ML20076J956
| ML20076J956 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/22/1983 |
| From: | Woolever E DUQUESNE LIGHT CO. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20076J943 | List: |
| References | |
| 2NRC-3-064, 2NRC-3-64, NUDOCS 8309070395 | |
| Download: ML20076J956 (2) | |
Text
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(412)787 - 5141 M
(412) 923 - 1960
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Telecopy (412) 787-2629 Nuclear Construction Olvision P.obinson Plaza, Building 2. Suite 210 August 22, 1983 Pittsburgh, PA 15205 United States Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406 ATTENTION:
Mr. Rishard W. Starostecki Division of Project and Resident Programs
SUBJECT:
Beaver Valley Power Station - Unit No. 2 Docket No. 50-412 USNRC IE Inspection Report No. 50-412/83-07 DLC Response Letter 2NRC-3-048 dated July 20, 1983 Gentlemen:
This letter provides additional information relative to our previcus response to the subject Inspection Report.
As per the commitments made in Reference 4, this letter provides progress of the influences of heavy wall fittings on the emergency diesel generator exhaust system and the generic influences of heavy wall fittings on selected MRC benchmark piping problems (Reference 2).
A report of the progress on the generic influences is furnished in Attachment I to this letter. Beaver Valley Unit 2 is now assessing the effects of heavy wall fittings on the emergency diesel generator exhaust system for comparison with the standard approach of using nominal wall fittings for pipe stress modeling. The final disposition and assessment for both the generic study and the specific diesel generator exhaust system will be issued by October 28, 1983.
DUQUESNE LIGHT COMPANY s
By
).
E.VJ. Noolever Vice President JS/wjs
Attachment:
(B2-12241-65) Structural Review of Piping Analysis Including Effect of Heavy Elbows, August 1983 8309070395 830831 PDR ADOCK 05000412 G
Unitcd Stctcs Nuclocr R:gulatory Commission Mr. Rich:rd'W. Stcrdctscki
- Page 2 cc:
Mr. G..Walton, NRC Resident Inspector (w/ attachment)
~Ms. L. Lazo, Project Manager (w/ attachment)
NRC Document Control Desk (w/ attachment)
REFERENCES:
_1.
NRC letter Docket No. 50-412, dated June. 10,-1983 2.
Piping. Benchmark Problem Dynamic Analysis, NUREG-CR/1677 and BNL-NUREG-51267, Vol. 1 3.
2NRC-3-041, dated ~ July 12, 1983 4.
- 2NRC-3-048, dated July 20, 1983 5,
2DLS-18336, dated August 17, 1983 6.
2DLS-18337, dated August 17, 1983 k
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