ML20063H798
| ML20063H798 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/10/1994 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| Shared Package | |
| ML20063H790 | List: |
| References | |
| NUDOCS 9402220201 | |
| Download: ML20063H798 (2) | |
Text
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for any reason, reactor operation is permissible for t'h'e 6
succeeding seven days'provided that-the redundant diesel generator is:
1.
verified to be operable immediately;.
2.
within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> either:
a.
determine the redundant diesel generator is not inoperable'due' to a common: mode. failure'.or.
4 b.
test redundant diesel generator in,accordance with surveillance requirement ~4.6.1'.a.-
In the event two diesel generators are inoperable, the units shall be placed in hot shutdown in 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. :If:one_ diesel l is not operable'within an. additional-24. hour period the plant-shall be placed in cold" shutdown within:.an additional 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s-thereafter.
l With one diesel generator. inoperable, inl addition Lto the above, i
verify that: All required systems', subsystems,otrains,-
components and devices that_ depend on the remaining 0PERABLE diesel generator as a. source of emergency._ power-are also.
OPERABLE or follow specifications 3.0.1.
d.
If one Unit Auxiliary Transformer is4 inoperable and _a ;4160 volt -
tie from Unit 2: transformer cannot be placed;in service and a L diesel generator becomes inoperable,-the-unit will-be placed in.
hot shutdown within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.. If one 'of the above sources: of '
power is not made operable within_ an' additional' 24-hours the unit shall be placed in cold shutdown.within an additional 24:
hours thereafter.
1 e.
If Unit 1 is separated from the system while carrying its own' auxiliaries, or if only one 230.kv line.isiin service, continued reactor operation is: permissible provided onec i
emergency diesel generator shallibe started and run.
continuously until two transmission lines are~ restored.
l.
f.
The engineered safeguards electrical bus, ~ switchgear,- load l
~
shedding, Land automatic diesel-start ' systems, shall. be operable except as provided in Specification 3.7.2c above and"as required for testing.
~
g.
One station battery may.be removed from~ service for not more-than eight hours.
3-43 Amendment No. 98
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9402220201 940210 T<
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PDR ADOCK 05000289 [9. '
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- P PDR
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Bases i
The Unit Electric Power System is designed to provide a reliable source of power for balance of plant auxiliaries and a continuously available power
]
supply for the engineered safeguards equipment.
The availability of the i
various components of the Unit Electric Power System dictate the permissible mode of station operation.
Verification of operability normally consists of verifying that the surveillance is current, and that other available information does not indicate inoperability.
It is recognized that while testing the redundant diesel in accordance with surveillance requirement 4.6.1.a, the diesel will not respond to an automatic initiation signal.
In this situation, the 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> time clock will not be entered per the provisions of section 3.7.2.f. due to the low probability of an event occurring while the diesel being tested.
l 3-43a i