ML19291C228
| ML19291C228 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 01/15/1980 |
| From: | Naughton W COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8001230160 | |
| Download: ML19291C228 (5) | |
Text
p Commonwealth Edison one First National Plaza. Chicago Ilknois Address Reply to: Post Office Box 767 Chicago. Illinois 60690 January 15, 1980 Dr. Harold R.
Denton, Director Office of Nuclear Reactor Regulation U.S.
Nuclear Regulatory Commission Washington, DC 20555
Subject:
Byron Station Units 1 and 2 and Braidwood Station Units 1 and 2 Response to NRC Request for Additional FSAR Information NRC Docket Nos. 50-454, 50-455, 50-456 and 50-457
Dear Dr. Denton:
Per a request from C. W. Moon of your staff Common-wealth Edison Company hereby transmits the drawings listed in the Attachment to this letter.
Note that the Block Diagram on Turbine Trip Protection (Drawing No. 6/20E-1-4026B) is not included but will be available in March 1980.
These drawings are the latest revisions of the drawings listed in Section 1.7 of the Byron and Braidwood FSAR.
The list in Section 1.7 will be revised with the next FSAR Amendment.
One (1) signed original and thirty-nine (39) copies of this letter are transmitted for your use.
Under separate cover and per Regulatory Guide 1.70, Revision 2, seven (7) copies of these drawings are provided for your use.
Very truly yours, j
d vt W.
P.
Naug on Nuclear Licensing Administrator Pressurized Water Reactors WFN: rap Attachment 1792 071
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8001230
p ATTACliMENT Page 1 _ of 4
The following drawings were sent to you previously to be included as part of the docketing of the Byron /Braidwood FSAR:
Drawing Number Title Rev.
Date 6E-0-4001 Station One Line Diagram D
4-20-78 (Byron) 20E-0-4001 Station One Line Diagram D
4-20-78 (Braidwoood) 6E-1-4001 Station Key Diagram B
9-25-78 (Byron) 20E-1-4001 Station Key Diagram A
11-22-78 (Braidwood) 5/20E-1-4002A Single Line Diagram Generator C
8-10-79 Main Power and Unit Auxiliary Transformer 6/20E-1-4002B Single Line Diagram System D
8-10-79 Auxiliary Transformer and 6.9 kV Switchgear 6/20E-1-4002C Single Line Diagram 4.16 kV E
8-10-79 Switchgear Bus 141 and 143, Diesel Generator 1B and 480-V Switchgear 6/20E-1-4002D Single Line Diagram 4.16 kV F
11-2-79 Switchgear Bus 142 and 144, Diesel Generator 1B and 480-V Switchgear 6/20E-1-4002E Single Line Diagram 125-Vac C
8-10-79 ESF Instr. Bus 111 and 113, 125-Vdc Distr. Center 1 C/20E-1-4002F Single Line Diagram 120-Vac C
8-10-79 ESF Instr. Bus 112 and 114, 125-Vdc Distr. Center 1 6/20E-1-4026A Block Diagram-Generator and A
3-30-77 System Auxiliary Transformers Tripping Relays 6/20E-l*4026C Block Diagram Reactor Trip A
3-30-77 Protection Part 1 6/20E-1-4026D Block Diagram Reactor Trip A
3 77 Protection Part 2 1792 072
P ATTACHMENT Page 2
of
_4_ __
Title Rev._
Date D,rawing Number 6/20E-1-4027A Cable Separation Criteria A
5-16-77 Table Composite 6/20E-1-4027B Cable Separation Criteria A
5-16-7.7 Table Reactor Protection and Nuclear Instr. System 6/20E-1-4027C Cable Separation Criteria A
5-16-77 Table Engr. Safety Feature and Non-Safety-Related Cables B
6-23-77 6/20E-1-4029 AP03 Control Logic Diagram System Auxiliary Transformer 142-1 (142-2) Tripping Relays 6/20E-1-4029 APOS Control Logic Diagram Unit B
5-23-77 Auxiliary Transformer 141-1 and 141-2 Feed to 6.9kV Buses 156, 157, 158, 159 6-23-77 6/20E-1-4029 AP06 Control Logic Diagram System D
Auxiliary Transformers 142-1 and 142-2 Feed to 6.9kV Switch-gear Buses 156-159 6/20E-1-4029 AP07 Control Logic Diagram 6.9kV B
6-23-77 Switchgear Bus 156 Under-voltage Relays 6/20E-1-4029 AP08 Control Logic Diagram 6.9kV B
6-23-77 Switchgear Bus 157 Under-voltage Relays 6/20E-1-4029 AP09 Control Logic Diagram 6.9kV B
6-23-77 Switchgear Buses 158 and 159 Undervoltage Relays 6/20E-1-4029 APll Control Logic Diagram System B
6-23-77 Auxiliary Transformer 14 2-1 and 142-2 Feed to 4.16V Switchgear Bus 141 and 142 B
6-23-77 6/20E-1-4029 AP12 Control Logic Diagram-Reserve Feed From 4.16kV to Switchgear Bus 245-1 (245-2) To 4.16kV Switchgear Bus 141 (142)
I75L2 073
op ATTACHMENT Page 3
of 4
Drawing Number Title Rev.
Date 6/20E-1-4029 AP13 Control Logic Diagram-Bus A
3-30-77 Tie Breaker 4.16kV Switch-gear Bus 143 (144) 6/20E-1-4029 APl4 Control Logic Diagram B
6-23-77 4.16kV Switchgear Buses To 480-V Auxiliary i
Transformers B
6-23-77 6/20E-1-4029 AP15 Control Logic Diagram 4.16kV.Switchgear Bus 141, 142 Undervoltage Relays 6/20E-1-4029 APl7 Control Logic Diagram-A 3-30-77 System Auxiliary Trans-former 141-1 (141-2)
Feed to 4.16kV Switchgear Bus 143 (144) 6/20E-1-4029 AP18 Control Logic Diagram-B 6-23-77
~ ~
System Auxiliary Trans-former 142-1 and 142-2 Feed to 4.16kV Switch-gear Bus 143 (144) 6/20E-1-4029 AP19 Control Logic Diagram A
3-30-77 4.16kV Switchgear Bus 143 (144) Feed to 480-V Auxiliary Transformer 133X (134X) 480-V Auxiliary
~--
_ ~
Transformer 6/20E-1-4029 AP20 Control Logic Diagram A
3-30-77
~
4.16kV Switchgear Bus 14 3 (144) Feed 4 80-V Transformer 133Z (134Z) and 480-V Auxiliary Transformer 0A Bus 6/20E-1-4029 AP21 Control Logic Diagram 4.16kV B
6-23-77 Switchgear Bus 143, 144 Undervoltage Relays 6/20E-1-4029 DC01 Control Logic Diagram 125V dc B
6-23-77 Battery Charger 111 (lDClE) and 112 O
1792 074
ATTACilMENT Page 4__ o f.
4 Drawing Number Title Rev.
Date 6/20E-1-4029 DC02 Control Logic Diagram 125V B
3-16-79 dc Distribution Centers 111 (lDC05E) and 112 The following drawing has not been prepared to date, but will be avail-able as of the date indicated:
Drawing Number Title Rev.
_D,a_t_e 6/20E-1-4026B Block Diagram Turbine A
3-1-80 Trip Protection e
o e
I O
O p
D e
4 e
m e
O I
e 5
9 m
m 1792 075
.