05000316/LER-1982-097-03, /03L-0:on 821204,fire Detection Sys Alarm for 4 Kv Switchgear Room Received Due to Pyralarm Detector Alarming for No Apparent Reason.Caused by Low Setpoint.New Detector Installed

/03L-0:on 821204,fire Detection Sys Alarm for 4 Kv Switchgear Room Received Due to Pyralarm Detector Alarming for No Apparent Reason.Caused by Low Setpoint.New Detector Installed

ML20028C266
Person / Time
Site:	Cook
Issue date:	12/04/1982
From:	Palmer R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20028C263	List: 05000316/LER-1982-097-03, /03L-0:on 821204,fire Detection Sys Alarm for 4 Kv Switchgear Room Received Due to Pyralarm Detector Alarming for No Apparent Reason.Caused by Low Setpoint.New Detector Installed 05000316/LER-1982-098-03, /03L-0:on 821127,fire Detection Sys Alarm for 4 Kv Switchgear Room Received Due to Pyralarm Detector Alarming. Caused by Low Alarm Setpoint.Pyralarm Replaced 05000316/LER-1982-099-03, /03L-0:on 821123,during Surveillance Test on Automatic Load Sequence Timing Relays,Four ESF Timers Found to Exceed Allowed Tolerance.Caused by Instrument Drift. Timers Readjusted & Solid State Relays Under Review 05000316/LER-1982-100-03, /03L-0:on 821130,during Surveillance Test on Diesel Generator Load Shedding Relays,Six 4 Kv Loss of Voltage Relays Exceeded Allowed Tolerance.Caused by Instrument Drift.Undervoltage Relay Under Study 05000316/LER-1982-101-03, /03L-0:on 821124,discovered Time Delay of Two Automatic Load Sequence Relay Timers Not Repeatable & Timers Exceeded Allowed Tolerance.Caused by Toggle Switch Assemblies Being Out of Alignment.Assemblies Replaced ML20028C262
References
LER-82-097-03L-01, LER-82-97-3L-1, NUDOCS 8301070279
Download: ML20028C266 (1)

LER-1982-097, /03L-0:on 821204,fire Detection Sys Alarm for 4 Kv Switchgear Room Received Due to Pyralarm Detector Alarming for No Apparent Reason.Caused by Low Setpoint.New Detector Installed

Event date:
Report date:
3161982097R03 - NRC Website

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8 60 61 DOCKET NUM8ER bd 63 EVENT DATE 14 7b REPORT DATE 80 EVENT DESCAIPTION AND PROBABLE CONSENENCES O'o

! O # 2 I l DURING. NORMAL OPERATION, A FIRE DETECTION SYSTEM ALARM FOR THE 4KV SWITCHGEAR ROOM WAS i

l RECEIVED DUE TO A PYRALARM DETECTOR ALARMING FOR NO APPARENT REASON.

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