ML20039C142

Interim Deficiency Rept Re Electrical Cable Tray Support Bolts,Initially Reported 810727.Strut Support Sys Could Be Subjected to Slippage at Certain Bolted Strut Fittings.Next Rept by 820801.Also Reported Per Part 21

ML20039C142
Person / Time
Site:	Seabrook
Issue date:	12/15/1981
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
REF-PT21-81 10CFR-050.55E, 10CFR-50.55E, SBN-200, NUDOCS 8112280481
Download: ML20039C142 (1)

Text

PUBUC SERVICE SEABROOK STATION Engineering Office:

Company of New Hamph 1671 Worcester Road Framingham, Mossochusetts 01701 (617) - 872 - 8100 December 15, 1981 SBN-200 gy T.F. Q2.2.2-

\ .

s United States Nuclear Regulatory Commis'sion '

Region I 631 Park Avenue King of Prussia, PA 19406 Attention: Of fice of Inspection and Enforcement

References:

(a) Docket No. 50-443 and 50-444 (b) Telecon of 7/27/81 between Mr. W. Lozarous (NRC) and H. E. Wingate (YAEC)

(c) PSNH Letter, SBN-179, dated 8/25/81 (d) UE&C Letter, G. E. Jarston to Director, Office of Inspection and Enforcement, dated 11/13/81

Subject:

Potentially Reportable 10CFR50.55(e) Deficiency Interim Report on Electrical Cable Tray Support Bolts

Dear Sir:

On Monday, July 27, 1981, we reported a potentially significant deficiency associated with an inconsistency in design information between test data, catalog data, and design allowables for cable tray support systems

[Ref erence (b)]. Specifically, the strut support system used for certain bolted strut fittings could be subjected to slippage at certain bolted strut fittings at loads less than the published allowable loads.

Reference (c) was our interim report on this item.

Our architect engineer, United Engineers & Constructors, Inc. (UE&C),

submitted a 10 CFR 21 report on this potential deficiency related to Public Service Company of New Hampshire - Seabrook Station and Washington Public Power Supply System - WNP 1 and 4 on August 7, 1981.

In Reference (d), UE&C presented the status of ef forts taken to date to resolve this concern and committed to providing a report to your office by June 1, 1982.

This letter is to inform you that we plan to submit a f a, l repolttson this subject by August 1, 1982, following our review of t U EYeport.

Very truly yours g kQ c

C i ISffy '

q J. DeVincentis '

FDR Project Manager g IO ' "

y DAM: dad gh ) _ gh

~~Q r t D