ML19269G076
| ML19269G076 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/14/1980 |
| From: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Arnold R METROPOLITAN EDISON CO. |
| References | |
| 80-002085001009, 80-2085001009, NUDOCS 8001290381 | |
| Download: ML19269G076 (1) | |
Text
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UNITED STATES YE NUCLEAR REGULATORY COMMISSION a
5'A E
REGION I o
J 631 PARK AVENUE h,**V *',8 KING OF PRUSSIA, PENNSYLVANtA 19406 JAN 14155g Docket No. 50-320 Metropolitan Edison Company ATTN: Mr. R. C. Arnold, Sr.
Senior Vice President 100 Interpace Parkway Parsippany, New Jersey 07054 Gentlemen:
The enclosed IE Bulletin No.79-01B, is forwarded to you for infonnation.
No written response is required at this time.
If you desire additional information regarding this matter, please contact this office.
Sincerely, n
Boyce H. Grier
_ Director
Enclosures:
1.
IE Bulletin 79-01B with Attachments 2.
List of Recently Issued IE Bulletins CONTACT:
S. D. Ebneter (215-337-5296) cc w/encls:
R. F. Wilson, Director, TMI-2 J. J. Barton, Manager Site Operations B. Elam, Manager Plant Engineering (TMI-2)
L. W. Harding, Supervisor of Licensing E. G. Wallace, Licensing Manager I. R. Finfrock, Jr.
R. W. Conrad J. B. Lieberman, Esquire Ms. Mary V. Southard, Chairperson, Citizens for a Safe Environment G. F. Trowbridge, Esquire 2370 279 8 D012 0 0
ENCLOSURE 1 UNITED STATES SSINS No.: 6820 NUCLEAR REGULATORY COMMISSION Accessions No.:
0FFICE OF INSPECTION AND ENFORCEMENT 7910250528 WASHINGTON, D.C.
20555 IE Bulletin No.79-01B Date: January 14, 1980 Page 1 of 4 ENVIRONMENTAL QUALIFICATION OF CLASS IE EQUIPMENT Description of Circumstances:
IE Bulletin No. 79-01 required the licensee to perform a detailed review of the environmental qualification of Class IE electrical equipment to ensure that the equipment will function under (i.e. during and following) postulated accident conditions.
The NRC staff has completed the initial review of licensees' responses to Bulletin No. 79-01.
Based on this review, additional information is needed to facilitate completion of the NRC evaluation of the adequacy of environmental qualification of Class IE electrical equipment in the operating facilities.
In addition to requesting more detailed information, the scope of this Bulletin is expanded to resolve safety concerns relating to design basis environments and current qualification criteria not addressed in the facilities' FSARS.
These include high energy line breaks (HELB) inside and outside primary contain-ment, aging, and submergence., " GUIDELINES FOR EVALUATING ENVIRONMENTAL QUALIFICATION OF CLASS IE ELECTRICAL EQUIPMENT IN OPERATING REACTORS", provides the guidelines and criteria the staff will use in evaluating the adequacy of the licensee's Class IE equipment evaluation in response to this Bulletin.
In general, the reporting problems encountered in the original responses and the additional information needed can be grouped into the following areas:
1.
All Class IE electrical equipment required to function under the postulated accident conditions, both inside and outside primary containment, was not included in the responses.
2.
In many cases, the specific information requested by the Bulletin for each component of Class IE equipment was not reported.
2370 2%
3.
Different methods and/or formats were used in providing the written evidence of Class IE electrical eouipment qualifications.
Some licensees used the Svstem Analysis Method approach.
This method includes a.
Identification of the prote DUPLICATE DOCUMENT under postulated accident c conditions are defined as t Entire document previously from both LOCA and/or HELB i entered into system under:
outside the primary contain N o.
of pages: