ML020070242

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TS Pages to Amendment 249 & 229 Change to Technical Specifications 28 Volt D.C. Distribution
ML020070242
Person / Time
Site: Salem  PSEG icon.png
Issue date: 01/04/2002
From:
NRC/NRR/DLPM
To:
References
TAC MB2042, TAC MB2043
Download: ML020070242 (8)
v • d • e


Text

ELECTRICAL POWER SYSTEMS 28-VOLT D.C. DISTRIBUTION - OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.5 The following D.C. bus trains shall be energized and OPERABLE:

TRAIN 1A consisting of 28-volt D.C. bus No. 1A, 28-volt D.C.

battery No. IA and battery charger lAl.

TRAIN lB consisting of 28-volt D.C. bus No. lB, 28-volt D.C.

battery No. lB and battery charger 1B1.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a. With one 28-volt D.C. bus inoperable or not energized, restore the inoperable bus to OPERABLE and energized 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 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 />.
b. With one required 28-volt D.C. battery charger inoperable, restore the inoperable battery charger to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or connect the backup charger for no more than 7 days 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 />.
c. With one or more 28-volt D.C. batteries with one or more battery cell parameters not within the Category A or B limits of Table 4.8.2.5-1:
1. Verify within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, that the electrolyte level and float voltage for the pilot cell meets Table 4.8.2.5-1 Category C limits, and
2. Verify within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, that the battery cell parameters of all connected cells meet Table 4.8.2.5-1 Category C limits, and
3. Restore battery cell parameters to Category A and B limits of Table 4.8.2.5-1 within 31 days, and
4. If any of the above listed requirements cannot be met, comply with the requirements of action f.
d. With one or more 28-volt D.C. batteries with one or more battery cell parameters not within Table 4.8.2.5-1 Category C values, comply with the requirements of action f.
e. With average electrolyte temperature of representative cells less than 65 0 F, comply with the requirements of action f.
f. Restore the battery to OPERABLE 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 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 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 />.

SALEM - UNIT I 3/4 8-11 Amendment No 249

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.2.5.1 Each D.C. bus train shall be determined OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and power availability.

4.8.2.5.2 Each 28-volt battery and above required charger shall be demonstrated OPERABLE:

a. At least once per 7 days by verifying that:
1. The parameters in Table 4.8.2.5-1 meet Category A limits.
2. The overall battery voltage is greater than or equal to 27 volts on float charge.
b. At least once per 92 days and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery discharge < 25.7 V and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery overcharge > 35 V by verifying that the parameters in Table 4.8.2.5-1 meet the Category B limits.
c. At least once per 92 days by verifying that:
1. There is no visible corrosion at terminals or connectors or the connection resistance is:

< 50 micro ohms for inter-cell connections,

< 200 micro ohms for inter-tier connections,

  • 70 micro ohms for field cable terminal connections, and
  • 500 micro ohms for the total battery connection resistance which includes all inter-cell connections (including bus bars), all inter-tier connections (including cable resistance) and all field terminal connections at the battery.
2. The average electrolyte temperature of the representative cells is Ž 65 0 F.
d. At least once per 12 months by verifying that:
1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2. Remove visible terminal corrosion and verify cell-to-cell and terminal connections are coated with anti-corrosion material.
3. The connection resistance is:

< 50 micro ohms for inter-cell connections,

<200 micro ohms for inter-tier connections,

<70 micro ohms for field cable terminal connections, and

< 500 micro ohms for the total battery connection resistance which includes all inter-cell connections (including bus bars), all inter-tier connections (including cable resistance) and all field terminal connections at the battery.

SALEM - UNIT 1 3/4 8-12 Amendment No 249

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

e. At least once per 18 months by verifying that the battery charger will supply > 150 amperes at Ž 28 volts for Ž 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
f. At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test.
g. At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Satisfactory completion of this performance discharge test shall also satisfy the requirements of Specification 4.8.2.5.2.f if the performance discharge test is conducted during a shutdown where that test and the battery service test would both be required.
h. At least once per 12 months, during shutdown, if the battery shows signs of degradation OR has reached 85% of the service life with a capacity less than 100% of manufacturers rating, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous performance test, or is below 90% of the manufacturer's rating.
i. At least once per 24 months, during shutdown, if the battery has reached 85% of the service life with capacity greater than or equal to 100% of manufacturers rating, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.

SALEM - UNIT I 3/4 8-12a Amendment No 249

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

TABLE 4.8.2.5-1 BATTERY CELL PARAMETER REQUIREMENTS CATEGORY A: CATEGORY B: CATEGORY C:

PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE VALUE DESIGNATED PILOT CELL CONNECTED CELL FOR EACH CONNECTED CELL Electrolyte >Minimum level >Minimum level Above top of Level indication mark and indication mark plates and not

  • 1/4 inch above and
  • 1/4 inch overflowing maximum level above maximum indication mark(a) level indication mark (a)

Float Voltage Ž2.13 V Ž2.13 V Ž2.07 V Specific Ž1.195 Ž1.190 Not more than Gravity(b) (c) 0.020 below the AND average of all connected cells Average of all Connected cells AND

Ž1.200 Average of all connected cells

ŽI.190 (a) It is acceptable for the electrolyte level to temporarily increase above the specified maximum level during equalizing charge provided it is not overflowing.

(b) Corrected for electrolyte temperature and level. Level correction is not required, however, when battery charging is < 2 amps when on float charge.

(c) Or battery charging current is < 2 amps when on float charge. This is acceptable only during a maximum of 7 days following a battery recharge.

SALEM - UNIT 1 3/4 8-12b Amendment No249

ELECTRICAL POWER SYSTEMS 28-VOLT D.C. DISTRIBUTION - OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.5 The following D.C. bus trains shall be energized and OPERABLE:

TRAIN 2A consisting of 28-volt D.C. bus No. 2A, 28-volt D.C.

battery No. 2A and battery charger 2AI.

TRAIN 2B consisting of 28-volt D.C. bus No. 2B, 28-volt D.C.

battery No. 2B, and battery charger 2B1.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a. With one 28-volt D.C. bus inoperable or not energized, restore the inoperable bus to OPERABLE and energized 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 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 />.
b. With one required 28-volt D.C. battery charger inoperable, restore the inoperable charger to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or connect the backup charger for no more than 7 days 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 />.
c. With one or more 28-volt D.C. batteries with one or more battery cell parameters not within the Category A or B limits of Table 4.8.2.5-1:
1. Verify within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, that the electrolyte level and float voltage for the pilot cell meets Table 4.8.2.5-1 Category C limits, and
2. Verify within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, that the battery cell parameters of all connected cells meet Table 4.8.2.5-1 Category C limits, and
3. Restore battery cell parameters to Category A and B limits of Table 4.8.2.5-1 within 31 days, and
4. If any of the above listed requirements cannot be met, comply with the requirements of action f.
d. With one or more 28-volt D.C. batteries with one or more battery cell parameters not within Table 4.8.2.5-1 Category C values, comply with the requirements of action f.
e. With average electrolyte temperature of representative cells less than 65 0 F, comply with the requirements of action f.
f. Restore the battery to OPERABLE 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 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 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 />.

SALEM - UNIT 2 3/4 8-13 Amendment No. 2 2 9

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.2.5.1 Each D.C. bus train shall be determined OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and power availability.

4.8.2.5.2 Each 28-volt battery and above required charger shall be demonstrated OPERABLE:

a. At least once per 7 days by verifying that:
1. The parameters in Table 4.8.2.5-1 meet Category A limits.
2. The overall battery voltage is greater than or equal to 27 volts on float charge.
b. At least once per 92 days and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery discharge < 25.7 V and once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after a battery overcharge > 35 V by verifying that the parameters in Table 4.8.2.5-1 meet the Category B limits.
c. At least once per 92 days by verifying that:
1. There is no visible corrosion at terminals or connectors or the connection resistance is:
  • 50 micro ohms for inter-cell connections,
  • 200 micro ohms for inter-tier connections,
  • 70 micro ohms for field cable terminal connections, and
  • 500 micro ohms for the total battery connection resistance which includes all inter-cell connections (including bus bars), all inter-tier connections (including cable resistance) and all field terminal connections at the battery.
2. The average electrolyte temperature of the representative cells is Ž 65°F.
d. At least once per 12 months by verifying that:
1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.
2. Remove visible terminal corrosion and verify cell-to-cell and terminal connections are coated with anti-corrosion material.
3. The connection resistance is:
  • 50 micro ohms for inter-cell connections,
  • 200 micro ohms for inter-tier connections, 5 70 micro ohms for field cable terminal connections, and

< 500 micro ohms for the total battery connection resistance which includes all inter-cell connections (including bus bars), all inter-tier connections (including cable resistance) and all field terminal connections at the battery.

SALEM - UNIT 2 3/4 8-14 Amendment No.229

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

e. At least once per 18 months by verifying that the battery charger will supply Ž 150 amperes at > 28 volts for Ž 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
f. At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for the design duty cycle when the battery is subjected to a battery service test.
g. At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Satisfactory completion of this performance discharge test shall also satisfy the requirements of Specification 4.8.2.5.2.f if the performance discharge test is conducted during a shutdown where that test and the battery service test would both be required.
h. At least once per 12 months, during shutdown, if the battery shows signs of degradation OR has reached 85% of the service life with a capacity less than 100% of manufacturers rating, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous performance test, or is below 90% of the manufacturer's rating.
i. At least once per 24 months, during shutdown, if the battery has reached 85% of the service life with capacity greater than or equal to 100% of manufacturers rating, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.

SALEM - UNIT 2 3/4 8-14a Amendment No.229

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

TABLE 4.8.2.5-1 BATTERY CELL PARAMETER REQUIREMENTS CATEGORY A: CATEGORY B: CATEGORY C:

PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE VALUE DESIGNATED PILOT CELL CONNECTED CELL FOR EACH CONNECTED CELL Electrolyte >Minimum level >Minimum level Above top of Level indication mark and indication mark plates and not

  • 1/4 inch above and
  • 1/4 inch overflowing maximum level above maximum indication mark'a) level indication mark(a)

Float Voltage Ž2.13 V Ž2.13 V Ž2.07 V Specific Ž1.195 Ž1.190 Not more than Gravity (b)(c) 0.020 below the AND average of all connected cells Average of all Connected cells AND

Ž1.200 Average of all connected cells

!1.190 (a) It is acceptable for the electrolyte level to temporarily increase above the specified maximum level during equalizing charge provided it is not overflowing.

(b) Corrected for electrolyte temperature and level. Level correction is not required, however, when battery charging is < 2 amps when on float charge.

(c) Or battery charging current is < 2 amps when on float charge. This is acceptable only during a maximum of 7 days following a battery recharge.

SALEM - UNIT 2 3/4 8-14b Amendment No.229

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