ML19268B754
| ML19268B754 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 01/11/1979 |
| From: | Roe L TOLEDO EDISON CO. |
| To: | Reid R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19268B755 | List: |
| References | |
| 470, NUDOCS 7901310044 | |
| Download: ML19268B754 (8) | |
Text
.,
l 9schetNo.50-346 Tottoo m EDISDN LOWELt E. roe Operating License No. NPP-3 j
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m f ateht**. Deve'oement Scrial No. 470 u u ttner.e
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January ll, 1979 Director of Nuclear Reactor ReLulation Attention:
Mr. Robert W. Reid, Chief Operating Recctors Branch No. 4 Division of Operating Reactors
, United States Nucicar RcEulatory Comntesion Washington, D.C.
20555 i
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Dear Mr. Reid:
This is in reference to the license condition 2.C.(3)(k) to 31 cense No. NPF-3 for operation of Davis-Besse Nuclear Power Station Unit No.1.
The above condition, in part, requircu the Toledo Edison Company to p
mplete tests and obtain test results as required by the NRC to verify at faults on non-class IE circuits would not propagate to the class-lE rcuits in the Reactor Protection System (RPS) and the Engineered Safety Features Actuation System. These tests were to be completed prior to startup following the first regularly scheduled refueling outage or no later than 26 months from the issuance of the license.
}.
4 The intent of this letter is to formally advise the NRC of successful completion of the N1/RPS Noise Tect Program and to forward the following
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fault testing reports (3 copies of each enclosed).
j
-Document No.
Title s
1.
58-0349-01/QR-ij01-NIRPS-1 Is.olation Capability Tests -
Bistable and Fan Failure Detector 2.
58-0381-01/Q't-5301-NIRPS-2 Module Basis EMI Susceptibility
' rests - Contact Monitoring Channel and Analog Pressure Channel 4
9 3.
58-0389-01/QR-5301-NIRPS-3 880 System Electrostatic Fault Tests 4.
58-0398-01/QR-5301-NIRPS-4 880 System Electromagnetic Fcult Tests
- 1 9
58-0429-01/QR-5301-MIRPS-5 880 System EMI Susceptibility Tests EGL E0RY 200KE' F _i CO?Y o A'.
s W Yni rnn rDISON COMPANY E0tSON PLAZA 300 MADISDN AVENUE TOLEDO, OHIO 43652 3'
isoi n o o ve o
t i j e.hscpenliteratureandtheirdisclosurewouldprov above reports are requested to be treated as proprietary in nature
.nce the information and data contained therein is not available in destgas and testing, and would impair Babcock and Vilcox competitive position in this area.
confidential within the Babcock and WilcoThis information has been held as
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disclosed to any other person or persons,x Company and has not been except on a proprietary basis.
The attached affidavit supports this request pursuant to the requirements of 10CFR2. 790.
The results of the above test program may be summarized as follows i
M1/RPS was subjected to electrostatic, electromagnetic and MIL-19900 B The noise tests at levels and by methods previously committed to.
tine during the test program, as a result of the tests, was the NI/RPS At no rendered unable to perform its protective functions within specified l
limits, when required.
In addition, at ne time during the test program were there any spurious channel or system level protective action trips generatan as a result of test stimuli.
i criteria outlined in Chapter 8 of the Davis-Besse Nuclear Power StationSpecifica FSAR were demonstrated to be met.
There were no test induc ed component f ailures.
test, one minot random component failure occurred wherein a bufferDuring the course of 9splitierfailedtorezeroafterpoettriprecalibration.
imponent was replaced.
The failed I
In the naar future, Toledo Edison Company will request the NRC for a relaxation in the scheduling of Noise and Isolation testing of the Engineered Safety Feacures Actuation System referred in the license condition 2.C. (3)(k).
startup following the first refueling outage.It is proposed to complete this testing prio obtained two (2) months af ter the above startup.The test results will be required due to the delay in startup of the unit. This relaxation is outage is tentatively scheduled to be in the spring of 1980.The first refuelf,g i
application for an amendment to the Operating License, requesting this A si.ca e s
r change will be submitted to the NRC in the near future.
j l,
Should yen.have any questions, please advise.
Sincerely.yours,
/
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