ML20080K290

Interim Deficiency Rept Re Electrical Cable Tray Support Bolts Which Could Be Subj to Slippage.Initially Reported on 810727.Cable Tray & Conduit Supports Modified.Final Rept Will Be Submitted Upon Completion

ML20080K290
Person / Time
Site:	Seabrook
Issue date:	02/01/1984
From:	Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO.
To:	Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
SBN-619, NUDOCS 8402150363
Download: ML20080K290 (3)

Text

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IPUBLIC Companyof Narw SERVICE Hampshes 1671 Worcester Road Framingham, Mossochusetts 01701 (6171 - 872 - 8100 February 1, 1984 SBN 619 T.F. Q2.2.2 United States Nuclear Regulatoiy Commission Region I 631 Park Avenue King of Prussia, PA 19406 Attention: Mr. Richard W. Starostecki, Director Division of Project and Resident Programs

References:

(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) PSNH letter, dated June 17, 1982, " Potential Reportable 10CFR50.55(e) Deficiency Interim Report on Electrical Cable Tray Support Bolts", J. DeVincentis to Of fice of Inspection and Enforcement (Region I)

(c) UE6C letter, dated December 6,1982, G. E. Sarston to Director, Office of Inspection and Enforcement (d) UE&C Letter, dated December 6, 1983, H. G. Kreider to Director, Office of Inspection and Enforcement (e) PSNH Letter, dated February 18, 1983, " Interim 10CFR50.55(e) Report: Elec trical Cable Tray Support Bolts", J. DeVincentis to R. W. Starostecki, Division of Resident and Project Inspeution Subjec t : Interim 10CFR50.55(e) Report; Electrical Cable Tray Support Bolts

Dear Sir:

On Monday, July 27, 1981, we reported a potential 10CFR50.55(e) deficiency regarding an inconsistency in design information between test data, catalog data, and design allowables for Cable Tray Support Systems.

Specifically, the Strut Support Systems used for certain bolted strut fittings, could be subjected to slippage at loads less than the published allowable loads.

Testing of the various strut nut connections used for cable tray and conduit supports has been completed. The reduced allowable loads are presently being incorporated into existing design details for issuance to site contractors to perf orm appropriate modifications as necessary.

It has been determined that this item is reportable under 10CFR50.55(e).

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United States Nuclear Regulatory Commission February 1,1984 Attention: Mr. Richard W. Starostecki, Director Page 2 A final report will be submitted upon completion of the modifications and will include sufficient information to permit analysis and evaluation of the deficiency and of the corrective action.

Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY N[ W John DeVincentis Project Manager cc: Atomic Safety and Licensing Board Service List Direct.or, Office of Inspection and Enforcement U.S. Nuclear Pegulatory Commission Washington, DC 20555

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William S. Jordan, III, Esquire Brentwood Board of Selectmen Harmon & Weiss RED Dalton Road 1725 I Street, N.W. Suite 506 Brentwood, New Fampshire 03833 Washington, DC 20006 Roy P. Lessy, Jr., Esquire Office of the Executive Legal Director Edward F. Meany U.S. Nuclear Regulatory Commission Designated Representative of Washington, DC 20555 the Town of Rye 155 Washington Road Robert A. Backus, Esquire Rye, NH 03870 116 Lowell Street P.O. Box 516 Calvin A. Canney Mancehster, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street .

. Assistant Attorney General Portsmouth, NH 03801 Department of the Attorney General Augusta, ME 04333 Dana Bisbee, Esquire Assistant Attorney General Mr. John B. Tanzer Office of the Attorney General Designated Representative of 208 State House Ar.nex the Town of Hampton Concord, NH 03842 5 Morningside Drive Hampton, NH 03842 Anne Verge, Chairperson Board of Selectmen Roberta C. Pevear Tcwn Hall Designated Representative of South Hampton, NH 03S42 the Town of Hampton Falls Drinkwater Road Patrick J. McKeon Hampton Falls, NH 03844 Selectmen's Office 10 Central Road Mrs. Sandra Gavutis Rye, NH 03670 Designated Representative of the Town of Kensington Carole F. Kagan, Esq.

RFD 1 Atomic Safety and Licensing Board Panel East Kingston, NH 03827 U.S. Nuclear Regulatory Commission Wasninoton, D.C.

' 20555 Jo Ann Shotwell, Esquire Assistant Attorney General Mr. Angie Machiros Environmental Protection Bureau Chairman of the Board of Selectmen Department of the Attorney General Town of Newbury One Ashburton Place, 19th Floor Newbury, MA 01950 Boston, MA 02108 Town Manager's Office Senator Gordon J. Humphrey Town Hall - Friend Street U.S. Senate Amesbury, Ma. 01913 Washington, DC 20510 (Attn: Tom Burack) Senator Gordon J. Humphrey 1 Pillsbury Street Diana P. Randall Concord, NH 03301 70 Collins Street (Attn: Herb Boynton)

SEabrook, NH 03874 P.ichard E. Sullivan, Mayor

. Donald E. Chick City Hall Town Manager Newburyport, MA 01950 Town of Exeter 10 Front Street Exeter, NH 03833

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