ML19317D115

Forwards LER 79-001/01T-0

ML19317D115
Person / Time
Site:	Peach Bottom
Issue date:	01/18/1979
From:	Cooney M PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19317D116	List: ML19317D115 ML19317D117
References
NUDOCS 7901250166
Download: ML19317D115 (3)

Text

r _.

o PHILADELPHIA ELECTRIC COMPANT

, 2301 M ARKET STREET PHILADELPHI A. PA.19101 (215)0414000 Jcnuer., 1.1, 1 i ?

'. r . Goyca :: . 'J r i ce r . nirector Office of Innpection and En force :ent fic, ion I United :itates Ut. clear lle e,u l s t o r y Co. ti .;c io n 3 '; 1 Park I, venue

i n r, o f P r u s s i .2, Pena.;/1vania 1MCv fic a r .M r . 'j r i o r :

CUljdECT. Licensce qvent i:e po r t narrative De ac r i , t ic:.

^

Tae f ollo 11n;', occu rrenco unc r '. a o r t e d to .ir reco  :',

r 4, d e , ion 1 Of fice of Inspection wi . a fo re. . 'nc un J.

. . i i li

's :Terence. Doc: at lu!aer .; u- f / 7

% .: /.

leport tio : Li.!: .i-7J-1/1T H2 port Date: January 1d, in7c Occurrence Date: January li, In?'

Fccility: Peach :'ottor. At or .i c Poa:- itat i a:.

R.D. 1, Selta, on 17jll Technical T.pecifiention :te fo re ne '

Technical fpecification 5.'; J.a()) repire'n r< orLiv "Perfor.a mce of structures, s y s t e t : .; , or co :ponents ch/ require re.iedial action or corrective .:asurea to prevent o:10: acion in ,

manner less conaervative than a s s u:.te d i1 the cecident a n a lj a m, in the safety analyuis report or technical specitications baser or discovery during plant life of conditions not specifically considered in the sa f ety analysis repor t, or technical specificctions that requirc re.cdial cetion or corrtetivs

.le a s u r e n i;o prevent the existence or levelo: a i, of :- n unanf^

coadition."

dP'7 \

i 3 9012 5 0 Ko fo

' ~'

r W Mr. no y c r-  :. Grier l', ,

.lannary lo. 1 T/ )  !. I'-1/li Gescription of the Event:

Desic.n arrors in cable desic,nat torn. 'er identirin duriar, a

- desir.n revicu of enble routing. i n i t ; a t e :. u a re.; ult of :n inve4Li",ation with respect to fire protection. Or Januar, a, 19'/9, ci;ht cables associated uibh ilPCI ar 1 hCIC in.;t r a: te n t power aupplies were found to be iaproperly decif,nateJ as non-3 art .uard cablen aral rooted accordingly. On January 1J, I Tl ) , L .; o additional cables associated with !!PCI flou l a a t r u,1e o t a t i o n r.n J control,.uore identifiad as iipraperly desi:nated and 30 routed.

The cables associnted with ECIC shoul.! have been ijentifica as uafer,uard cables and routed in tSe 7.A division. The ca'les a anacciated uitn 'iPCI <nould have br:en id"atifiM a: snf. uor' cacles and routed in t h e 7. 9 d i v i n i.o n . Dr revin. ijentiri'd L:iu follouind conditions.

U..!!IT 2 HCIC - DC Pouer Cable -

routed in non-carec,uard cray3 and a e.

Tray AC Pcuer Cable - routed il all non-ncf><uard trcy

!!PCI - DC Pouer J. ole - routed in all no n-c a re n,u a rd t r '; a AC Pouer v. :>la - routed in all >: Traja. not l' xle 1 :

CubLc Si.nal Cable - routed in all 7.H Trnya i.o c 1: aled .a .s ,

Cable.

U:iI.T 3-liCIC - UC Pouer Cable - routed in all non-safo turre trays AC Power Cable - routed in all non-nafer.uard trays :ad occupyin; with liPCI AC Pauer Catle tw aase verLical tray : e c '.1, > n UFC[ - DC Fouer Cable - routed in all non-Onfei,uard t r a y :;

-AC "ouar Cable - rooted in cl) non-nafefoard truys an.

occupyin; with RCIC AC Pouer Ca'.d th.

s a",e vertical tray acetion linaal Cable - routed la all non s:i re;:v a r d trayu The 125v DC instruoent pouer cables on bota !iPCl anc li':IC provide feed to static invertars. The 120v AC pouer cables previJe feed froit the static laverters to an i ns t rin w nt power .4upply, a square root converter and a flow. controller 1.1 each ay st e. . 'Tu c 1::nnl cable carries the output of the flou tranai:itter (Ff-23-22) to the input of the square root canvarter ( S'M T-2 2- 116 ) i;) the flou

- control loop of the liPCI nyateni.

4 1

bl .

e

.- e' '

.e ,

• lr . e;o y eM Ii . Urier -u 9 Anuary 1J, l 'fl 9  !. . 'I J - 1/ I '

Consequences of ivent:

The conacquences of this event are considered . :i n i c.a 1 for the _ follow ing reanon.::

1. Of the t.tn cable invalved the ci.,ht instra.'m t ,ia s a r cobica are located entirely in 1. h e c ai ' >

preadin room or the control roca. T 'i o c u c,l e tray 1 involved in this area are all nuisuically qualified. Fire detection devices have been innt?lled in the cabla apreadin;, nrca sinco cricinal installation.

2. The Unit 2 th'CI al. pial cable u.r; r.auLed concLetclj in careguard coaduit.

3 The Unit 3 si-jnal cable aan routed turoush areas of

. rainimal Tire hazard.

Cause of Lve.nt:

The cause of thia occurrence un.., the d: proper deninnation c,:

ten cabics associat :d wir,b HCIC and !!PC[ durin the du:,if,n p" :ce of the Peach Botto" Units.

Corractive Action:

l Immediate corrcetivc' action for the cijht instrut ant poaer cables involved stationing a fire watch on a fall tina basis in the area ubere thane cablea were liiproperly rooted a.dle nua cable routinas sere being desic,ned and installed. The fire aatch was naintained until the new cables were installed, or the unit u u .3 shutdown. Corrective action incl.uded routine, of ci;Tt c a bl e:,

.in nafeouard trays and conduit and correctly labeline all of the safer.uard cables. Unit 2 work aan completeJ January 1, I Tl'f .

~

Unit 3 uork una coupleted January 11 17/ , .

Yours truly,

"// . f[rC?vs

<$f

(.

l l1. J. Cooney Superintendent Gener; tion Division-;!uclear Attachment ec. Directcr, 1!iC Office of Icapection and E n f or c e.c.e a t.

- tir , llorcan 11. Heller, *!!!C Of rice o f il a n n y,e n a n t .

k' -

ai Prudra .inalyais j,

L.

,- _