ML19220A593
| ML19220A593 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 06/03/1977 |
| From: | Herbein J Metropolitan Edison Co |
| To: | O'Reilly J NRC Office of Inspection & Enforcement (IE Region II) |
| Shared Package | |
| ML19220A592 | List: |
| References | |
| GQL 775, GQL-0775, NUDOCS 7904230147 | |
| Download: ML19220A593 (2) | |
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DST OFFICE BOX 542 READING, PENNSYLVANI A 196c3 TELEPHONE 215 - 929-3601 June 3, 1977 GQL GT75 Mr. J. P. O'Reilly, Director U. S. Nuclear Regulate:7 CH ssien Office of Inspection & Enforce =ent Regien I 631 Park Avenue King of Prussia, Pennsylvania 19h06
Dear Sir:
Three Mile Island Nuclear Station Unit 2 (DiI-2)
License No. CPPR-66 Docket No. 50-320 Inspection Report 77-11 The subject inspection report resulting from Mr. L. Narrov's inspection of March 21 - 24, 1977 contains an infraction concarning inspection resistance checks to electrical penetration leads.
This letter constitutes the written response to this infraction.
Met-Ed does not consider this infraction valid.
Antarent Infraction 10CFR5D Appendiz B, Criterien I states, in part, "A program for the inspection of activities affecting quality shall be................ executed
........ to verify confo:=ance with the docu=ented instruction, procedures,
and drawings for accc=plishing the activity............. ".
The licensee *,s FSAR, paragraph 17 1.10.4 states, in part, " Activities affecting quality are verified by inspections............... Their (UELC) activities are conducted in accordance with vritten procedures, instruction, and checklist UE&C procedure ECP-9-2 requires verification for lov voltage penetrations that the " Insulation resistance betveen conductors and be{.reen conductors and metal fra=everk or headerplate shall be greater than 10 ch=a at roc 3 t e=p erature................ "
Contrary to the above, on June 10,11, and 28,1976 electrical penetrations R516 Rh14, and R520 vere accepted by QC personnel although the resistance tests between conductors had not been perfor=ed.
Restense to Aruarent Infraction During the inspection period insufficient infor=atien vas made available to adequately interpret the QC inspection data sheets in question.
Subsequent review of aMMtional data sheets and the vendor instructions shoved the data sheets for penetrations R516, R514, and R520 to be correctly docu=ented.
7904230147 e gamp h
June 3, 1977 cqL 0775 Mr. 'J. P. O' Reilly i
between Insulation resistance checks were =ade, per vander instruct on, d
hole.
The conductors conductor and ground and between conductors per hea er ducter per header in question vere #h/0 power conductors with only one conThe h
bsence of conductors sharing the sa=e header hole.
hole.
h define "cetween To =ake data more interpretable stepc vere taken to furt er conductor" testing required.
testing The appropriate precedure, ECP-9-2 vas revised to require h
to pro-in accordance vith <endor instruction =anual rather t anThis change, rev 1.
vide specific values and instructions.
was made en h/12/77 ting between adjacent ECM-3105 was revised to define secpe of en 3/29/77 2.
The ECM was reissued dings with pins.
Testing required by the owner and engineer ec= pared fie to leads preship=ent storage and installation.
tion.
during shipnent, this purpose; and are verified by documented inspec Very truly yours, J. G. Herbein
(
Vice President JGH:EWH:j=r Dr. Ernst Iolgenau, Director Office of Inspection & Enforca=ent cc:
U. S. Nuclear Regulatory Cc J.ssion Washington, D. c.
20555 I
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