ML20031C375
| ML20031C375 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 09/02/1977 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| References | |
| RO-77-26, NUDOCS 8110070096 | |
| Download: ML20031C375 (1) | |
Text
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UCENSEE EVENT' REPORT 31s ?cch Poi-t 7
cotanct stocx:( { l l l l l
. plaass PauMt ALL asouuspc nosomasamM) 6 T
YN 1
[Ml I l 3 l iol P l 1] l 0 l 0l-l 0l0 l 0 l 0 l 0 l-10l 0l l 4l 1 l1l D'
uco.se wou 30 31 32 25 23 c1 14 13 7 89 asaw we ev., o m occur a
I Of 9l012 l Tl ?{ -
"r'i Nb l o l e, l.e,l-l o l il 5 nl 1018_) 014 ) 7 l 7]
I 80 '
hCONT l I l M l_L_j 74 73 68 SS 7 8 37 b3 SS 60 61 EVENT CCSCAPTCN interlock l
Q l Durine routine calibration of the Reactor Protection System vacuum trip 60 l
Q l switch RE15B (primary system pressure) was found to operate a 7 89 80 The unit was adjusted for proper setpoint* on l
7 89 Q l psi above the required trip poist.
RO-77-16 g
30 failute - See A0-11-75 dated 5/30/75.
69 80 Previous g l 8/5/7?.
I 7 89 80 m i e
M M
7 89 vanaram "co "aa **'#l cowo m.t con lIINl SIT lRIUI
[_A]
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[NJ coo
@ a a[ Ij,A_l ( J_j 17 43 44 47
.a 7
to u
ta l
CAUSE DESCAPTCN license on 6/14/77 now allows settoint un to 500 GC
@9l Amendment la to facilitv coerating l
Dri't proble-s with this type vide snan switch '(Barksdale Mode'l 31T-A32SS) 8 7
Q l vill be alleviated based on administrative flexibility to h ! psie.
l 7 89 "o'e"8' B oec=
ouc m o.
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to 12 13 4,
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7 a tocaro..
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[2] In i
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a0 44 45 7 8 9
to 11 L. PfASONNEL EXPOSURES I
,mem rm caem a.
@ l el o l 01 L7J 1 n 80 7 89 11 12 tj3 PERSONNEL NJU5ukS l
sansern essenpro.
l0l Ol 0l l NA ao I
14 7 ae 11 12 2'48ABLE CCNSEquENCES
{
Redundant svitch was ooerable.
r ao Q) None.
7 ae LOSS on DAMAGE TO FACRJTY l
tw asacmoe so
@ (_Zj l NA 7 89 10 l
P. 3UCITY 60 h l None 7 ea l
/
ADOITICNAL FACTCRS about 450 psig*.
l (Cause Description - Contd) 9 eo ss 7 ea I
NA w
El 7 Ss 4
a 8110070096 770902 PDR ADOCK 05000155 S
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