ML18139B724
| ML18139B724 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 02/05/1982 |
| From: | Leasburg R VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 054, 54, NUDOCS 8202120185 | |
| Download: ML18139B724 (1) | |
Text
VIRGINIA ELECTRIC AND POWER COMJ>ANY RICHMOND~ VIRGINIA 23261 R.H. LEASBURG VICE PRESIDENT NUCLEAB 0PlU<ATIONS February 5, 1982 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. Steven A. Varga, Chief Operating ~actors Branch No. 1 Division of Licensing U. S. Nuclear Regulatory Commission Washingto~, D. C. 20555 Gentlemen:
Serial No. 054 NO/RMT:acm Docket Nos. 50-280 50-281 License Nos. DPR-32 DPR-37 This letter report is furnished in accordance with the provisions of Surry Power Station Technical Specification 4.14.C.l.
During the period of 1324 to 1500 January 22,.1982, the average rate of change of the condenser cooling water outlet temperature was approximately l2°F/hr.
which exceeds the 3°F/hr. rate of change permitted by Technical Specification 4.14.A.3.
The event was accompanied by a Station Delta T of 24°F which exceeded the 23°F maximum allowed by Technical Specification 4.14.B.2.
At the time of this event, Unit one was at 100% power and Unit two was at 90% power.
The failure of a vacuum priming pump at the river intake substantially reduced the circulating water flow into the intake canal.
Throttling of the flow through the condenser water boxes to preserve canal water level resulted in the temperature limits being exceeded.
The vacuum priming system has been repaired and returned to service.
A search was conducted to determine if the canal temperature excursion had adversely affected the river environment.
No detrimental evidence was found.
cc:
Mr. James P. O'Reilly Regional Administrator, Region II 8202120185 820205 PDR ADOCK 05000280
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