ML19257C499
| ML19257C499 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 01/25/1980 |
| From: | Maine Yankee |
| To: | |
| Shared Package | |
| ML19257C495 | List: |
| References | |
| NUDOCS 8001290238 | |
| Download: ML19257C499 (5) | |
Text
3 23 FIRE PROTECTION SYSTEMS Applicability:
Applies to the operating status of the plant installed fire protection rystems.
Objective:
To define the operating status of the installed fire protection systems.
Specification:
A.
As a minimum, the smoke detection instrumentation for each of the protected zones shown in Table 3.23-1 shall be operable whenever the equipment in that zone is required to be operable.
With the number of operable sensors in any zone less than required by Table 3.23-1:
1.
Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, establish a roving fire patrol to inspect the affected zone (s) at least once per hour, and 2.
Restore the inoperable instrument (s) to operable status within 14 days, or prepare and submit a Special Report to the Commission withia the next 30 days outlining the cause of the malfunction anu plans for restoring the instrument to operable status.
EXCEPTION:
If the affected zone is either Zone 5 or Zone 28, the inspection required in A.1 above shall be performed at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.
If the affected rane is either Zone 11, 12 or 13, the inspection required in A.1 above shall be performed at least once per 211 hours0.00244 days <br />0.0586 hours <br />3.488757e-4 weeks <br />8.02855e-5 months <br />, and the RCP pump bearing, winding and Lir temperatures shall be monitored once per hour.
B.
The fire suppression water system shall be operable at all times with: two high pressure pumps each with a capacity of 2500 gpm with their discharge aligned to the fire suppression header, and automatic initiation logic for each pump, and a minimum of 7 ft. of water in the fire pond.
1.
With less than the above required equipment, restore the inoperable equipment to operable status within 7 days or prepare and submit a Special Report to the Commission within the next 30 days outlining the plans and procedures to be used to provide for the loss of redundancy in this system.
2.
With no fire suppression water system operable, within 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s:
a.
Establish a backup fire suppression water system.
b.
Notify the Commission by the~ telephone or telegraph.
l 3.23-1 8 00120 0 M 3 8
3 Prepare and submit a Special Report to the Commission within the next 14 days outlining the cause of the malfunction and the plans for restoring the system to operable status, or 4.
If 2a. above cannot be fulfilled, place the reactor in Hot Standby within the next hour and in Cold Shutdown within the following thirty (30) hours.
C.
The Cardox system shall be operable, with a minimum level of 75% and a minimum pressure of 250 psig in the storage tank, whenever the equipment in the protected areas is required to be operable.
With the Cardox system inoperable:
1.
Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, establish a roving fire watch to check the affected area (s) at least once per hour, and provide backup fire suppression equipment for the affected area (s).
2.
Restore the system to operable status within 14 days or prepare and submit a Special Report to the Commission within the next 30 days outlining the cause of inoperability and the plans for restoring the system to operable status.
D.
The fire hose stations in the following locations shall be operable whenever the equipment in the area is required to be operable:
Hose House #1 -- West side of RCA Storage Bldg.
Hose House #2 -- Near Demi;.. Water Storage Tank.
Hose House #3 -- South side of Turbine Bldg.
Hose House #6 -- North side of PAB, near Sta. Serv.
Transformers.
The following hose station shall be operable whenever the emergency panel and/or auxiliary charging pump ara required to be operable:
PAB Eley. 11 ft. Hose rack 3 The following hose stations shall be operable whenever the charging pumps are required to be operable:
PAB Elev. 21 ft. Hose racks 9 and 11 The following hose station shall be operable whenever the emergency feed pumps (clectric) are required to be operable:
PAB f. lev. 21 ft. Hose rack 11 The following hose stations shall be operable whenever equipment in the switchgear rooms or cable tray rooms is required to be operable:
3 23-2
TB Elev. 35 ft. and 45 ft. Hose racks 17 and 18 The following hose stations shall be operable whenever equipment in the containment motor control center is required to be operable:
Steam and Feedwater Valve Areas - Hose rack 21 The following hose stations shall be operable whenever the steam driven feed pump is required to be operable:
Steam and Feedwater Valve Area - Hose racks 20 and 21 The following hose stations shall be operable whenever the safeguards pumps are required to be operable:
Containment Spray Pump Building Hose racks 23 and 24 The following fire hose stations shall be operable whenever the component cooling water system or service water system is required to be operable:
FS-68, 69, 72, 84, 85----Turbine Euilding 21 root elevation FS-81, 82, 83------------Turbine Building 39 foot elevation With a hose station inoperable, route additional equivalent capacity hose to the unprotected area from an operable hose station within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.
E.
Penetration fire barriers protecting safety related areas shall be functional at all times.
With a penetration fire barrier non-functional, within one hour a continuous fire watch shall be established on at least one side of the affected penetration.
F.
The following spray and/or sprinkler systems shall be operable whenever the component cooling water system or service water system is required to be operable.
1.
Sprinkler System directly under Turbine Building 39 foot elevation.
2.
Component Cooling Water Pump Sprinkler.
The following spray and/or sprinkler systems shall be operable whenever the diesel generators are required to be operable:
1.
Turbino Lube Oil Storage Room Sprinkler The following spray and/or sprinkler systems shall be operable whenever the equipment in the protected area is required to operate.
1.
Protected Cable Vault Sprinkler 2.
Containment Spray Pump Motor Area Sprinklers 3-23-2a 1840'105
With one or more of the above required spray and/or sprinkler systems inoperable:
1.
Within one hour establish a fire watch patrol with backup fire suppression equipment for the unprotected area (s) to inspect the unprotected area (s) at least once per hour.
2.
Restore the system (s) to operable status uithin 14 days or, in lieu of any other report required by Specification 5 9.1, prepsre and submit a Special Report to the Commission within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system (s) to operable status.
G.
The following foam fire suppression systems shall be operable whenever the component cooling water system or service water system is required to be operable.
1.
Turbine Lube Oil Reservoir Foam System 2.
Hydrogen Seal Oil Foam System The following foam fire suppression systems shall be operable whenever the protected diesel generator is required to be operable:
1.
Diesel Generator Room A Foam System 2.
Diesel Generator Room B Foam System With one or more of the above required foam systems inoperable:
1.
Within one hour establish a fire watch patrol with backup fire suppression equipment for the unprotected area (s) to inspect the unprotected area (s) at least once per hour.
2.
Restore the system (s) to operable status within 14 days or, in lieu of any other report required by Specification 5.9.1, prepare and submit a Special Report to the Commission within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system (s) to operable status.
BASIS Operability of the fire detection instrumentation ensures that adequate warning capability is available for the prompt detection of fires.
This capability is required in order to detect and locate fires in their early stages.
Prompt detection of fires will reduce the potential for damage to safety related equipment and is an integral element in the overall facility fire protection program.
1840 106i 3-23-2b
In the event that a portion of the Fire Detection Instrumentaticn is inoperable, the establishment of frequent fire patrols in the affected areas is required to provide detection capability until the Inoperable Instrumentation is returned to service.
The operability of the fire suppression systems ensures that adequate fire suppression capability is available to confine and extinguish fires occurring in any portion of the facility where safety related equipment is located.
The fire suppression system consists of the water sy*:cem, sprinkler systems, CO, and fire 2
hose stations. The collective capability of the fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major element in the facility fire protection program.
In the event that portions of the fire suppression systems are inoperable, alternate backup fire fighting equipment is required to be made available in the affected areas until the affected equipment can be restored to cervice.
In the event that the fire suppression water system becomes inoperable, immediate corrective measures must be taken since this system provides the major fire suppression capability of the plant. The requirement for a twenty-four hour report to the Commission provides for prompt evaluation of the acceptability of the corrective measures to provide adequate fire suppression capability for the continued protection of the nuclear plant.
The functional integrity of the fire barrier penetration seals ensures ', hat fires will be confined or adequately retarded from spreading to adjacent portions of the facility. This design feature minimizes the possiblity of a single fire rapidly involving several areas of the facility prior to detection and extinguishment.
The fire barrier penetration seals are a passive element in the facility fire protection program and are subject to periodic inspections.
During periods of time when the seals are not functional, a fire patrol is required to frequently inspect in the vicinity of the affected seal until the seal is restored to functional status.
1840 107 3 23-3
TABLE 3 23-1 SMOKE DETECTION INSTRUMENTS MINIMUM ZONE LOCATION OPERABLE SENSORS 1
Service Bldg. Cable Vault P
2 Protected Cable Tray Room 4
3 Unprotected Cable Tray Room 8
4 Reactor Containment MCC 2
5 Cable Entrance Rooms 2
6 Protected Switchgear Room 4
7 Unprotected Switchgear Room 3
8 Diesel Generator Room 1A 1
9 Diesel Generator Room 1B 1
10 Computer Room 1
11 Reactor Coolant Pp 1 1
12 Reactor Coolant Pp 2 1
13 Reactor Coolant Pp 3 1
14 Containment Cable Trays Elev. 46 7
15 Containment Cable Trays Elev. 63 9
16 Containment Cable Trays Eley. 20 6
17 Personnel Air Lock Area 2
18 Containment Spray Pump Building 4
19 Steam and Feedwater Valve Area 8
20 Emergency Feed Pump Area 1
21 Aux. Chg. Pp. Emergency Shutdown Pnl.
4 22 Chg. Pp Cable Trays - Elev. 21 2
24 Compactor Area 2
25 Fuel Pool Area 1
26 Fire Pump House 2
27 Cable Trays, PCCW area 10 28 Cable Vault Vent. Intake 1
29 Cable Tray Room Duct Detector 1
30 Control Room Vent. Intake 1
31 Control Room Cabinets 5
32 Cable Chase 1
1840 108' TABLE 3 23-1