ML20032A226
| ML20032A226 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 10/13/1981 |
| From: | ALABAMA POWER CO. |
| To: | |
| Shared Package | |
| ML20032A225 | List: |
| References | |
| NUDOCS 8110280538 | |
| Download: ML20032A226 (2) | |
Text
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3)4.3 ELECTRICfil POWER SYSTEM 5 3/4.8.1 A.C. SOURCES 0?ERATING LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be CPERABLE:
Two physically independent circuits between the offsite transmission a.
network to the switchyard and two physically independent circuits frca the switchyard to the onsite Class 1E distribution system, and b.
Two separate and independent die:;e1 generator sets (Set A:
DG l-2A and CG-1C, Set B:
DG-2B and DG-2C) each with:
1.
Separate day' tanks containing a minimum volute of S00 gallons of fuel for the 4075 kw diesel generators and 700 gallons of fuel for the 2850 kw diesel generator.
2.
A separate fuel transfer pump for each diesel.
c.
A fuel storage system consisting of fcur, independent storage tanks each containing a minimum of 25,000 gallons of fuel.*
APPLICABILITY:
MODES 1, 2, 3 and 4.
ACTION:
With an offsite circuit ineperable, demonstrate the OPERASILITY of the a.
rec.aining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1,.1.2.a.4 within one hour and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STAND 5Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the fo11cwing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
b.
With one diesel generator set inoperable, demonstrate the operability of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.4 within one hour and at least once. per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />'s7 hereafter.
Restore both diesel generator sets to OPERABLE status within 727.ours or cccply with the following:
1)
Be in at least HOT STANDBY within the next 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> and in COLD SHUTDOWN within the fo11cwing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
"One inoperable fuel storage tank is equivalent to one inoperable diesel
)
generator set.
- 0ne time only ' exception for repair of Diesel 1-2A the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> action statement for operability of Diesell-2A may be extended to a period of 6 days provided Diesb11-2A is returned to OPERABLE status as soon as maintenance is completed.
The provisons of specification 3.0.4 are not applicable for this one time change.
- 0ne time only exception during repair of Diesel 1-2A the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> interval test is extended to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
FARLEY-UNIT 2 3/4 8-1 AMENDMENT NO.
8110280538 811013 PDR ADOCK 05000364 P
pgg
ELEETRlC4L FOL:ER SYSTEMS-
' ACT102 (Continued) i e.
With both of the above required diesel generator sets inoperable, demons.trate the OPERASILITY of two offsite A..C. circuits.by performing Surveillance Requirement 4.8.11.1.a within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> 1*thereafter; restore at least one of the l
inoperable diesel generatnr-sets to OPEPASLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least HOT STAND 3Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTD0k?i within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore both diesel generator sets to OPERKSLE status within 72* hours from time of initial loss or be in least HOT STAND 5Y within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDL7 within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SURVEILLANCE REOUIREMENTS 4.E.1.1.1 Each of the above required independent circuits between the offsite tran,smission network and the ensite Class IE distribution system shall be:
a.
Determined OPEFABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and b.
Demonstrated OPEPASLE at least once per 18 months during shutdown by transferring unit power supply from the normal circuit to the alternate circuit.
4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:
a.
In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:
1.
Verifying the fuel level in the day tank, 2.
Verifying the fuel level in the fuel, storage tanks, 3.
Verifying the fuel transfer pump can be started and transfers fuel from the storage syst.em to the day tank, 4.
Verifying the diesel starts from ambient condition and accelerates to at leas. 900 rpm, for the 2850 kw generator and 514 rpm for the 4075 kw generators, in less than or equal to 10 seconds.
The generator voltage and frequency shall be 1 3g52 volts and 2: 57 Hz within 10 seconds after the start signal.
5.
Verifying the generator is synchronized, loaded to greater than or equal to its continuous rating, and operates for greater than or equal 60 minutes,
- 0ne time only exception for repair of Diesel 1-2A 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> action statement for operability of Diesel 1-2A may be extended to a period of 6 days provided Diesell-2A is returned to OPERABLE status as soon as maintenance is comoleted.
The provisions of specification 3.0.4 are not applicable for this one time change.
- 0ne time only exception during repair of Diesel 1-2A - the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> interval test is extended to /2 hours.
AMENDME!!T NO. T ~
FARLEY-UNIT 2 3/4 8-3