ML19309G443
| ML19309G443 | |
| Person / Time | |
|---|---|
| Site: | Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png |
| Issue date: | 04/30/1980 |
| From: | Counsil W CONNECTICUT YANKEE ATOMIC POWER CO. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| TASK-07-03, TASK-7-3, TASK-RR NUDOCS 8005060294 | |
| Download: ML19309G443 (4) | |
Text
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0005060204 e
CONNECTICUT YANKEE ATOMIC POWER COMPANY BERLIN, CO N N EC TIC U T P.O.BOE 270 H ARTFORD CONNECTICUT 06101 Ysterwome 203 666 8911 April 30, 1980 Docket No. 50-213 Director of Nuclear Reactor Regulation Attn:
Mr. Dennis M. Crutchfield, Chief Operating tteactors Branch #5 U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Gentlemen:
lladdam Neck Plent SEP Topic VII-3 Systems Required for Safe Shutdown In recent verbal requests, NRC Staff members noted that cc.".ain electrical diagrams of the lladdam Neck Plant Safe Shutdown Systems would be required to complete the review of SEP Topic VII-3.
Accordingly, enclosed are aperture cards for the attached list of diagrams, including one-line diagrams for 120 V A.C. distribution, control diagrams for listed pumps and valves.
tiore definitive information is needed to fill the request of a control diagram for circuit VVF-12A.
Also requested was information regarding the sources of control power (D.C.)
to the breaker circuits. As this information is not presented on the control diagrams, enclosed is one (1) aperture card for Drawing No. 30008, the 125 V D.C. one-line diagram.
Depicted is one D.C. feed to each of the 4160 V buses in which the above-listed breakers are housed. As such, each breaker in a given bus derives its control power from its respectfve bus D.C. supply.
We trust the enclosed aperture cards are sufficient for the Staff to complete its review.
Very truly yours, CONNECTICUT YANKEE ATOMIC POWER COMPANY
/
/r
' $$ L W. G. Counsil Vice President Attachment i
LOCKET NO. 50-213 ATTACllMENT liADDAM NECK PLANT SEP TOPIC VII-3 SYSTEMS REQUIRED FOR SAFE SilUTDOWN APRIL, 1980
Item No.1 - 120 V A.C. distribution for RPS, Instrumentation and NIS
-- See 30055, Sh. 1, 2, and 3; and 30013, Sh. 1 and 2.
Item No. 2 - Control diagram for circuit VVF-12A -- We need more descriptive information to fill this request.
Item No. 3 - Control diagrams for pumps:
Pump No.
Drawing No.
P-32-C 32001, Sh. SR P-9-1A, 1B 32112, Sh. 22 P-ll-1A 32112, Sh. 13 P-92-A, B 32001, Sh. SP Item No. 4 - Control diagrams for valves:
Valve No.
Drawing No.
FCV 1301-1 31079, Sh. 37 FCV 1301-2 31079, Sh. 38 FCV 1301-1 31079, Sh. 39 FCV 1301-4 31079, Sh. 40 FCV 796 32113, Sh. 4 FCV 602 32113, Sh. 4 FCV 110 32113, Sh. 6 FCV 110A 32113, Sh. 6A FCV 875 32113, Sh. 4 MOV 372 Dwg. to follow at later date MOV 596 32112, Sh. 74 MOV 597 32112, Sh. 75 MOV 598 32112, Sh. 76 FCV 202 32150, Sh.19 FCV 203 32150, Sh. 19 4
FCV 204 32150, Sh. 19 MOV 599 32112, Sh. 77 MOV 570 32112, Sh. 70A
- MOV 871A 32112,.Sh. 29
- MOV 871B 32112, Sh. 29 i
i
. (* - Request. was for MOV 872A and B -- As there are no I
MOV's with this number, we assumed these were MOV's 871A and B, the core deluge valves).
I 1
2 l
Y
I t em No. 5 - Control diagrams for breakers:
Breaker No.
Drawing No.
4840 32112, Sh.15 2T8 32001, Sh. 5H 2T1B 32112, Sh. 18 3TlA 32112, Sh. 40 2T3 32112, Sh. 20 3T9 (asked for 3TP) 32001, Sh. SL 4970 32112, Sh. 15 3891 32112, Sh. 19 3091B 32112
-Sh. 17 3091A (asked for 5091A) 32112, Sh. 17 3991 (asked for 8991) 32112, Sh. 19
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