ML20054K001
| ML20054K001 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 03/24/1982 |
| From: | MISSISSIPPI POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20054J949 | List:
|
| References | |
| 05-1-02-V-1, 5-1-2-V-1, NUDOCS 8206300288 | |
| Download: ML20054K001 (4) | |
Text
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g PLANT OPERATIONS MANUAL Volune 5 05-1-02-V-1 Section 02 Revision:
10 Date: 3-24-82 0FF-NORMAL EVENT 200CEDURE LOSS OF COMPONENT COOLING WATER SAFETY RELATED Prepared:
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Reviewed:
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Nuclear Plarrt' Quality.Juperintendent pittlicaY Review Reviewed:
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(/9 Operatiottk Superintendent Approved:
&d Essis~ tant Plant Manager 3 [/d[ N PSRC:
1 List of Ef fective Pages:
Page:
Revision:
1-3 10
- k 8206300288 820625
<p PDR ADOCK 05000416
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CRAND GULF NIICLEAR STATION OFF-NORMAL EVENT PROCEDITRE
Title:
Loss of Component No.:
05-1-02-V-1 Revis ion :
10 ( Page :
1 Cooling Water l
C ~.,t 0 e
1.0 PtfRPOSE/ DISCUSSION 1.1 The purpose of this procedure is to provide the operator with the instructions necessary to combat a Loss of Component Cooling Water (CCW).
1.2 This procedure may interface with the Emergency Plan and the Emergency Procedures.
I 1.3 Failure of the CCW System interrupts the cooling water supply to the following component s :
1.3.1 Reactor Rectre Pump motors and bearings 1.3.2 Reactor Recire Pump seals 1.3.3 Reactor Water Cleanup Pump coolers
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1.3.4 RWCU Non-ReFenerative Heat Exchanger 1.3.5 Drywell Equipment Drain Sump cooler 1.3.6 Fuel Pool Heat Exchangers Q!?
1.3.7 CRD Pump Oil Coolers NOTE 4
A loss of CCW can be either a partial (reduced flow capability) or -
a complete loss. Any partial loss of flow that is insu f ficient to maintain Reactor Recirc Pump temperatures below the alarm setpoint will be treated as a complete loss of CCW.
2.0 SYMPTOMS 2.1 Complete loss of CCW
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2.1.1 CCW Low Low Discharge Pressure alarm 2.1.2 RWCU Isolation 2.1.3 Reactor Recire Pump temperature alarms i
1 lA i
p e.
GRAND CULF NUCLEAR STATION OFF-NORMAL EVENT PROCEDURE
Title:
LL ' of Component No.:
05-1-02-V-1 Revision:
10 Page:
2 Coos. - Water 2
2.1.4 Reactor Recirc Pump CCW Flow Low alarm 2.1.5 CCW Pump Emergency trip alarms 2.1.6 CCW System in Containment Trouble alarm 2.1.7 Fuel Pool Heat Exchanger Isolation 2.2 Partial loss of CCW 4
2.2.1 Pump Discharge Pressure Low alarm 2.2.2 CCW Surge Tank Low Level alarm 3.0 AUTOMATIC ACTIONS 3.1 Standby CCW Pump starts on low pressure 3.2 Makeup valve to surge tank opens on low level 3.3 Fuel Pool Heat Exchangers isolate on low flow 3.4 RWCU System isolates on Demin Inlet high temperature
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4.0 IMMEDIATE OPERATOR ACTIONS 4.1 Complete loss of CCW I
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4.1.1 Scram the reactor, refer to ONEP 05-1-02-I-1, Reactor Scram.
l 4.1.2 Manually trip the Recirc Pumps within 1 minute, or any noted increase in*Recire pump or motor winding temperatures.
s 4.1.3 Verify automatic actions occur.
4.1.4 If surge tank level is low and cannot be restored, secure any running CCW Pumps.
4.1.5 Notify Shif t Supervisor of plant conditions.
4.2 Partial loss of CCW 4.2.1 Verify standby CCW pump start s.
4.2.2 Isolate Fuel Pool Heat Exchangers.
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GRAND GULF NUCLEAR STATION OFF-NORMAL EVENT PROCEDURE
Title:
Loss of Component lNo.:
05-1-02-V-1 Revision:
10 Page:
3 Cooling Water l
,,d 4.2.3 Isolate RWCU System.
4.2.4 Monitor Reactor Recire Systems.
When a high temperature alarm is ' received on a Reactor Recirc a.
pump, perform complete loss of CCW step 4.1.
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4.2.5 Notify Shift Supervisor of plant conditions.
i 5.0 SUBSEQUENT ACTIONS 5.1 Complete loss of CCV 5.1.1 Run CRD pumps alternately until otl temperature cannot be maintained less than 130 'F on local indicators.
5.1.2 khen CRD pumps are secured, isolate both Reactor Reci,rc loops to protect pump seals.
I 5.1.3 Investigate and correct the cause of loss of CCW.
5.1.4 Cooldown per 10I 03-1-01-3, Plant Shutdown.
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i 5.1.5 Investigate the necessity for implementing the Emergency Plan.
5.2 Partial loss of CCW i
5.2.1 Restore normal CCW flow as soon as possible.
5.2.2 Reduce Reactor power to minimize heat load.
1 5.2.3 Continue operation per I0I 03-1-01-2, Power Operation.
t 5.2.4 Refer to SOI 04-1-01-P42-1, Component Cooling Water for Supplying Fuel Pool Heat Exchangers from Standby Service Water.
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