ML20140B829
| ML20140B829 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 03/24/1997 |
| From: | ROCHESTER GAS & ELECTRIC CORP. |
| To: | |
| Shared Package | |
| ML17264A838 | List: |
| References | |
| PROC-970324, NUDOCS 9704010321 | |
| Download: ML20140B829 (2) | |
Text
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((3 E0P:
liiLL:
I REV: 3 ATT-12.0 ATTACHMENT N2 PORVS PAGE 1 of 2 Responsible Manager o
Date O-N-9]
i 0
l WHEN IA to CNMT NOT available, THEN perform the following to operate one (or both) PRZR PORV(s) in accordance with guidance provided by the procedure step:
a NOTE:
o If RCS overpressurization accumulator pressure decreases to less than 200 psig, then recharge accumulators using S-29.2, CHARGING THE REACTOR VESSEL OVERPRESSURE PROTECTION SYSTEM ACCUMULATORS.WITH N2.
This will require reset of CI and XY relays for the N2 supply valve to CNMT, AOV-846.
o For FR-H.1 Bleed and Feed the PORV block valve is not i
required to be operable.
l A)
Select a PORV with an operable block valve, obtain a key for the RCS overpressurization system, and perform the appropriate step below:
o PCV-431C:
a)
Verify block valve MOV-515 - OPEN AND OPERABLE
(}
b)
Place OP ACCUM TO SURGE TK VLV SOV-8616B to OPEN
(_-
o PCV-430-i a)
Verify block valve MOV-516 - OPEN AND OPERABLE i
b)
Place OP ACCUM TO SURGE TK VLV SOV-8616A to OPEN l
B)
To depressurize the RCS in accordance with the guidance provided by the EOP step, perform the following:
o For PCV-431C, place overpressurization system arming switch, PCV-431C N2 ARMING VLV SOV-8619B, to ARM o
For PCV-430, place overpressurization system arming switch, PCV-430 N2 ARMING VLV SOV-8619A, to ARM C)
IF it is desired to maintain PORV(s) open below 410 psig, I
THEN place overpressure bistables to the trip position:
l 1.
In R-2 Protection Channel 1 Rack l
)
o 452B l
o 452C l
2.
In W-2 Protection Channel 2 Rack l
'o 451B l
o 451C l
O)
(,
3.
In B-2 Protection Channel 3 Rack I
o 450B l
o 450C I
9704010321 970324 PDR ADOCK 05000244 F
e a
LOP:
IIILE:
REV: 3 ATT-12.0 ATTACHMENT N2 PORVS PAGE 2 of 2 D)
WHEN depressurization complete, THEN close PORV(s) by placing SOV-8619A and SOV-8619B to BLOCK.
I E)
Ensure the overpressure protection bistables in the l
untripped position:
1 i
1.
In R-2 Protection Channel 1 Rack I.
4 o
452B l
o 452C 1
a 2.
In W-2 Protection Channel 2 Rack i
^
o 451B l
o 451C i
1 i
3.
In B-2 Protection Channel 3 Rack i
o 450B l
o 450C l
j l
1 3
- (V 1
)
)
i 4
4 I
i
.