05000280/LER-1981-058-03, /03L-0:on 810906,smoke Detector Sys Battery Would Not Accept Charge.Caused by Removal of Line Fuse by Electrician.Line Fuse Replaced & Sys Returned to Svc

/03L-0:on 810906,smoke Detector Sys Battery Would Not Accept Charge.Caused by Removal of Line Fuse by Electrician.Line Fuse Replaced & Sys Returned to Svc

ML20010H728
Person / Time
Site:	Surry
Issue date:	09/22/1981
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010H722	List: 05000280/LER-1981-057-03, /03L-0:on 810827,circuit Breaker for Motor Operated Valve Found Open.Caused by Accidental Bumping. Breaker Reclosed & Appropriate Valve Indication Ack 05000280/LER-1981-058-03, /03L-0:on 810906,smoke Detector Sys Battery Would Not Accept Charge.Caused by Removal of Line Fuse by Electrician.Line Fuse Replaced & Sys Returned to Svc ML20010H721
References
LER-81-058-03L-02, LER-81-58-3L-2, NUDOCS 8109290223
Download: ML20010H728 (2)

LER-1981-058, /03L-0:on 810906,smoke Detector Sys Battery Would Not Accept Charge.Caused by Removal of Line Fuse by Electrician.Line Fuse Replaced & Sys Returned to Svc

Event date:
Report date:
2801981058R03 - NRC Website

text

ce. :s.

t.:

ue i Av at :u. A n :cv.uts:Or.

.. - =.. - =. = _ = V = >,, =.=.z

r. = 0. s uccc te.iest am. ca ivrt Au etcuint ixscauA: tem

.s-i i v ! A i S !'P ' E : 2 ;?.: O ! O!

- 4 0' O! 0; 0: 0

' C C l@ i : l i l l l ' 1 A iT

.,:iNsu :=

~

2.,. w a

a

..a ssi

.t # r. i:

- 11)! n h s 18 11 @(t "Ij".; IL ;.g C 5 0!010: 2

01 912 12 13! Ll/],

8-3 a

6.

e

Ar su Er=

j u

t.a e 04Tg b

MarcR :,ATt a;

Ivr: OEs:F.ir-r '. ve: es::;I A t;5 :Or :I

.E'. : ;-

[

With the -i: & "'wn, the e n-kr d etecter r r w batterv team nnted to be not acceptinF F-Charr*. The Electriciar rerovint :te batterv removed the line fuse, not

]*

realizine that this would ciasble the smcke detector panel. This was contrarv to T.S' 3.21.A.1, and recortable per T.5.-6.6.2.b.(2).

Sinec a walkdown of the affected 1

]'

plant areas was lernediate' i initiated. t ha Scalt? and safety of the public were not

_ii affe:ted.

I 5 5

$YSTEF

CAUSE

CA.Ef CDv8 VALV!

COOE 0001 SURCOLE CDu'ONEN* CODE SUS OCE Sua: cat

]

1A I Bj @ I A l@ l Clh l Cl Kl Tl BI RI Kl@ ]X l@ l zl@

f 5

1C 11 12 15 11 20

$ E OUE NTa AL C*0ut a E NCI R8'OR*

• EVIS!Oh

, g a,co. E VE N* *E AR R E *OR' N O.

CODE

'YP!

NO 1

6 iE :=T 181 11 1-1

! 0: 51 si I/

bb i

11. I i-t i lo i mb n

38 26 21 29 OL AC st.A FU UnE E**E -

5=U O:.wt.

A-A wvfAi N'RDd PRIME :Du8 COu'ONENT aK!A s : Tier.-

CN P Ar.-

META 0; MOURS

_)

$UBuiT"TEO 8 0RM buk.

SU**LI E R MANU8A:nJ8ft

! cl@i z i@

lz!@

i z l@

J.Oiofofof I Yl@

l NI@

ILl@

lP14i3 15 j@

x a

.e c

as c

c u

e CAUSE DESCRIFTION AND CCRRECTIVE A: rlCN5 h

] l The electrician was not aware that vannval of tha 14na fuse untild disable the smoke I

] ! detector system. The lin e f t ce t.m e ren1 mead and tha==n tr a riftacene e v = e== = = va *==~ A I 39 The battery chargers and feeder circuits vill be more clearly labeled, t

to service.

- s Je

]I E:

5 ActLIT'*

30g METWC2 05 siATV3 am POWE n-CTMER STATUS Of5:OVER*

Dis:Ovf Rv OE50RIPisON

- 4

]lcl@ lo1oIol@l N/A l

lA l@l operator observation i

i 5

1C u

13 45 46 80 e

acTivtTv CONTENT a

RELEASEC OFRELEA.SE 9VNT Cr ACTiv1*Y LOCATION OF RE LE ASE J ! z 1 @ l z l@l N/A I

l N/A I

E i

u o

• ! M50NN E L E 2 '05up El p

NurAt h B D P!

[3:ERIF*lON @

I o f a l o l@!z l@[

N/A i

s u

u

=

5:

8 5 *10NNE. ; AJVRIE!

'I NuvE t a E S:a rFTiON lololo!@!

N/A I

F 11 g:

001 C 8 05 Lar. ACE 70 s A li Tv /S.

tv E ets:=.. Ties 6/

Iz!G!

N/A i

s a:..s E cw -

UE:h:ts:=a ace.

Nj l

N/A i

1I IitI!e I' !!'

f8109290223 810922 3 7 PDR ADOOK 05000200 J. L. Vilron (804) 357-3184

~

0 PDR ~~ 1

I ATTACHMEhi 1 SURRY P0kTR STATION, UNIT 2 DOCKET NO:

50-281 REPORT NO:

81-05S/03L-0 EVENT DATE:

OC-06-81 1995 OF POWER TO SMOKE DETECTOR PANEL 1.

DESCRIPTION OF E'.Tr:

With the unit shutdown, the smoke detector system battery was noted to be not accepting a charge. The electrician sent to remove the battery did not wish to leave energized wiring exposed; he therefore removed the line fuse, not realizing that this disabled the smoke detector panel.

This event is contrary to Technical Specification 3.21. A.1 and is reportable per T.S.-6.e.2.b.(2).

A walkdown of the affected plant areas was immediately initiated, in accordance with T.S.-3.21.A.2.a.

2.

PROBAN J CONSEQUENCES AND STATUS OF REDUNDANT EQUIPMEN3" The fire detection system ensures that adequare warning capability is available to promptly detect and locate fires in their early stages and there-by reduce the potential for damage to safety related equipment.

Since a walkdown of the affected areas was immediately initiated, the health and safety of the public were not affected.

3.

CAUSE

The cause of this event is personnel error, in that the electrician did not realize that removing the line fuse would disable the smoke detector panel.

4.

IMMEDIATE CO,RRECTIVE ACTION:

A second elect.ucian investigated the loss of power, and found the charger de-energized. He insulated the bare wires and replaced the fuse.

5.

SUBSEQUENT CORRECTIVE ACTION:

None required.

6.

ACTION TAKEN TO PREVEhT RECURRENCE:

The smcke detector battery chargers and feeder circuits wi'l be more cle.arly labeled.

7.

GENERIC IMPLICATIONS:

None.