05000280/LER-1982-026

LER 82-026/03L-0:on 820618,electrical Penetration Found Improperly Sealed.Caused by Personnel Failure to Restore Penetration to Original State Following Cable Installation. Penetration Sealed

ML20055A104
Person / Time
Site:	Surry
Issue date:	07/09/1982
From:	Joshua Wilson VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20055A067	List: 05000280/LER-1982-026 05000280/LER-1982-036 05000280/LER-1982-074 ML20055A066
References
LER-82-026-03L-03, LER-82-26-3L-3, NUDOCS 8207150478
Download: ML20055A104 (2)

LER-2082-026,

Event date:
Report date:
2802082026R00 - NRC Website

text

_ _ _ . _ _ _ . - . ___

NdC 8 ORM 364 U.S. NVCLEAR REGuiA702Y ODMMISStch

.7 77)

LICENSEE EVENT REPORT QutRot siOct ! I 'l i i l iPLaast PRINT OR TYPE ALL REQUIRED IN#0RMA7tONI

, .l@

(

- l i l l. V I scausas A l S ::ce t P l Sl 2l@u010 l-sce=sa

i. 10101=wussaO ! 01 Oa l -1010 l@as411111111l@

uce=sa Tves ac 4. as @

OCP.7 I c f -1 Eu% l Ll@l015101010 l 218 l 1 l@l0 16 11 18 l8 12 @ l0 17 1 0l 91 8lso2l @ ,

a s si coc m uu .. es as a ve=v o4ra 24 ts ae oarsais EVENT des: RirTicN ANc PRosasLE :ONSE3utNCES h

,!ei:tlWith the unit at full power, an electrical penetration (fire barrier) was found to l _ _

[c.3  ! be improperly sealed. This event is contrarv to T.S.3.21.C.2. Other fire I l e t a l l orotection system remnined coerable . therefore the henith 'nd en'a*v mf thn I Ioiei ipublic were not a f fected. I ,

Io te I l 1 I

_l o 8 ? ! I I

toteiI so E C SUS E COMPONENT CODE 3 Coog 3 (

leist l Al Blh dh IE l@ lX IX lX iX I Xl i.h l Z @ [Z,J @

> . . io n u ia i ac 880084 rial OCOUmmth:1 mesomt arvesiom SVENTYEa# ASPORTWQ. COoE vvPE 40.

@,"LER/RO jg,? I812 2i :2 l l--I

2 I ol 21 61 2 as 1/l 27 IoI1I m as l -l si La.J 22 E7=" *aSon' e!'eEr **

w N wovas ^YduIr'"rE' s ro 7a .us. "sSuY mAUEs"aan t

A'Lt.l@ Lz l@ 1.2J@ l n in I o @ILt.l@ o I .LuJ@ M@ l 7 I a I a I a.2 l@

2 as as si ao 4i  : 42 .

CAUSE DESCRIPTION AND 00RRECTIVE ACTIONS li t o t IPersonnel installing a telephone cable failed to restore the penetration to its I i The penetration was sealed. I l i t i l l oricinal sente.

1 l'1 41 li t a l ! I I

titai 1 7 s - so A  % Pourga gTiegm gTArus OR DISCOvtav DESCairriON Ii4s1 [,yJ @ 11 InInl@l N/A l [CJhl O. C. Tnenection (

4,,,, g,,, o n . . . =

! astmasse e =ecease ovur o ,aCrivity @ l toCario= o. asaass @

N/A l N /A I 15 is t l.zj @ 12 l@l

. ic ii . . .o PG4S

~ O.8eNEL4xposungs

. v... ...., @

l*!?IIoIoIol@ Qi@l" y fi

' ' . u

• e=5o== ".. av'le muwega OlsentFTION

- 15 6 ael e101 O ! On l@li: N/A l

- 80

'r*v.a** **s$"',*r'o. m aacturv g

! N/A l t I ' I '.I b. @ io so eveuem NRC USE ONLv IS$U t* DE50mierion 4-I ' U'I 'l.li fb! N /A l lI l I!l Iiif It lk

' .: se .: i

' E Wilson -:ss (804) 357-3184 i P207150478'920709 PDR ADOCK 05000200 S PDR

ATTACHMENT 1 SURRY POWER STATION, UNIT NO. 2

)

DOCKET NO: 50-281 REPORT NO: 52-026/03L-0 EVENT DATE: 06-18-82 TITLE OF EVENT: Improperly Sealed Electrical Penetration

1. DESCRIPTION OF EVENT:

On June 18, 1982, with the unit at full power , a quality control inspector discovered an improperly sealed electrical penetration (fire barrier) at the pressure boundary wall between the Unit No. 2 computer room and the instrument shop. This is contrary to Technical Specification 3.21.G.2. The penetration was temporarily sealed and declared functional. This event is reportable per '

Technical Specification 6.6.2.b(3).

2. PROBABLE CONSEQUENCES and STATUS of REDUNDANT EQUIPMENT:

The functional integrity of fire barrier penetration seals in pressure boundary walls ensures that a fire cannot spread to adjacent spaces and the integrity of the control room remains intact. Since other fire protection measures were operational and the control room remained functional, the health and safety of the public were not affected.

3. CAUSE:

)

Person:lel installing a telephone cable punched a hole through an existing penetration seal. After completing the cable installation, the penetration was not resealed nor was a fire watch posted.

[ 4. IMMEDIATE CORRECTIVE ACTION:

j The immediate corrective action was to post a fire watch.

5. SUBSEQUENT CORRECTIVE ACTION:

The penetration was temporarily sealed. Subsequently the penetration was permanently sealed and a local leakage test was performed.

6. ACTION TAKEN TO PREVENT RECURRENCE:

It is suspected that the failure to seal the penetration occurred before procedures for control of fire barrier penetrations were placed in effect. -

Therefore, existing procedures should prevent recurrence.

i

7. GENERIC IMPLICATIONS:

None.

)

e D

.