ML20196C905
| ML20196C905 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 02/09/1988 |
| From: | CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | |
| Shared Package | |
| ML20196C902 | List: |
| References | |
| NUDOCS 8802160277 | |
| Download: ML20196C905 (2) | |
Text
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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) to standby operation, and (2) automatically energizes the emer-gency loads with offsite power.
12.
Verifying that each fuel transfer pump transfers fuel from the fuel storage tank to the day tank of each diesel.
13.
Verifying that the automatic load sequence timers are OPERABLE with the interval between each load block within 10% of its design interval for diesel generators Div 1 and Div 2.
14.
Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:
a.
For diesel generators Div 1 and Div 2:
1)
Control room switch in pull-to-lock (with local / remote switch in remote).
2)
Local / remote switch in local 3)
Barring device engaged 4)
Inop/ Normal switch in inop b.
For diesel generator Div 3:
1)
Emergency run/stop switch in stop 2)
Maintenance / auto / test switch in maintenance f.
At least once per 10 years or after any modifications which could af-feet diesel generator interdependence by starting all three diesel generators simultaneously, during shutdown, and verifying that all three diesel generators accelerate to at least 441 rpm for diesel generators Div 1 and Div 2 and 882 rpm for diesel generator Div 3 in less than or equal to 10 seconds.
g.
At least once per 10 years by:
1.
Draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank using a sodium hypochlorite or equivalent solution, and 2,
Performing a pressure test of those portions of the' diesel fuel oil system designed to Section III, subsection ND of the ASME Code in accordance with ASME Code Section 11 Article IWD-5000, 4.8.1.1.3 Reports - All diesel generator failures, valid or non-valid, shall be reported to the Commission pursuant to Specification 6.9.2 within 30 days.
Reports of diesel generator failures shall include the information recommended in Regulatory Position C,3.b of Regulatory Guide 1.108, Revision 1, Auoust 1977.
If the number of failures in the last 100 valid tests, of any diesel generator is greater than or equal to seven
, the report shall be supplemented to in-clude the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.
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v TABLE 4.8.1.1.2-1 DIESEL GENERATOR TEST SCHEDULE Number of Failures a
Number of Failures in in Last 100 Valid Last 20 Valid Tests
- Tests
- Test Frecuency
_1
_4 Once per 31 days j
>2b
>5 Once per 7 days **
1 o
- Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatcry Guide 1.108, but determined on a per diesel generator basis.
For the purposes of determining the required test frequency, the previous test failure count any be reduced if an appropriate overhaul to like-new condition is completed, provided that the overhaul including appropriate post-maintenance operation and testing, is specifically approved by the manufacturer and if acceptable reliability has been demonstrated.
The number of failures is reduced by the number which was eliminated by the approved overhaul.
The reliability criterion shall be the successful completion of 14 consecutive tests in a single series. Ten of these teste shall be in accordance with the routine Surveillance Requirement 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5, four tests, in accordance with the 184-day testing requirement of Surveillance Requirements 4.8.1.1.2.a.4 and 4.8.1.1.2.a.5.
If this criterion is not satisfied during the first series of tests, any alternate criterion to be used to transvalue the failure count requires NRC approval.
l
""The h
' *3$tfrequencyshallbemaintaineduntilsevenconsecutive b
failure Tree demands have been performed and the number of failures in the last 20 valid demands has been reduced to less than or equal to one.
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