ML19312D826
| ML19312D826 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/31/1980 |
| From: | Woolever E DUQUESNE LIGHT CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-79-01B, IEB-79-1B, NUDOCS 8005050180 | |
| Download: ML19312D826 (409) | |
Text
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March 31, 1980 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Attn: Boyce H. Grier, Regional Director Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 IE Bulletin 79-OlB
Dear Mr. Grier:
In accordance with the requirements of the referenced bulletin and our letter of February 29, 1980, enclosed are the reports required for Items 1, 2 and 3.
In order to assure comprehensive ccmpi?.ttion of the Master List, we have given the broadest possible interpretation to the definition of the classes of equipment to be included therein, including all equipment that is located in potential High Energy Line Break areas (i.e., auxiliary building, cable vault and service building) that is presently specified to bring the plant to a safe shutdown condition.
This has resulted in the compilation of about 370 items on the Master List.
We plan to closely examine each item on the Master List and may elect to delete certain items on the Master List if we determine that the item is not needed to control the accident or to achieve safe shutdown or is not used in an Emergency Operating Procedure.
Furtner, certain of the items on the Master List may not meet the required qualifications required of such equipment.
To elaborate, when the HELB analysis was performed for Beaver Valley, the areas mentioned were analyzed as common mode without ragard for compartmentalization or barriers.
This resulted in all equipment in these areas theoretically being in the HELB environment even though, in some cases, the equipment may be on a different elevation than where the break is postulated to occur.
In these instances, we plan to expeditiously pursue one or more of the following alternatives:
reanalyze the environmental condition to which the item is exposed a.
to more closely approximate the expected environmental condition.
l 1
mm Be:vsr Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 IE Bulletin 79-OlB Page 2 b.
reexamine the requirement for the item to be classified as lE.
qualification tests of the item to meet the required criteria.
c.
d.
movement of the item out of the adverse environment.
replacement of the item with another type meeting all qualifications.
e.
In view of the substantial effort involved in accomplishing all of the requirements of Bulletin 79-01B, it is not possible to specify a schedule for completion of the second phase of the work required at this time.
We will, however, develop an estimated schedule for completion and provide that schedule to you prior to April 15, 1980.
Very truly yot s, i
E.
. Woolever Vice President, Engineering and Construction Attachments cc:
U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Division of Reactor Operations Inspection Washington, D.C.
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Attest:
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Joan S. Senchyshyjn' Asst. Secretary COMMONWEALTE OF PENNSYLVANIA)
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COUNTY OF ALLEGHENY On this J/
day of M
- 1980, before me HCNRY G C,TOFCKFR a Notary Ptiblic in and for said commonwealth and County, personally appeared E. J. Woolever, who being duly sworn, deposed, and said that (1) he is Vice President of Duquesne Light, (2) he is duly authorized to execute and file the foregoing Submittal on behalf of said company, and (3) the statements get forth in the Submittal are true and correct to the best of his knowledge, information and belief.
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HENRY G. ST0ECKE3, Notary Publ<
Ps::sburgh. Msgbeny County, Pa.
My Ccmmisten Exo:res i
fettuary 20.1932 l
.