ML20154R851
| ML20154R851 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 03/21/1986 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20154R848 | List: |
| References | |
| NUDOCS 8603310216 | |
| Download: ML20154R851 (18) | |
Text
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i I
ATTACHMENT B PROPOSED CHANGE TO APPENDIX A TECHNICAL SPECIFICATION TO OPERATING LICENSES
Revised Pages:
I NPF-11 NPF-18 j
3/4 8-22 3/4 8-22 3/4 8-23 3/4 8-23 3/4 8-24 (replace) 3/4 8-24 (replace) 3/4 8-25 (replace) 3/4 8-25 (replace) 3/4 8-25a (new) 3/4 8-25a (new) i 1447K 8603310216 B60321 ADOCK 0 % 3 3 PDR P
i
ELECTRICAL POWER SYSTEMS PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES v
LIMITING CONDITION FOR OPERATION 3.8.3.2 All primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 shall be OPERABLE.
APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
a.
With one or more of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 inoperable, declecs the effected 3,3 tea, ec cea.p....;...ep.ceblo
.pri, G =
m.u cpproprict:..CTIOM stet ;;r.t for th ;fft ted syst;; er.d.
^
1.
For 6.9 KV circuit breaker, de-energize the 6.9 KV circuit (s) g(d by trippir.g the associat redundant circuit breaker (s) within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify the edundant circuit breaker to t a tripped at least once per 7 days ereafter.
2.
For 480 volt circuit reakers, remove the inoperable circuit breakers (s) from s vice by racking out the breaker within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verif the inoperable breaker (s) to be racked out at least once per 7 days thereafter.
Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
(
The provisions of Specification 3.0.4 are not applicable to overcurrent b.
y devices in E.9 "" circuits which have their redundant circuit breakers tripped, er tc '80 velt circuit; dich have the in0perable circuit brecher; racked out cr remo/e4, j
SURVEILLANCE REQUIREMENTS 4.8.3.2 Each of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 shall be demonstrated OPERABLE:
a.
At least once per 18 months:
[g !{.[b kV 1.
By verifying that the cediu
- 1t g
- 6.9-KV circuit breakers are OPERABLE by selecting, on a rotating basis, at least 10% of the circuit breakers and performing
ed a)
A CHANNEL CALIBRATION of the associated protective relays, and h6 ((p b)
An integrated system functional test"which includes simulated g'/
automaticactuationofth8kTystemandverifyingthateach-p rel2y and 20 cciated circuit breaker and overturrent g'\\6[(L'[
-contrcl circuit; function at de:fgned and 2: Speci#ied in Tobi d'n.0. 3. 2 1.+o dem onstmic 14af #4 cuer tl p eac tmbca
(*
9 fro-fe x design reatams wei% opermW I4+ sits -
c)
For each circuit breaker found inoperable during these functional tests, an additional representative sample of at least 10% of all the circuit breakers of the inoperable type shall also be functionally tested until no more failures are found or all circuit breakers of that type v
have been functionally tested.
LA SALLE - UNIT 1 3/4 8-22
j raseer(3) pa y /4 g-22 3
Restore the protective device (s) to OPERABLE status or de-energize the circuit (s) by tripping the associated circuit breaker or racking a.
out or removing the inoperable circuit breaker within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, declare the affected system or component inoperable, and verify the circuit breakeF to be tripped or the inoperable circuit breaker racked out, or removed, at least once per 7 days thereafter; i
I f
I 1
1 1
I-
}
9
-w-m-m
-. - -,,, -,,, ~, _ -.,,,
r
.--,w 7-
,_yey c.-,.
w-,,, - - - -..
,--,m-,--,--w,--,--
,--,%-c---,
.,-y--,n,
ELECTRICAL POWER SYSTEMS v
SURVEILLANCE REQUIREMENTS (Continued) 4Y90 volf 2.
By selecting and functionally t ting a representative sample of at least 10% of each type of '!:utr eclt:g circuit breakers.
Circuit breakers selected for functional testing shall be selected on a rotating basis.
Fur Um Ic.e voltage cirteit brechcr; the n i al trip ::tpcint and hert circuit re:pente n
ti c; cre listed i-Table 3.S. 3.2-1.
Testing of these circuit breakers shall consist of injecting a current in excess of 120%
of the breakers nominal setpoint and measuring the response / css 4Isan or time.
The measured response time will be compared to the manufacturer's data to insure that it is withi-20%- f a equ J to Circuit (207.
value specified for test current by the manufacturer.
breakers found inoperable during functional testing shall be For restored to OPERABLE status prior to resuming operation.
each circuit breaker found inoperable during these functional tests, an additional representative sample of at least 10% of all the circuit breakers of the inoperable type shall also be functionally tested until no more failures are found or all circuit breakers of that type have been functionally tested.
At least once per 60 months by subjecting each circuit breaker to an b.
inspection and preventive maintenance in accordance with procedures prepared in conjunction with its manufacturer's recommendations.
LA SALLE - UNIT 1 3/4 8-23 "V
m-e
TABLE 3.8.3.2-1 PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES TRIP
RESPONSE
SYSTEM /
)(a) COMPONENT DEVICE NUMBER SETPOINT
. TIME POWERED AND LOCATION (Amperes)
(Milliseconds / Cycl a.
6.9 KV Circuit Breakers
- 1. Swgr. 151 (Compt. 4) 840(c) 83.3/5 RR Pump 1A
- 2. Swgr. 152 (Compt. 4) 840(c) 83.3/5 RR Pump 1B
- 3. Swgr. 151-1 (Bkr. 2A) 720(b) 83.
5 RR Pump 1A, low speed
- 4. Swgr. 152-1 (Bkr. 28) 720(b) 3.3/5 RR Pump 18, low speed b.
480 VAC Circuit Breakers
- 1. Swgr. 136Y (Compt.
160(c) 50/3 VP/Pri. Cont.
403C)
Vent Supply Fan IB
- 2. Swgr. 135Y (Compt.
160(
50/3 VP/Pri. Cont.
203A)
Vent Supply Fan 1A c.
480 VAC (Molded Case) Ci uit Breakers 1.
Type K-M Cat # N MH-160/ZM6C a) MCC 136Y-2 174 N.A.
RR/MOV 1833-F0678 I
(Compt. C b) MCC 136 -2 72 N.A.
RR/MOV 1B33-F023B (Compt A3) c) MCC 34X-1 10 N.A.
NB/MOV1 1821-F001 (C pt. B3) d)
C 134X-1 10 N.A.
NB/MOV 1821-F002 Compt. B4)
/
LA SALLE - UNIT 1 3/4 8*24 Amendment No. 18
TABLE 3.8.3.2-1 (Continued)
TRIP
RESPONSE
SYSTEM /
DEVICE NUMBER SETPOINT TIME COMPONENT AND LOCATION (Amperes)
(Milliseconds / Cycles) POWERED 480 VAC (Molded Case) Circuit Breakers (Continued) e)
RH/MO S E12-F009 (Compt. 05) f)
RI/MOV 1E51-F063 (Compt. E4) g)
RR/MOV 1833-F023A (Compt. A1) h)
RR/MOV 1B33-F067A (Compt. A4) i)
MCC 133-1 50 N.A.
RT/MOV 1G33-F102 (Compt. C2) j)
MCC 133-1 10 N
NB/MGV 1821-F005 (Compt. E1) k)
N8/MOV 1B21-F016 (Compt. B1) 1)
RH/MOV lE12-F]99A (Compt. E1) m)
RT/MOV 1G33-F001 (Compt. E4) n)
N.A.
WR/MOV 1WR-180 (Compt. A5) o)
RH/MOV 1E12-F0998 (Compt. D6) p)
.3 N.A.
VP/MOV IVP1138 (Compt. H5) q)
N.A.
VP/MOV IVP114A (Compt. H4) r)
VP/MOV IVP113A (Compt. H3) s)
VP/MOV IVP114B (Compt. H t)
MCC 136y 2 7
N.A.
WR/MOV 1WR179 (Compt / A4) u)
RT/MOV IG33-F101 (Co pt. D3) v)
M 135Y-1 10.5 N.A.
RT/MOV 1G33-F100 Compt. 04) w)
MCC 133-1 10.5 N.A.
RT/MOV IG33-F106 (Compt. C3)
)
RI/MOV 1E51-F076 (Compt. 05)
(a) Breaker time only.
Relay time not included.
(b) Pickup value for voltage restraint time overcurrent relay.
2 (c) Pickup current level.
Actual trip point shall be determined using the l
response time from the characteristic curve, i
LA SALLE - UNIT 1 3/4 8-25 l
l
, TABLE 3. 8.3.2-1 PRIMARY CONTAINMENT PENETRATION CONDUCTOR
_OVERCURRENT PROTECTIVE DEVICES SYSTEM /
DEVICE NUMBER COMPONENT
,AND LOCATION
, POWERED A.
6.9 kV Circuit Breakers
- 1.
Swgr. 151 (Bkr. 3A)
RR Pump 1A Primary - fast speed 2.
Swgr. 152 (Bkr. 3B)
RR Pump 1B Primary - fast speed 3.
Swgr. 151-1 (Bkr. 2A)
RR Pump 1A, low speed Primary 4.
Swgr. 152-1 (Bkr. 2B)
RR Pump 1B, low speed Primary 5.
Swgr. 151-1 (Bkr. 4A)
RR Pump 1A fast speed Backup 6.
Swgr. 152-1 (Bkr. 4B)
RR Pump 1B, fast speed Backup B.
4.16kv Circuit Breakers 1.
Swgr. 141Y (Bkr. lA)
RR Pump 1A low speed Backup 2.
Swgr. 142Y (Bkr. IB)
RR Pump 1B, low speed Backup C.
480 VAC Circuit Breakers 1.
Swgr. 136Y (Compt.
VP/Pri. Cont.
403C)
Vent Supply Fan IB 2.
Swgr. 135Y (Compt.
VP/Pri. Cont, 203A)
Vent Supply Fan LA 3/4 8-24 LaSalle-Unit 1 DOCUMENT 0818r/0011r
D e4e'w ^:.'s 6 8
$ y.
pj A*/ O
- 4. etATt col h l'C W~T-D.
480 VAC (Moldtd C""*) Circuit Br" keres pcu:250 e
1.
Type K-M Cat # NZ MH6-160/ZM6C (a) a) MCC 136Y-2 RR/MOV IB33-F067B (Compt. C4) b) MCC 136Y-2 RR/MOV IB33-F023B (Compt. A3) c) MCC 134X-1 NB/MOV IB21-F001 (Compt. B3) d) MCC 134X-l NB/MOV IB21-F002 (Compt. B4) c) MCC 136Y-1 (Normal)
RH/MOV IE12-F009 (Compt. DS) f) MCC 136Y-2 RI/MOV LE51-F063 (Compt. E4) g) MCC 135Y-1 RR/MOV IB33-F023A (Compt. A1) h) MCC 135Y-1 RR/MOV IB33-F067A (Compt. A4) i i) MCC 133-1 RT/MOV LG33-F102 (Compt. C2) j) MCC-133-1 NB/MOV IB21-F005 (Compt. EL) k) MCC-136Y-2 NB/MOV IB21-F016 (Compt. B1)
A
- 1) MCC 136Y-2 RH/MOV IE12-F099A (Compt. EL) m) MCC 136Y-1 RT/MOV IG33-F001 (Compt. E4) n) MCC 136Y-2 WR/MOV LWR 180 (Compt. A5) o) MCC 136Y-2 RH/MOV IE12-F0998 (Compt. D6) p) MCC 136Y-1 VP/MOV LVPil3B (Compt. H5) q) MCC 136Y-1 VP/OV IVPil4A (Compt. H4) r) MCC 136Y-1 VP/MOV IVF113A (compt. H3) 3/4 8-25 LaSalle-Unit 1 DOCUMENT 0818r/00llr
SYSTEM /
COMPONENT DEVICE NUMBER POWERED AND LOCATION s) MCC 136Y-1 VP/MOV IVPil43 (Compt. H6) t) MCC 136Y-2 WR/MOV IVR179 (Compt. A4) u) MCC 135Y-1 RT/MOV LG33-F101 (Compt. D3) v) MCC 135Y-1 RT/MOV IG33-F100 (Compt. D4) w) MCC 133-1 RT/MOV IG33-F106 (Compt. C3) x) MCC 136Y-2 RI/MOV lE51-F076 (Compt. DS) y) MCC 135X-1 (Emerg)
RH/MOV IE12-F009 (Compt. C2) 2.
Type K-M Cat #NZ M12V-630/ZM12AV a) MCC 135X-2 (Compt. E4)
VP/Pri. Cont.
Vent Supply Fan LA Backup b) MCC 136X-2 (Compt. G4)
VP/Pri. Cont.
Vent Supply Fan IB Backup (a) Backup breakers are located in the back of the respective MCC.
3/4 8-25a LaSalle-Unit 1 DOCUMENT 0818r/0011r
ELECTRICAL POWER SYSTEMS PRIMARY CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT PROTECTIVE DEVICES LIMITING CONDITION FOR OPERATION 3.8.3.2 All primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 shall be OPERABLE.
APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
a.
With one or more of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 incperable, declare the Offected :ystem er cc p n nt incper:b!: nd apply th:
Oppr0 print ^CTION ;tatement for the affected Syste 2"
1.
For 6.9 KV circuit breakers, de-nergize the 6.9 KV circuit (s) by tripping the associated re ndant circuit breaker (s) within inser4 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify tha red dant circuit breaker to be tripped at,
least once per 7 days' the after.
2.
For 480 volt circuit b akers, remove the inoperable circuit breakers (s) from serv ce by racking out the breaker within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and verify he inoperable breaker (s) to be racked out at least once per days thereafter.
Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
The provisions of Specification 3.0.4 are not applicable to overcurrent devices in 5.0 KV circuits which have their redundant circuit breakers tripped, Or t '80 v lt circuit; which have the in per:ble circuit breakert racked out; or removed.
SURVEILLANCE REQUIREMENTS 4.8.3.2 Each of the primary containment penetration conductor overcurrent protective devices shown in Table 3.8.3.2-1 shall be demonstrated OPERABLE:
a.
At least once per 18 months:
kW and 14.16 kV 1.
By verifying that the -^'""- "-"- 6.9 MV circuit breakers are OPERABLE by selecting, on a rotating basis, at least 10% of the circuit breakers and performing:
a)'
A CHANNEL CALIBRATION of the associated protective relays, and 5)
An integrated system functional test which includes simulated h[M automatic actuation of thMystem and verifying that : ch J
relay and 0;;0ciated circuit breaker; :nd Overcurrent-0(d'[d d
d: f
- ified ir
- ntrol circuit; functi n 0; dC *gned and :
Tabl e ' 0 d' ese* rem'um^w+'M ofer*\\>le lid
2-1 d"
5 prs 4ec k 3
$o M s-f c)
For each circuit breaker found inoperable during these
@g c
functional tests, an' additional representative sample of at least 10% of all the circuit breakers of the inoperable j
type shall also be functionally tested until no more failures are found or all circuit breakers of that type have been functionally tested.
LA SALLE - UNIT 2 3/4 8-22
ruseer G pa cy /4 g-22 3
Restore the protective device (s) to OPERABLE status or de-energize the circuit (s) by tripping the associated circuit breaker or racking a.
out or removing the inoperable circuit breaker within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, declare the affected system or component inoperable, and verify the circuit breaker to be tripped or the inoperable circuit breaker racked out, or removed, at least once per 7 days thereafter; O
ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)
//80 voH Byselectingandfunctionallytesting[arepresentativesample 2.
of at least 10% of each type of le.cr vuiLoge circuit breakers.
Circuit breakers selected for functional testing shall be selected on a rotating basis.
for the !:'-* "^!teg Ci rcui t-tre ker; the ner r:1 trip ::tpcint :-d chcrt circuit re: pent i
time cr listed i-T b!: 3.S.3.2-1.
Testing of these circuit breakers shall consist of injecting.a current in excess of 120%
of the breakers nominal setpoint and measuring the response time. The measured response time will be compared to pt/ess lbaH cr manufs:* 1rer's data to insure that it is within : 20% of a equal fo troSL value soecified for test current by the manufacturer. Circuit breakers found inoperable during functional testing shall be restored to OPERABLE status prior to resuming operation.
For each circuit breaker found inoperable during these functional tests, an additional representative sample of'at least 10% of all the circuit breakers of the inoperable type shall also be functionally tested until no more failures are found or all circuit breakers of that type have been functionally tested.
b.
At least once per 60 months by subjecting each circuit breaker to an inspection and preventive maintenance in accordance with procedures prepared in conjunction with its manufacturer's recommendations.
l l
l LA SALLE - UNIT 2 3/4 8-23
TABLE 3.8.3.2-1 t MSE9T PRIMARY CONTAINMENT PENETRATION CONDUCTOR I
OVERCURRENT PROTECTIVE DEVICES gggg TA 6L6 TRIP
RESPONSE
SYSTEM /
DEVICE NUMBER SETPOINT TIMEds/ Cycles)(a) COMPONENT AND LOCATION (Amperes)
(Millisec POWERED a.
6.9 KV Circuit Breakers
- 1. Swgr. 251 (Compt. 8) 840(c) 3.3/5 RR Pump 2A
- 2. Swgr. 252 (Compt. 7) 840(c) 83.3/5 RR Pump 28
- 3. Swgr. 251-1 (Bkr. 2A) 720(D) 83.3/5 RR Pump 2A, low speed
- 4. Swgr. 252-1 (Bkr. 2B) 720(b 83.2/5 RR Pump 2B, low speed b.
480 VAC Circuit Breakers
- 1. Swgr. 236Y (Compt.
160(c) 50/3 VP/Pri. Cont.
400A)
Vent Supply Fan 2B
- 2. Swgr. 235Y (Comp.
160(c) 50/3 VP/Pri. Cont.
20 )
Vent Supply Fan 2A C.
480 VAC (Molde Case) Circuit Breakers
- 1. Type K-M at # NZ MH6-160/ZM6C a) M 236Y-2 174 N.A.
RR/MOV 2833-F0678 Compt. C4)
RR/MOV 2833-F023B (Compt. A3) c) MCC 234X-1 10 N.A.
NB/MOV1 2821-F001 (Compt. B3) d) MCC 234X-1 10 N.A.
NB/MOV 2B21-F002 (Compt. B4) i i
i SALLE - UNIT 2 3/4 8-24
,,,,,,-.------n.
n..
n
\\
Ita SE12 T MGV t56)
TABLE 3.8.3.2-1 (Continued)
Y TRIP
RESPONSE
SYSTEM /
DEVICE NUMBER SETPOINT TIME COMPONENT AND LOCATION (Amperes)
(Milliseconds / Cycles) POWERED 480 VAC (Molded Case) Circuit Breakers (Continued) e)
RH/MOV 2E12-F009 (Compt. DS)
/
f)
RI/
2E51-F063 (Compt. E4) g)
R/MOV 2B33-F023A (Compt. A1) h)
RR/MOV 2833-F067A (Compt. A4) i)
MCC 233-1 50 N.A.
RT/MOV 2G33-F102 (Compt. C2) j)
MCC'233-1 10 N.
NB/MOV 2821-F005 (Compt. E1) k)
.A.
NB/MOV 2B21-F016 (Compt. B1) 1)
RH/MOV 2E12-F099A (Compt. EI) m)
RT/MOV 2G33-F001 (Compt. E4) n)
N.A.
WR/MOV 2WR180 l
(Compt. A5) o)
RH/MOV 2E12-F099B (Compt. 06) p)
N.A.
VP/MOV 2VP113B (Compt. H5) q)
VP/MOV 2VP114A (Compt. H4) r)
VP/MOV 2VP113A (Compt. H3) s)
VP/MOV 2VP1148 (Compt. H t)
MCC 236Y 2 7
N.A.
WR/MOV 2WR179 (Compt A4) u)
MCC SY-1 10.5 N.A.
RT/MOV 2G33-F101 (C pt. D3) v)
C 235Y-1 10.5 N.A.
RT/MOV 2G33-F100 Compt. 04) w)
MCC 233-1 10.5 N.A.
RT/MOV 2G33-F106 1
)
RI/MOV 2E51-F076 (Compt. C3)
(Compt. DS) y)
MCC 235X-1(Emerg) 6.5 N.A.
RH/MOV 2E12-F009 (Compt. C2)
I') Breaker time only.
Relay time not included.
(b) Pickup value for voltage restraint time overcurrent relay.
(c) Pickup current level. Actual trip point shall be determined using the response time from the characteristic curve.
LA SALLE - UNIT 2 3/4 8-25
TABLE 3.8.302-1 PRIMARY CONTAINMENT PENETRATION CONDUCTOR
,OVERCURRENT PROTECTIVE DEVICES SYSTEM /
DEVICE NUMBER COMPONENT AND LOCATION
, POWERED A.
6.9 kV Circuit Breakers 1.
Swgr. 251 (Bkr. 3A)
RR Pump 2A Primary-fast speed 2.
Swgr. 252 (Bkr. 38)
RR' Pump 2B Primary-fast speed 3.
Swgr. 251-1 (Bkr. 2A)
RR Pump 2A, t
low speed Primary 4.
Swgr. 252-1 (Bkr. 2B)
RR Pump 2B, low speed Primary 5.
Swgr. 251-1 (Bkr. 4A)
RR Pump 2A fast speed Backup 6.
Swgr. 252-1 (Bkr. 4B)
RR Pump 2B, fast speed Backup B.
4.1.6kv Circuit Breakers 1.
Swgr. 241Y (Bkr. lA)
RR Pump 2A low speed Backup 2.
Swgr. 242Y (Bkr. IB)
RR Pump 2B, low speed Backup C.
480 VAC Circuit Breakers 1.
Swgr. 236Y (Compt.
VP/Pri. Cont.
400A)
Vent Supply Fan 2B 2.
Swgr. 235Y (Compt.
VP/Pri. Cont.
202C)
Vent Supply Fan 2A 3/4 8-24 LaSalle-Unit 2 Document 2171r/0027r
SYSTEM /
COMPONENT DEVICE NUMBER AND LOCATION
. POWERED 480 VAC (Molded Case) Circuit Breakers D.
1.
Type K-M Cat # NZ MH6-160/ZM6C (a) a) MCC 236Y-2 RR/MOV 2B33-F067B (Compt. C4) b) MCC 236Y-2 RR/MOV 2333-F023B (Compt. A3) c) MCC 234X-1 NB/MOV1 2B21-F001 (Compt. B3) d) MCC 234X-I NB/MOV 2B21-F002 (Compt. B4) e) MCC 236Y-1 (Normal)
RH/MOV 2E12-F009 (Compt. DS) f) MCC 236Y-2 RI/MOV 2E51-F063 (Compt. E4) g) MCC 235Y-1 RR/MOV 2B33-F023A (Compt. A1)
RR/MOV 2B33-F067A h) MCC 235Y-1 )
(Compt. A4)
j) MCC-233-1 NB/MOV 2B21-F005 (Compt. EL)
NB/MOV 2B21-Ful6 k) MCC-236Y-2 (Compt. Bl)
\\
- 1) MCC 236Y-2 RH/MOV 2El2-F099A g
(Compt. EL)
~
m) MCC 236Y-1 RT/MOV 2G33-F001 (Compt. E4) n) MCC 236Y-2 WR/MOV 2WR180 (Compt. A5)
\\
c) MCC 236Y-2 RH/MOV 2E12-F099B (Compt. D6) p) MCC 236Y-1s VP/MOV 2VPil3B (Compt. H5) q) MCC 236Y-1 VP/MOV 2VPil4A s
(Compt. H4) 3/4 8-23 1.aSalle-tinit 2 Document 2171r/0027r
~
SYSTEM /
DEVICE NUMBER CCMPONENT AND LOCATION POWERED r) MCC 236Y-1 VP/MOV 2VP113A (Compt. H3) s) MCC 236Y-1 VP/MOV 2VPil4B (Compt. H6) t) MCC 236Y-2 VR/MOV 2VR179 (Compt. A4) u) MCC 235Y-1 RT/MOV 2G33-F101 (Compt. D3) v) MCC 235Y-1 RT/MOV 2G33-F100 (Compt. D4) w) MCC 233-1 RT/MOV 2G33-F106 (Compt. C3) x) MCC 236Y-2 RI/MOV 2E51-F076 (Compt. DS) y) MCC 235X-1 (Emerg)
RH/MOV 2E12-FOC9 (Compt. C2) 2.
Type K-M Cat #NZ M12V-630/ZM12AV a) MCC 235X-2 (Compt. AA4)
VP/Pri. Cont.
Vent Supply Fan 2B Backup b) MCC 236X-2 (Compt. AA4)
VP/Pri. Cont.
Vent Supply Fan 2A Backup (a) Backup breakers are located in the back of the respective MCC.
3/4 8-25a LaSalle-Unit 2 Document 2171r/0027r l
e' ATTACHMENT C SIGNIFICANT HAZARDS CONSIDERED Commonwealth Edison has evaluated the proposed Technical Specification Amendment and determined that it does not represent a significant hazards consideration.
Based on the criteria for defining a significant hazards consideration established in 10 CFR 50.92, operation of LaSalle County Station Units 1 and 2 and in accordance with the proposed amendment will not:
(1) Involve a significant increase in the probability or consequences of an accident previously evaluated because the amendment provides additional administrative controls to assure proper protection of the electrical penetrations. These reflect the additional protection which prevents any adverse effects on primary Containment Integrity. Additionally, the change to make the actions performed in the event of an inoperable breaker the same for all voltages reduced the possibility of operator error.
(2) Create the possibility of a new or difference kind of accident from any accident previously evaluated because this amendment indicates the improved physical protection offered in the applicable systems.
In addition, this change incorporates revisions to update the LaSalle Technical Specifications to the GE-STS.
(3) Involve a significant reduction in the margin of safety because the affect of the back up protection in fact increases the margin of safety by assuring overcurrent conditions will not jeopardize the operability of the penetration.
In addition, the removal of the " TRIP SETPOINT" and
" RESPONSE TIME" columns reduce the possibility of error during testing from utilization of out of date information.
Based on the preceding discussion, it is concluded that the proposed system change clearly falls within all acceptable criteria with respect to the system of components, the consequences of previously I
evaluated accidents will not be increased and the margin of safety will not be decreased.
Therefore, based on the guidance provided in the Federal Register and the criteria established in 10 CFR 50.92 (c), the proposed change does not constitute a significant hazards consideration.
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