05000293/LER-1980-007-03, /03L-0:on 800120,false Detection Alarm,Originating from 4kV Switchgear Room B,Annunciated on Panel C-94 in Control Room.Apparently Caused by Dust from Fire Retardant Beam Coating.Alarm Cleaned

From kanterella
(Redirected from ML19296B799)
Jump to navigation Jump to search
/03L-0:on 800120,false Detection Alarm,Originating from 4kV Switchgear Room B,Annunciated on Panel C-94 in Control Room.Apparently Caused by Dust from Fire Retardant Beam Coating.Alarm Cleaned
ML19296B799
Person / Time
Site: Pilgrim
Issue date: 02/18/1980
From: Mcloughlin M
BOSTON EDISON CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19296B796 List:
References
LER-80-007-03L, LER-80-7-3L, NUDOCS 8002210514
Download: ML19296B799 (1)


LER-1980-007, /03L-0:on 800120,false Detection Alarm,Originating from 4kV Switchgear Room B,Annunciated on Panel C-94 in Control Room.Apparently Caused by Dust from Fire Retardant Beam Coating.Alarm Cleaned
Event date:
Report date:
2931980007R03 - NRC Website

text

JRC FORM 366 7 77'-

LICENSEE EVENT REPORT CdNTROL BLOCK: l l

l l

l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 0

Ql alp lPlSl 1l@l0l0l-l0l0l0 0 l 0 l-l 0 l 0 l@l 4 l 1 l 1 l 1 l 1 l@l l

l@

o 1

8 9 LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 GAT 58 CON'T So[RCE I b hl 0 ] 5 l 0 l - l 0 l 2 l 9 l 3 @l 0 l 1 l 2 l 0 l 8 l 0 l@ 0 l 2 l 1 l 8 l 8 l 0 l@

0 1'

8 60 61

~ DOCKET NUMBER 68 63 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o

2 lOn January 20, 1980, a fire detectlon alarm, originating from the

'B' 4Kv Switchgear I o

a l Room, annunciated on Panel C-94 in the Control Room. An immediate investigation de-l ltermined that no fire existed. Security was notified and a fire patrol established l

o 4

l to ensure early warning of any adverse conditions that might develop.

l o

s 1 o 161 I l

O 7

l l

o 8

80 7

8 9 CE CODE SUSC E COMPONENT CODE SUBCODE SL E

l A l B l@ l X l@ W@ [I lN l Sl Tl Rl Ul@ l El@ l Zl@

o 9

7 8

9 10 11 12 13 18 19 20 SEQUENTI AL OCCURRENCE REPORT REVISION LE R 'RO EVENT YEAR REPORT NO.

CODE TYPE NO.

@,REPO g l218 l0 l

- l l0 0 l7 l l/]

l0 l3 lLl l-0l 22 23 24 26 27 28 29 30 31 32 K N A ON ON PL NT ME HOURS 22 S B IT FOR B.

SU PLIE MANUFACTURER lZl@lZl@

Zl@

lZ l@

0l0l0l0l lN l@

lN l@

Aj@

Pl4l3l5l@

33 34 35 36 3/

40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS @

i o lThe apparent cause of the false alarm was dust from fire retardant beam coating l

l triggering the fire detector. On January 23, 1980 while checking to identify the I

i i

l apparently defective detector, the alarm cleared. Subsecuent testing verified proper l 7

i 3

operation and no detector replacement was required. Maintenance equipment temporarily l g l operating in the 'B' Switchvear Room disturbed the dust.

l 7

8 9 80 ST S

% POWER OTHER STATUS DIS O RY DISCOVERY DESCRIPTION lHl@ l0l0l0l@l N.A.

l { @l Operational Event l

i s

ACTIVITY CO TENT RELE ASED OF RELEASE AMOUNT OF ACTIVITY LOCATION OF RELE ASE N.A.

l l

N.A.

l l Z l @ lZ l@l 1

6 7

8 9 10 tt 44 45 80 PERSONNEL EXPOSURES TYPE @l DESCRIPTION NUMBER [TTTl l 0 0l0l@l l

N.A.

l PERSONNEL INJUHIES NUMBER

DESCRIPTION

l0l0l0l@l N.A.

l i

a 7

8 9 11 12 80 LOSS OF OR DAMACE TO FACILITY TYPE

DESCRIPTION

lZl@l N.A.

l 9

7 8 9 10 80 ISSU E D DE CRIPTION 800221()

I*

L2_ailn181

.A.

l llllll1llI!l2 7

8 9 10 68 69 30,

M. Thomas McLoughlin 617-746-7900 NAME OF PREPARER PHONE: