ML19305C436
| ML19305C436 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 03/21/1980 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Ippolito T Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-CR-0660 NUDOCS 8003280548 | |
| Download: ML19305C436 (2) | |
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TENNESSEE VALLEY AUTHORITY CHATTANCOGA, TENNESSEE 374ot 400 Chestnut Street Tower II i
March 21, 1980 Director of Nuclear Reactor Regulation Attention:
Mr. Thomas A. Ippolito, Chief Branch No. 3 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Mr. Ippolito:
In the Matter of the
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Docket Nos. 50-259 Tennessee Valley Authority
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50-260 50-296 By letter from D. Eisenhut to All Power Reactor Licensees dated June 4, 1979, we were provided a copy of NUREG/CR 0660 entitled " Enhancement of Onsite Emergency Diesel Generator Reliability" and were encouraged to provide comments. In response, we have reviewed the report and are providing the enclosed comments.
Very truly yours, TENNESSEE VALLEY AUTHORITY b
L. M. Mills, Manager Nuclear Regulation and Safety Enclosure cc:
Mr. Fred Clemenson (Enclosure)
Plant Systems Branch Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555 h/S
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/fl An Eaual Opportunity Employer 003280548 t
e ENCLOSURE TVA COMMENTS REGARDING NUREC/CR 0660 "ENHANCDIENT OF ONSITE EMERGENCY DIESEL GENERATOR RELIABILITY" 1.
We do not agree that refrigerated starting air dryers should be installed on the starting air systems for the following reasons.
A.
The ambient air temperature range is greater than that for which the dryers are normally designed.
B.
The dryers must run continuously to. provide dry air when it is needed which in turn causes the dryers to have problems because of freezing.
2.
We recognize that no-and light-load operation is a problem, but because of the application there are conditions when no-or light-load operations is mandatory. We procedurally reduce the no-and light-load operation to a minimum when possible.
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