ML20058E860
| ML20058E860 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Byron  |
| Issue date: | 04/30/1990 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20058E782 | List: |
| References | |
| 1BOA-PRI-10, NUDOCS 9312070201 | |
| Download: ML20058E860 (61) | |
Text
_.
REV. 55 LOSS OF RH COOLING UNIT 1-1 BOA PRI-10 i
i A.
PURPOSE This procedure provides actions required to restore RH System cooling in the event RH System cooling is lost during Modes 4, 5, or 6.
l B.
SYMPTOMS OR ENTRY CONDITIONS i
- 1. The following annunciators may cause, entry into this procedure:
l o
RH PUMP TRIP - alarm o
RH PUMP 1A(B) DSCH PRESS HIGH - alarm o
RH PUMP 1A(B) DSCH PRESS LOW - alarm o
RH PUMP 1A(B) CC FLOW LOW - alarm o
RH EX CC WTR FLOW HIGH LOW - alarm o
RCS SYSTEM COLD PRESS HIGH - alarm o
RCS PRESS HIGH AT LOW TEMP - alarm o
CC PUMP TRIP - alarm o
CC SURGE TANK LEVEL HIGH LOW - alarm o
CC PUMF DSCH PRESS LOW - alarm i
o REACTOR VESSEL LEVEL LOW - alarm l
~
c
- 2. The following symptoms may cause entry into this-procedure:
I o
Oscillating RH pump amps.
o Fluctuating RH Pump dsch pressure.
o Excessive RH Pump noise or vibration.
l Fluctuating Letdown Flow when on RH Letdown.
o o Decreasing Reactor vessel level I
o Increasing RCS temperature.
o Increasing RH system temperature.
- 3. This procedure may be entered from:
l IBFR-C.3, RESPONSE TO SATURATED CORE COOLING, Step 1.
-l o
Inability to reduce RCS temperature while shutdown.
]
o Loss of RH System _while operating in Modes 4, 5, or 6.
o APPROVED APR 031990 B.o.s.n.
Page 1 of 61 (0166F/0018E/012090) 9312070201 931130 TI Lh(
PDR ADOCK 05000010 i
F PDR
.~.
}
REVo 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 i
4 l
l STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAiNED i
l i
i i
I l
CAUTION l
j Changes in RCS pressure could result in inaccuracies in RCS I
level readings.
l
^
I CAUTION i
Any dilution of the RCS should be j
j stopped until RHR Flow has been J
j re-established.
i 1
)
I I
NOTE With this procedure in effect, notify the Station Director who will
- evaluate for GSEP conditions per BZP 200-Al, BTRON EMERGENCY ACTION LEVELS.
)
1 CHECK RH SYSTEM OPERATION:
- a. Verify 1A or 1B RH
- a. GO TO Step 2.
pump run light - LII l
Step continued on next page APPROVED APR 0 31990 B.O.S.R.
Page 2 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT.1 1 BOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED i
Step 1 (continued)
- b. Verify operating RH pump
- b. Attempt to stabilize RH parameters - STABLE:
system operation as RH letdown flow Reduce RH pump flow.
RH pump amps Increase RCS level by increasing charging flow RH disch pressure and/or reducing letdown flow.
i RH disch flow IE RH pump parameters do Reactor Vessel level not stabilize, i
l THEN trip the affected RH l
RH pump noise / vibration pump and GO TO Step 3.
- c. Verify RCS temperature -
- c. Verify sufficient flow STABLE OR DECREASING through RH HI.
t
- 1) Verify proper operation of RH flow control valves:
o 1RH606/618 o
1RH607/619
II CC system is adversely affecting RH HI operation, THEN GO TO 1 BOA PRI-6, COMPONENT COOLING MALFUNCTION,while continuing with this i
l procedure at Step 2.
- d. RETURN TO procedure and step in effect AFFROVED i
1 APR 0 31990 B.O.S.R.
{
Page 3 of 61 (0166E/0018E/012090) i I
REY. 55 LOSS OF RH COOLING UNIT 1 1 BOA-PRI-10 1
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED -
2 VERIFY POWER TO 4KV ESF BUSES:
r
- a. ESF Buses - BOTH ENERGIZED:
- a. Restore power to the affected ESF bus.per SE Bus 141 bus alive light - LII direction, while continuing Bus 142 bus alive light - LII with this procedure.
l 3
CHECK RH SYSTEM STATUS, a
- a. RH hot leg suction valves -
- a. Manually open RH suction I
valves as required:
OPEN:
o 1RH8701A and B o
1RH8701A and B 3
o 1RH8702A and B o
1RH8702A and B
- b. RH System - INTACT:
- b. Isolate any leak.
At SE discretion, check for
.l l
1eaks i
4 CHECK RCS CONDITIONS:
l l
- a. RCS Wide Range Pressure -
- a. Decrease RCS pressure to LESS THAN 360 PSIG:
less than 360 PSIG:
l 1PI-403 o
Solid Plant - Throttle j
1PI-405 letdown and charging as i
necessary to reduce RCS pressure.
o Pzr Bubble - Manually initiate pressurizer l
spray to reduce RCS pressure:
l' l
o 1RY455B o
1RY455C o
1CV8145 I
IE either pressure l
instrument has failed, l
IEH GO TO ATTACHMENT B (page 31),
j j
Step continued on next page l
t APPROVED
\\
Page 4 of 61 APR 0 31990 (0166E/0018E/012090)
B.O.S.R.
l L
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 STEP ACTION / EXPECTED RESPON5E RESFONSE NOT OBT AiNED 1
l Step 4 (continued)
- b. RCS level:
- b. GO TO Attachment-A
)
(Page 12).
l l
4 o RVLIS - AT LEAST 377.
Plenum Region
-OR-o ILI-RYO46, RV HL LEVEL -
GREATER THAN j
OR EOUAL TO 393'6"
-OR-o lLI-RYO49 RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6"
-OR-o Tygon level Indication -
GREATER THAN OR EOUAL TO 393'6" 5
CHECK RH SYSTEM STATUS:
- a. RH hot leg suction valves -
- a. Manually open RH suction QPIJi:
valves as required:
o 1RH8701A and B o
1RH8701A and B i
o 1RH8702A and B o
1RH8702A and B
- b. RH System - INTACT:
- b. Isolate any leak.
At SE discretion, check for i
leaks AFPROVED (0166E/0018E/012090)
R.O.S.R.
I
~
1B0A REY. 55 LOSS OF RH COOLING UNIT 1 PRI--10 STEP ACTION / EXPECTED RES?ON5E RESPONSE NOT OS /AiNED CAUTION Starting redundant RH train prior to determining the cause of the failure of the first train may cause a failure of the redundant RH train.
6 ESIAE_ISH 3CS CQQ_ING WITH IE redundant RH train is 1101 REDUNJANT RH TRAIV:
available, THEN attempt to restart the RH
- a. Establish RCS cooling per train previously in service.
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING IE neither RH train can be
- restored, l
THEN continue attempts to restore either RH train, and GO TO Step 8.
l 7
CHECK RCS CONDITIONS:
- a. Verify RCS temperature -
- a. GO TO Step 8.
STABLE OR DECREASING
- b. Recover RCS level per
- b. Verify RCS level -
ATTACHMENT A (page 12).
l GREATER THAN 393'6" i
l
- c. RETURN To procedure and step in effect 8
CONTINUE ATTEMPTS TO RESTORE RH COOLING:
- a. At SE discretion, evacuate all personnel from Unit 1 containment e
Step continued on next page APPROVED APR 0 31990 B.O.S.R.
1 Page 6 of 61 1
(0166E/0018E/012090)
i REV. 55 LOSS OF RH COOLING UNIT 1 IBOA j
PRI-10 i
I
\\
l l
RESFONSE NOT OBTAiNED l
STEP ACTION / EXPECTED RESPON5E Step 8 (continued) i l
- b. Continue with this procedure l
at step 9, II at anytime an RH train becomes j
available, IHEN:
I
- 1) Immediately align the RH train for RCS cooling per BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 2) RETURN TO Step 7 of this procedure I
9 SEL EC' AoPLICABLE ATTAC4 MENT TO ES"ABLISH RCS C00LIN3.
- a. Refer to Table A (page 8) to I
determine applicable l
cooling method:.
j o
Bleed and Feed Using Excess j
Letdown through Loop Drains and Normal Charging -
I ATTACHMENT C (page 32) o Stee2ning Intact /Non-isolated
)
{
SGs - ATTACHMENT D (page 37) i o Bleed and Feed Using Pzr PORVs i
and Normal Charging -
l ATTACHMEl(I_Z (page 44)
Refuel Cavity to Fuel Pool Cooling'-
o I
ATTACHMENT F (page 49)
SI Pump Hot Leg Injection -
o I
ATTACHMENT G (page 53)
AFPROVED o Accumulator Injection -
l l
ATTACHMENT H (page 57)
APR 0 31990 i
o Inventory Addition via RWST -
I ATTACHMENT I (page 60)
B.O.S.R.
-END-Page 7 of 61 (0166E/0018E/012090)
REY. 55 LOSS OF RH COOLING. UNIT 1 1 BOA l
PRI-10 I
I i
)
TABLE A-(nare 1 of 1),
DETERMINATION OF EFFECTIVE RCS COOLING METHODS MODE MODE MODE COOLING 4
5 6
METHOD NORMAL w/ hot RCS ii REFUEL HEAD w/ hot RCS is, Configu side adver9e4 FLOODED OFF side adverse 4 l
ration vent 3 vent 3 l
ATTACHMENT C
yes yes yes yes
.yes yes yes
.yes-i (care 32)
ATTACHMENT D
yes yes N/A yes
-N/A N/A
'N/A-yes (Dare 37) l ATTECHMENT l
E yes yes N/A yes N/A N/A N/A yes.-
(
.l (care 44) 2 ATTACHMENT l
F N/A N/A N/A N/A yes.
yes N/A N/A l
(vare 49)
ATTACHMENT 1
1
.l G
yes yes yes yes yes yes yes yes i
{
_1pagfL53) i ATTACHMENT H
yes yes yes yes yes yes yes yes (care 57)
ATTACHMENT I
N/A yes yes yes yes yes--
yes yes j
(yare 60) 1.
SI pump hot leg injection must be initiated as-the primary means of RCS cooling and inventory control.
Other methods may be used in conjunction with ATTACMENT G but not in place.of it.
May be used as a cooling method if the boot seal-is inflated and 2.
refueling cavity is being filled.
3.
Refer to FIGURE 1 BOA PRI-10-2 (page 10) for.an acceptable hot side vent path.
4.
The RCS is ADVERSE if-ALL of the following exist:
a.
The RCS is RQI intact (any openings) M -
b.
An acceptable RCS hot side vent path'is HQI established m i
ALL RCS loops are blocked (loop stops closed or hot leg c.
nozzle dams are installed)
APPROVED APR 031990 4
)
Page 8 of 61 (0166E/0018E/012090)
- 3, o, g, g,
]
[
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 t
0 0
l TRCS = 100 F.
TRCS = 140 F 20.0 18.0
/
16 0
/
$5
/
r
'O I4 0 e
c8
- b. = 12.0
/
gm
/
=
10.0 g-o
.x.
oj 8.0
-~,
,g
)
i~ $ 6.0 4.0 40.0 60.0 80.0 100.0 120.0 140.0 160.0 180.0
~200.0 Time Af ter Shutdown ihrs)
FIGURE 1 BOA PRI'10-1 APPROVED Time to Reach Saturation Following a APR 0 31990 Loss of RHR at Mid-Loop B.O.S.R.
Page 9 of 61 (0)66E/0018E/012090)
1 P
1 BOA
[
REV. 55 LOSS OF RH COOLING UNIT 1 PRI-10 l
i l
4 i'
0
--_TRCS = 140*F
-TRCS = 100 F l
35.0 2 SAFETIES e.
188 f
NOT ACCEPTABLE
/
25.0 g
/
M k
1 3 SAFETIES /'/
20*0 M
18.3 15.0 g
s'
^\\
g ACCEPTABLE
p nz 10'0 Y
,$- -?? WP- ---- ---
- s. s 5.0 f
0.0 0.0 100.0 200.0 300.0 400.0 500.0 600.0 700.0- 800.0 900.0 TIME AFTER SHUTD0lm 09S).
1 I
q u
FIGURE 1 BOA PRI 10-2 APPROVED Vent Path Required to Prevent APR 0 51990-RCS Pressurization B.O.S.R.
Page 10.of 61 (0166E/0018E/010990)
4 REV. 55 LOSS-0F RH COOLING UNIT 1 1 BOA PRI-10 i
(
i l
~
... r-.ee
...r~,
.i
~
-..e.=
=
500
\\
\\
f X
X X
400 1
\\
^
s E
\\
O_
s s
a 300
(
i v
E uj t
F-t C
i Of x
200 N
3 x
O N
J s
tL x
100-m, m
-s
,m i
g-18 100 1000 10000 i
TIME (Minutes)
FIGURE-1 BOA PRI 10-3 APPROVED Required' Charging ~ Flow-M 03 m_
vs Time From Shutdown B.O.S.R.
Page 11 of 61 (0166E/0018E/010990)
1 i
1 BOA I
REV. 55 LOSS OF RH COOLING UNIT 1 PRI-10 STEP ACTION / EXPECTED RES?DN5E RESPONSE NOT OSTA4NED ATTACEMEHT A (Page 1 of 191 RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 1
- H.lCK IP RH PUMPS SHOULD 3E STOP )ED:
I
- a. Go TO Step 2.
- a. RH pump - ANY RUNNING
- b. Stop the RH Pumps and
- b. RCS level:
GO TO Step 2.
o RVLIS plenum region -
GREATER THAN OR EOUAL TO 377.
f
-OR-i o
ILI-RYO46, RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6" i
-OR-1 o
ILI-RYO49, RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6"
-OR-Tygon level indication -
o GREATER THAN OR EOUAL to 393'6"
- c. RH Flow - LESS THAN 3000 gpm
- c. Reduce RH Flow to less than or equal to 3000 gpm.
- d. RH pumps - NOT CAVITATING
- d. II the RH Pumps continue to cavitate with adequate RCS
- level, THEH stop the RH Pumps and GO TO Step 2.
AFFROVED
- e. RETURN TO procedure and step in effect APR 0 31990 B.O.S.R.
Page 12 of 61 (0166E/0018E/012090) s-ww-
i REV. 55 LOSS OF RH COOLING UNIT 1 g10 i
STEP ACTION / EXPECTED RES?ON5E RE5FONSE NOT OBTAiNED ATTACHMENT A (Pare 2 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i
2 ISOLATE LETDOWN AND KNOWN DRAlb PATHS:
t r
- a. Verify /Close letdown orifice isol valves:
9 1CV8149A 1CV8149B 1CV8149C I
- b. Verify /Close RH to CV Ltdwn j
Flow Cont Viv-ICV 128
- c. Verify /Close RC Loop Drn Vlvs:
1RC8037A 1RC8037B i
1RC8037C 1RC8037D DETERMINE TIME TO RCS BOILING:
3
- a. Time to core saturation -
- a. Go To Step 4.
Observe LESS THAN 5 MINUTES per CAUTION prior to Step 4.
FIGURE 1 BOA PRI 10-1, l
(page 9) i
- b. Go To step 13 i
f APPROVED APR 0 31990 B.O.S.R.
Page 13 of 61 (0166E/0018E/012090) l
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A l
PRI-10 STEP ACTION / EXPECTED RESPON5E RE5FONSE NOT OBTAiNED l
ATTACHMENT A (Page 3 of 19)
)
RH RECOVERY WHILE AT REDUCED
)
INVENTORY CONDITIONS i
CAUTION Personnel working in containment should be warned prior to refilling i
the RCS to avoid inadvertent l
contamination of personnel working near RCS openings.
t i
4 CHECK RCS LEVEL:
I
- a. RCS level:
- a. Go TO Step 9.
RVLIS plenum region - LESS o
THAN 377.
l
-OR-l o
1LI-RYO46, RV HL LEVEL -
LESS THAN 393'6" 1
-OR-o 1LI-RYO49, RV HL LEVEL -
l less than 393'6"
\\
J
-OR-o Tygon level indication -
LESS THAN 393'6" Step continued on next page APPROVED APR 0 31990 B.O.S.R.
j Page 14 of 61 (0166E/0018E/012090)
i REVo 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 l
STEP ACTION / EXPECTED RE5?GN5E RE5FONSE NOT OST AiUED 6
ATTACHMENT A (Page 4 of 19) 1 RH RECOVERY WHILE AT REDUCED liflENTORY CONDITIONS l
Step 4 (continued) l
- b. RCS level:
- b. GO TO Step 8.
o RVLIS plenum region - LESS l
THAN 277.
-OR-l o
1LI-RYO46, RV HL LEVEL -
LESS THAN 392' l
-OR-o ILI-RYO49, RV HL LEVEL -
I l
LESS THAN 392'
-OR '
o Tygon level indication - LESE THAN 392' 5
CHECK RCS HOT SIDE VENT PATH RESISTANCE:
- a. RCS HOT SIDE Vent Path
resistance - ACCEPTABLE leg opening, per FIGURE 1 BOA PRI 10-2 THEN, refill the RCS per (page 10) the following:
- 1) Align at least one SI Pp for Hot Leg injection.
- 2) Start the aligned SI Pp.
i
- 3) WHEli RCS level is greater than 393'6",
ArrROVED THEN stop the SI Pp.
j APR 0 31990
- 4) Go Tc Step 9.
B.O.S.R.
Page 15 of 61 (0166E/0018E/012090)
I REY. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 i
STEP ACTION / EXPECTED RES?ONSE RESPONSE NOT OSTAiNED j
l ATTACHMENT A (Page 5 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 6
ALIG J CE 4T. CHARGING PP IE a CENT CHARGING Pp is not i
TO R EFIL _ RCS:
available, IliEH makeup to the RCS using
- a. Open RWST to CENT CHG one of the following:
pump suction valves:
o Attachment I, RWST GRAVITY 1CV112D FILL (page 60)
I i
1CV112E
-OR-i
- b. Close VCT to CENT CHG pump suction valves:
o Attachment G, SI PUMP HOT LEG INJECTION (page 53) l 1CV112B 1CV112C
-OR-
- c. Increase charging flow o
Attachment H. ACCUMULATOR l
to maximum by throttling INJECTION (page 57) l open 1CV121 and-lCV182
- d. RCS level - GREATER THAN
- d. Maintain maximum charging 393'6" flow until RCS level is greater than 393'6".
7 GO TO STEP 9 i
APPROVED APR 0 31990 B.O.S.R.
l Page 16 of 61 l
(0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 STEP ACTION / EXPECTED RES?ONSE RESPONSE NOT OBTAiNED AIIACEMENT A (Page 6 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS 8
REFILL RCS VIA CENT l
CHARGING PP'
- a. One Cent Chg Pp -
- a. Start a Cent Chg Pp I
IN SERVICE per BOP CV-la, STARTUP OF THE CV SYSTEM.
IE a Cent Chg Pp can HQI be started.
l IHER makeup to the RCS l
using one of the following:
l o
Attachment I, RWST GRAVITY FILL (page 60) l l
-OR-o Attachment G, SI PUMP HOT LEG INJECTION t
(page 53) 1
-OR-i o
Attachment H.
ACCUMULATOR INJECTION (page 57) g
- b. Increase RCS level to -
GREATER THAN 393'6" by throttling open 1CV121 and ICV 182
- c. Throttle 1CV121 to maintain desired RCS level 9
IDENTIFY AND ISOLATE ANY RCS LEAKA3E APPROVED APR 0 31990 B.O.S.R.
Page 17 of 61 (0166E/0018E/012090)
l REVo 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 I
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED i
i ATTACHMENT A (Page 7 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS NOTE The time to boiling in the RCS should*
i be taken into consideration when j
determining how much time should be l
spent venting the RH system prior to taking additional actions starting
- at Step 10.
NOTE If adequate time to completely vent the RH system is not available, air can be swept out of the RH lines by filling the RCS to 394'4" and running an RH pump at a flowrate l
2 greater than 3000
- gpm.
10 VEN" AFFECTE] RH IE the affected RH train can TRALN USING :1WST:
HQI be vented using the RWST THEN:
- a. Maintain RCS level while venting RH System
- 1. Close RH Pump 1A/B Suction i
from RWST Isol Viv:
o ISI8812A o
ISI8812B i
i Step continued on next page APPROVED APR 0 31990 s.o.S.R.
Page 18 of 61 (0166E/0018E/012090)
j REV. 55 LOSS OF RH COOLING UNIT 1 1B0A i
PRI-10 h
I l
STEP ACTION / EXPECTED RES?ONSE RE5FONSE NOT OBTAiNED i
i ATTACHMENT A (Page 8 of 19) i RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS i
)
i l
I Step 10 (continued)
- b. Align the affected RH train
- 2. Open RH Hot Leg' i
for venting:
Suction Viv:
- 1) RH Hot Leg Suction Valves -
o 1RH8701A and B j
CLOSED:
o 1RH8702A and B q
o 1RH8701A and B
- 3. Open RH to Cold Legs o
1RH8702A and B 1A&D/lB&C:
- 2) RH to Cold Legs lA&D/lB&C -
o ISI8809A CLOSED:
o ISI8809B 3
1 o
1SI8809A
- 4. Close RH HX 1A/B Disch 7
o 1SI8809B Xtie Viv:
- 3) RH Pump 1A/B Suction o
1RH8716A from FWST Isol Valve -
o 1RH8716B l
OPEN:
- 5. Open lA/B RH HI FCV:
o 1SI8812A o
1SI8812B o
1RH606 o
1RH607
- c. Vent RH train suction piping l
using high point vent valves:
- 6. Close 1A/B RH Ex Bypass j
FCV:
i o
1RH028A (374'
+6' U12 RIB 1) o 1RH028B (374'
+6' X12 RIB 1) o 1RH618 o
1RH619 4
1 Step continued on next page ArrROVED APR 0 31990 B.O.S.R.
Page 19 of 61 j
.(0166E/0018E/012090) j
i i
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 i
i STEP ACTION / EXPECTED RES?ONSE RESPONSE NOT OBTAiNED ATTACHMENT A (Page 9 of 19)
RH RECOVERY WHILE AT REDUCED 1
INVENTORY CONDITIONS Step 10 (continued)
- d. Vent RH train discharge piping
- 7. Vent RH train suction using high point vent valves:
piping using high point vent valves:
o 1RH026A (357'+12' S15 AB) o 1RH028A (374'+6' U12 RXB1) i o
1RH026B (357'+12' V15 AB) o 1RH028B (374'+6' X12' RIB 1) i e-.
Re-align the affected RH train:
- 8. Vent RH train discharge piping using high point i
- 1) RH Pump 1A/B Suction from vent valves:
l RWST Isol Valve - CLOSED:
1 o
1RH026A o
ISI8812A (357'+12' S15 AB) o 1SI8812B o
1RH026B (357'+12' V15 AB)
)
- 2) RH Hot Leg Suction Valves -
CLOSED:
- 9. Start the affected pump i
at'a high flow rate and o
1RH8701A and B monitor reactor vessel i
o 1RH8702A and B level.
1 When RH pump amps and disch i
- 3) RH to Cold Leg 1A&D/1B&C -
pressure are stable, reduce OPEN:
RH flow.
o 1SI8809A
- 10. Shutdown the RH Pump and j
o ISI8809B align per SE direction.
1 ll.G0 TO Step 11.
APPROVED APR 0 31990 B.O.S.R.
l l
i Page 20 of 61-(0166E/0018E/012090)
]
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A i
PRI-10 i
i STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT A (Page 10 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS l
CAUTION I
Starting an RH pump may result in I
an RCS level decrease due to shrink or void collapse.
11 RESTORE RH FLOW:
- a. RCS level - GREATER THAN 393'6"
- a. Continue with this procedure at step 12, l
lEEli RCS level is greater than 393'6",
THEN perform Steps lib through Ilj.
i
- b. Align the RH system:
- 1) RH Hot Leg Suction valves--
- 1) Align valves as necessary
)
OPEN:
per Attachment B, i
Step la, (page 31) while o
1RH8701A and B continuing with this o
1RH8702A and B ATTACHMElff.
1
- 2) RH Pump Suct From RWST
- 2) Locally align valves as
{
Isol Viv - CLOSED:
necessary:
o 1SI8812A o
1 SIB 812A o
1SI8812B (343' +7' V13 RXB1) o 1SI8812B (343' +7' X13 RXB1) l i
Step continued on next page AFFROVED 1
l APR 0 31990 B. O. S. R.
l Page 21 of 61 (0166E/0018E/012090) 1
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT A (Page 11 of 19)
I RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS Step llb (continued)
- 3) RH to Cold Leg 1A&D/lB&C
- 3) Locally align valves as
- OPEN:
necessary:
o ISI8809A o
1SI8809A
~
o 1SI8809B (374' +15' V12 RIB 1)-
o ISI8809B (374' + 14' X12 RXB1) l
- c. Verify CC Flow to
RH HI.
o A RH HX i
o B RH HX I
- d. Verify /Close RH Dsch
{
Flow path flow control vlvs:
RH HX Flow control viv:
i o
1RH606 l
o 1RH607 RH HX Bypass Flow control viv:
o 1RH618 o
1RH619 J
l
- e. Start one RH pump:
o A RH pump o
B RH pump
- f. Maintain RCS level -
GREATER THAN 393'6" Step continued on next page APR 031990 B.O.S.R.
Page 22 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 STEP ACTION / EXPECTED RES?ON5E RESPONSE NOT OBTAiNED ATTACHMENT A (Page 12 of 19) i RH RECOVERY WHILE AT REDUCED
~
INVENTORY CONDITIONS Step 11 (continued)
- g. Gradually increase RH flow to desired flowrate l
- h. Verify RH Flow - RESTORED
- h. Start trending core exit TC's, and GO TO Step 12.
Observe NOTE prior to Step 12.
- i. Verify RCS temperature -
- i. Increase cooling flow thru LESS THAN 140*F the inservice RH HX l
and continue cooling the l
RCS.
RETURN TO Step lig.
- j. RETURN TO procedure and step in effect i
APPROVED APR 0 31990
- s. o. S. R. -
Page 23 of 61 (0166E/0018E/012090)
j i
REVc 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 4
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT A (Page 13 of 19)
RH RECOVERY WHILE AT REDUCED INVENTORY CONDITIONS NOTE To maintain RCS pressure low enough j
for gravity Feed, at least two SG's must be refilled and utilized.
1 t
12 DETERML VE I: A SECONDARY i EA' S; i UMP (S):
j o U-l RCDT Pump to Recycle HUT's Isol Viv - QEEH:
i 1AB8551 (364' + 26' V13 RXB1)
J
-OR-o U-1 RCDT pump to RWST Isol Viv - QEEH:
1RE9171 (374' + 10' V13 RXB1) l 1SI8936 (364' +
3' V14 RXB1) l 5
ESTABLISH DRAIN PATH TO RCDT:
- a. Excess Ltdwn Ex's Common Outlet Edr Isol - CLOSED:
1CV123
- b. RC Loop Drn Viv - OPEN:
1RC8037A 1RC8037B 1RC8037C 1RC8037D
THROTTLED:
1CV8350 (377' + 3' R012 RX1) 6 VERIFY RCDT PUMPS IN AUTO:
^
1A RCDT pump IB RCDT pump APR 0 3 690 B.O.S.R.
Page 34 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 STEP ACTION / EXPECTED RESPON5E RESPONSE NOT OSTAiNED ATTACHMENT C (Page 4 of 5)
BLEED AND FEED USING EXCESS LETDOWN THRU LOOP DRAINS & NORMAL CHARGING 7
CHECK VCT MAKEUP CONTROL SYSTEM:
l
- a. Mode selector switch - AUTOMATIC
- a. Verify RWST level greater than 6% and perform the following:
- 1) Open RWST to CENT CHG Pumps Suction valves:
j 1CV112D 1CV112E
- 2) Close VCT Outlet Isol valves:
1CV112B 1CV112C
- 3) Go TO Step 8.
I
- b. Set boric acid and makeup water flow controller potentiometers - GREATER THAN RCS BORON CONCENTRATION
- c. Control switch - START 8
VERIFY CHARGING SYSTEM STATUS:
- a. CENT CHG Pumps Miniflow Isol Valves - QEEH:
1CV8110 1CV8111 1CV8114 1CV8116
- b. Charging Line Cnmt APPROVED Isol Valves - OPEN:
APR 0 31990 1CV8105 ICV 8106 B.O.S.R.
Step continued on next page Page 35 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA l
PRI-10 STEP ACTION / EXPECTED RESPONSE l
RE5FONSE NOT OST AiNED ATTACHMENT C (Page 5 of 5) i BLEED AND FEED USING EXCESS LETDOWN THRU LOOP DRAINS & NORMAL CHARGING Step 8 (continued)
- c. Start a CENT CHG pump
AHD isolate the drain path
- e. Equalize c.harging and letdown flow 9
EVALUATE EF ECTIVENESS OF COOLING 1ETHOD:
- a. GO TO another ATTACHMENT
- a. Check RCS temperature -
STABLE OR LECREASING for RCS cooling per TABLE A (page 8).
l 10 CON"I"4UE ATTEM)"S TO RES"0RE RH C00 ENG:
- a. II at anytime an RH train becomes available, IHEU:
- 1) Immediately align the RH Train for RCS cooling l
per BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 3) RETURN TO 1 BOA PRI-10, Step 7 AFPROVED
- END -
APR 0 31990 B. O. S. R.
Page 36 of 61 (0166E/0018E/012090)
~._ _,,
i REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 J
STEP ACTION / EXPECTED RES?ONEE RESPONSE NOT OST AiNED l
ATTACHMENT D (Eage 1 of 7)
I STEAMING INTACT /NON-ISOLATED SG(S) i 1
ESTABLISH RCS COOLING USING SG(S):
- a. GO YO another ATTACHMENT l
- a. Chech RCS temperature -
I GREATER THAN 212*F for RCS cooling per TABLE A (page 8).
l
- b. Chech Two SGs - AVAILABLE:
l
- 1) Associated loop stop
i IE no SG can be made available THEN GO To another ATTACHMENT for RCS Cooling por TABLE A (page 8).
l
- 2) Available vent path:
- 2) Establish a vent path for at least one SG, o
Associated PORV's IE no SG can be made o
Steam Dumps available, THEN GO To another ATTACHMENT for RCS cooling per TABLE A (page 8).
l
- 3) Narrow range levels -
System.
Maintain level greater than 4% narrow range.
IE AF System HQI available, IEEH GO To Step 2.
- 4) Go TO Step 2.
Step continued on next page APPROVED APR 0 31990 B.O.S.R.
Page 37 of 61 (0166E/0018E/012090)
REY. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 i
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT D (Page 2 of 7)
SIEAMING INTACT /NON-ISOLATED SG(S) l Step 1 (continued)
- c. Dump steam to condenser from
- c. Manually or locally dump i
t steam from available SG(s) available SGs:
- 1) Check condenser available
- 2) Place MS header pressure controller in MANUAL and reduce demand signal to zero
- 3) Place steam dump mode celector switch in STEAM PRESSURE mode
- 4) Manually adjust MS header pressure controller demand to initiate cooldown i
- d. Check RCS temperature:
- 1) RCS temperature - STABLE
l
PLACING THE RH SYSTEM IN APR 0 31990 SHUTDOWN COOLING
- 4) RETURN TO 1 BOA PRI-10, Step 7 B. O. S. R.
Page 38 of 61 (0166E/0018E/012090)
___=
1 1 BOA LOSS OF RH COOLING UNIT 1 REV, 55 PRI-10 STEP ACTION / EXPECTED RESFDNSE RESPONSE NOT OBTAiNED ATTACHMENT D (Pare 3 of 7)
STEAMING INTACT /NON-iSOLATru SG(S)
[
CAUTION If offsite power is lost after SI reset, then manual action may be required to restart safeguards l
equipment.
2 CHECK FEEDWATER ISOLATION:
- a. FEEDWATER ISOLATION alarm - LII
- a. Go TO Step 3.
- b. Reset SI per 1 BOA l
- b. Reset SI, if necessary:
PRI-5, CONTROL ROOM l
INACCESSIBILITY, ATTACHMENT E.
- 1) Depress both SI reset l
pushbuttons j
r
- 2) Verify SI ACTUATED PERMISSIVE LIGHT - NOT LIT
- 3) Verify AUTO SI BLOCKED permissive light - LII
- 4) Verify all automatic SI
GO TO Step 2e.
- 5) CLQSE AND TEIE OPEN
- 5) II reactor trip breakers will HDI CLOSE, reactor trip breakers THEN lift lead on TB506-5 in IPA 09J and IPA 10J to clear P-4 signal.
Step continued on next page AFFROVED Page 39 of 61 APR 0 31990 (0166E/0018E/012090)
B. O. S. R.
1B0A LOSS OF RH COOLING UNIT 1 PRI-10 REV. 55 ACTION / EXPECTED RESPONSE RESFONSE NOT OBTAiNED STEP j
ATTACHMENT D (Page 4 of 7)
STEAMING INTACT /NON-ISOLATED SG(S)
Step 2 (continued) l
- c. Reset feedwater isol
- d. Reset feedwater isol t
aux relays e
3
- e. Verify feedwater isol aux relays
)
ACTUATED lights - NOT LIT CAUTION Slowly initiate feedwater flow to steam generators to limit severe water hammer to intact SGs.
1 3
TRY TO ESTABLISH
- W
)
- a. Verify Condensate System in l
operation:
- 1) At least two CD/CB pump run lights - LII
- b. Place FW reg valves in MAIGAL J
and reduce demand to zero j
- c. Place W reg byp valves in MANUAL and reduce demand to zero AFFROVED Step continued on next page APR 0 31990 B.O.S.R.
4 Page 40 of 61 (0166E/0018E/012090)
l 1
1 BOA LOSS OF RH COOLING UNIT 1 PRI-10 REV. 55 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBT AiNED l
ATTACHMENT D (Page 5 of 7)
STEAMING INTACT /NON-ISOLATED SG(S)
I Step 3 (continued)
- d. Establish condensate flow
- d. Start the startup feedwater to the Steam Generators by I
pump:
performing the following:
- 1) The following interlocks must
- 1) Verify at least one FW Pp discharge valve is be met to start the startup open:
feedwater pump:
l o
1FWOO2A Suction isol valve - OPEN:
o 1FWOO2B o
1FWOO2C ICB133 o
1FWO58 Discharge isol valve - OPEN:
II condensate flow can HQI i
be established.
l 1FWO59 THEN GO To another Recire control valve switch Attachment for RCS cooling in OPEN position:
per TABLE A (page 8).
1FWO76 Recire isol valve - OPEN:
1FWO58 i
Lube oil pressure - GREATER THAN 8 PSIG
- e. Manually open FW tempering isolation valves:
o 1FWO35A o
1FWO35B o
1FWO35C o
1FWO35D APPROVED APR 0 51990 Step continued on next page B.O.S.R.
Page 41 of 61 (0166E/0018E/012090)
1B0A LOSS OF RH COOLING UNIT 1 PRI-10 REV. 55 ACTION / EXPECTED RESPONSE RESPONSE NOT OST AiNED 1
STEP ATTACHMENT D (Page 6 of 7)
STEAMING INTACT /NON-ISOLAN D SG(S)
Step 3 (continued)
- f. Go TO another Attachment
l o
1FWO34A o
1FWO34B o
1FWO34C o
1FWO34D l
4 CHECK SG LEVELS:
- a. Narrow range level in at
- a. IE feed flow to at least l
i two available SGs is least two available SGs -
- verified, GREATER THAN 4%
THEN maintain flow to restore narrow range level to greater than 41 II HE verified.
I THEN 60 TO another ATTACHMENT for RCS cooling per TABLE A (page 8).
l l
- b. Dump steam to condenser from
- 1) Check condenser available
- 2) Place MS header pressure controller in MANUAL and reduce demand signal to zero
- 3) Place steam dump mode selector switch in STEAM PRESSURE mode
- 4) Manually adjust MS header pressure controller demand APPROVED to initiate cooldown l
APR 0 31990 B.O.S.R.
Page 42 of 61 (0166E/0018E/012090)
1 REV. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 STEP ACTION / EXPECTED RESPON5E RESPONSE NOT OSTAiNED r
ATTACHMENT D (Page 7 of 7)
STEAMING INTACT /NON-ISOLA 1 w SG(S) 5 EVALUATE EFriCTIVENESS OF COOLING 1ETHOD:
- a. Go To another ATTACHMENT
- a. Check RCS Temperature -
for RCS cooling per l
STABLE OR DECREASING TABLE A (page 8).
l
- b. Continue heat recoval by steaming and feeding SGs TEMPTS TO RESTORE g
6
- a. II at anytime an RH train becomes available, IBM:
- 1) Immediately align the RH train for RCS cooling per i
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
Systems per SE direction
- 3) RETURN TO 1 BOA PRI-10, Step 7
-END-ArrROVED APR 0 31990 B.O.S.R.
Page 43 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED l'
ATTACHMENT E (PAGE 1 0F 5)
BLEED AND FEED USING PZR FORV(S) AND NORMAL CHARGING 1
RESET SI IF NECESSARY:
CONTROL ROOM INACCESSIBILITY,
- a. Depress both SI reset ATTACHMENT E.
pushbuttons
- b. Verify SI ACTUATED permissive light - NOT LIT
- c. Verify AUTO SI BLOCKED permissive light - LII l
2 RESET CONTAINMENT ISOLATION IF NEC ESSARY:
- a. Reset Cnmt Isol Phase A
- a. Reset per 1 BOA PRI-5,.
CONTROL ROOM INACCESSIBILITY, ATTACHMENT E.
l
- b. Reset Cnmt Isol Phase B
- b. Reset per 1 BOA PRI-5, CONTROL ROOM INACCESSIBILITY, ATTACHMENT E.
- c. Reset Cnmt Ventilation Isol
1SI8811A 1SI8811B 1CV8110 1CV8111 i
Step continued on next page APPROVED
)
APR 0 31990 B.O.S.R.
l Page 44 of 61 (0166E/0018E/012090)
I i
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT E (Page 2 of 5)
BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING Step 2 (continued)
- e. Reset SI CENT CHG pumps miniflow isol valves:
J 1CV8114 1
ICV 8116 i
- f. Check SAC run lights - ANY LIT
- f. Start one SAC per f
B0P SA-1, STARTUP AND j
OPERATION OF STATION AIR COMPRESSORS.
- g. Open instrument air Cnmt isol valves:
- 1) IIA 065
- 2) lIA066
- h. Open fire protection Cnmt isol valve:
1FF010 AFPROVED APR 0 31990 B.O.S.R.
Page 45 of 61 (0166E/0018E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1B0A i
PRI-10
)
i i
STEP ACTION / EXPECTED RESPON5E RESPONSE NOT O5TAiNED 1
I l
l ATTACHMENT E (Page 3 of 5) i BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING 3
VERIFY RCS FEED PATH:
i
- a. Check pump status:
- a. Manually start pumps.
CENT CHG pumps - AT LEAST i
ONE RUNNING
- b. Check ECCS valve alignment:
- b. II a feed path can HQI be established,
- 1) RWST to CENT CHG pumps IIDai Go To another suction valves - OPEN:
ATTACHMENT for RCS cooling l
per TABLE A (page 8).
l 1CV112D 1CV112E
- 2) VCT outlet isol valves - CLOSED:
1CV112B
~
1CV112C
- 3) Charging line Cnmt isol valves - OPEN:
l 1CV8105 i
1CV8106
- 4) CENT CHG pumps to cold legs injection isol valves - CLOSED:
1SI8801A 1SI8801B AFPROVED APR 0 31990 B.O.S.R.
1 Page 46 of 61 (0166E/0018E/012090)
REVa 55 LOSS OF RH COOLING UNIT 1 1B0A PRI-10 1
STEP ACTION / EXPECTED RESPON5E l RESFONSE NOT OSTAiNED ATTACHMENT E (Page 4 of 5)
BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING 4
ESTABLISH RCS BLEED PATH:
- a. Verify power to PZR PORV
isol valves - AVAILABLE:
available, THEN GO TO another ATTACHMENT for RCS cooling l 1RY8000A per TABLE A (page 8).
1RY8000B
- b. Open both PZR PORVs:
1RY455A 1RY456 5
MAINTAIN RCS HEAT REMOVAL:
IE minimum flow required Operate CENT CHG pumps as necessary to maintain minimum can HQI be obtained via flow required as determined from normal charging, FIGURE 1 BOA PRI-10-3 (page 11)
IHEH open CENT CHG pumps to cold leg injection isol valves:
- AND -
1SI8801A l
1SI8801B Control charging flow to i
maintain PZR level - GREATER THAN 47.
6 EVALUATE EF:ECTIVENESS OF COOLING 1ETHOD:
- a. Chech RCS temperature -
l AFPROVED APR 0 3 890 B.O.S.R.
Page 47 of 61 (0166E/0018E/012090)
i i
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 i
l STEP ACTION / EXPECTED RESPON5E RESPONSE NOT OST AiNED ATTACHMENT E (Page 5 of 5)
BLEED AND FEED USING PZR PORV(S) AND NORMAL CHARGING 7
CONTINUE ATTEMPTS TO RESTORE j
RH COO _ING:
)
- a. IE at anytime an RH train becomes available, IHEH:
- 1) Immediately align the RH i
train for RCS cooling per l
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 2) Close both PZR PORV(s)
- 3) Return CV System lineup to normal per SE direction
- 4) RETURN TO 1 BOA PRI-10, Step 7
-END-AFPROVED APR 0 51990 e.o.s.R.
Page 48 of 61 (0166E/30'8E/012090)
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 l
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT 06TAiNED 1
ATTACHMENT F (page 1 of 4)
REFUEL CAVITY TO FUEL POOL COOLING l
l NOTE This ATTACHMENT uses the Refueling
{
Water Purification pumps with suction from the refueling cavity.
The pumps discharge to the Spent Fuel Pool and the effluent is cooled
- by the FC trains.
Cooler water from
- l the Spent Fuel Pit flows back to the cavity.
1 CHECK REACTOR VESSEL HEAD REMOVED Go To another ATTACHMENT for RCS cooling per TABLE A (page 8).
l 1
l 2
CHECK SPENT FUEL POOL COOLING:
- a. At least one cooling train
- a. Establish one train of
- IN OPERATION FC cooling.
I IE a train can HQI be established THEN GO To a,nother l
ATTACHMENT for RCS cooling per TABLE A (page 8).
l 3
SID) REFUELINGWAIERPURIFICATION PUM )S:
- a. LOCALLY STOP Refueling Water i
Purification pumps:
o 0A Pump (364' S12 AB) o OB Pump (364' S12 AB)
I APPROVED APR 031990 B.o.S.R.
Page 49 of 61 (0166E/0018E/012090)
- = -.
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 STEP ACTION / EXPECTED RES?ONSE RESPONSE NOT OSTAiNED ATTACHMENT F (page 2 of 4)
REFUEL CAVITY TO FUEL POOL COOLING 4
8 FIE_ CAVITY TO FUEL POOL j
A 3G 4 1ENT:
- a. Check position of the following
- a. Open any closed component components:
II all components will liDI
- open, Fuel Pool Sluice Gate - OPEN THEN Go To another Transfer Canal Gate ATTACHMENT for RCS cooling valve 1FH001 - OPEN per TABLE A (page 8).
l Transfer Canal Flange - OPEN 5
LOCALLY ALIGN EFUEL_IiG WATER PJR.: :ICAT;.Os P J iPS 0 R REC:: RCU _A"I NG R EFUE _ CAVITY:
- a. Locally CLQEE the following valves:
j Unit-2 Refueling cavity Suction Valves - CLQSID:
2FC009 (377 + 10' R025 RI2) 2FC010 (377 + 10' U23 RIB 2)
Unit-2 RWST Suction Isol i
valve - CLOSED:
2FC8758 (364' V23 RIB 2)
- b. Unit-1 RWST Suction Isol valve - CLOSED:
1FC8758 (374' + 15' V13 RIB 1)
- c. Unit-1 Refueling Cavity Suct valves - OPEN:
1FC009 (377' + 10' R07 RII) 1FC010 (374' + 10' U12 RIB 1)
APPROVED APR 0 31990 Step continued on next page B.O.S.R.
i (0166E/0018E/012090) 1
l REY. 55 LOSS OF RH COOLING UNIT 1 1 BOA l
PRI-10 STEP ACTION / EXPECTED RESPONSE RE5FONSE NOT 06TAiNED ATTACHMENT F (vare 3 of 4)
REFUEL CAVITY TO F EL POOL COOLING j
Step 5 (continued)
- d. Cask Fill Isol viv - CLOSED:
OFC001 (401' Y16 FHB) i 1
- e. Demin Inlet Isol Vlvs - CLOSED:
l 1FC013 (401' Q17 AB) l 2FC013 (401' Q18 AB)
- f. Spent Fuel Pit Inlet valve - DEIli:
l OFC002A (364' W15 FHB)
- g. OB Refueling Water Purification Pump Suction Isol viv - OPEN:
OFC003 (364'.S11 RIB 2) 6 LQCA_LY S" ART REFUE_ING WATER PURL :ICATION OUP PS:
OA Pump (364' S12 AB)
CB Pump (364' S12 AB) 7 EVALUATE EF:ECTIVENESS OF C00LIN3 1 ETHOD:
- a. Check RCS temperature -
per TABLE A (page 8).
)
i AFPROVED APR 0 31990 B. O. S. R.
l (0166E/0018E/012090) i i
I 1
r.-
REV. 55 LOSS OF RH COOLING UNIT 1 1 BOA PRI-10 l
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAiNED
]
l 1
l ATTACHMENT F (care 4 of 4)
REFUEL CAVITY TO FUEL POOL COOLING j
8 CONTIVUE ATTEM)TS TO RESTORE R i COO _ING:
- a. IE at anytime an RH train j
becomes available, IHEU:
- 1) Immediately align the RH i
train for RCS cooling per I
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 2) Return FC System lineup to normal per SE direction
)
- 3) RETURN TO 1 BOA PRI-10, Step 7 i
1
- END -
1 1
AFPROVED APR 0 31990 B.O.S.R.
I Page 52 of 61 l
(0166E/0018E/012090) i l
LOSS OF RH COOLING UNIT 1 1B0A
(
REV. 55 PRI-10 1
STEP ACTION / EXPECTED RES?ONSE RESPONSE NOT OBTAiNED e
ATTACHMENT G (PAGE 1 of 4)
I SI PUMP HOT LEG INJECTION l
i NOTE This ATTACHMENT uses an SI pump in i
a hot leg injection mode. It should be noted that a finite volume of water exists in the RWST, and that i
i overspill from the RCS may be 1
unavailable for injection.
l i
-i NOTE l
Evacuate the Containment if any overspill is expected to occur.
1 CHECK RWST LEVEL:
- a. RWST level - GREATER THAN 67.
- a. GO To another ATTACHMENT for RCS cooling per t
TABLE A (page 8),
l i
2 CHECK SI PUMPS:
- a. SI pump - AVAILABLE:
- a. Restore one pump in a reasonable period of time l or Go To another o
1A SI Pump ATTACHMENT for RCS cooling o
1B SI Pump per TABLE A (page 8).
l 3
VERIFY ECCS VALVE LINEUP:
- a. SI pumps miniflow isolation valves - OPEN:
1 1SI-8813 i
ISI-8920 (1B SI Pp)
AFFROVED Step continued on next page APR 0 31990 B.O.S.R.
Page 53 cf 61 (0166E/0018E/012090) i
r i
LOSS OF RH COOLING UNIT 1 IB0A REV. 55 PRI-10 l
1 l
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAiNED ATTACHMENT G (PAGE 2 of 4)
SI PUMP HOT LEG INJECTION i
i Step 3 (continued) f l
- b. SI pumps suction valves - DEEN:
15I-8806 o
ISI-8923B (lB SI Pp)
- c. RCS Hot Leg injection valves -
QEEN:
o ISI-8802A (lA SI Pp)
)
- d. RCS Cold Leg injection valves -
CLOSED:
l 1SI-8821A 1SI-8821B i
1SI-8835 j
i 1
HDTE l
Use the SI Pump Injection only as i
necessary to maintain Reactor Vessel
]
4 START ONE SI PUMP l
5 K0.NITOR CNMT FOR Asl i
OVERSPILL CONDITIOT :
J 1
- a. At the first indication of any AFFROVED containment overspill -
EVACUATE CONTAINMENT APR 0 31990 l
B.O.S.R.
J l
(0166E/0018E/012090)
~
)
LOSS OF RH COOLING UNIT 1 1 BOA REV. 55 PRI-10 1
STEP ACTION / EXPECTED RES?ONSE RESFONSE NOT OBTAitiED I
ATTACHMENT G (PAGE 3 of 4)
SI PUMP HOT LEG INJECTION 4
i 6
MONITOR RWST LEVEL:
7 CtlECK IF SI
- _0R CAN BE STOPP D:
- a. Check reactor vessel level:
- a. Do EQI stop SI flow.
RETURN TO I
o RVLIS plenum region -
Step 5 of this GREATER THAN OR ATTACHMENT.
EOUAL TO 377.
-OR-
~
o ILI-RYO46, RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6"
-OR-o ILI-RYO49. RV HL LEVEL -
GEE 6IER THAN OR EOUAL TO 393'6"
-OR-t o Tygon hose - GREATER THAN 393'6" i
i
- b. Chech RCS temperature -
RETURN TO I
Step 5 of this ATTACHMENT.
i AFFROVED Step continued on next page APR 0 51990 B.O.S.R.
(0166E/0018E/012090)
LOSS OF RH COOLING UNIT 1 1 BOA REY. 55 PRI-10 STEP ACTION / EXPECTED RESFCNSE RESFONSE NOT OSTAiNED I
i ATIACHliENT G (PAGE 4 of 4)
SI PUMP HOT LEG INJECTION Step 7 (continued) t t
- c. Verify SI pumps miniflow isolation valves - OPEN:
1SI8813 I
o 1SI8814 (lA SI Pp) o 1 SIB 920 (1B SI Pp)
\\
- d. Close the RCS hot leg i
injection valves:
1SI8802A 1 SIB 802B
- e. Verify SI pump HOI _ LEG
- e. Stop the running I
injection flow - STOPPED SI pump.
8 CONTINUE ATTEMPTS TO RESTORE RH COOLING:
- a. IE at anytime an RH train becomes available.
IHEII:
- 1) Immediately align the RH train for RCS cooling per l
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 3) RETURN TO 1 BOA PRI-10 Step 7 i
i
- END -
APPROVED APR 0 31990 l
1 B.O.S.R.
(0166E/0018E/01:090) i
i
.)
LOSS OF RH UNIT 1 1 BOA j
REY. 55 PRI-10 1
i STEP ACTION / EXPECTED RESFDNSE RESPONSE NOT 06TAif4ED ATTACHMENT H (PAGE 1 of 3) i ACCUMULATOR INJECTION i
CAUTIO]i A rapid high pressure accumulator injection may disarrange fuel as;emblies if the upper internals are removed.
l I
1 CAUTION i
The minimum ambient temperature for pressurization of the accumulator (s) 1s 70*F.
i NOTE This ATTACHMENT utilizes accumulator
- injection to obtain RCS cooling.
Accumulator injection should be used
- 1 only as necessary to limit cavity spillover.
1 CHECK ACCUMULATOR STATUS:
- a. One accumulator pressure -
- a. Attempt to restore INDICATING ON SCALE accumulator (s) or GO TO another ATTACHMENT for RCS cooling per TABLE A l
(Page 8).
- b. One accumulator level -
- b. Attempt to restore INDICATING ON SCALE accumulator (s) or GO To another ATTACHMENT for RCS cooling per TABLE A l
(page 8).
- rROVED APR 0 31990 B.O.S.R.
1 Page 57 of 61 (0166E/0018E/012090)
(
l
LOSS OF RH UNIT 1 1 BOA REV. 55 PRI-10 STEP ACTION / EXPECTED RE5?DN5E RESFONSE NOT OBTAiNED ATTACHMENT H (PAGE 2 of 3)
ACCUMULATOR INJECTION 2
EVA _lJATE REFUEL CAVITY LEV E _ FOR OVE RSPI LL:
- a. Refuel cavity level low
- a. Lower refuel cavity level enough to accept contents per BOP RE-4, FINAL DRAIN of accumulator without OF REFUEL CAVITY, TRANSFER overspill CANAL AND UPENDER AREAS.
3 VERL:Y ACCUMULATOR DISCHARGE VALVES AVAL _AB LE:
- a. At associated MCC Energize accumulator discharge valves:
1SI8808A (MCC 131I2A Cub A3) 1SI8808B (MCC 132X2A Cub A3) 1 SIB 808C (MCC 132X2A Cub A2) 1SI8808D (MCC 13112A Cub A2)
~
14 INJECT ACCUMULATOR:
- a. GO To Step 6.
temperatures - GREATER THAN OR EOUAL TO 140*F
- b. Inject one accumulator by
- b. II all accumulators manually opening its discharge injected isolation valve:
IEEH GO To another ATTACHMENT for RCS cooling o
ISI8808A per TABLE A (page 8).
j, o
1SI8808B o
1SI8808C o
1SI8808D 5
MONITOR CNMT FOR AiY OVERSPILi_ CONDIT10 s :
- a. At first indication of any overspill - EVACUATE CONTAINMENT
/JTROVED APR 0 31990 s.o.S.R.
Page 58 of 61 (0166E/0018E/012090)
l LOSS OF RH UNIT 1 1 BOA REV. 55 PRI-10 l
r STEP ACTION / EXPECTED RESPON5E RESPONSE NOT OBTAiNED i
ATTACHMENT H (PAGE 3 of 3)
ACCUMULATOR INJECTION 6
EVALUATE EF:ECTIVENESS 0F COOLING i ETHOD:
- a. Check RCS level:
- a. RETURN TO Step 1 of this ATTACHMENT.
o RVLIS plenum region - M I
LEAST 377.
o ILI-RYO46, RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6" o
ILI-RYO49. RV HL LEVEL -
GREATER THAN OR EOUAL TO 393'6" o
Tygon hose - GREATER THAN OR EOUAL TO 393'6" b.CheckRCStemperkture-
- b. RETURN TO Step 1 STABLE OR DECREASING of this ATTACHMENT.
7 CONTINUE ATTEMP"S TO RESTORE R i C00LL NG:
i
- a. II at anytime an RH train becomes available, THEN:
- 1) Immediately align the RH train for RCS cooling using I
BOP RH-6, PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 3) RETURN TO 1 BOA PRI-10, Step 7 AFFROVED
- E"D -
APR 0 31990 B. O. S. R.
Page 59 of 61 (0166E/0018E/012090) 2
LOSS OF RH COOLING UNIT 1 1 BOA REV. 55 PRI-10 STEP ACTil0N/ EXPECTED RESPONSE RESPONSE NOT OBTAiNED ATTACHMENT I (PAGE 1 of 2)
{
RWST GRAVITY FEED I
I 1
CHECK RWST LEVEL:
- a. RWST level - ANY INDICATED
- a. Go To another ATTACHMENT LEVEL for RCS cooling per TABLE A (page 8).
l 2
ESTABLISH FILL PATH FROM RWST:
- a. Verify containment sump outlet isol vlvs - CLOSED:
1SI8811A 1SI8811B
- b. Verify RH pump suct from hot leg isol v1vs - CLOSED:
o 1RH8701A and B o
1RH8702A and B
- c. Verify RH pump dsch vivs -
OPEN:
o 1RH8724A o
1RH8724B
- d. Verify RH HI Flow control vlvs - OPEN:
o 1RH606 o
1RH607
- e. Verify RH Pp 1A/B Mini-Flow vivs - OPEN:
I o
1RH610 o
1RH611 APPROVED Step continued on next page APR 0 31990
(
B.O.S.R.
Page 60 of 61 (0166E/0018E/012090) i i
1 LOSS OF RH COOLING UNIT 1 1B0A RCV. 55 PRI-10 i
STEP ACTION / EXPECTED RESPONSE RESPONSE NOT OSTAiNED ATTACHMENT I (PAGE 2 of 2)
RWST GRAVITY FFrn Step 2 (continued)
- f. Verify RH Ex Dsch Line Dwst Isol V1vs - OPEN:
)
o 1SI8809A o
1SI8809B t
{
- g. Verify RH pump Svet from RWST l
Isol Vivs - OPEN:
l l
o 1SI8812A l
o 1SI8812B l
3 LVALUATE EFFECTIVENESS OF COOLING i
i 1ElliOR:
- a. Check RCS level - INCREASING
- a. Go TO another ATTACHMENT i
for RCS cooling per TABLE A (page 8).
l
- b. Check RCS level - GREATER
i 11 CONTIN 1JE ATTEMPTS TO RESTORE RH C00 _IN 3:
- a. II at anytime an RH train becomes available.
l THEN:
- 1) Immediately align the RH train i
for RCS cooling per BOP RH-6, I
PLACING THE RH SYSTEM IN SHUTDOWN COOLING
- 2) Return CV/SI systems to normal lineup per SE direction l
APPROVED
- 3) RETURN TO 1 BOA PRI-10, Step 7 APR 0 31990
-END-g, g, g, g, Page 61 of 61 (0166E/0018E/012090) i
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