ML13330A361
| ML13330A361 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 07/28/1981 |
| From: | Moody W Southern California Edison Co |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| TASK-07-01.A, TASK-07-02, TASK-07-03, TASK-7-1.A, TASK-7-2, TASK-7-3, TASK-RR NUDOCS 8108040115 | |
| Download: ML13330A361 (13) | |
Text
Southern California Edison Company P. O. BOX 800 2244 WALNUT GROVE AVENUE ROSEMEAD. CALIFORNIA 91770 W. C. MOODY TELEPHONES MANAGER, NUCLEAR LICENSING July 28, 1981 (213) 572-1817 (213) 572-1806 Director, Office of Nuclear Reactor Regulation Attention:
D. M. Crutchfield, Chief Operating Reactors Branch No. 5 Division of Licensing U. S. Nuclear Regulatory Commission Washington, D.C.
20555 Gentlemen:
AUG03 1981 f
Subject:
Docket No. 50-206
-UIg SEP Topics VII-1.A, VII-2 and VII-3
'COI3IO IM San Onofre Nuclear Generating Station Unit 1 Your letter of March 16, 1981 requested additional information for your review of the subject SEP topics. Part of the information requested by your letter is provided as an enclosure to this letter. The remainder of the information will be provided by August 31, 1981.
If you have any questions on any of this information, please let us know.
Very truly yours, Enclosure 81 08040115 91728 PDR ADOCK 05000206 P-PDR
ENCLOSURE RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION SEP TOPICS VII-1.A, VII-2 and VII-3 SAN ONOFRE UNIT 1 Item 1.A Please provide electrical schematics (including control circuits) and panel layout drawings for the following valves from valve solenoid to power source, and for each valve, state the position assumed by the valve upon loss of air:
(1) SV 84 SV 88 ref. P&ID 568773-13 SV 86 SV 89 SV 87 SV 90 (2) SV 149 SV 151 ref. P&ID 568779-12 SV 150 (Please note SV 150,part of CV 144, and FC 144 appears to be shown as SV 157, but the drawing is not clear).
Response
The requested information for each solenoid valve is summarized on Table 1.
Elementary diagrams and panel layout drawings which are enclosed with this submittal are listed on Table 4. Note that the solenoid associated with CV 144 should be SV 150.
Item 1.B With reference to drawing 5102174-30, describe the functioning of automatic transfer switches upon restoration of the normal power source and provide a detailed schematic for transfer switches 1, 2, 3 and 5.
Response
Operator action is required to restore the transfer switches to the normal power source. A schematic of the transfer switches is currently not available. It is anticipated that a schematic will be available by August 31, 1981.
Item 1.C Provide the diesel generator breaker control schematic drawings.
Response
The diesel generator breaker control drawing is 5149630, a copy of which is enclosed.
Item 2 The drawings enclosed with your letter of February 19, 1981, do not provide sufficient information for an independent review. Accordingly, provide the schematics and one line drawings for the power and control circuits for the specified equipment.
Response
For each equipment item identified in the NRC's March 16, 1981 letter, the appropriate P&ID, elementary diagram and one line diagram are identified on Table 2. In cases where the information could not be located, it is identified as "NA" (Not Available) in Table 2. Elementary diagrams and one line diagrams provided in this submittal are listed in Table 4.
Item 4 Provide the following current schematics:
5149454 E/D Safety Injection Circuitry 5150623 E/D Reactor Scram Breakers A & B 5150874 E/D Safety Injection Sequencer #1 5150875 E/D Safety Injection Sequencer #2 5150884 Schem. Diag. Nuclear Inst. Power Range Drawer Sh 2 5151820 Permissive Relay Circuits For Scram Breaker Trip 5153972 Sh 1&2 Schematic Diagram Logic/Sequencer Cons. Cont.
N-1541 Sh 1 E/C Turbine
Response
The requested schematics are enclosed and listed in Table 4, with the exception of N-1541 Sheet 1 which is not available.
Item 5.B Provide current elementary or schematic drawings of the following systems:
(1) Control circuitry for the containment isolation system.
(2) One-line diagrams or panel drawings for the 120 V ac regulated and unregulated power to the RPS and ESF systems.
Response
(1) Containment isolation valves are listed in Table 3 along with the associated P&ID, elementary and logic diagrams. Copies of diagrams included with this submittal are listed in Table 4. A copy of the containment isolation system logic diagram is also listed on Table 4 and included with this submittal.
(2) The 120 VAC one line diagram is 5102174 a copy of which is enclosed.
TABLE 1 Failure Mode Item P&ID Elementary Diagrams Panel Layout Drawings Loss of Air Loss of Power SV85 568773 455116, 455459 568725, Aux. Panel C-38 Closed Closed SV86 568773 455116, 455459 568725, Aux. Panel C-38 Closed Closed SV87 568773 455116, 455459 568725, Aux. Panel C-38 Closed Closed SV88 568773 455116, 455459 568725, Aux. Panel C-38 Closed Closed SV89 568773 455116, 455460 568725 Closed Closed SV90 568773 455116, 455460 568725 Closed Closed SV149 568779 449408 568725, Aux. Panel C-38 Closed Open SV150 568779 449408 568725, Aux. Panel C-38 Closed Open SV151 568779 449408 568725, Aux. Panel C-38 Closed Open
TABLE 2 Item P&ID Elementary Diagrams One Line Diagrams G1A, 1B, 1C, 1D 568779 5149970 5146828, 5102162, 5102163 G3A, 3B 568779 5149858 5146828, 5102162, 5102163 GlOS 568779 5150882 5146828, 5148062 MOV 20, 21, 22 568779 455379 5102165, 5102167, 5102170 HV 852A, B 568779 455375 5102173, 5149348 HV 854A, B 568779 455374 5102173, 5149348 G11, 11S 5154097 5150349 5146828, 5148062, 5148063 G14A, B 568768 5150336 5146828, 5148062, 5148063 G15A, B, C 568768 5149971 5146825, 5148062, 5148063 Thermal Barrier 568768 450516 5102173 Emergency Pump MOV 720A, B 568768 455378 5102168, 5102166 MOV 813,, 822A, 833 568768 5151796 5102166 MOV 814, 822B, 834 568768 5151796 5102168 CV 772A, B, C 568768 455449 5102174 TCV 601 A, B 568768 63718, N-1542, Sheet 42 5102174 G13C 568775 5150354 5146828, 5148063 MOV 9, 11, 12 568775 455513 5102171 MOV 10 568775 455514 5102171 POV 3, 4 568775 5144927 5102166 5150627
-2 Item P&ID Elementary Diagrams One Line Diagrams POV 5, 6 568775 5149919 5102173, 5149345 POV 7, 8 568775 5150345 5102173, 5149345 POV 11 568775 5150354 5102173, 5149345 SV 79, 80 568775 5149927 5148062, 5148063 Emergency Compressor 568780 5150353 5102165 SV 62 568780 5149924 5102173 SV 105, 106, 107 568780 455561 5102170 SV 147 568780 5150353 5102165 PC 41 568780 NA Pneumatic CV 41 568780 NA Pneumatic CV/SV 123 568780 5159757 5102173 G8A, 8B 568769 5150626 5146828, 5102163, 5102162 G45A, 45B 568769 N-1542, Sheet 1 5146828, 5148062, 5148063 G50A, 50B 568769 455370 5146828, 5102163, 5102162 MOV 18, 19 568769 455371 5102-168, 5102165 MOV 356, 357, 358 568769 455371 5102166, 5102167, 5102171 MOV 850A, B 568769 455368
.5102168, 5102166 MOV 850C 568769 455516 5102171 HV 851A, B 568769 455373 5102174, 5102173, 5149348 HV 853A, B 568769 455372 5102174, 5102173, 5149348
-3 Item P&ID Elementary Diagrams One Line Diagrams MOV 866A, B 568769 455371 5102166, 5102168 MOV 883 568769 64374 5102171 MOV/LCV 1100B 568769 455369 5102165 MOV/LCV 1100C 568769 5151028 5102169 MOV/LCV 1100D 568769 5154354 5152168 CV 36, 37 568769 5149858 5102173, 5149348 CV 92 568769 455693 5102174 CV 875A, B 568769 5149858 5102173, 5149348 FQ/FY 500, 501 568769 NA NA FIS 520 568769 64363 5102174 FIS 521 568769 64363 5102174 RMS 2055, 2059 568769 64363 5102174 RMS 2056 568769 64369 NA G28, 28S 568767 5150334 5102165, 5102167 CV 202, 203, 204 568767 455448 5102174 CV 287, 288 568767 455448 5102174 CV 291 568767 455449 5102174 CV 304, 305 568767 455448 5102174 CV 406A, B 568767 455875 5102174 CV 412 568767 5130359 5102174 568252
-'4 Item P&ID Elementary Diagrams One Line Diagrams FCV 1115A, B, C 568767 3246-W-51-3-1 NA Sheet 13 and 13A 568252 FCV 1115D, E, F 568767 N1542 Sheet 57 5102173 HCV 1117 568767 N1542 Sheet 54 5102174 63719
TABLE 3 CONTAINMENT ISOLATION VALVE SU4ARY LOGIC DESCRIPTION INSIDE SPHERE ALIGNMENT*
OUTSIDE SPHERE ALIGNMENT*
P&ID ELEMENTARY DIAGRAM DIAGRAM
- 1.
Sphere Sump Discharge CV-102 (SV-108)
G CV-103 (SV-109)
F 568772 5149890 235222/235408
- 2.
RCS Dr 1k Discharge CV-104 (SV-110)
G CV-105 (SV-111)
F 568772 5149890 235226
- 3.
RCS Dr Ik Vent CV-106 (SV-1 12)
G CV-107 (SV-113)
F 568772 5149890 235226
- 4.
N2 to RCS Drain Tank CV-536 F
CV-535 G
568772 64359/64360 235226
- 5. ORMS 1211/1212 Sphere CV-147 (SV-1212-7)
G SV-1212-9 F
568782 5149890 235225 Sanple Supply
- 6. ORMS 1211/1212 Sphere CV-146 (SV-1212-6)
G SV-1212-8 F
568782 5149890 235225 Sample Return
- 7. A Stm. Gen. Stm. Sanple None (SV-119)
F 568783 5159757 235228
- 8.
B Stm. Gen. Stm. Sanple None (SV-120)
F 568783 5159757 235228
- 9. C Stm. Gen. Stm. Sanple None (SV-121)
F 568783 5159757 235228
- 10.
A Stn. Gen. Blowdown Sanple None (SV-123)
F 568783 5159757 235228
- 11.
B St.
Gen. Blowdown Sample None (SV-122)
F 568783 5159757 235228
- 12.
C Stm. Gen. Blowdown Sanple None (SV-124)
F 568783 5159757 235228 "1-,
Service Water to Sphere CV-537 F
CV-115 (SV-126)
G 568776 64358/64360 235220/235223
- 14. >Servce Air to Sphere Check Valve CV-123 (SV-125)
F 568780 5159757 235409
- 15.
SI Loop C Vent SV-702B F
SV-702A G
568769 5159757/5159756 235230/235224
- 16.
SI Loop B Vent SV-702D F
SV-702C G
568769 5159757/5159756 235230/235224
- 17.
PRT Gas Sample CV-948**
F CV-949 (SV-949)
G 568770 455463/5159756 235227
- 18.
RC Loop Sanple (CV-955, CV-956, CV-962)**
F CV-957 (SV-957)
G 568770 455463/5159756 235227
- 19.
Pressurizer Sanple (CV-951, CV953)**
F CV-992 (SV-992)
G 568770 455463/5149890 235227
- 20.
Sphere Purge Air Supply POV-9 (SV-29)
F 568782 5149857 235234
- 21.
Sphere Purge Air Cutlet POV-10 (SV-30)
F 568782 5149857 235234
- 22.
Sphere Equalizing/Sphere Vent CV-116 (SV-27)
G CV-10 (SV-28)
F 568782 5149857 235233/235235 Inst. Air Vent CV-40 (SV-19)
G
- 23.
Primary makeup to CV-533 F
CV-534 G
568766 64358/64360 235221/235229 Press Rlf. Tk
- 24.
Cont. Cooling Cut CV-515**
F 568776 64371
- 25.
Cont. Cooling In CV-516**
G 568776 64364
- 26.
N2 Supply to Press Rlf 1k.
CV-532**
G Check Valve 568766 64360
- 27.
Letdown CV-525**
F CV-526**
G 568767 64362/64348
- 28.
Seal Water Return CV-527**
F CV-528**
G 568767 64362/64348 Foxboro Logic Nest C aligned to F power train, Nest D is aligned to G power train.
These valves do not receive an autanatic containment isolation signal.
They are operated by remote hand switch (RMS).
npr
TABLE 3 CONTAINENT I3LATION VALVE SUHARY LOGIC DESCRIPTION INSIDE SRERE ALIGWENT OUSIDE SPHERE ALIGNMENT*
P&ID ELEBENTARY DIAGRAM DIAGRAM
- 1.
Sphere Sump Discharge CV-102 (SV-108)
G CV-103 (SV-109)
F 568772 5149890 235222/235408
- 2.
RCS Dr Ik Discharge CV-104 (SV-110)
G CV-105 (SV-111)
F 568772 5149890 235226
- 3.
RCS Dr Ik Vent CV-106 (SV-112)
G CV-107 (SV-113)
F 568772 5149890 235226
- 4.
N2 to RCS Drain Tank CV-536 F
CV-535 G
568772 64359/64360 235226
- 5.
ORMS 1211/1212 Sphere CV-147 (SV-1212-7)
G SV-1212-9 F
568782 5149890 235225 Sanple Supply
- 6.
ORMS 1211/1212 Sphere CV-146 (SV-1212-6)
G SV-1212-8 F
568782 5149890 235225 Sanple Return
- 7.
A Stm. Gen. Stn. Sanple None (SV-119)
F 568783 5159757 235228
- 8.
B Stm. Gen. Stm. Sanple None (SV-120)
F 568783 5159757 235228
- 9.
C Stm. Gen. Stan. Sanple None (SV-121)
F 568783 5159757 235228
- 10.
A Sta. Gen. Blowdomn Sanple None (SV-123)
F 568783 5159757 235228
- 11.
B Stmn. Gen. Blculawn Sanple None (SV-122)
F 568783 5159757 235228
- 12.
C Stim. Gen. Blowdow Sanple None (SV-124)
F 568783 5159757 235228
- 13.
Service Water to Sphere CV-537 F
CV-115 (SV-126)
G 568776 64358/64360 235220/235223
- 14.
Service Air to Sere Chedc Valve CV-123 (SV-125)
F 568780 5159757 235409
- 15.
SI Loop C Vent SV-702B F
SV-702A G
568769 5159757/5159756 235230/235224
- 16.
SI Loop B Vent SV-702D F
SV-702C G
568769 5159757/5159756 235230/235224
- 17.
PRT Gas Sanple CV-948*n F
CV-949 (SV-949)
G 568770 455463/51597%
235227
- 18.
RC Loop Sanple (CV-955, CV-956, CV-962)**
F CV-957 (SV-957)
G 568770 455463/5159756 235227
- 19.
Pressurizer Sanple (CV-951.
CV953)'
F CV-992 (SV-992)
G 568770 455463/5149890 235227
- 20.
Sphere Purge Air Supply POV-9 (SV-29)
F 568782 5149857 235234
- 21.
Sphere Purge Air Cutlet
-OV-10 (SV-30)
F 568782 5149857 235234
- 22.
Sphere Flualizing/Sphere Vent CV-116 (SV-27)
G CV-10 (SV-28)
F 568782 5149857 235233/235235 Inst. Air Vent CV-40 (SV-19)
G
- 23.
Primary makeup to CV-533 F
CV-534 G
568766 64358/64360 235221/235229 Press Rif. Tk
- 24.
Cont. Cooling Out CV-515' F
568776 64371
- 25.
Cont. Coolirg In CV-16' G
568776 64364
- 26.
N2 Supply to Press Rif 1k.
CV-532*
G Check Valve 568766 64360
- 27.
Letdown CV-525" F
CV-526#*
G 568767 64362/64348
- 28.
Seal Water Return CV-527*
F CV-528' G
568767 64362/64348 Foxboro gic Nest C aligned to F power train, Nest D is aligned to G power train.
These valves do not receive an autanatic contairnment isolation signal.
They are operated by remote hand switch (RMS).
npr
TABLE 4. LIST OF ENCLOSED DRAWINGS P&ID's 568725-15 with CCN's 3, 4, 5, 6 568767-21 with CCN 15 568768-15 with CCN's 13, 14 568769-15 with CCN's 20, 22, 23 568770-12 568772-22 568775-23 with CCN's 8, 9, 10 568776-21 with CCN's 18, 19, 20, 21, 23, 24 568779-22 568780-18 with CCN's 9, 10, 11, 12, 13, 14 568782-19 568783-11 5154097-4 with CCN 14 Elementary Drawings 63718-2 63719-1 64348-3 64358-3 64359-4 64360-4 64362-5 64363-4 64364-3 64369-3 64371-4 64374-4 449408-6 with CCN's 7, 8 450516-1 455116-4 455368-6 455369-2 455370-2 455371-2 455372-7 455373-5 455374-5 455375-5 455378-2 455379-3 455448-6 455449-2 455459-1 455460-3 455463-3
7e S
-2 455513-4 455514-2 455516-8 455561-3 568252-20 5130359-1 5149454-0 5149630-5 5149857-3 5149858-6 5149919-3 5149924-1 5149927-1 5149970-3 5149971-3 5150334-3 5150336-4 with CCN's 6, 8, 9 5150345-2 5150349-2 5150353-1 5150354-3 5150623-2 5150626-6 5150627-3 5150874-9 5150875-9 5150882-2 with CCN 3 5150884-2 5151028-5 5151796-1 5151820-1 5153972-0 Sheet 1 5153972-0 Sheet 2 5154354-0 with CCN 1 5159757-0 N-1542 Sheet 1 Rev. 9 N-1542 Sheet 54 N-1542 Sheet 57 Logic Diagrams 235220-1 235221-1 235222-1 235223-1 235224-1
-3 235225-1 235226-1 235227-1 235228-1 235229-1 235230-1 235231-1 235233-1 235234-1 235235-1 235405-0 235408-1 235409-1 451355-0 with CCN 2 One Line Diagrams 5102162-12 5102163-11 5102165-30 5102166-26 with CCN 17 5102167-23 5102168-14 with CCN 10 5102169-32 with CCN 21 5102170-26 with CCN 15 5102171-21 5102173-18 5102174-31 5146828-20 5148062-3 with CCN 13 5148063-3 with CCN 11 5149348-7 with CCN 13