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SCOPE OF WORK: <br />INSTALL (18) APTOS DNA-120-BF10-440W SOLAR ELECTRIC MODULES AND <br />(18) SOLAREDGE S440 DC POWER OPTIMIZERS ON THE EXISTING 1ST STORY TAR & <br />GRAVEL ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, <br />CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) SOLAREDGE ENERGY HUB <br />SE7600H-US INVERTER WITH INTEGRATED DC DISCONNECT, (1) LG CHEM RESU 16H <br />PRIME BATTERY, (1) AC DISCONNECT, AND INSTALL OCPD IN MAIN SERVICE PANEL. <br />HOMEOWNER: LESLIE YAM <br />PH: 714.856.1988 <br />ADDRESS: 4021 MARY CIRCLE <br />SANTA ANA, CA 92703 <br />DATE: 7/30/24 <br />ING ELECTRIC INC <br />1451 DOMIGUEZ RANCH ROAD <br />CORONA, CA 92882 <br />PH: 951.399.2555 NORAN ING C10 - 1048140 <br />SHEET <br />NOTICE: <br />ANY CHANGES TO OR USES OF THESE <br />DOCUMENTS/DRAWINGS WITHOUT THE <br />WRITTEN CONSENT OF JENNIFER KEMME OR <br />SCOTT HARRIS ARE STRICTLY PROHIBITED. <br />6 OF 6 <br />PLANS PREPARED BY: <br />JENNIFER KEMME <br />PH: 909.748.1300 <br />SYSTEM CALCULATIONS: <br />MODULE POWER = 440 W <br />NUMBER OF MODULES IN LONGEST STRING = 9 <br />(9) 440 W = 3960 W <br />OPTIMIZER MAX POWER PER STRING = 6000 W <br />3960 W < 6000 W, OK <br />OPERATING CURRENT = <br />POWER RATING/OPERATING VOLTAGE = <br />3960 W/400 V = 9.90 A <br />OPTIMIZER TO INVERTER TARGET <br />VOLTAGE/OPERATING VOLTAGE = 400 V <br />MAX SYSTEM VOLTAGE (Voc) CONTROLLED BY <br />INVERTER = 480 V <br />SHORT-CIRCUIT CURRENT (Isc) CONTROLLED BY <br />OPTIMIZER = 15.00 A <br />INVERTER MAX OUTPUT CURRENT = 32.00 A <br />32.00 A (1.25) = 40.00 A [Ic], USE 40 A BREAKER <br />MAIN SERVICE PANEL BUS RATING = 200 A <br />MAIN SERVICE PANEL MAIN OCPD = 200 A <br />200 A + 40 A SOLAR OCPD = 240 A <br />200 A BUS (1.2) = 240 A <br />240 A = 240 A, OK <br />WIRE CALCULATIONS: <br />FROM OPTIMIZERS TO INVERTER/DC DISCONNECT: <br />AMBIENT TEMPERATURE = 34°C <br />TEMPERATURE ADDER FOR CONDUIT NOT OFFSET FROM ROOF = 33°C <br />ADJUSTMENT FACTOR PER TABLE 310.15(B)(1) FOR 90°C INSULATED CONDUCTOR AT <br />34°C + 33°C = 67°C = 0.58 <br />Isc = 15.00 A <br />15.00 A/0.58 = 25.86 A <br />NUMBER OF CURRENT CARRYING CONDUCTORS IN CONDUIT = 4 <br />ADJUSTMENT FACTOR PER TABLE 310.15(C)(1) FOR CONDUIT FILL (4-6 CONDUCTORS IN <br />CONDUIT) = 0.80 <br />25.86 A/0.80 = 32.33 A <br />SELECT WIRE SIZE WITH AMPACITY GREATER THAN 32.33 A, USE 10 AWG THWN-2 COPPER <br />WIRE WITH AN AMPACITY OF 40 A <br />SELECT CONDUIT FOR (4) 10 AWG THWN-2 & (1) 8 AWG GROUND = 3 4" EMT CONDUIT <br />FROM THE INVERTER TO THE MAIN SERVICE PANEL: <br />ADJUSTMENT FACTOR PER TABLE 310.15(B)(1) FOR 90°C INSULATED CONDUCTOR AT <br />34°C = 0.96 <br />Ic = 40.00 A <br />40.00 A/0.96 = 41.67 A <br />SELECT WIRE SIZE WITH AMPACITY GREATER THAN 41.67 A, USE 8 AWG THWN-2 COPPER <br />WIRE WITH AN AMPACITY OF 55 A <br />SELECT CONDUIT FOR (3) 8 AWG THWN-2 & (1) 8 AWG GROUND = 3 4" EMT CONDUIT <br />70402PV5 <br />JENNIFER <br />KEMME <br />No: 73054 <br />Exp: 12/31/24 <br />CIVIL <br />4021 W Mary Cir <br />9/12/2024