ML19338C594

From kanterella
Jump to navigation Jump to search
Submits Response to IE Bulletin 79-03A.Reviewed SA-312 & A-312 Type 304 Fusion Welded Stainless Steel Pipes & Performed Pipe Wall Thickness Calculations.Results of Review Indicate Sufficient Min Pipe Wall Thickness
ML19338C594
Person / Time
Site: Seabrook  NextEra Energy icon.png
Issue date: 07/23/1980
From: Devincentis J
PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
IEB-79-03A, SBN-127, NUDOCS 8008180247
Download: ML19338C594 (1)


Text

PUBLIC SERVICE h

I C-.W.yof New Hampshw e SEABROOK STATION Engineering Office:

20 Turnpike Road Westborough, MA 01581 July 23, 1980 SBN-127 ~

Ref SBU-37748 SBU-38001 T.F. B 4.2.5 U.S. Nuclear Regulatory Commission Pagion I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention: Office of Inspection and Enforcement

Reference:

1.

Docket No. 50-443 and 50-444 2.

NRC letter dated April 7, 1980 3.

IE Bulletin No.79-03A

Subject:

Longitudinal Weld Defects in ASME SA-312 Type 304 Stainless Steel

Dear Siz:

The following information is provided in accordance with your request in IE Bulletin No.79-03A.

We have reviewed all of the SA-312 and A-312 Type 304 fusion welded stainless steel pipe specified for use in safety related system for the Seabrook project, and have performed pipe wall thickness calculations using the 85% of the maximum allow-able stress criteria defined in the subject bulletin.

Results of our review indicate that we have sufficient minimum pipe wall thickness.

A telecon discussion with your Mr. L.E. Tripp was held to clarify inter-pretation of the NRC Bulletin No.79-03A, particularly as it concerns Items 1 and 3 of the bulletin.

Mr. Tripp stated that if we satisfy the requirements of Item 1, we will have satisfactorily responded to the NRC.

Please contact us if you require further information.

Very truly yours, 1

s Mw

,,n John DeVincentis JDV: tan Project Manager cc: NRC Office of Inspection and Enforcement Division of Reactor Construction Inspection Washington, D.C.

20555 8 0 0 818052h O