ML19338F448
| ML19338F448 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 09/18/1980 |
| From: | Moody D YANKEE ATOMIC ELECTRIC CO. |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-80-18, WYR-80-107, NUDOCS 8010200371 | |
| Download: ML19338F448 (1) | |
Text
IN Telephone 617 366-9011 l
wx 710-390-0739 YANKEE ATOMIC ELECTRIC COMPANY B.4.1.1
- m.
NYR 80-107 U
JgL 20 Turnpoke Road Westborough, Massachusetts 01581
.Yauxes September 18, 1980 United States Nuclear Regulatory Commission Office of Inspection and Enforcement Region I 631 Park Avenue King of Prussia, Pennsylvania 19406 Attention:
Mr. Boyce H. Grier, Director
References:
(a) License No. DPR-3 (Docket No. 50-29)
(b) USNRC Letter to YAEC dated July 24, 1980 I & E Bulletin No. 80-18
Dear Sir:
Subject:
Response to I & E Bulletin 80-18; " Charging Pump Minimum Flow" As requested in Reference (b), we have determined that minimum cooling is provided to centrifugal pumps used for high pressure injection. At Yankee Rowe, this applies to the HPSI pumps and not the charging pumps.
The charging pumps are positive displacement pumps and trip on a safety injection actuation signal.
The minimum flow line for the HPSI pumps remains open during high pressure injection and guarantees that minim'un cooling flow will be provided to the pumps.
Since all safety related analyses assumed that the minimum flow lines were open, no addhional analyses or calculations are required.,
We trust this information is satisfactory; however, if you have any questions please contact us.
Very truly yours, YANKEE ATOMIC ELECTRIC COMPANY bA.hs b' L i
D. E. MEo'dy Manager of Operations BLD/sec 80102oo 37 f
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