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BACKUP LOADS <br />LOAD BREAKER RATING <br />(AMPS)LABEL DEMAND LOAD(VA) <br />1 20A-1P GARAGE OUTLETS 1500 VA <br />2 20A-1P LIVING LIGHTS 1500 VA <br />3 20A-1P LIVING OUTLETS 1500 VA <br />4 20A-1P BEDROOM 1 OUTLETS 1500 VA <br />5 20A-1P BEDROOM 1 LIGHTS 1500 VA <br />6 20A-1P BEDROOM 2 OUTLETS 1500 VA <br />7 20A-1P BEDROOM 2 LIGHTS 1500 VA <br />8 20A-1P KITCHEN OUTLETS 1500 VA <br />9 20A-1P KITCHEN LIGHTS 1500 VA <br />10 20A-1P DISHWASHER 1500 VA <br />11 20A-1P REFRIDGERATOR 1500 VA <br />12 15A-1P BATH 1 LIGHTS 1500 VA <br />13 15A-1P BATH 1 OUTLETS 1500 VA <br />14 15A-1P BATH 2 LIGHTS 1500 VA <br />15 15A-1P BATH 2 OUTLETS 1500 VA <br />16 15A-1P GARAGE LIGHTS 1500 VA <br />17 30A-2P DRYER 5760 VA <br />18 50A-2P AC 4704 VA <br />BACKUP LOAD CALCS <br />PV-4.2 <br />BACKUP LOAD CALCS <br />#ESTAMP <br />PAGE <br />REV: B 10/25/2024 <br />2500 WHITE RD. SUITE A, IRVINE CA 92614 <br />PHONE 805.540.7603 <br />FAX 949.215.7778 <br />EFREN LUMBRERAS <br />2100 E WELLINGTON AVE, <br />SANTA ANA, CA, 92701 <br />PROJECT NUMBER: <br /> 109R-100LUMB <br />SHEET <br />DESIGNER: <br />HIMANSHU VASHIST <br />CUSTOMER RESIDENCE: <br />TEL. (949) 763-0025 <br />APN: 400-153-29 <br />GILBERT CORREIA, C10, C46 <br />CA CL #750184 <br />(415) 580-6920 ex3 <br />Template_version_v5_2024.02.28 <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 />(9600 VA)/ 240V = 19.6 A PER CEC 2022 ARTICLE 690.10 OR NEC 2020 ARTICLE 710.15. <br />THE MAXIMUM CURRENT FOR ALL LARGE APPLIANCES LOADS IS 40A. <br />(1500 VA)/ 120V = 12.5 A PER CEC 2022 ARTICLE 690.10 OR NEC 2020 ARTICLE 710.15. <br />THE MAXIMUM CURRENT FOR ALL SMALL APPLIANCES LOADS IS 12.5A. <br />(MAX LOADS OUTPUT) X (CONTINUOUS LOADS) = <br />19.6 A X 1.25 = 24.5A; <br />BACKED UP LOADS PANEL BREAKER = 70A <br />24.5 A < 70A <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 LOADS OUTPUT) X (CONTINUOUS LOAD)[210.19(A)(1)] = <br />19.6 A X 1.25 = 24.5A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP)[TABLE 310.15(B)(1)] X (CONDUIT FILL)[TABLE 310.15(C)(1)] X <br />(CONDUCTOR AMPACITY)[TABLE 310.16] = <br />0.91 X 1 X 55A = 50.05A <br />TERMINAL RATING[110.14(C)] = <br />8 AWG, 75°C RATED = 50A <br />50A < 50.05A → TERMINAL RATING GOVERNS CONDUCTOR SIZING. <br />24.5A ≤ 50A → 8 AWG AMPACITY OK <br />THEREFORE 8 AWG IS SUFFICIENT. <br />AC WIRE SIZING FOR BACKED UP LOADS PANEL: <br />MAX AC OUTPUT CURRENT = (MAX LOADS OUTPUT) X (CONTINUOUS LOAD)[210.19(A)(1)] = <br />12.5 A X 1.25 = 15.625A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP)[TABLE 310.15(B)(1)] X (CONDUIT FILL)[TABLE 310.15(C)(1)] X <br />(CONDUCTOR AMPACITY)[TABLE 310.16] = <br />0.91 X 1 X 40A = 36.4A <br />TERMINAL RATING[110.14(C)] = <br />12 AWG, 75°C RATED = 35A <br />35A < 36.4A → TERMINAL RATING GOVERNS CONDUCTOR SIZING. <br />15.625A < 35A → 12 AWG AMPACITY OK <br />THEREFORE 12 AWG IS SUFFICIENT. <br /> <br /> <br />B <br />2100 E Wellington <br />Ave11/18/2024