ML20150A900

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Comment Opposing Proposed Rule 10CFR50 Re leak-before-break Technology.Further Use of Subj Technology for ECCS Would Reduce Safety Assurances & Safety Benefits.Experience Shows That pipe-thinning Progresses Faster than Expected
ML20150A900
Person / Time
Site: Surry, 05000000, Trojan
Issue date: 07/04/1988
From: Birnie P
MARYLAND NUCLEAR SAFETY COALITION
To:
NRC OFFICE OF THE SECRETARY (SECY)
References
FRN-53FR11311, RULE-PR-50 53FR11311-00013, 53FR11311-13, XXFRXXXX-XXXXX, NUDOCS 8807110085
Download: ML20150A900 (1)


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Secretary of the Commission United States Nuclear fregulatory Commission 1717 11 Street, N.W.

Washington, D.C.

20555 St.3dECT :

COT!ENT ON LEAF-BEFORE-BREAK TECHNOLO_GX

Dear Sirs:

We believe that further use of the Leak-Before-Break technology for emergency core cooling systems would in fact R. EDUCE safety assurances and safety benefits.

previous experience har shown that pipe-thinning and deterioration has progressed faster than expected, and in reactor.ystems where thinning was not expected, as the.Surry and Trojan plants demonstrated.

We believe that there are no short cuts t.o safety, that Its present use of leak-before-break technoloey is obviously unreliable, and that mandatory, periodic piping inspections of all pipine should be required at all operating nuclear power plants.

We urce the NRC to use the most conscientious care in helping insure puM1 : safety and henith.

Thank sou.

Sincerely, ggh h t

Pat'ricia Birnie MW 8807110005 000'/04 i

PDR PR 50 53FR113*.1 PNV e i

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