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CUSTOMER INFORMATION <br />NAME: KEVIN COTTAM <br />PROJECT ID AUR-73344 <br />DATE 3/14/2023 <br />CREATED BY SKV <br />SIGNATURE <br />CONTRACTOR INFORMATION <br />COORDINATES: 33.766260, <br />-117.845314 <br />ADDRESS: 2253 NORTH LYON <br />STREET, SANTA ANA, CA 92705 <br />AMERICAN SOLAR ADVANTAGE <br />ADDRESS: 13348 MONTE VISTA AVE, <br />CHINO, CA 91710 <br />LICENSE NUMBER: C-10 1009565 <br />2.400kW DC / 1.740kW AC / 2.163kW <br />CEC AC ROOF MOUNT PV SYSTEM <br />APN: 396-05-609 <br />PV-4.1 <br />ELECTRICAL CALCULATIONS <br />ALLOWABLE BACKFEED: <br />MAIN PANEL RATING = 225 A <br />MAIN BREAKER RATING = 200 A <br />120% RULE: = (MAIN PANEL RATING * 1.2) - MAIN BREAKER RATING <br />= (225 A*1.2)-200 A <br />= 270 A - 200 A <br />= 70 A <br />ALLOWABLE BACKFEED = 70 A <br />INVERTER OVERCURRENT PROTECTION: <br />INVERTER OVERCURRENT PROTECTION = MICROINVERTER O/P CURRENT * <br /> # OF MICROINVERTERS * CONTINUOUS LOAD(1.25) <br />= ((1.21 * 6 )+(1.00 * 20 )) A *1.25 <br />= (7.26 + 20) A * 1.25 <br />= 27.26 A * 1.25 <br />= 34.07 A <br />PV OVERCURRENT PROTECTION = 50 A ≥ 34.07 A <br />ALLOWABLE BACKFEED 70 A ≥ 50 A PV OVERCURRENT PROTECTION <br />THE DESIGNED INTERCONNECTION MEETS THE 705.12(B)(3)(2) REQUIREMENTS. <br />OCPD CALCULATION <br />TAG 1: (AC) <br />REQUIRED CONDUCTOR AMPACITY(1.21 x 6 x 1.25) <br />CORRECTED AMPACITY CALCULATION(0.94 x 1 x 25) <br />TAG 2: (AC) <br />REQUIRED CONDUCTOR AMPACITY(1.21 x 6 x 1.25) <br />CORRECTED AMPACITY CALCULATION(0.94 x 1 x 35) <br />TAG 3: (AC) <br />REQUIRED CONDUCTOR AMPACITY(1.21 x 6 x1.25) <br />CORRECTED AMPACITY CALCULATION(0.94 x 1 x 35) <br />TAG 4: (AC) <br />REQUIRED CONDUCTOR AMPACITY(27.26 x 1 x 1.25) <br />CORRECTED AMPACITY CALCULATION(0.94 x 1 x 50) <br /> <br />= 9.07 A <br />= 23.50 A <br />= 9.07 A <br />= 32.90 A <br />= 9.07 A <br />= 32.90 A <br />= 34.07 A <br />= 47.00 A <br />9.07 A < 23.50 A (#12 AWG ENPHASE Q CABLE) <br />9.07 A < 32.90 A (3/4"EMT, #10 AWG THHN/THWN-2, Cu ) <br /> 9.07 A < 32.90 A (3/4"EMT, #10 AWG THHN/THWN-2, Cu ) <br /> 34.07 A < 47.00 A (3/4"EMT, #8 AWG THHN/THWN-2, Cu ) <br />WIRE SIZE CALCULATIONS <br />AMBIENT TEMPERATURE @ 31°C <br />ELECTRICAL NOTES <br />1. CONDUCTORS EXPOSED TO SUNLIGHT SHALL BE LISTED AS SUNLIGHT RESISTANT PER CEC <br />310.10(D). <br />2. CONDUCTORS EXPOSED TO WET LOCATIONS SHALL BE SUITABLE FOR USE IN WET <br />LOCATIONS PER CEC 310.10(C). <br />3. MAXIMUM DC/AC VOLTAGE DROP SHALL BE NO MORE THAN 2%. <br />4. ALL CONDUCTORS SHALL BE IN CONDUIT UNLESS OTHERWISE NOTED. <br />5. BREAKER/FUSE SIZES PER CEC 240. <br />6. AC EQUIPMENT GROUNDING CONDUCTOR SIZED PER CEC 250.122. <br />7. AMBIENT TEMPERATURE CORRECTION FACTOR IS BASED ON CEC 310.15(B)(1). <br />8. MAX. SYSTEM VOLTAGE COEFFICIENT IS FROM MODULE MANUFACTURER OR CEC 690.7 <br />WHEN MANUFACTURER COEFFICIENT UNAVAILABLE. <br />9. CONDUCTORS ARE SIZED PER CEC TABLE 310.16. <br />10. CONDUIT SHALL BE INSTALLED MINIMUM 7/8" FROM ROOF SURFACE. <br />AC WIRE SIZING CALCULATIONS BASED ON FOLLOWING EQUATIONS <br />REQUIRED CONDUCTOR AMPACITY: <br /> INVERTER OUTPUT CURRENT * #OF INVERTERS = MAX CURRENT PER 690.8(A)(1)(e) * 125% <br />= MAX CURRENT PER 690.8(B)(1) <br />CORRECTED AMPACITY CALCULATIONS: <br />DERATED CONDUCTOR AMPACITY PER 690.8(B)(2) = AMPACITY * TEMPERATURE DERATE <br /> FACTOR * CONDUIT FILL DERATE <br />DERATED CONDUCTOR AMPACITY CHECK : MAX CURRENT PER 690.8(B)(1) < <br /> DERATED CONDUCTOR AMPACITY <br />This item has been digitally <br />signed and sealed on <br />03/16/2023 <br />2253 N Lyon St <br />06/06/23