ML20086U149
| ML20086U149 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 06/01/1995 |
| From: | GEORGIA POWER CO. |
| To: | |
| References | |
| OLA-3-A-078, OLA-3-A-78, NUDOCS 9508030289 | |
| Download: ML20086U149 (4) | |
Text
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(zffjS-00'3 b/Yffs hW DOCK USNRC 1TSH19153 LUBE OIL HIGH TEMPERATURE SWITCHL 14 A10 :23 O
noin Prior calibration was performed on 3/14/90. At i was found out of tolerance with an as found of 300 *F to trip?a t was calibrated and returned to service with a < rip of 199 F. It was removed from service on 3/23/90 as the suspectes cause.o tri switch calibration was checked and would not calibrate within tolerance. p. The It was I
l placed in storage on 3/23/90.
SWITCH TWO This switch was placed in service on 3/23/90 with a trip of 203.4 *F and a reset of 198.0 *F.
On 3/27/90 it was removed from service and it's calibration l
checiecL. As found was 203.5 *F to trip ar,d 199.5 c egreei to However e o d swit,e?t was found to be venting continuously anc stasequenty rep a s was placed in storage on 3/27/90.
ITHS19146 LUBE OIL HIGH TEMPERATURE SWITCH DG1A l
Prior calibration was performed on 3/3/90. At that time it found out of tolerance with a trip point of 211.0 *F and a reset of 203.1 *F switch was calibrated and returned to service with a trip point of 200.2 *F an a reset of 193 degrees On 3/30/90 the switch was moved for calibration and found out of tolerance with
.4 *F a a reset of 188.0 *F.
The switch operated O cluasn,a trip point of 1 shly. It was ce. wi a new switch calibratec to trip poin 201.27 *F and'a reset of 196.2
- F. The new switch was returnec, to service, oririnal switch is in storage.
ITSH19117 JACKET WATER HEATER OUT HIGH TEMPERATURE SWITCH DGIB Prior calibration on 3/14/90 was within tolerance with a trip point pf 201 *F and a reset of 193 *F.
On 3/26/90 switch was found out of tolerance with a Mo reset of 182.4. Further i1vestination determinec. a small leal. point of 190,.6 and a-A new switch aso failed leak test. A thirt swite'h calibrated correcty with a 1 rip noint of 200.67 ciegrees and a reset of 196.93 *F and was returned to service. "he old switches are '
in storage.
l ITSH19119 JACKET HEATER OUT HIGH TEMPERATURE SWITCH DG1B Prior calibration on 3/14/90 was within tolerance with a trip point of 200 *F cnd a reset of 194 'F.
1 On 3/26/90 the switch was found out of tolerance with a trin noint of188.2 *F cnd a reset of 180.6 *F. Further investigation determined a small Teak. A new switch was ino >erable due to a missing gasket. A third switch was cah~brated with p trip point of : 98.57 and a reset 191.90 and returned to service. Old switc 2es are I
i Qsnstorage.
9508030289 950601 92 PRCCECT PDR ADOCK 05000424 0o6218 C
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.O TEl@ERATURE SWrrCHES l
bGH TEMPERATURE SWITCH IB
~ in=1 calibrat)a Removed agplaced as n
490.
N cah$ ratio d not within tolerance. n was i
SWITCH 2 Switch was removed n
by MWO W 1 for calibrat'en cback. It was to tia=
was lacet. Tss switch m +ia bi on e trip and. reset anoes M sa rv mt not
,ly close upon reset? Pa m storage 3/27/90.
1TSF:19146 3 OIL HIGH TEMPERATURE SWITCH i
1A nin=1 calibration 3/1040.
Trin point was,
. - Swi was places,feh appeared ain storage on !
/E 1lM)0 on d
was rep has not : men
- -- _ _ agam.
SH191:,7 urr WATER HEATER OUT HIGH TEMPERATURE 3
BM%,ati n at Tocation of ene,ne.
us to aha++-g.
paoMf m. Switcli was t<sting.
gp 3/[16/90.
wi 1
,mwn 1,
testse on vend.or to o was W%wi=
So perate satsfactory Re"d*fe"#.hs!'n tn "L' Ten 1L*eL%"cet d
in storage on 3/27/90.
i O
92 PftOJECT i
0o6219 i
O 77bER HEADER OUT MGHTEMPERATURE
' ria=1 cali don 3/,14/90.
g attempt w h 8T % yb*
M E"*-
on3%&
in s<;orage at that time.
switch tw L
venc or.nd found to be sa ry on returned to storage.
Mg MAIN HEADER OUT HIGH
]
1A nb1683 o M and n retestec..
LT f
MAIN HEADER OUT HIGH
]
. I was re 9E1863 acec, m storage on 3/31/90. p a i
O TEST FOR CAILO TURE SWIICHES e o J B L " "ti a
- r "' Je 4"ar**r#M,of=m229**mr.M42gi% H
.r
$fN" b
. We wiI in tempe ture$mth ak reset.
U.
switches E*o not co we e
p g g en g swi to.ttemp,t to root c.use l
4 92 PftOJECT 006220 i
PRESSURE SWITCHES IPSL4903 3
gRMALTRIP
[- 3j PdMee&=bcedin storage on3/2"aM'.**nsor 1*m- "tr*%
and then was p 1PS4749A PRESSURE LUBE OIL 1A was romove l and7 ririsul calibration 10/2
. Swites won (d not cheeked on 3/3 19001 reset, was repla
, an in storage.
/k' P1 SSURE LUBE OIL Original ca'ibgon 1 3/3040 gr was E$ecEeYsa*thactobut rep an b storage Y
P1 SSURE LUBE OIL o
Dati Original calibration 10/21/88. See 1PS4749B.
h N
IC BOARD Nhile working MWO 19001 coald uced who'Liete*ctive, repbw*l in storage on noor tri Tse roun e
PROPOSED CAIf0N PRESSURE SWITCH TEST checu a!*Yi switch
- h "* 'Elll" To'.h"8T2 so o"
, inspect t se va ve
. seat eroa amam to.
]
se swite s, p
we a normal
~
cal ration nrococ ure to tut ft$ trip point overall rue.
If spoad correctly %we C
not re,tch to swi attempf iden t se root cause
- an.
l
=
LOGIC BOARD TESTING DG1B No further testing of the DG1B logic is planned at this time.
92 ""*3ect 006321
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