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BACKUP LOADS (MAIN PANEL) <br />LOAD BREAKER <br />RATING (AMPS)LABEL DEMAND <br />LOAD <br />1 15A-1P FAMILY ROOM 2880W <br />2 15A-1P KITCHEN 2880W <br />3 60A-2P AIR CONDITIONER 11520W <br />4 20A-1P FURNACE 3840W <br />5 20A-1P SPARE 3840W <br />6 20A-1P REFRIGERATOR 3840W <br />7 20A-1P PORCH PLUGS 3840W <br />8 100A-2P SUB PANEL 19200W <br />9 20A-1P LIGHTING/RECEPTACLE 3840W <br />10 20A-1P LIGHTING/RECEPTACLE 3840W <br />11 60A-2P LIGHTING/RECEPTACLE 11520W <br />12 20A-1P LIGHTING/RECEPTACLE 3840W <br />13 20A-1P LIGHTING/RECEPTACLE 3840W <br />NOTE: <br />·DEMAND LOAD CALCULATION PER CEC220.14(D) AND (I) <br />AND TABLE 220.42 <br />·MULTIWIRE BRANCH CIRCUITS SHALL BE BACKED UP IN <br />ACCORDANCE TO CEC210.4(B) <br />·SINGLE DEMAND LOAD NEVER TO EXCEED 11500W IN <br />ACCORDANCE TO CEC 710.15(A) <br />BACKUP LOADS (SUB PANEL) <br />LOAD BREAKER <br />RATING (AMPS)LABEL DEMAND <br />LOAD <br />1 20A-1P LIGHTING/RECEPTACLE 3840W <br />2 20A-1P LIGHTING/RECEPTACLE 3840W <br />3 20A-1P JUNK OVER 3840W <br />4 20A-1P DINING ROOM 3840W <br />5 20A-1P LRSW & BEYOND 3840W <br />6 20A-1P X 3840W <br />7 20A-1P KIT. PLUGS ST. SIDE 3840W <br />8 20A-1P GARBAGE DISP.3840W <br />9 20A-1P LIVING ROOM PLUGS 3840W <br />10 20A-1P DOOR BELL CABINET 3840W <br />11 20A-1P OUTDOOR OVER GAR. 3840W <br />12 20A-1P LIGHTING/RECEPTACLE 3840W <br />13 20A-1P OUTDOOR LIGHTING 3840W <br />14 20A-1P LIGHTING/RECEPTACLE 3840W <br />15 20A-1P PATIO & LAUNDRY 3840W <br />16 20A-1P FAMILY ROOM PLUGS 3840W <br />17 30A-2P LIGHTING/RECEPTACLE 5760W <br />18 40A-2P LIGHTING/RECEPTACLE 7680W <br />ELECTRICAL CALCULATIONS FOR BACKED UP LOADS <br />ALL BACKED UP LOADS ABOVE IN THE BACKED UP LOADS PANEL ARE RELOCATED FROM THE MAIN SERVICE PANEL. <br />BACKED UP LOADS CALCULATION: <br />(19200 VA)/ 120V = 160 A PER CEC 2022 ARTICLE 690.10 OR NEC 2020 ARTICLE 710.15. <br />THE MAXIMUM CURRENT FOR ALL SMALL APPLIANCES LOADS IS 12.5 A. <br />(MAX LOADS OUTPUT) X (CONTINUOUS LOADS) = <br />160A X 1.25 = 200 A; <br />BACKED UP LOADS PANEL BREAKER = 200 A <br />200 A < 200 A. <br />THEREFORE, THE AMPERAGE OF THE BACKED UP LOADS IS LESS THAN THAT OF THE OCPD. <br />AC WIRE SIZING FOR BACKED UP LOADS PANEL: <br />MAX AC OUTPUT CURRENT = (MAX BACKUP LOADS OUTPUT) X (CONTINUOUS LOAD)[210.19(A)(1)] = <br />160A X 1.25 = 200A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP)[TABLE 310.15(B)(1)] X (CONDUIT FILL)[TABLE 310.15(C)(1)] X (CONDUCTOR AMPACITY)[TABLE 310.16] = <br />1 X 1 X 30A = 30A <br />TERMINAL RATING[110.14(C)] = <br />12 AWG, , 75°C RATED = 25A <br />25A < 30A → TERMINAL RATING GOVERNS CONDUCTOR SIZING. <br />15.63A < 25A → 12 AWG AMPACITY OK <br />THEREFORE 12 AWG IS SUFFICIENT. <br />CONDUIT LENGTH OF THE BACKED UP LOADS CONDUIT [Design enters value, 6 for this job] FEET. <br />PAGE <br />REV: A 9/12/2025 <br />MARY MACALA <br />1301 MAR LES W, SANTA ANA, <br />CA, 92706 <br />PROJECT NUMBER: <br /> 109R-301MACA <br />SHEET <br />DESIGNER: <br />JOANNA MARIE PALMA <br />CUSTOMER RESIDENCE: <br />TEL. (714) 309-7546 <br />APN: 198-071-46 <br />(415) 580-6920 ex3 <br />#ESTAMP#SSTAMP <br />2500 WHITE RD. SUITE A, IRVINE CA 92614 <br />PHONE 805.540.7603 <br />FAX 949.215.7778 <br />CA CL #750184 <br />ELECTRICAL CALCS <br />PV-4.2