ML19257C611
| ML19257C611 | |
| Person / Time | |
|---|---|
| Site: | Cooper  |
| Issue date: | 01/14/1980 |
| From: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Pilant J NEBRASKA PUBLIC POWER DISTRICT |
| References | |
| NUDOCS 8001290489 | |
| Download: ML19257C611 (1) | |
Text
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UNITED STATES
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Janu ary 14, 1980 L?OR.
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50-298 STATE Nebraska Public ?cwer Distric:
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J. M. Pilant, Direc:cr Licensing 5 Quali:7 2_ssurance
?cs: Office Sox 499 Colu=cus, Nebraska 68601 Gentle =en:
Ecclosed is II Sulletin No.79-013 which requires ac:icn by you vi:h regard :c your pcwer reacecr facili:7 vi:h an operating license.
Should you have questions regarding :his Sulletin or :he acticus required of you, please contac: this office.
Sincerely,
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'Karl 7 Seyfrid!~
Director
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Inclosures:
1.
II Bulletin No.79-013 vith Inclosures 2.
List of Recently Issued II 3ulletins cc:
L. C. Lessor, Superintendent Cooper Nuclear Station
? cst Office Sox 98 3rewnville, Nebraska 68321 1827 345 8001290 h
UNITED STATES SSINS No.:
6820 NUCLEAR REGULATORY COMMISSION Accessions No.:
OFFICE OF INSPECTION AND ENFORCr.HENT 7910250528 WASHINGTON, D.C.
20555 IE Bulletin No.79-01B Date:
January 14, 1980 Page 1 of 3 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 equipe.ent 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 containment, 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 contain-ment, was not included in the responses.
2.
In many cases, the specific informacion requested by t.% Bulletin for each component of Class IE equipment was not reported.
3.
Different methods and/or formats were used in providing the,.writteg
,y evidence of Class IE electrical used the System Analysis Method approach. This method includes DUPLICATE DOCUMENT Identification of the prote Entire document previously a.
under postulated accident c entered into system under:
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conditions are defined as tt from both LOCA and/or HELB outside the primary contai N o.
of pages:
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