ML20039A864

Final Deficiency Rept Re Terminations to Receptacle on GE Panels in Relay Room.Pin Crimping Failure Due to Loose Wire Connections Rectified by Replacing Pin

ML20039A864
Person / Time
Site:	Fermi
Issue date:	11/25/1981
From:	Wells D DETROIT EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
10CFR-050.55E, 10CFR-50.55E, EF2-55867, NUDOCS 8112210402
Download: ML20039A864 (1)

Text

a Donald Ai Wells Dehoit M*YN T~

Edison EE=~

November 25, 1981 EF2-55867 Mr. James G. Keppler, Director y &' \ , bKb ' /

j g g , - {- - (j; Region III U.S. Nuclear Regulatory Cmmission

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799 boosevelt Road 7._

Glen Ellyn,' Illinois 60137. 6 DECla193W '

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Subject:

Final Report of 10CFR50.55(e) Item on Terminatio Receptasia.. s on G.E. Panels (Relay Room) (#27) v g @\

Dear Mr. Keppler:

This. is Detroit Edison's final report on the terminations to receptacle on G.E. panels (Relay Rocxn) . The problem was initially reported by Detroit Edison's Mr. H.A. Walker, Supervisor-Construction Quality Assurance, to Mr.

P.A. Barrett of NRC-Region III during an NRC on-site inspection.

It had been noted at that tine that a. number of wire connections to the terminations on the receptacles of scme G.E. supplied panels in the Enrico Fermi 2 Control Rocm appeared to be-loose. Subsequent intactigation re--

vealed that this problem also exists in G.E. supplied panels in the Fermi 2 relay rocm.

In'the relay rocxu the investigation showed that pin crimping failure had occurred only in isolated cases, and was not as widespread as was the sit-uation in.the control rocm.

In the relay rocxn, wherever this pin crimp failure has been discovered, the problem has been rectified by replacing the old pin by the new pin.

If you have questions concerning this matter, please contact Mr. H.A. Walker, Supervisor-Construction Quality Assurance.

Very trul yours,

)

'2 DAW / HAW /cp cc: Mr. Victor Stello, Jr., Director Office of Inspection and Enforcement Division of Reactor Inspection Programs U.S. Nuclear Regulatory Cm mission Washington, D.C. 20555 Mr. Bruce Little, Resident Inspector U.S. Nuclear Regulatory Comnission Resident Inspector's Office 6450 North Dixie. Highway ~

Newport, Michigan 48166 ).

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