ML20244D263

From kanterella
Jump to navigation Jump to search
Concurs W/Nrc Proposal to Issue Proposed Amend to 10CFR50.61 Re Fracture Toughness Requirements for Protection Against PTS Events
ML20244D263
Person / Time
Issue date: 04/11/1989
From: Remick F
Advisory Committee on Reactor Safeguards
To: Stello V
NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO)
References
ACRS-R-1347, NUDOCS 8904210244
Download: ML20244D263 (1)


Text

_ _ _ _ _ _ _ _ _ _. _ _ _ _ _ _ _ - _ _ _ _ _ _ _ -

~

I, OdW-M7

.}.

A

&f

.f* **%q#o,,.

UNITED STATES 8

NUCLEAR REGULATORY CO'MMISSION g

{

r ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, D. C. 20$55 April 11,1989 Mr. Victor Stello, Jr.

Executive Director for Operations U.S. Nuclear Regulatory Comission Washington, D.C. 20555 j

Dear Mr. Stello:

SUBJECT:

PROPOSED AMENDMENT TO 10 CFR 50.61, " FRACTURE TOUGHNESS REQUIRE-MENTS FOR PROTECTION AGAINST PRESSURIZED THERMAL SH0CK EVENTS" During the 348th meeting of the Advisory Comittee on Reactor Safeguards, April 6-8, 1989, we heard and discussed a report from our Subcommittees on Materials and Metallurgy and Structural Engineering regarding the proposed amendment to 10 CFR 50.61.

Our subcommittees discussed this matter with representatives of' the NRC staff and its consultants and the Electric Power.

Research Institute during a joint meeting held on March 23, 1989.

We also.

had the benefit of the. document referenced.

u As a result of this discussion, we concur in the NRC staff's proposal to issue the proposed amendment for public coment.

After the public coment period, we expect to review the proposed final version of this amendment.

Sincerely,

~

i Forrest J. Remick Chairman l

Reference:

Memorandum dated February 21, 1969, from Robert J. Bosnak, RES, to Frank P.

Gillespie, NRR, et al.,

Subject:

Revised CRGR Package for Proposed Amendment to the Pressurized Thermal Shock Rule, cc:

S. J. Chilk, SECY J. L. Blaha, ED0 E. S. Beckjord, RES R. W. Houston, RES R. 'J. Bosnak, RES P. N. Randall, RES C. B. Bartlett, RES F. P. Gillespie, NRR C. Z.'Serpan, RES D. Persinko, NRR gjel s

- 99042 0244 890411 l[8

{

PDR ACRS PNV

_ __ ________ J - 1 3 4 7