ML20205S482
| ML20205S482 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 05/30/1986 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20205S487 | List: |
| References | |
| NUDOCS 8606120524 | |
| Download: ML20205S482 (4) | |
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ATTACHMENT TO LICENSE AMENDMENT AMENDMENT NO. 50 TO FACILITY OPERATING LICENSE NO. NPF-12 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages as indicated. The revised pages are identified by-amendment number and contain vertical lines indicating the areas of change.
The corresponding overleaf pages are provided to maintain document completeness.
Remove Pages Insert Pages 3/4 8-1 3/4 8-1 l
3/4 8-2 3/4 8-2 3/4 8-3 3/4 8-3 o
3/4 8-4 3/4 8-4 3/4 8-5 3/4 8-5
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3/4 8-6 3/4 8-6 3/4 8-6a 3/4 8-7 3/4 8-7 o
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IE CCRRECTED PAGE RgD6220" 8889*g,
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3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION
- 3. 8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:
a.
Two physically independent circuits between the offsite transmission network and the onsite Class 1E distribution system, and b.
Two separate and independent diesel generators, each with:
1.
A separate day fuel tank containing a minimum volume of 300 gallons of fuel, 2.
A separate fuel storage system containing a minimum volume of 42,500 gallons of fuel, and 3.
A separate fuel transfer pump.
APPLICABILITY:
MODES 1, 2, 3 and 4.
ACTION:
a.
With either an offsite circuit or diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance i
Requirements 4.8.1.1.1.a and 4.8.1.1.2.a.3 within one hour and at I
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 and two diesel generators 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 STANDBY 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 following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
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b.
With one offsite circuit and one diesel generator of the above required A.C. electrical power sources 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.3 within one hour and at I
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 one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at least HOT STANDBY 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 following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Restore at least two offsite circuits and two diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the time of initial loss or be in at least HOT STANDBYi 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 following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
SUMMER - UNIT 1 3/4 8-1 AMENDMENT NO. 50 CORRECTED PAGE
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
I b)
Verifying the diesel starts on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads.
After energization, the steady-state voltage and frequency of the emergency busses shall be maintained at 7200 720 volts and 60 1.2 Hz during this test.
5.
Verifying that on an ESF actuation test signal, without loss of offsite power, the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes.
The generator voltage and frequency shall be 7200 1 720 volts and 60 1 1.2 Hz within 10 seconds after the 7
auto-start signal; the steady-state generator voltage and
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frequency shall be maintained within these limits during this test.
After 5 minutes of standby operation verify that on a simulated loss of offsite power, a) the loads are shed from the emergency busses b) the diesel generator does not connect to the bus for at least 5 seconds, and c) that subsequent loading of the diesel generator is in accordance with design requirements.
6.
Simulating a loss of offsite power in conjunction with an ESF actuation test signal, and a)
Verifying de-energization of the emergency busses and load shedding from the emergency busses.
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b)
Verifying the diesel starts in the emergency mode, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected emergency (accident) loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the emergency loads.
After energization, the steady state voltage and frequency of the emergency busses shall be maintained at 7200 720 volts and 60 1.2 Hz during this test.
c)
Verifying that all automatic diesel generator trips, except engine overspeed, low lube oil pressure and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concurrent with a safety injection actuation signal.
I SUMMER - UNIT 1 3/4 8-5 AMENDMENT NO. 50
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ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
I f.
At least once per 10 years or after any modifications which could l
affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 504 rpm in less than or equal to 10 seconds.
I 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 solution or its equivalent, 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 at a test pressure equal to 110 percent of the system design pressure.
4.8.1.1.3 Reports - All diesel generator failures, valid or non-valid, shall be reported to the Commission pursuant to Specification 6.9.1.
Reports of diesel generator failures shall include the information recommended in Regu-latory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.
If the number of failures in the last 100 valid tests (on a per diesel generator l
basis) is greater than or equal to 7, the report shall be supplemented to include the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.
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SUMMER - UNIT 1 3/4 8-6a AMENDMENT NO. 50 CORRECTED PAGE