ML20204B483
| ML20204B483 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 10/10/1978 |
| From: | Crane P PACIFIC GAS & ELECTRIC CO. |
| To: | Stolz J Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 7810170205 | |
| Download: ML20204B483 (2) | |
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ctober 10, 1978
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Mr. John F. Stolz, Chief i
Light Wat er Reactors Branch No.1
.I Division of Project Management U. S. Nuclear. Regulatory Commission Washingto.n, D. C. 20555 Re:
Docket No. 50-275-OL Docket No. 50-323 OL Diablo Canyon Units 1 & 2 i
Dear Mr.'Stolz:
The attached' Table.6.3-10, which appeared in Amendment. 67, has been changed where ' indicated to re-l flect the Staff's concerns on the added valves' position-
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and function, This change will be documented in a future E
amendment.
I F.ive copies of this submittal have been sent dire'etly to Mr. Dennis Allison.
Kindly acknowledge receipt of the above material on the enclosed copy.of this' letter and return it to me in the enclosed addressed envelope.
Very truly yours, j
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Attachment (40)
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CC w/ attachment:
Mr. Dennis Allison Service List-i th h qviorigor 3ex a
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TABLE 6.3-10 m.
ECCS MOTOR-OPERATED VALVES WITH.
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- 'IRIC POWER REMOVED DURING NORMAL OPERATION j
Position
,old Leg
_ Hot Leg Power
.@alve Normal Inj ection Recire'.
.Recire Restorable.Fdom l
3dentification Service Description Operatien Phase Pha se Phase Control Room 8703 RHR Pump discharge to RCS Closed Closed Clou?d-Open-
'No hot leg loops
- 8802 A, B SIS pamp discharge to RCS Closed Closed
. Closed-Open No hot leg lo es 4
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880d A, B, C, D
-Accumulator isolation Open Open Open-Open-
.No l
8809 A RHR pump discharge to RCS Open Open Closed.
Closed Yes-i 8809 B cold leg loops Open
'Open open closed Yes i
?
8835 SIS pump ' discharge to RCS Open Open
'Open-
' Closed No cold leg loops 4
l 8974'A, B SIS pump miniflow Open Open Closed' Closed Yes 8976 RWST supply to SIS pumps Open Open Closed Closed No 8980 RWST supply to RllR pumps Open Open-Closed Closed-No 8982 A, B Containment recirc sump Closed Closed.
Open Open
'Yes supply to RIIR pumps 8992'
'NaOH spray additive supply Opc n Open Open Open.
No "8701 Loop 4 hot leg RilR suction Closed Closed Closed Closed No
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valvt 2 i
- 8702 Loop 4 hot lez RHR suction Closed Closed Cl Jed~
. Closed'
~ No j
valve 1 i
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- Valve required to fune tion 1*or a normal EHR cool down not for ECCS.
O 1978)
Amendment i,
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