ML20073T078

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Discusses Responses to NRC 820625 & 0730 Questions Re Usage of Itt Grinnell Pipe Clamps.Response to 820914 Questions Delayed Pending Minor Clamp Mods & Retesting Program.Meeting Suggested to Insure Closure of Issue
ML20073T078
Person / Time
Site: Satsop
Issue date: 05/05/1983
From: Bouchey G
WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To: Knighton G
Office of Nuclear Reactor Regulation
References
GO3-83-384, NUDOCS 8305100304
Download: ML20073T078 (2)


Text

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Washington Public Power Supply System Box 1223 Elma, Washington 98541 (206)482-4428 Docket 50-508 May 5, 1983 G03-83-384 Director of Nuclear Reactor Regulation Attn: Mr. G. W. Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D. C.

20555

Subject:

NUCLEAR PROJECT 3 RESPONSES TO NRC QUESTIONS ON PIPE CLAMPS

References:

a) Letter F. J. Miraglia to R. L. Ferguson, dated 06/25/82.

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b) Letter #G03-82-760, G. D. Bouchey to F. J. Miraglia, dated 07/30/82.

c) Letter #G03-82-924 G. D. Bouchey to G. W. Knighton dated 09/14/82.

d) Letter G03-82-1135 G. D. Bouchey to G. W. Knighton, dated 11/11/82.

e) Letter E03-83-155 G. D. Bouchey to G. W. Knighton, dated 02/25/83.

f) Letter G. W. Knighton to R. L. Ferguson dated 04/04/83.

l Reference a) transmitted a set of thirteen questions regarding the useage of ITT Grinnell pipe clamps to WNP-3.

Responses to those questions were in-cluded in reference b).

Reference c) transmitted at set of seven additional questions resulting from the NRC staff review of references b) through e) regarding this subject.

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Mr. G. W. Knighton Page 2 May 5, 1983-G03-83-384 RESPONSES TO NRC QUESTIONS ON PIPE CLAMPS 1..

This is to advise you that our response to reference c) must be delayed as follows:

1)

We expect to provide satisfactory responses to most or all questions, with the exception of 16(a), on or before June 1, 1983.

2)

As you may be aware, the test program being conducted in Providence in-dicated clamp induced pipe stresses which do not provide a satisfactory margin.

Therefore, minor clamp modifications and a retesting program must be undertaken.

It is expected that these will be completed, and a response for Question 16(a) will be available by June 15, 1983.

This is in accordance with reference e) which connitted to submittal of the test results in June 1983.

In order to insure closure of this issue as early as possible, it is sug-gested that a meeting between our representatives and the NRC staff re-viewers be scheduled when the data resulting from the above test is avail-able. Should you have any questions or desire further clarification, the Supply System point of contact for this matter is Mr. K. W. Cook, Licen' sing ProjectManager(206/482-4428, ext.5436).

Sincerely, L/

hlrt G. D. Bouchey, Manager Nuclear Safety and Licensing AJM/ss cc:

J. A. Adams - NESCO Ebasco - Elma D. Smithpeter - BPA WNP-3 Files - Richland D. J. Chin - Ebasco i

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