ML18012A464
| ML18012A464 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 01/10/1997 |
| From: | CAROLINA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML18012A463 | List: |
| References | |
| NUDOCS 9701220115 | |
| Download: ML18012A464 (9) | |
Text
ENCLOSURE 5 SHEARON HARRIS NUCLEAR POWER PLANT NRC DOCKET NO. 50-400/LICENSE NO. NPF-63 REQUEST FOR LICENSE AMENDMENT DIESEL FUEL OIL SYSTEM PRESSURE TESTING t'70i220ii5 POa 970ii0 AoaCK 05000e00 I
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4 ELECTRICAL POWER 'MS
'.C. SOURCES OPERATING SURVEILLANCE REQUIREMENTS (Continued) 4.8.1.1.2 (Continued)
- 13. Verifying that all diesel generator trips, except engine overspeed, loss of generator potential transformer ci rcuits, generator differential, and emergency bus differential are
-automatically bypassed on a simulated or actual loss of offsite power signal in conjunction with a safety injection signal.
- 14. Verifying that within 5 minutes of shutting down the EDG, after the EDG has operated for at least 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> at an indicated load of 6200-6400 kw, the. EDG starts and accelerates to 6900 + 690 volts and 60 + 1.2 hz in 10 seconds or less.
At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting" both diesel generators simultaneously, during shutdown, and verifying that both diesel generators accelerate to at least 450 rpm in less than or equal to 10 seconds.
At least once per 10 years by:
- 1) Draining each main fuel oil storage tank, removing the accumulated sediment, and cleaning the tank using a sodium hypochlorite solution or other appropriate leaning solution, and
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- 2) Performing a pressure test, of those ortions of the diesel ystem designed to Section III, subsection ND of the ASME Code, at a test pressure equal to 110K of the system design pressure.
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~This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup proc'edures, and as applicable regarding loading recommendations.
SHEARON HARRIS - UNIT 1 3/4 8-9 Amendment No. 60
Technical Specification B 3/4.8 Page B 3/4 8-2 n
Pressure testing of the diesel generator fuel oil piping at 110% of the system design pressure will only be required on the @~~ portions of (1) fuel oil transfer pump discharge piping to the day tank, (2) fuel oil supply from the day tank to the diesel vendor-supplied piping, and (3) fuel oil return piping from the diesel vendor-supplied piping to the day tank regulator valve. The exemptions allowed by ASME Code Section XI will be invoked for the atmospheric day tank and non-isolable piping.
ELECTRICAL POWER EMS BASES A.C. SOURCES D.C. SOURCES AMD ONSITE POWER DISTRIBUTION Continued The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that:
(1) the facility can be maintained in the shutdown or refueling condition for extended time periods, and (2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.
The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are based upon the recommendations of Regulatory Guides 1.9, "Selection of Diesel Generator Set Capacity for Standby Power Supplies,"
December 1979; 1. 108, "Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1. August 1977 as modified in accordance with the guidance of IE Notice 85-32, April 22, 1985; and 1. 137, "Fuel-Oil Systems f'r Standby Diesel Generators," Revision 1, October The inclusion of the loss of generator potential transformer circuit lockout trip is a design feature based upon coincident logic and is an a ipatory trip prior to diesel generator overspeed.
gg6<k e Surveillance Requirement for demonstrating the OPERABILITY of the station batteries are based on the recommendations of Regulatory Guide 1. 129 Testing and Replacement of Large Lead Storage Batteries for'Maintenance Nuclear Power Plants," February 1978, and IEEE Std 450-1980, "IEEE Recommended Practice for Maintenance,-Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations."
Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage on float charge, connection resistance values, and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates, and compares the battery capacity at that time with the rated capacity.
Table 4.8-2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level. float voltage, and specific gravity. The limits for the designated pilot cells float voltage and specific gravity. greater than 2. 13 volts and 0.015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater than 2.13 volts and not more than 0.020 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells not more than 0.010 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.
Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8-2 is permitted for up to 7 days. During this 7-day period: (1) the allowable values for electrolyte level ensures no physical damage to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not SHEARON HARRIS - UNIT 1 B 3/4 8-2
ELECTRICAL POWER EMS 1
BASES A.C. SOURCES D.C. SOURCES AND ONSITE POWER DISTRIBUTION Continued more than 0.020 below the manufacturer's recommended full charge specific gravity. ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity, ensures that an individual cell's specific gravity will not be more than 0.040 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an acceptable limit; and (4) the allowable value for an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function.
3/4.8.4 ELECTRICAL E UIPMENT PROTECTIVE DEVICES Containment electrical penetrations and penetration conductors are protected by either deenergizing circuits not required during reactor operation or by demonstrating the OPERABILITY of primary and backup overcurrent protection circuit breakers during periodic surveillance.
The Surveillance Requirements applicable to lower voltage circuit breakers provide assur ance of breaker reliability by testing at least one representative sample of each manufacturer's brand of circuit breaker. Each manufacturer's molded case and metal case circuit breakers are grouped into representative samples which are then tested on a rotating basis to ensure that all breakers are tested. If a wide variety exists within any manufacturer's brand of ci rcuit breakers, it is necessary to divide that manufacturer's breakers into groups and treat each group as a separate type of breaker for surveillance purposes.
The bypassing of the motor-operated valves thermal overload protection during accident conditions by integral bypass devices ensures that safety-related valves will not be prevented from performing their function. The Surveillance Requirements for demonstrating the bypassing oi the thermal overload protection during accident conditions are in accordance with Regulatory Guide 1. 106. "Thermal Overload Protection for Electric Motors on Motor Operated Valves," Revision 1. March 1977.
SHEARON HARRIS - UNIT 1 B 3/4 8-3
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ELECTRICAL POWER S cMS
/
'.C. SOURCES OPERATING M
SURVEILLANCE REQUIREMENTS (Continued) 4.8.1.1. 2 (Continued)
- 13. Verifying that all diesel generator trips, except engine overspeed, loss of generator potential transformer circuits, generator differential, and emergency bus ditferential are automatically bypassed on a simulated or actual loss of offsite power signal in conjunction with a safety injection signal.
- 14. Verifying that within 5 minutes of shutting down the EDG.
after the EDG has operated for at least 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> at an indicated load of 6200-6400 kw, the EDG starts and accelerates to 6900 + 690 volts and 60 + 1.2 hz in 10 seconds or less.
At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting" both diesel, generators simultaneously,'uring shutdown. and verifying that both diesel generators accelerate to at least 450 rpm in less than or equal to 10'seconds.
- h. At least once per 10 years by:
- 1) =-
Draining each main fuel oil storage tank. removing the accumulated sediment, and cleaning the tank using a sodium hypochlorite solution or other appropriate cleaning solution, and
- 2) Performing a pressure test, of those isolable portions of the diesel fuel oil piping system designed to Section III, subsection ND of the ASME Code. at a test pressure equal to 110K of the system design pressure.
~This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.
SHEARON HARRIS - UNIT 1 3/4 8-9 Amendment No.
ELECTRICAL POWER S TENS BASES A.C. SOURCES D.C. SOURCES AMD ONSITE POWER DISTRIBUTION Continued The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that:
(1) the facility can be maintained in the shutdown or refueling condition for extended time periods, and (2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.
The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are based upon the recommendations of Regulatory Guides 1.9.
"Selection of Diesel Generator Set Capacity for Standby Power Supplies,"
December 1979; 1.108, "Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977 as modified in accordance with the guidance of IE Notice 85-32, April 22.
1985; and 1. 137, "Fuel-Oil Systems for Standby Diesel Generators," Revision 1.
October 1979. Pressure testing of the diesel generator fuel oil piping at 110K of the system design pressure will only be required on the isolable portions of (1) fuel oil transfer pump discharge piping to the day tank, (2) fuel oil supply from the day tank to the diesel vendor-supplied piping, and (3) fuel oil return piping from the diesel vendor-supplied piping to the day tank regulator valve. The exemptions allowed by ASME Code Section XI will be invoked for the atmospheric day tanks and non-isolable piping.
The inclusion of the loss of generator potential transformer circuit lockout trip is a design feature based upon coincident logic and is an anticipatory trip prior to diesel generator overspeed.
The Surveillance Requirement for demonstrating the OPERABILITY of the station batteries are based on the recommendations of Regulatory Guide 1.129.
"Maintenance Testing and Replacement of Large Lead Storage Batteries for Nuclear Power Plants," February 1978, and IEEE Std 450-1980, "IEEE Recommended Practice for Maintenance, Testing, and Replacement of Large Lead Storage Batteries for Generating Stations and Substations."
Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage on float charge, connection resistance values. and the performance of'attery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates, and compares the battery capacity at that time with the rated capacity.
Table 4.8-2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage, and specific gravity. The limits for the designated pilot cells float .volt'age and specific gravity. greater than 2. 13 volts and 0.015 below the manufacturer's full charge specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater than 2. 13 volts and not more than 0.020 below the manufacturer's full charge specific gravity with an average specific gravity of all the connected cells not more than 0.010 below the manufacturer's full charge specific gravity, ensures the OPERABILITY and capability of the battery.
SHEARON HARRIS - UNIT 1 B 3/4 8-2 Amendment No.
I; t ELECTRICAL POWER S EMS BASES A.C. SOURCES D.C. SOURCES AND ONSITE POWER DISTRIBUTION Continued Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8-2 is permitted for up to 7 days. During this 7-day period: (1) the allowable values f'r electrolyte level ensures no physical damage to the plates with an adequate electron transfer capability; (2) the allowable value for the average specific gravity of all the cells, not more than 0.020 below the manufacturer 's recommended full charge specific gravity, ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity, ensures that an individual cell's specific gravity will not be more than 0.040 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained within an acceptable limit; and (4) the allowable value f'r an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function.
3/4.8.4 ELECTRICAL E UIPMENT PROTECTIVE DEVICES Containment electrical penetrations and penetration conductors are protected by either deenergizing circuits not required during reactor operation or by demonstrating the OPERABILITY of primary and backup overcurrent protection circuit breakers during periodic surveillance.
The Surveillance Requirements applicable to lower voltage circuit breakers provide assurance ot breaker reliability by testing at least one representative sample of each manufacturer's brand of circuit breaker. Each manufacturer's molded case and metal case circuit breakers are grouped into representative samples which are then tested on a rotating basis to ensure that all breakers are tested. If a wide variety exists within any manufacturer's brand of circuit breakers, it is necessary to divide that manufacturer's breakers into groups and treat each group as a separate type of breaker for surveillance purposes.
The bypassing of the motor-operated valves thermal overload protection during accident conditions by integral bypass devices ensures that safety-related valves will not be prevented from performing their function. The Surveillance Requirements for demonstrating the bypassing of'he thermal overload protection during accident conditions are in accordance with Regulatory Guide 1. 106, "Thermal Overload Protection for Electric Motors on Motor Operated Valves," Revision 1. March 1977.
SHEARON HARRIS - UNIT 1 B 3/4 8-3 Amendment No.
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