ML23241A555

7 to Updated Final Safety Analysis Report, Chapter 7, Figure 7.3-6, Drawing 102791, Sheet 1, Rev. 16, Electrical Logic Diagram Containment Fan Coolers

ML23241A555
Person / Time
Site:	Diablo Canyon
Issue date:	05/25/2023
From:	Pacific Gas & Electric Co
To:	Office of Nuclear Reactor Regulation
Shared Package
ML23241A052	List: DCL-23-044, 7 to Updated Final Safety Analysis Report, Chapter 9, Figure 9.4-10, Drawing 512904, Revision 15, Mechanical Air Monitoring Technical Support Center and Post-Accident Sampling System Air Flow Diagrams ML23241A053 ML23241A054 ML23241A055 ML23241A056 ML23241A057 ML23241A058 ML23241A059 ML23241A060 ML23241A061 ML23241A062 ML23241A063 ML23241A064 ML23241A065 ML23241A066 ML23241A067 ML23241A068 ML23241A069 ML23241A070 ML23241A071 ML23241A072 ML23241A073 ML23241A074 ML23241A075 ML23241A076 ML23241A077 ML23241A078 ML23241A079 ML23241A080 ML23241A081 ML23241A082 ML23241A083 ML23241A084 ML23241A085 ML23241A086 ... further results
References
DCL-23-044
Download: ML23241A555 (1)

Text

2 3 4 5 6 7 8 9 10 TABLE A

~ ALARM CFCU DE"VICE DESCRIPTION SETTING HSDP ~ 22 22 2FI 2FIA SI TIMER AUTO XFR TI MER REF 2 REF 2 STOP HSDP 21 2F2 SI TIMER REF 2 CS/NEUT /ON 21 2F2A AUTO XFR TI MER REF 2 E HSDP 23 2GI SI TIMER REF 3 START 23 2GIA AUTO XFR TI MER REF 3 24 2HI SI TIMER REF 4 24 2HIA AUTO XFR TI MER REF 4 HSDP 25 2G2 SI TIMER REF 3 TRANSFER SWITCH 25 2G2A AUTO XFR TI MER REF 3 43R/LOCAL HSDP 42- 2F-1

REFERENCES:

DWG NO.

TRANSFER

~~~l~o~ O T~~~~~~~ cuT IN HI GH HI GH SPD STAR T I.LOGIC DIAGRAM SYMBOLS _ _ _ 19425 NOTE I CFCU 22 2. LOGIC DIAG 4KV "F" AUTO XFR_44I2 86 1--------------------,

42A-2F-1 3.LOGIC DIAG 4KV "G" AUTO XFR_44I297 43X-2F- I ALARM CONTROL TRANSFER CONTROL HI GH 4.LOGIC DIAG 4KV "H" AUTO XFR_44I337 RELAY MANUAL TRANSFER 5. LI ST OF ELEC DEVICES FOR 4/ 4 RESET RELA Y PROT & CONTROL - - - - - SAP

- - :K 1 - - - - - - - 42X- 2F -I 6.SCH DIAG FAN COOLERS _ _ _ 441313 CONTROL RM OVERCURRENT HIGH NOTES:

HIGH SPD D CONTROL CS/HIGH SPD 49 -2F- 1 I. CONTROL TRANSFER RELAY C. 0. SWITCH FANS 21, 23 & 24 - NORMALLY CUT IN ROOM OL/H I GH FANS 22, 25 - NORMALLY CUT OUT HIGH 21 2 ALARM WHEN NOT IN NORMAL POSIT I ON SPD STOP 2. THE PREFI X 2 REFERS TO IEEE DEVICE 212 CFCU 2 - 2 START *2 WHICH IS A TIME DELAY STARTING OR CONTROL ROOM STOP

~4. 480V AC IS REQUIRED FOR I20V CONTROL POWER.

5. SINGLE RELA YS HAVE BEEN REPLACED 42A-2 F-1 WITH TWO <2 ) RELA YS. ONE 111 RELA Y PB/STOP - - - - - - + - - - - - - - - - - - 1 1 - t X t------,t----e HI GH HAS INSTANTANEOUS CONTACTS AND ONE <I)

RELA Y HAS THE TIME DELA Y CONTACTS.

THE LOGIC IS THE SAME .

C CONTROL CONTROL RM -1 ROOM CS / ON 212 ST I LOW SPD CONTROL RM TDC I LE GEND:

START CS / LOW SPD ____ ]

43R - TRANSFERS CONTROL FROM CONTROL BOARD TO HOT SHUTDOWN PANEL <HSDP)

---+---------; A AT MCC SI K609XF I 42-2 F- I

- f~~?? 6!A~~E~~~N~;C~l~N/O OTHER LOW START - 1 SI SI GNAL (START LOW SPD ONLY! 212 CNC LOW IN ST I SPD FROM SI AU X RL Y N I_______ TDC ]I 0 2F I A N AUTO BUS TRANSFER TI MER I

4KV AUTO TRANSFER ( NOTE 2 & 5 I LO B SIGNA L ( NO SI S I ( NOTE 2 I

( START LOW SPD ON LY I 0 FR OM AUTO BU S TRANSFER AU X. RL Y. 4HFXF I I

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- f'- L A D.D. MNRU CON TAINMENT FAN COOLERS SUP SDS:

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