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-Wi Gbl mft ,id,i;kt,) [jj h)l TOLEDO EDISON Docket No. 50-346 Serial No. 421 March 20, 1978 ,
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The Director of Nuclear Reactor Regulation ,
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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 sl k 6/
.
h THE TCLECO ECISON COMPANY EDISON PLAZA 300 MADISCN AVENUE TCLECO. CHO 43652
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! 4 II l We also believe that these design modifications will allow removal of
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power from DH-il and DH-12 during refueling operations and simultaneous
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operation of both decay heat removal pumps, and that therefore License condition 2.C. (3) (j) can be deleted.
4 Yours very truly, t
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ks e/5-6 1
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