ML18093A595
| ML18093A595 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 01/15/1988 |
| From: | Zupko J Public Service Enterprise Group |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-9, NUDOCS 8801260395 | |
| Download: ML18093A595 (3) | |
Text
e PS~G Public Service Electric and Gas Companv P.O 80>: E Hancocks Bridge, New Jersey 08038 Salem Generating Station U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
Dear Sir:
SALEM GENERATING STATION LICENSE NO. DPR-70 DOCKET NO. 50-272 UNIT NO. 1 SPECIAL REPORT 87-9 January 15, 1988 This Special Report addresses the circumstances surrounding the inoperability of the Fuel Handling Building fire detection equipment.
This report is being submitted within thirty days of the occurrence in accordance with the reporting requirements of Technical Specification 3.3.3.6 pursuant to Technical Specification 6.9.2.
MJP:pc Distribution SB01260395.880115 PDR ADOCK 05000272 S
DCD.
Sincerely yours, Ll/1AJ~~~n.
J. '4:.' ~:a;:-~ JrV General Manager-Salem Operations
- I
'.-... r*
SPECIAL REPORT NUMBER *-9
\\
PLANT IDENTIFICATION:
Salem Generating Station - Unit 1 Public Service Electric & Gas Company Hancock's Bridge, New Jersey 08038 IDENTIFICATION OF OCCuRRENCE:
Technical Specification 3.3.3.6 - Fire Detection Instrumentation Inoperaole For Greater Than 14 Days Event Date(s):
12/03/87 Report Date:
1/12/88 This report was initiated by Incident Report No.87-468.
CONDITIONS PRIOR TO OCCURRENCE:
Mode 6 Rx. Power 0%
DESCRIPTION OF OCCURRENCE:
On December 03, 1987 at 1400 hours0.0162 days <br />0.389 hours <br />0.00231 weeks <br />5.327e-4 months <br />, the Fuel Handling Building (FHB) fire detection equipment was declared inoperable.
The Control Room "FHB annunciator" was locked in the fire alarm condition due to a malfunctioning fire detector.
In accordance with the requirements of Technical Specification Action 3.3.3.6.a, an hourly roving fire watch was established.
Technical Specification 3.3.3.6 states:
"As a minimum, fire detecti~n instrumentation for each fire detection zone shown in Table 3.3-10 shall be OPERABLE."
Technical Specification Action 3.3.3.6. states:
"With the number of OPERABLE fire detection instruments less than required by Table 3.3-10:
- a.
Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> establish a fire watch patrol to inspect the zone(s) with the inoperable instrument(s) at least once per hour, and
- b.
Restore the inoperable instrument(s) to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the inoperablility and the plans and schedule for restoring the instrument(s) to OPERABLE status."
APPARENT CAUSE OF OCCURRENCE:
The root cause of the system inoperability is attributed to an equipment malfunction.
The equipment is an ionization smoke detector manufactured by Pyrotronics.
Apparently, the detector shorted resulting in the continuous alarm.
I
UNIT 1 SPECIAL REPORT.9 ':.
ANALYSIS OF OCCURRENCE:
The functional integrity of the FHB fire detection instrumentation ensures that fires will be detected promptly in order to mitigate the consequences of a fire, preventing the fire from spreading to adjacent portions of the facility.
This design feature minimizes the possibility of a single fire involving several areas of the facility.
This report satisfies the reporting requirements of Technical Specification Action Statement 3.3.3.6.b pursuant to Technical Specification 6.9.2 since the time between discovery and eventual repair of the fire detection equipment is greater than fourteen (14) days.
Appropriate actions were taken in accordance with the requirements of Technical Specification Action Statement 3. 3. 3.. 6. a to establish a one hour roving fire watch for the FHB area (Zone 69) once the impairments were identified.
With the placement of an hourly roving fire watch, a fire would not go undetected for a significant time period.
The manual area suppression equipment (hose reels and C02 fire extinguishers) remain operable although the detection equipment was not.
Automatic fire suppression is not required for this fire zone.
Therefore, it is reasonable to assume that a fire would be detected and extinguished before it could involve an adjacent fire zone.
This occurrence therefore involved no undue risk to the health or safety of the public.
CORRECTIVE ACTION:
The subject smoke detector has been replaced and the alarm system has been restored to operable status.
This event has been reviewed with all Fire Protection Department supervision.
G~&af:9-r Salem Operations MJP:pc SORC Mtg.88-005