ML19338C971
| ML19338C971 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 12/30/1977 |
| From: | Turbak M COMMONWEALTH EDISON CO. |
| To: | Oconnor P Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8009120714 | |
| Download: ML19338C971 (3) | |
Text
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Mr. Paul W. O'Connor, Project Manager g.
'A Operating Reactors - Branch 2 Division of Operating Reactors
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.A U.S. Nuclear Regulatory Commission
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Subject:
Dresden Station, Unit 1 Testing Program for the Temporary Diesel Generator NRC Docket No. 50-10
Dear Mr. O'Connor:
The enclosed information and planned testing program are provided in response to your verbal request.
As previously des-cribed, this new temporary standby diesel generator was procured as a commercial quality unit to be obtained quickly and utilized during the requested ECCS, IEEE-279 exemption extension period during which the permanent safety related quality diesel generators will be installed.
The manufacturer previously stated, "the engine and other components have previously been accepted for nuclear standby service applic.ation".
The manufacturer has recently further explained his statement as follows:
"PSD has used an engine of the same configuration, size
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and manufacture (EMD 20-645E4) as supplied on the following licensed nuclear plants:
Rancho Seco - Sacramento Municipal Utility District James A. Fitzpatrick - Power Authority of the State of New York Davis Besse - Toledo Edison Browns Ferry - Tennessee Valley Authority" In view of the above, the attached testing program has been developed to satisfy the intent of Regulatory Guide 1.108 to demonstrate the operability of the temporary diesel generator system for the Dresden Unit 1 application.
Very truly yours, k
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S. Turbak Nuclear Licensing Administrator Boiling Water Reactors Enclosure 300%20 7/V
,I 12/30/77-
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Testing Program Dresden' Unit 1 Temporary Diesel Generator A.
Construction Tests 1.
Megger & phase checks (all 4 KV) 2.
Logic Verification (Switchgear & Engine) 3.
4 KV switchgear relay acceptance checks & calibration 4.
4 KV switchgear trip check 5.
Ratio a polarity checks (cts & pts) 6.
125 VDC battery & charger inspection B.
Preoperational Tests 1.
Engine trip and alarm sensor calibration 2.
Functional Verification a)
Starting Air System b)
Lube Oil System c)
Fuel Oil System d)
Cooling System e)
Auxiliary Lube Oil Pumps for A&B Primary Feedpumps C.
Acceptance Tests (This section satisfies the intent of the applicable testing requirements (Para. C2) of Regulatory Guide 1.108) 1.
Regulatory Position C.2.3:
Demonstrate full-load carrying capability:
a) 1-hour of full-1 cad paralleled to CECO. System.
b) 23 hours2.662037e-4 days <br />0.00639 hours <br />3.80291e-5 weeks <br />8.7515e-6 months <br /> at i load paralleled to CECO. System (10 of these hours will be logged during the 10-start reliability test described in Acceptance T st 2),
2.
Regulatory Position C.2.9:
Demonstrate the required reliability; a) 10 consecutive valid tests with no failures per the regulatory guide.
3.
Regulatory Position C.2.1, C.2.2, C.2.4, C.2.5:
Demonstrate proper startup by simulating loss oI a,c.
Demonstrate proper design-accident-loading-sequence and design-load requirements.
Demonstrate proper operation during D.G. load shedding.
Demonstrate functional capability at full-load temperature.
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