ML20199K576
| ML20199K576 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 04/04/1986 |
| From: | OMAHA PUBLIC POWER DISTRICT |
| To: | |
| Shared Package | |
| ML20199K547 | List: |
| References | |
| TAC-61237, NUDOCS 8604100148 | |
| Download: ML20199K576 (4) | |
Text
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e 2.0 LIMITING CONDITIONS FOR OPERATION 2.19 Fire Protection System (Continued)
(3) The provisions set forth in Section 2.19(2) do not apply to time periods during which Containment Integrated Leak Rate Tests are being performed.
(4)
Fire suppression water system shall be operable, except during system. testing, jockey pump maintenance or training (not to exceed 7 consecutive days) with both fire pumps, each with a minimum capacity of 1800 gpm, with their discharge aligned to the fire suppression header and automatic initiation logic for each fire pump.
a.
With less than the above required equipment:
(i) restore the inoperable equipment to operable status within 7 days.
(ii) if equipment is not restored to operable status within 7 days, prepare and submit a report to the Nuclear Regulatory Commission, pursuant to Section 5.9.3.1 of the Technical specifications, within the next 30 days, outlining the plans and procedures to be used to provide for the loss of the system and the cause of the malfunction.
b.
With no fire suppression water system operable:
(i) establish a backup fire suppression water rystem within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
(ii) notify the Nuclear Regulatory Commission, pur uant to Section 5.9.2.a of the Technical Specifications, outlining the cause of the malfunction, the actions taken, and the plans and schedule for restoring the system to operable status.
(iii)
If (i) above cannot be fulfilled, place reactor in 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 Ea Shutdown within the following thirty (30) hours.
o cac So" (5) The sprinkler system in the Diesel Generator Rooms, the sprink-1ers above the steam driven auxiliary feedwater pump, the on sprinkler / spray nozzle system in the compressor room, and the de-mo ms luge system in the personnel corridor between fire areas 6 and 20 Zo shall be operable except during system testing.
If Jnoperable:
l oo a.
Within one hour establish a continuous fire watch with backup Ee fire extinguishing equipment for those areas in which redundant systems or components could be damaged; for other areas, establish an hourly fire watch patrol.
Amendment No. #, 53 2-91
I 3.0 SURVEILLANCE REQUIREMENTS 3.15 Fire Protection System (Continued) l 3.
Verify that each fire pump starts automatically on low fire system pressure to maintain the fire suppression i
water system pressure 1100 psig.
e.
At least once per 3 years by performing a flow test of the system in accordance with Chapter 5, Section 11 of the Fire j
Protection Handbook, 14th Edition, published by the National Fire Protection Association using a clean water source, f.
At least once per year by visually inspecting the strainer on l'
the discharge side to the fire pumps to verify operability.
(3)
The sprinkler system in the Diesel Generator Rooms, the sprinklers above the steam driven auxiliary feedwater pump, the sprinkler /
spray nozzle system in the compressor room, and the deluge system in the personnel corridor between fire areas 6 and 20 shall be demonstrated to be operable:
)
l a.
at least once per 18 months:
1.
By visual inspection of the spray / sprinkler headers to l
verify their integrity.
l 2.
By visual inspection of each spray / sprinkler nozzle to verify no blockage and no obstruction of the spray area.
3.
By performing a system functional test which includes simulated automatic actuation of the system and verifies that all automatic valves actuated to their ccrrect position.
b.
At least once per 3 years by performing an air flow test through each open head spray / sprinkler header and verifying each open ahead spray / sprinkler nozzle is unobstructed.
(4)
Each fire hose station designated in Table 2-8 shall be verified to be operable:
a.
At least once per month by visual inspection of the station to assure all equipment is available and the system pressure (as determined at the jockey pump pressure gauge) is within limits.
b.
At least once per 18 months by removing the hose for inspection and reracking and replacing any degraded gaskets in the couplings.
j c.
At least once per 3 years by:
1.
Partially opening the hose station valves to verify valve operability and no blockage.
Amendment No. pp 53 3-81
r j
3.0 SURVEILLANCE REQUIREMENTS 3.15 'FW F Protection System (Continued)
(.
b.
At least once every 6 months by verifying each halon storage tank pressure and weight or level.
c.
At least once every 18 months by:
1.
Verifying the system, including associated ventilation dampers (if applicable), is actuated by a simulated test signal. Manual and automatic test signals will be alternated every 18 months.
2.
Visual inspection of spray headers to verify integrity.
3.
Visual inspection of all nozzles to ensure no blockage.
(9)
Battery powered smoke detectors in control room cabinets and consoles shall be demonstrated OPERABLE by performance of an operational test performed using a built-in test device at least semi-annually.
Basis The fire protection system provides a means for detecting, alarming, and extinguishing plant fires. The system is divided into fire detection subsystems and fire extinguishing subsystems.
l The fire detection subsystem is an instrumentation system which alarms control room operators of a fire, indicating fire location on a panel in the control room, and providing local indication from the detector in the affected zone.
The fire extinguishing system includes the sprinklers which protect the Diesel Generator Rooms. Also included are the hose stations which protect the immediate vicinity outside the entire plant, hose cabinets inside the intake structure, and other miscellaneous equipment.
Maintaining the operability of the fire protection system under various operating conditions is essential to insure the integrity of various nuclear safety-related plant systems and equipment. The above surveillance measures aid in accomplishing this objective.
1 Specification 3.15(2) provides a surveillance program that insures that silt and other material in the river water will not prevent the delivery of water to areas protected by fire water suppression systems.
I Amendment No. pp, 53 3-83
Attachment B Discussion, Justification, and No Significant Hazards Considerations The proposed changes to the Fort Calhoun Technical Specifications are being requested pursuant to 10 CFR 50.90 in order to address the new fire suppres-sion system installed in the compressor room. This system will provide protection to redundant safety-related cable tray trains. The modification was made as a part of OPPD's commitments for 10 CFR 50, Appendix R.
An addi-tional clerical change has been made to correct the heading number for the survie11ance requirements for the Fire Protection system from 3.19 to the correct designation of 3.15. There is no safety significance to this change.
Pursuant to 10 CFR 50.92, the following significant hazards considerations are addressed. First, the changes would not involve a significant increase in the probability or consequences of an accident previously evaluated. The changes are being made in order to provide operability and surveillance re-quirements for the new fire suppression system. The changes will provide additional assurance that the probability and consequences of a fire in the compressor room will be reduced. Additionally, the clerical change will cor-rect a typographical error.
Second, the pcssibility of a new.or different kind of accident previously evaluated should not be created. As noted above, the changes are to provide operability and surveillance requirements for the fire suppression system in the compressor room. This system is intended to reduce the likelihood and consequences of a fire in the compressor room.
Third, the change is not deemed to involve a significant reduction in a mar-gin of safety. The change is intended to provide an increase in safety by providing assurance of the operability of the fire suppression capability in the compressor room.
The Federal Register, Vol. 48, No. 67, Page 14670, contained Examples of Amendments That Are Considered Not Likely To Involve Significant Hazards considerations. The requested change is deemed to be similar to example (ii), "A change that constitutes an additional limitation, restriction, or control not presently included in the technical specification:
for example, a more stringent surveillance requirement." The proposed change does impose an additional limitation and control on a system currently not included in the technical specifications. Therefore, OPPD concludes that the proposed change does not involve any significant hazards considerations.