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BACKUP LOADS <br />LOAD BREAKER RATING <br />(AMPS)LABEL DEMAND <br />LOAD <br />1 15A-1P OUTDOOR LIGHTS 1500 W <br />2 15A-1P BATHROOM/ LIVING <br />ROOM LIGHTS 1500 W <br />3 20A-1P LIVING ROOM OUTLETS 1500 W <br />4 20A-1P BEDROOM LIGHTS 1500 W <br />5 20A-1P KITCHEN OUTLETS 1500 W <br />6 20A-1P BEDROOM 1 OUTLETS 1500 W <br />7 20A-1P BEDROOM 2 OUTLETS 1500 W <br />8 20A-1P BEDROOM 3 OUTLETS 1500 W <br />9 20A-1P BEDROOM 4 OUTLETS <br />10 20A-1P MICROWAVE 1500 W <br />11 30A-2P OVEN 5760 W <br />12 50A-2P AC UNIT 9600 W <br />1500 W <br />ELECTRICAL CALCULATIONS FOR BACKED UP LOADS <br />PAGE <br />REV: B 9/15/2025 <br />JUAN BELTRAN <br />2502 S ARTESIA ST, SANTA ANA, <br />CA, 92704 <br />PROJECT NUMBER: <br /> 109R-502BELT <br />SHEET <br />DESIGNER: <br />PRAVEEN <br />CUSTOMER RESIDENCE: <br />TEL. (657) 272-3868 <br />APN: 412-391-11 <br />(415) 580-6920 ex3 <br />PV-4.3 <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 />GILBERT CORREIA, C10, C46 <br />BACKUP LOADS CALCS <br />ALL BACKED UP LOADS ABOVE IN THE BACKED UP LOADS PANEL ARE RELOCATED <br />FROM THE MAIN SERVICE PANEL. <br />BACKED UP LOADS CALCULATION: <br />(9600 VA)/ 240V = 40 A PER CEC 2022 ARTICLE 690.10 OR NEC 2020 ARTICLE 710.15. <br />THE MAXIMUM CURRENT FOR ALL LARGE APPLIANCES LOADS IS 32 A. <br />(MAX LOADS OUTPUT) X (CONTINUOUS LOADS) = <br />40A X 1.25 = 50 A; <br />BACKED UP LOADS PANEL BREAKER = 100 A <br />50 A < 100 A. <br />THEREFORE, THE AMPERAGE OF THE BACKED UP LOADS IS LESS THAN THAT OF THE <br />OCPD. <br />AC WIRE SIZING FOR BACKED UP LOADS PANEL: <br />MAX AC OUTPUT CURRENT = (MAX BACKUP LOADS OUTPUT) X (CONTINUOUS <br />LOAD)[210.19(A)(1)] = <br />40A X 1.25 = 50A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP)[TABLE 310.15(B)(1)] X (CONDUIT <br />FILL)[TABLE 310.15(C)(1)] X (CONDUCTOR AMPACITY)[TABLE 310.16] = <br />0.91 X 0.5 X 95A = 43.22A <br />TERMINAL RATING[110.14(C)] = <br />8 AWG, 75°C RATED = 55A 43.22A < 55A → TERMINAL RATING GOVERNS CONDUCTOR <br />SIZING. 50A < 55A → 8 AWG AMPACITY OK THEREFORE 8 AWG IS SUFFICIENT. <br />THEREFORE 4 AWG IS SUFFICIENT. <br />CONDUIT LENGTH OF THE BACKED UP LOADS CONDUIT [1] FEET.  <br />B <br />B