191

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Provides Supplemental Info to Re IE Bulletin 80-25,overpressurization of Safety/Relief Valve Pneumatic Supply Sys.Mod to Provide Backup Pneumatic Supply Utilizing Compressed Gas Cylinders Undertaken
ML20053C191
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 05/19/1982
From: Daltroff S
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To: Haynes R
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
REF-SSINS-6820 IEB-80-25, NUDOCS 8206010561
Download: ML20053C191 (1)


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PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 SHIELDS L. DALTROFF as.ach icr$ $ som May 19, 1982 Docket Nos. 50-277 50-278 IE Bulletin 80-25 Mr.

R. C. Haynes, Administrator US Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19046

Dear Mr. Haynes:

This letter provides supplemental information to our letter of March 18, 1981, ( S.

L.

Daltroff, PECO to B.

H.

Grier, U SNRC) regarding IE Bulletin 80-25 concerning overpressurization of safety / relief valve pneumatic supply system.

Modifications are being undertaken which will provide a back-up pneumatic supply utilizing compressed gas cylinders.

Appropriate overpressure relief devices are being installed in this back-up system.

In addition, a high pressure alarm sensor will be installed as part of these modifications.

This alarm sensor will be located exterior to containment, between the compressed gas cylinders and the balance of the system, and annunciate, as a general alarm, in the control room.

Appropriate direction to operating personnel will be instituted upon completion of this modification so that high pressure will receive proper attention.

This modification has been discussed with our NRC Resident Inspectors.

If there are any further questions, do not hesitate to 1

contact us.

Very trul,yours, ( )

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J. Cowgill 8806UlU C

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