ML19309H396
| ML19309H396 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 04/15/1980 |
| From: | Daltroff S PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-79-01, IEB-79-1, NUDOCS 8005130141 | |
| Download: ML19309H396 (3) | |
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$005130Wt PHILADELPHIA ELECTRIC COMPANY 2301 M ARKET STREET P.O. BOX 8699 PHILADELPHI A. PA.19101
$HIELDS L. DALTROFF ELactatC Pa D CTION April 15*,
1980 Docket Nos. 50-277 50-278 IE Bulletin 79-OlB Mr. Boyce H.
Grier, Director Office of Inspection & Enforcement Region I United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA 19406
Dear Mr. Grier:
This letter is our second response to IE Bulletin 79-01B which you forwarded to us on January 14, 1980, concerning environmental qualification of Class IE equipment.
This letter addresses the 90-day response to Items 4 and 5.
The attached Environmental Qualification Report for Peach Bottom Units 2 and 3 contains the system master lists and equipment qualification forms for both units.
The report revises and supersedes the 45 day submittal dated March 3, 1980.
The " Action to Be Taken by Licensees" and our responses are treated sequentially.
Action to Be Taken by Licensee 4.
Evaluate the qualification of your Class IE electrical equipment against the guidelines provided in Attachment 4.,
" Interim Staff Position on Environmental
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Mr. Boyce H.
Grier Page 2 Qualification of Safety-Related Electrical Equipment",
provideo supplemental information to be used with these guidelines.
For the equipment identified as having
" Outstanding Items" by Attachment 3, provide a detailed
" Equipment Qualification Plan".
Include in this plan specific actions which will be taken to determine equipment qualification and the schedule for completing the actions.
Response
The qualification of Class IE equipment located within the primary containment has been reviewed and a detailed qualification plan is provided in the attached report for equipment identified as having " Outstanding Items".
The qualification review of Class IE equipment inside secondary containment is dependent on the high energy line break (HELB) analysis and various requested vendor qualification information.
The HELB profiles are being reviewed and will be submitted by May 12, 1980.
Most of the PBAPS Class IE equipment inside secondary containment was procured before qualification documentation requirements were imposed; however, it is similar to equipment which subsequently has been qualified.
Our first effort to satisfy the documentation requirements has been to request vendors to supply the applicable qualification documents.
The conclusion of this effort is reflected in this revision (Revision 1) of the attached
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report.
In those cases where vendor documentation is lacking, we are in the process of-requesting the vendor to establish qualification by analysis to similar qualified equipment.
Additional qualification information will be provided for equipment identified as having " Outstanding Items" in a p rogres s report which will be submitted by June 17, 1980.
5.
Identify the maximum expected flood 2evel inside the primary containment resulting from postulated accidents.
Specify this flood level by elevation such as the 620 foot elevation.
Provide this information in the format of Attachment 3.
- r Mr. Boyce H.
Grier Page 3
Response
The maximum expected flood level inside primary containment resulting from postulated accidents would not exceed the inlet of the drywell-to-torus downcomer which is at the 123 foot elevation.
All primary containment Class IE equipment is located j
above this elevation.
Should you have any cuestions or require additional information, please do n at hesitate to contact us.
Very truly yours,
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Attachment cc:
Office of Inspection & Enforcement United States Nuclear Regulatory Commission Washington, DC 20555