ML040090354
| ML040090354 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 12/22/2003 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| FOIA/PA-2003-0358 | |
| Download: ML040090354 (7) | |
Text
Attachment I LOCAL MANUAL OPERATOR ACTION STEPS REVIEWED FOR ACHIEVING HOT STANDBY
'AOP-036 (Safe Shutdown Following a Fire, Rev. 21)
Section 3.0 Actions: -
Step 12.c RNO
-MONITOR AFW pump suction pressure indicators as an alternative to CST level indication: (Refer to Attachment 4, AFW Suction Pressure vs.
CST level)
. P1-2271 (at TDAFW Pump)
Step 13.b(3)
Locally PERFORM the following (248' RAB):
(a) SHUT 1CS-228, Normal Charging FCV Inlet Iolation Valve.
(b) THROTTLE 1CS-227, Normal Charging FCV Bypass, as necessary to control charging flow.
Step 13.c RNO ESTABLISH flow through the Hi Head SI Line, as follows:
(1).(MCR action)
(2)..-.(MCR action)
(3)'OPEN ONE of the following breakers:
1B31-SB 4C, 1 Sl-3 BIT Outlet 1A31-SA 4C, ISI-BIT Outlet (4) WHEN directed by MCR, THEN locally THROTTLE the de-energized valve to maintain PRZ-level:.
I iSI-3, BIT Outlet Isolation 1SI-4, BIT Outlet Isolation-Stepl4.b UNLOCK and SHUTthe affected-manual-blockvalve(_) (Steam Tunnel-Platform El. 280)
MS-59, SG A PORV Manual Block 1MS-61, SG B PORV Manual Block 1 MS-63, SG C PORV Manual Block, SSD Emergency Manual Operations: Fire Area: 1-A-BATB Step 1 IF RHR suction valves sp'uri6usly open resulting in RWST drain down, THEN PERFORM the following recommended actions, as required:
K I,
V.' 1
-A I.IC"P 1*-
Step 1.a ISOLATE the Containment Recirc Sumps from the RWST, as follows:
(1) SHUT the following valves:
SI-322, RWST To RHR Pump A-SA (RAB 286)
(2) DE-ENERGIZE the following valves:
- SI-322 at breaker 1A31-SA-6E (RAB 286)
. ISI-323 at breaker 1B31-SB-6E (RAB 286)
Step.b REFILL the RWST with A RHR Pump, as follows:
(1) SHUT ISI-327, Low Head SI Train B to Hot Leg Crossover Isol Vlv.
(2) OPEN the following valves to align RHR HX outlet flow to the RWST:
. 1SI-448, Low Head SI Recirc to RWST Root Isol Vlv
. 1SI-331, Low Head SI Recirc to RWST Isol VIv (3) USE the RHR Pump as needed.
Step 1.d WHEN RHR Pumps are no longer required to fill the RWST, THEN:
(1) SHUT the following valves to isolate RHR HX outlet flow from the RWST:
1S-448, Low Head SI Recirc to RWST Root Isol Vlv
. 1SI-331, Low Head SI Recirc to RWST Isol Vlv (2) OPEN ISI-327, Low Head SI Train B to Hot Leg Crossover Isol Vlv.
Step 2 PERFORM the following to prevent spurious valve open ing:
Step 2.a VERIFY the following valves are SHUT:
. 1SI-311, CV Sump 1 B To RHR Pmp B-SB Downstrm Iso Vlv (RAB 286)
Step 2.b DE-ENERGIZE the following valves:
- 1SI-311 at breaker 1B21-SB-7A (RAB 286), SSD Emergency Manual Operations: Fire-Area: 1-A-EPA Step 7 IF RHR suction valves spuriously open resulting in RWST drain down, THEN PERFORM the following recommended actions, as required:
- I
Step 7.a-. -
ISGLATEtheContainment Recirc Sumps from the RWST, as follows:
(1) SHUT the following valves:
(2) DE-ENERGIZE the following valves:.
- SI-322 at breaker 1A31-SA-6E (RAB 286)
S*
1I-323 at breaker 1B31-SB-6E (RAB 286)
Step 7.b.
REFILL the RWST with B RHR Pump, as follows:
(1) SHUT 1SI-326, Low Head SI Train A to'Hot Leg Cross-over Iso! Vlv.
(2) OPEN the following valves to align RHR HX outlet flow to the RWST:
Step 7.c IF charging is required in'the'interim, THEN USE the Boric'Acid Tanks.
Step 7.d WHEN RHR Pumps are no longer required to fill the RWST, THEN:
(1) SHUT the following 'valves to isolate RHR HX outlet flow from the RWST:
. 1SJ-448, Low Head SI Recirc to RWST Root Isol VIv
. ISI-331, Low Head SI Recirc to RWST Isol VIv (2) OPEN 1SI-326, Low Head SI Train A to Hot Leg Cross-over Iso! VIv.
Step 8 PERFORM the following to prevent spurious valve opening:
Step 8.a VERIFY the following valves are SHUT:
.ISI-300, CV Sump 1A To RHR Pmp IA-SA CIV (RAB 286) 1SI-310, CV Sump 1A To RHR Pmp IA-SA Downstrm Iso Vlv
- (RAB 286)
^ -
Step 8.b DE-ENERGIZE the following valves:
1SI-300 at breaker 1A21-SA-7C (RAB 286)
- ISI-310 at breaker 1A21-SA-9B (RAB 286)
II II II I
I,- I-W7 1.1711M I
I1 I4..IT I, SSD Emergency Manual Operations: Fire Area: 1-A-BAL Step 1 PERFORM the following to prevent spurious valve operations:
Step l.a VERIFY the following valves are OPEN
. 1CS-214, Charging/SI Pumps Miniflow Isol (RAB 236 near Boric Acid Pumps)
. 1CC-252, CCW From RCP Thermal Barrier FCV (RAB 236 Scalloped Area)
Step.b DE-ENERGIZE the following valves:
CS-214 at breaker 1A35-SA-4C (RAB 261)
I ICS-169 at breaker 1A35-SA-4B (RAB 261)
. ICS-218 at breaker 1B35-SB-14D (RAB 261)
Step 5 CAUTION
. The following step will inhibit all automatic and manual safeguards functions since a fire in this area could cause spurious actuations as well as disable controls for resetting SI.
a Removal of Output Relay Power Fuses from both trains of SSPS will generate a Reactor Trip signal. The Reactor should be shut down prior to performing the following step.
OBTAIN SSPS Key 96 AND DEFEAT both trains of SSPS by removing the listed fuses in the front of the listed SSPS Output Cabinets:
. Train A, Output Cabinet No. 1, Output Relay Power fuses
- Train A, Output Cabinet No. 2, fuses 61 and 62
- Train B, Output Cabinet No. 1, Output Relay Power fuses
. Train B, Output Cabinet No. 2, fuses 61 and 62 Step 20 IF the following valves cannot be shut due to fire damage to their control
- cables,
THEN:
Step 20.a STOP ALL CSIPs.
Step 20.b SHUT EITHER of the following valves:
1 iACS-1 7
A CSI. Suction X-conn.
- ICS-168, C CSIP Suction X-conn with A CSIP Step 20.c SHUT EITHER of the following valves:
- CS-169, C CSIP SuctionX-conn with B CSIP
-1CS-171, B CSIP Suction X-conn Step 20.d VERIFY SHUT 1CS-214, Charging/SI Pumps Miniflow Isol.
Step 21 IF BOTH of the following occur due to fire damage to their control cables:
1SW-270, ESW Header A Return to Aux Reservoir, spuriously SHUTS I
.SW-276, ESW to NSW Discharge HDR, spuriously OPENS THEN ALIGN flow to the cooling tower, as follows:
Step 21.a VERIFY OPEN 1 SW-275, ESW Return Header A to NSW.
Step 21.b WHEN time permits, THEN:
(1) DE-ENERGIZE I SW-270, ESW Header A Return to Aux Reservoir, at breaker 1A35-SA-9C (RAB 261).
(2) OPEN lSW-270 locally (RAB 261).
(3) WHEN ISW-270 is open, THEN SHUT 1SW-276, ESW to NSW Discharge Hdr.
Step 22 IF BOTH 1SW-270 AND 1SW-276 shut, THEN CROSS-CONNECT ESW Discharge Headers as follows:
Step 22.a, VERIFY OPEN ISW-274, ESW Return Header B to NSW.
Step 22.b VERIFY OPEN ISW-275, ESW Return Header A to NSW.
Step 22.c VERIFY OPEN ISW-271, ESW Header B Return to Aux Reservoir.
Step 22.d WHEN time permits, THEN:
(1) DE-ENERGIZE 1 SW-270, ESW Header A Return to Aux Reservoir, at breaker 1A35-SA-9C (RAB 261).
(2) OPEN ISW-270 locally (RAB 261).
(3) WHEN ISW-270 has been opened,
THEN SHUT 1SW-274, ESW Return Header B to NSW., SSD I Equipment Powered by SSD 2:
Step 2 IF control power is lost to 1 CS-231, Charging Flow controller, THEN PERFORM the following locally:
Step 2.a SHUT 1 CS-228, Normal Charging FCV Inlet Isolation Valve.
Step 2.b MAINTAIN 25% to 60% PRZ level (charging flow) using 1 CS-227, Normal Charging FCV Bypass.
I Attachment 3, SSD 2 Equipment Powered by SSD 1:
This attachment was reviewed but contained no hot standby local manual operator actions.
l
-OCALMANUAUOPERAXOR-ACTION STEPS
=VIEWED FOR ACHIEVING COLD SHUTDOWN AOP-036 (Safe Shutdown Following a Fire, Rev. 21), SSD Emergency Manual Operations: Fire Area: 1-A-EPA Step 4.b WHEN manpower Is available, THEN:
(1) DE-ENERGIZE the following valves:
. 1SI-246, Si Accumulator A Discharge, at breaker 1A21-SA-5C
- 1SI-248, Si Accumulator C Discharge, at breaker 1A21-SA-3D, SSD I Equipment Powered by SSD 2:
Step 6 IF I RH-30, RHR Heat Xchg A Out Flow Cont, OR 1 RH-20, RHR Hx Xchg A Byp Flow Cont, cannot be controlled due to loss of control power, THEN:
Step 6.a ISOLATE 1 RH-20 air supply, IA-128-12, to cause it to fall closed.
Step 6.d VERIFY RHR is cooling the RCS by trending temperature using ONE of the following methods:
... (MCR action)
- Local temperature indication TI-5551A (RHR Heat Exchanger.Outlet)