ML18018A940

Letter Concerning a Request for Approval to Invoke Ame Code Case 1644-7 and to Apply the Code to the Bolting Material Used in the Concrete Anchors for Equipment to Be Installed at Unit 2

ML18018A940
Person / Time
Site:	Nine Mile Point
Issue date:	04/12/1978
From:	Rhode G Niagara Mohawk Power Corp
To:	Case E Office of Nuclear Reactor Regulation
References
Download: ML18018A940 (4)

Text

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DIS'1 RIBUTIOI4 FOR INCOMING MATERIAL So-410 REC: CASE E G ORG: RHODE G K DOCDATE: 04/12/78 NRC NIAGARA MOHAWK PWR DATE RCVD: 04/i8/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

I TR 1 EhlCL 0 REQUEST I NG APPROVAL TO INVOKE ASME CQDE CASE 3. 644' RE BOLTING MATERIAL USED IN THE CONCRETE ANCHORS FOR EQUIPMENT TO BE INSTALLED AT UNIT 2 AND ADVISING SAFETY Sj:GNIFICANCE HAS BEEN EVALUATED AND FOUND THAT THE LEVEL OF SAFETY FOR UNIT 2 IS NOT DEGRADED PLANT NAI"!E: NINE- MILE POINT UNIT 2 REVIEWER INITIAL. X JM DISTRIBUTDR DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS INITIAL: ~

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NIAGARA MOHAWK POWER CORPORATION NIAGARA "~ MOHAWK 300 ERIE BOU1EVARD. WEST SYRACUSE, N. Y. 13202 April 12, 1978 Mr. Edson G. Case, .Acting Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 I CC Re: Nine Mile Point Unit 2 ~gE3 Docket No. 50-410-. g~

Nit'iRI

Dear Mr. Case:

Pursuant to Section 50.55a(a)(2)(ii), Niagara Mohawk Power Corporation requests approval to invoke ASME Code Case 1644-7.

It, is intended to apply Code Case 1644-7 to the bolting material used in the concrete anchors for equipment to be installed at Nine Mile Point Unit 2. Niagara Mohawk will apply the additional limitations recommended by the Nuclear Regulatory Commission Staff for Code Case 1644-6 in Revision ll to Regulatory Guide 1.85.

We have evaluated the safety significance of applying Code Case 1644-7 and found that the level of safety for Unit 2 is not degraded.

Very truly yours, NIAGARA MOHAWK POWER CORPORATION al K. Rho e, Vice President System Projec Management o

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