ML19319B941
| ML19319B941 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 03/20/1978 |
| From: | Roe L TOLEDO EDISON CO. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19319B942 | List: |
| References | |
| 421, NUDOCS 8001290679 | |
| Download: ML19319B941 (3) | |
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"L"sh-mf,id,i;kt,) [jj h)l tr Wi Gbl t TOLEDO EDISON Docket No. 50-346 Serial No. 421 March 20, 1978 The Director of Nuclear Reactor Regulation Attention:
Mr. John F. Sto]:, Chief Light Water Reactors Branch No. 1
--~~"'.,
Division of Project Management United States Nuclear Regulatory Coriission Washington, D.C.
20555
Dear Mr. Stolz:
Under separate cover, we are transmitting three (3) original and forty (40) conformed copies of an Application for Amendment to Operating License No. NPF-3 for the Davis-Besse Nuclear Power Station Unit No.
1.
i The application identifies the changes to the Davis-Besse Nuclear l
Power Station Unit No. 1 Technical Specifications (Appendix A to Oper-l ating License No. NPF-3) reflecting the pressurizer heater interlocks l
and associated instrumentation.
The description of the pressurizer
)
heater interlocks was submitted to the NRC in a letter from me to the attention of Mr. John F. Stol: dated April 7, 1977.
In subsequent conversations between our engineering staff and your review staff, we agreed to provide the capability to add and remove control power to l
the motor operators on valves DH-Il and DH-12 from the Control Room.
Also, an alarm has been provided to alert the Reactor Operator when there is control power to the motor operates on DH-il, and DH-11 is open.
An identical alarm has been provided for DH-12.
We believe that with the addition of the pressurizer heater interlocks and associated instrumentation, we have completed the provisions necessary for a long-term means of protection against reactor coolant system over pressurization thereby meeting the requirements of License condition 2.C.
(3) (d).
ko k
6/
sl h
THE TCLECO ECISON COMPANY EDISON PLAZA 300 MADISCN AVENUE TCLECO. CHO 43652
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We also believe that these design modifications will allow removal of power from DH-il and DH-12 during refueling operations and simultaneous operation of both decay heat removal pumps, and that therefore License condition 2.C.
(3) (j) can be deleted.
Yours very truly, 4
t ks e/5-6 1
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