ML20066J392
| ML20066J392 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/18/1982 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20066J396 | List: |
| References | |
| NUDOCS 8211240183 | |
| Download: ML20066J392 (5) | |
Text
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nruo3 EO
$dd TABLE 3.3.3-2 (Continued)
O O L, o>
Egg EMERGENCY CORE COOLING SYSTEM ACTUATION INSTRUMENTATION SETPOINTS O
80$
ALLOWABLE g*T TRIP FUNCTION TRIP SETPOINT VALUE na =
Ed D.
LOSS OF POWER 1.
Division 1 and 2 a.
4.16 kV Bus Undervoltage 1.
4.16 kV Basis 2912 +0, -291 volts (Loss of Voltage) 2912 volts 2.
120 volt Basis 83.2 +0, -8.3 volts 83.2 volts 3.
Time Delay 0.5 +0.5, -0.1 seconds 0.5 seconds b.
4.16 kV Bus Undervoltage 1.
4.16 kV Basis 3328 +0,
-167 volts (80P Load Shed) 3328 volts 2.
120 volt Basis 95.1 +0,
-4.8 volts u>
95.1 volts 32 3.
Time delay 0.5 +0.5, -0.1 seconds u) 0.5 seconds to c.
4.16 kV Bus Undervoltage 1.
4.16 kV Basis 3744 +93.6, -0 volts (Degraded Voltage) 3744 volts 2.
120 volt Basis 107 +2.7, -0 volts 107 volts 3.
Time Delay 9.0 1 0.5 seconds 9.0 seconds 2.
Division 3 a.
4.16 kV Bus Undervoltage 1.
4.16 kV Basis 3045 1 61 volts (Loss of Voltage) 3045 volts
,o 2.
120 volt Basis 87 1 1.7 volts m
87 volts h
3.
Time Delay 0.5 + 0.5, -0.1 seconds 0.5 seconds a
- See Bases Figure B 3/4 3-1.
- These are inverse time delay voltage relays or instantaneous voltage relays with a time delay.
The a
y voltages shown are the maximum that will not result in a trip.
Lower voltage conditions will result in decreased trip times.
?-
CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 3.
By verifying the OPERABILITY of the vacuum breaker isolation valve differential pressure actuation instrumentation with the opening setpoint 1.0 psid by performance of a:
a)
CHANNEL CHECK at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b)
CHANNEL FUNCTIONAL TEST at least once per 31 days, and c)
CHANNEL CALIBRATION at least once per 18 months.
Note 1:, Until restart after the first refueling outage, the following requirements shall apply:
3.6.5 c.
With the position indicator of an OPERABLE drywell post-LOCA: isolation valve for a vacuum breaker inoperable, verify the isolation valve to be closed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by local indication.
Otherwise declare
- the' isolation valve inoperable.
4.6.5.b.1 b.
Verifying the position indicator for the vacuum breaker isolation valve OPERABLE by observing expected valve movement during the cycling test.
4.6.5.b.2 l
At least once per 18 months by:
a)
Verifying the pressure differential required to open the vacuum breaker, from the closed position, to be less than or equal to 1.0 psid by use of an equivalent test weight and lever arm on the vacuum breaker, and b)
Verifying thg position indicator for the vacuum breaker isolation valve OPERABLE by performance of a CHANNEL CALIBRATION.
i l
l GRAND GULF-UNIT 1 3/4 6-45a Amendment No. 4 l
November 18, 1982
ELECTRICAL POWER SYSTEMS 3/4.8.4 ELECTRICAL EQUIPMENT PROTECTIVE DEVICES PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES LIMITING CONDITION FOR OPERATION 3.8.4.1 All primary containment penetration conductor overcurrent protective devices shown in Table 3.8.4.1-1 shall be OPERABLE.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2 and 3.
ACTION:
a.
With one or more of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.4.1-1 ineperable, declare the affected system or component inoperable and apply the appropriate ACTION statement for the affected system, and:
1.
For 6.9 kV circuit breakers, de-energize the 6.9 kV circuit (s) by tripping the associated redundant circuit breaker (s) within 72 huurs and verify the redundant circuit breaker to be tripped nt least once per 7 days thereafter.
2.
For 480 volt circuit breakers, remove the inoperable circuit breaker (s) from service by racking out the breaker within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify the inoperable breaker (s) to be racked out at least once per 7 days thereafter.
Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.-
b.
- <?he provisions of Specification 3.0.4 are not applicable to overcurrent devices in 6.9 kV circuits which have their redundant circuit breakers tripped or to 483 volt circuits which have the inoperable circuit breaker racked out.
SURVEILLANCE REQUIREMENTS
~
4.8.4.1 Each of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.4.1-1 shall be demonstrated OPERABLE:
a.
At least once per 18 months:
1.
By verifying that the medium voltage 6.9 kV circuit breakers are OPERABLE by selecting, on a rotating basis, at least 10% of the circuit breakers and performing:
a)
A CHANNEL CALIBRATION of the associated protective relays, and b)
An integrated system functional test which includes simulated i
automatic actuation of the system and verif,ying that each.
relay and associated circuit breakers and 0.vercurrent co0 trol circuits function as designed and as specified in Table 3.8.4.1-1.
c)
For each circuit breaker found inoperable during these functional tests, an additional representative sample of at least 10% of all the circuit breakers of the inoperable type shall also be functionally tested until no more failures are found or all circuit breakers of that type have been functionally tested.
GRAND GULF-UNIT 1 3/4 8-19 November 18, 1982
r Grand Gulf Mr. J. P. McGaughy Assistant Vice President Nuclear Production Mississippi Power & Lignt Company -
P. O. Box 1640 Jackson, Mississippi 39205 cc: Robert B. McGehee, Esquire Wise, Carter, Child, Steen and Caraway P. O. Box 651 Jackson, Mississippi 39205 Troy B. Conner, Jr., Esquire Conner and Wetterhahn 1747 Pennsylvania Avenue, N. W.
Washington, D. C. 20006 Dr. D. C. Gibbs, Vice President Middle South Energy, Inc.
225 Baronne Street P. O. Box 6100 New Orleans, Louisiana 70161 Mr. John Richardson Eississippi Power & Light Company P. O. Box 1640 Jackson, Mississippi 39205 Mr. R. Trickovic, Project Engineer i
Grand Gulf Nuclear Station.
Bechtel Power Corporation Gaithersburg, Maryland 20760 Mr. Alan G. Wagner Resident Inspector Route 2, Box 150 Port Gibson, Mississippi 39150 Office of the Attorney General Attn: William J. Guste, Jr.
Department of Justice, Suite C 7434 Parkins Road Baton Rouge, Louisiana 70808 pa a e
9 e
9 e
Grand Gulf cc:
(continued)
President Claiborne. County Board of Supervisors Port Gibson, Mississippi 39150 Of fice of the Governor State of Mississippi Jackson, Mississippi 39201 U. S. Environnental Protection Agency Attn: EIS Coordinator Region IV Office 345 Courtitnd Street, N. E.
Atlanta, Georgia 30309 4
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