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REQUIRED SIGNAGE <br />THE FOLLOWING SIGNAGE MUST HAVE A MINIMUM <br />OF 3/8" HIGH LETTERING, IN ARIAL FONT(NON-BOLD), <br />WITH CAPITAL LETTERS, WHITE ON RED BACKGROUND <br />AND ON A REFLECTIVE, WEATHER RESISTANT MATERIAL. <br />FIRE DEPARTMENT REQUIRED SIGNAGE <br />7.AT THE MAIN SERVICE DISCONNECT PROVIDE A SIGN <br />WITH THE FOLLOWING WORDING: <br />CAUTION <br />DERATED AMPACITY OF CIRCUIT CONDUCTOR <br />PER NEC TABLE 310.16 <br />TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR. <br />PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY <br />PER NEC TABLE 310.16 <br />0.76 x 0.8 x 40 = 24.3A > 13.5A O.K. <br />1. LABEL FOR SOLAR DC DISCONNECT: 690.14(C)(2) <br />SOLAR DC DISCONNECT <br />2. LABEL FOR SOLAR DC DISCONNECT: 690:53 <br />MPPT <br />OPERATING CURRENT: 16.9 ADC <br />OPERATING VOLTAGE: 178.0 VDC <br />MAXIMUM SYSTEM VOLTAGE: 246.4 VDC <br />MAXIMUM SYSTEM CURRENT: 21.6 ADC <br />3. LABEL FOR JUNCTION BOX: 690.35(F) <br />SOLAR ELECTRIC SYSTEM CONNECTED <br />THE SIGN SHOULD BE PLACED ON THE OUTSIDE COVER <br />IF THE MAIN SERVICE DISCONNECT IS OPERABLE WITH <br />THE SERVICE PANEL CLOSED <br />8. ON ALL INVERTER AND EXTERIOR PV CONDUIT, <br />RACEWAYS, ENCLOSURES, CABLE ASSEMBLIES AND <br />JUNCTION BOXES PROVIDE A SIGN WITH THE FOLLOWING <br />WORDING: <br />CAUTION <br />SOLAR CIRCUIT <br />AC CONDUCTOR AMPACITY CALC'S 25 <br />U) ac <br /># OF INVERTER: 1 0- LLDREXPECTED WIRE TEMP. (°C): 31 d200020.TEMP. CORR. PER NEC TABLE 310.16: 0.96 bE#CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 5 18 5 <br /># OF CURRENT CARRYING CONDUCTORS: 3 1- m <br />Zz< <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1 O DI <br />OU)C <br />CIRCUIT CONDUCTOR AMPACITY: 40A <br />REQUIRED CIRCUIT CONDUCTOR AMPACITY <br />PER NEC TABLE 690.80): C <br />1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER <br />1.25 x 14.5 x1= 18.lA r <br />Cli <br />WARNING! <br />ELECTRIC SHOCK HAZARD <br />IF A GROUND FAULT IS INDICATED, NORMALLY <br />GROUNDED CONDUCTORS MAY BE UNGROUNDED <br />AND ENERGIZED <br />4. PROVIDE A PLACARD WITH THE FOLLOWING <br />WORDING IN 1/4" HIGH LETTERING <br />LABEL FOR SOLAR AC DISCONNECT: 690.17(4) <br />WARNING! <br />ELECTRICAL SHOCK HAZARD <br />DO NOT TOUCH TERMINALS. TERMINALS ON BOTH <br />THE LINE AND LOAD SIDES MAY BE ENERGIZED IN <br />THE OPEN POSITION <br />5. LABEL FOR SOLAR AC DISCONNECT: 690.14(C)(2) <br />SOLAR AC DISCONNECT <br />6. LABEL FOR INSIDE MAIN SERVICE PANEL POINTING <br />MARKING SHALL BE PLACED EVERY 10 FEET AT TURNS <br />AND ABOVE AND/ OR BELOW PENETRATIONS AND AT <br />ALL PV COMBINER AND JUNCTION BOXES. <br />ELECTRICAL CALCULATIONS <br />OPERATION VOLTAGE= 5 X 35.6= 178.0 V <br />OPERATING CURRENT= 2 X 8.44= 16.9 A <br />MAX PV VOLTAGE & CURRENT CALC'S <br />RECORD LOW TEMP.(°C):.2 <br />TEMP.COEFF (V/°C): -0.0035 <br />OPEN CIRCUIT VOLTAGE(Voc): 45.6 <br />MAX PV SYSTEM VOLTAGE (PER NEC 690.7) <br />5x {45.6+[(2-25) x (-0.0035x45.6)} = 246.4 V <br />MAX PV CONTINUOUS CURRENT PER NEC 690.8(A)(1): <br />1.25 x Isc x # STRINGS <br />1.25 x 8.65 x2= 21.6 A <br />DERATED AMPACITY OF CIRCUIT CONDUCTOR - <br />PER NEC TABLE 310.16 <br />TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR.m g <br />PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY * <br />PER NEC TABLE 310.16 . 2 0<J <br />0.96 xlx40= 38.4A >18.lA O.K.00 <br />20A PV BREAKER WILL BE PROVIDED <br />BACKFED 120% RULE <br />NEC 690.64(B)(2) AND NEC 690.64(B)(7) <br />120% x BUS RATING>=MAIN BREAKER + PV BREAKER <br />120% x 100A>=100A+PV BREAKER <br />PV BREAKER <= 20A W & <br />20A<= 20A O.K.=El k <br />3C£< <br />OOUSITE PLACARD 66!93¤ <br />OOM <br />CAUTION 0- < (N <br />POWER TO THIS BUILDING IS ALSO SUPPLIED <br />FROM THE FOLLOWING SOURCES WITH <br />DISCONNECTS LOCATED AS SHOWN:Z <br />AT OR AT PV BREAKER: 690.64(B)(7) <br />WARNING! <br />INVERTER OUTPUT CONNECTION <br />DO NOT RELOCATE THIS OVERCURRENT DEVICE <br />W <br /> At- -X--0 liu, S:DC CONDUCTOR AMPACITY CALC'S 11 [E .D<# OF STRINGS PER INVERTER: 2 .U<GOZ70tigEXPECTED WIRE TEMP. (°C): 53 0 1- 0 0 <br />UJ <br />TEMP CORRECTION PER TABLE 310.16: 0.76 1 1/*a d o <br /># OF CURRENT CARRYING CONDUCTORS: 4 CD <br />0 <br />CIRCUIT FILL CORRECTION PER TABLE 310.15(8*2)(a): 0.8 0 <br />CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 ga <br />REQUIRED CIRCUIT CONDUCTOR AMPACITY 1. INVERTER 000Z W 9 <br />PER NEC 690.8 (A&B) (FROM PANELS TO INVERTER):2. SOLAR AC DISCONNECT 001-> <br />O<W <br />1.25 x 1.25 x Isc x # PER STRING 3. MAIN SERVICE PANEL -, 0 [£ <br />1.25 x 1.25 x 8.65 x1= 13.5 A 4. SOLAR PANELS <br />PV 4 <br />.. <br />..