ML19345D086
| ML19345D086 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 11/14/1980 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Crouse R TOLEDO EDISON CO. |
| References | |
| NUDOCS 8012090047 | |
| Download: ML19345D086 (3) | |
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NOVEMBER 1419N TERA Rainas DISTRIBUTIOM-Docket'Filej; NSIC TNovak ORB #4 Rdg RReid NRC FD.-
NRR Rdg DGarner L PDR dei ;en.1ut RIngram Docket flo. 50-346 ilPurple OELD 2
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!'r. Richard P. Cmuse H0rnstein d5.-
Vice President Nuclear EBlackwood BA5 s
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Cear Mr. Crouse:
!!e have reviewed your letter of October 9.1980, concerning adequacy of station electric distribution system voltages at the Davis-Besse Unit No. I plant. !!e have identified additional infomation which we will need in order to complete our review. This infomation is contained in the enclosure. You are requested to provide this additional infomation within 45 days of receipt of this letter.
Sincerely, cr.gine, agne:: by Robett W. R8Id Robert ',l. Reid, Chief Operating Reactors Branch #4 Division of Licensing
Enclosure:
Request for Additional Infomation cc w/ enclosure:
See next page l,
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November 14, 19C0 Docket No. 50-346 Mr. Richard P. Crouse Vice President, Nuclear Toledo Edison Company Edison Plaza 300 Madison Avenue Toledo, Ohio t3652
==Dear
. Crouse:==
We have reviewed your letter of October 9,1980, concerning adequacy of station electric distribution system voltages at-the Davis-Besse Unit No. I plant. We have identified additional infomation which we will need in order to complete our review. This infomation is contained in the enclosure. You are requested to provide this additional infomation within 45 days of receipt of this letter.
Sincerely, g e w/ r/9e W)
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Robert W. Reid, Chief Operating Reactors Branch #4 Division of Licensing
Enclosure:
Request for Additional In formation cc w/ enclosure:
See next page
ENCLOSURE REQUEST FOR ADDITIONAL INFOR$ TION DAVIS -BESSE NUCLEAR POWER STATION ADEQUACY OF STATION ELECTRIC DISTRIBUTION Sr3 TEM VOLTAGES i
Rb?ERENCES:1. NRC. letter (William Gamill) to All Power Reactor Licensees, dated August 8l 1979.
- 2. Toledo Edison Company letter (Lowell E. Roe) to NRC (William Gamill), dated October g,1979.
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The intent of Guideline 3 [Ref.1] is that the analysis should include the effects of starting large non-Class lE loads under worst case conditions, including all Class 1E equipment running, and determine if all Class lE equipment will operate within their required operating voltage range and that separation from offsite power sources will not occur due to operation of the undervoltage relays.
In your analysis [Ref. 2], does the full auxiliary electrical load used in the analysis of starting the reactor coolant pump and condensate pump include fully loaded Class IE buses? If not, yo'u are requested to prcvide this analysis.
2 The single line diagram included in Reference 2 does not indicate any ncn-Class 1E 4160 volt buses.
However, Reference 2 states that the analyses were performed starting the largest a.0 kV motor
'(condensate pump). What is the source of power for the 4.0 kV condensate pump motor?
3 The Guidelines [Ref.13 request that the analyses include the voltages at the terminals of each safety load.
You state that the analyses are a function of bus voltage not motor base voltage.
Provide equipment terminal voltages; Me A Ln o i
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Toledo Edison Company cc w/ enclosure (s):
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Mr. Donald H. Hauser, Esq.
U.S. Nuclear Regulatory Commission The Cleveland Electric Resident Inspector's Office Illuminating Company 5503 N. State Route 2 P. O. Box 5000 Oak Harbor, Ohio 43449 Cleveland, Ohio 44101 Director, Criteria and Standards Gerald Charnoff. Esq.
9ivision Shaw, Pittman, Potts Office of Radiation Programs (ANR-460) and Trowbridge U. S. Environmental Protection Agency 1800 M Street, N.W.
Washington, D. C.
20460 Washington, D. C.
20036 Leslie Henry, Esq.
Fuller, Seney, Henry and Hodge U. S. Environmental Protection Agency 300 Madison Avenue Federal Activities Branch Toledo, Ohio 43604 Region V Office ATTN: EIS C00RDINATOR Mr. Robert B. Borsum 230 South Dearborn Street Babcock & Wilcox Chicago, Illinois 60604 Nuclear Power Generation Division Suite 420, 7735 Old Georgetown Road Bethesda, Maryland 20014 Ida Rupp Public Library Ohio Department of Health 310 Madison Street ATTN: Director of Health Port Clinton, Ohio 43452 450 East Town Street Columbus, Ohio 43216 President, Board of County Commissioners of Ottawa County Port Clinton, Ohio 43452 Attorney General Department of Attorney General 30 East Broad Street Columbus, Ohio _43215 Harold Kahn, Staff Scientist Power Siting Commission 361 East Broad Street Columbus, Ohio 43216 Mr. Rick Jagger Industrial Commission State of Ohio 2323 West 5th Avenue Columbus, Ohio 43216 Mr. Ted Myers Manager, Nuclear Licensing Toledo Edison Company Edison Plaza 300 Madison Avenue
' Toledo, Ohio 43652 s
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