ML19199A495
| ML19199A495 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/13/1978 |
| From: | Herbein J Metropolitan Edison Co |
| To: | Grier B NRC Office of Inspection & Enforcement (IE Region I) |
| References | |
| GQL 6, GQL-0006, NUDOCS 7905030010 | |
| Download: ML19199A495 (2) | |
Text
-
edardm. M
/
/'
U
/
rse
~
e h,e w.:::,,3 g-
~
n n _m METROPOLITAN EDISON CCMPANY cuss:cmcecram neucunungsccuenncu PCST CFFICE SCX 542 REAclNG. PENNSYLVANI A 19603 TELEPHCNE 215 - 3230601 January 13, 1970 GQL CCC6
- /r. 3. H. Grier, Director U. S. :iuclear Regulatory Cennission n,,
n,.
-g.v 631 Park Avenue
. c.
e,.--4a,
.a-
.,va..4.a
' 9 L C e'
. 4.. 3 e
...a.
y
- ear Sir:
w o
.v,.2 p.,_-. e....* o.
,s7.2.a..7..c.3e es+4c.
U..4+.
u
. ic e n s e
.s c.
C--,. 60 u
rr.
Cocket :ic. 50-320 e...,..~,...o T.. v.
nul' e *.4. -
'.<'c. 7~s -C "s a
~'he folleving is Metropolitan Edison Ccapany's response to I. E. Sulletin !!c.
77-05 cencerning the failure of pin and socket type electrical ecnnecters in a ",c s'.
T C C A. ~- r.*..".~.~ e.n'. *. v 4.-'-. _ e... '.".". e
^."E -c^:
a m. = '. -y.~ ~.' a' a.?.
a " e
- e..s '. >.. ' c h,
s
.ua.
a_ a.,. 4.,,.,
o,. a.
3.-
- a. e A.
..a s %. 4 c n e.s.a.:
an+.
%.,. e o p p,,,.,x _,.a e A.
.c
., o.
-e
., e a_
a connector / cable assemblies of the general type referenced in 1. E. Eulletin
,,, v5 Tne connectors which vere tested by Sandia laboratcries, and fcund to be
.a + al s ". a..'.'
a.. A. s.- a.".
^ u, '.d.. e-a.
d e.'i-4 a...*e
". e.- a. o' 'k.e pi. o.m secka' + yp e,
c.* *,,x d
o.
'MI-2 does nct use any pin /secket cennectors for any power er control cable connecticns.
~hese ecnnecticns are ade by "hard viring", (i.e. terminal biceks, which are inside either notcr ter=inal tcxes er Burns i Ece ter=inal bcxes).
Of the safety systems invclved, pin and socket type con:.ectors are used cnly in the control red drive nechanisms (CPIM) and in the neutrcn detectors.
". a i '.k.. e.
"e m e C.'.'1.. - + " a.. e +.... ' e +., e ~. *. ~. s a - a ~. _ c u.d.-ad--
-,e.a*a d " " #..3a LOCA.
Tne CR"M vill trip upcn loss of pcVer initiated by a reactor trip.
It should be
..i.'.'
'a l'.'
c ~......'.- - A--_.."...a e a #. e
-. +. e. ' ". a'.,
s ".. ^ ul.d a
C...".'4 *. ai',
.4*
a c.'
- k
".,u-i a
a
(":.nse-ted") position. Additionally, a failure of a ccnnector en a centr:1 red
~,,, s ' '.' e r..*.. ^.* = ~. ~.- vcul ^.,~. c',a - =. a '.n.' a~ e. a o '.'.. 3-.+...*.u...-~_'A
- ..' ' 4.a e a,. ~..-
e safety related alar = indicatien.
a7^^'.
'.~."ase * ~-.- ' ~.s
..1.,.~-.,.
.a. = *. e ^. - ~ s a. a ~.. *.- a. g.i. e d.
.c c.e.-a*=
4...,
- w. n
... e. _. - +. p _.. e. 4.. c,..s,,a.
, _as a.
e.a.'a.. -y a v. s+_ a_~, d "
3...., -,a_.-a.'..-...
..<a.
.w
+.,
+
, gza,, a o e e. +., a-. u..., +. u. e e,-- a n,,
c_...,....c
,s 4 <.
u.., _.c +. a. n..a.. u~
u.
a.. -
- a. s e.. a ".*..- - - d.=.e-
~.s a-a a t.'a.
- <_ A.,
~... -. -., _ y '. ". _a. '.".ae."...'."
y a.4..'a_
. e vere tested by Sandia labcratcries.
3 - 3 j'*', 7
\\ jl
\\ '
- m1 4
M. -
4
.3..*'..
G 4 =..,
"s..-~.~.~.~~.~
?-
v'a.va.~~r
'^f,'v
^
aqL 00cc
..7
^e d. es
..m.' ".*.*.'4.a. ^ ". -l a.".
'..^
u+. 4.' i. e v... _ d '. k..e - a. ' '.. c ~... ~ 1".d e.s
"..._a* ' '.
electrical cennector assembliea of the type +ested by Sandia labcratories, or any other similar (pin and socket) type, in systems chat are 1ccated in-side containment, are subject to a LCU. environ ent and are required to be operable during a LOCA.
The respcnse to I. E. Sulle in :;o.77-05A vill not be submitted at this time because additional analysis is required to formulate a response which covers
.x. e a.e s u- ^ e o.' '.'..a'v a " -, ' a_ a..'.. Ve =. x, e.. ^ '. e a'+ ' e '~^ s 'm*. -.4 '.
.w.
. a a.e-
.1,..
%,a.4
..c.se.o I.
- ..,,,.+in %. T,i -0 c, A b 4.,. 4,.4a.,
.t v a r..
If you have any questiens concerning either of these bulletins, please contact
_e.
Sincerely, L
J. G. Herbein l.4C.
.s.,.. s. a., + _v. ~e. S..
. 4 v L'. m..c.
t -
- e
..v
.*v6 r_,-. s *. "< r ' 3... a ".,
'4.*.
'c.
1 c.,,.4. e c.
m.. e., e +. 4 -. g w..,v e
v U. S. :Tuclear Regulatory Cc ission c. e,5 )-
c a a s. 4.. 5. v.., D,.
,v,.
w
-e n
I i
h