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REQUIRED SIGNAGE <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 1 <br />OPERATING CURRENT: 8 3 ADC <br />OPERATING VOLTAGE: 331.1 VDC <br />MAXIMUM SYSTEM VOLTAGE: 441.2i VDC <br />MAXIMUM SYSTEM CURRENT: 11.1 ADC <br />MPPT 2 <br />OPERATING CURRENT: 8.3 ADC <br />OPERATING VOLTAGE: 331.1 VDC <br />MAXIMUM SYSTEM VOLTAGE: 441.2 VDC <br />MAXIMUM SYSTEM CURRENT: 11.1 ADC <br />3. LABEL FOR JUNCTION BOX: 690.35(F) <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 />SITE PLACARD <br />CAUTION <br />POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE <br />FOLLOWING SOURCES\NITH DISCONNECTS LOCATED AS SHOWN: <br />9 7//fi> f <br />€ <br />- CD <br />400 <br />PART# DESCRIPTION .................. 4 <br />1 MAIN SERVICE PANEL (30 <br />e <br />2 SOLAR AC DISCONNECT B0 <br />3 INVERTER <br />4 SOLAR PANELS <br />5. LABEL FOR SOLAR AC DISCONNECT: 690.14(C)(2) <br />SOLAR AC DISCONNECT <br />6. LABEL FOR INSIDEMAIN SERVICE PANEL: 690.64(B)(7) <br />WARNING! <br />INVERTER O.UTPUT CONNECTION <br />DO NOT RELOCATE THIS OVERCURRENT DEVICE <br />FIRE DEPARTMENT REQUIRED SIGNAGE <br />7. 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 />AT THE MAIN SERVICE DISCONNECT PROVIDE A SIGN <br />WITH THE FOLLOWING WORDING: <br />CAUTION <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 />MARKING SHALL BE PLACED EVERY 10 FEET AT TURNS <br />AND ABOVE AND/OR BELOW PENETRATIONS ANDi AT <br />ALL PV COMBINERAND JUNCTION BOXES. <br />ELECTRICAL CALCULATIONS MPPT 1 <br />OPERATION VOLTAGE= 11 X 30.1= 331.1 V <br />OPERATING CURRENT= 1 X 8.3= 8.3 A <br />MAX PV VOLTAGE & CURRENT CALC'S MPPT 1 <br />RECORD LOW TEMP.(°C): 2 <br />TEMP.COEFF (%/°C): -0.0034 <br />OPEN CIRCUIT VOLTAGE(Voc): 37.2 V <br />MAX PV SYSTEM VOLTAGE (PER NEC 690.7) <br />(((37.2 x-.0034)*(-(2542)))xll)+(37.2xll)= 441.2 V <br />MAX PV CONTINUOUS CURRENT PER NEC 690.8(A)(1): <br />1.25xlscx#STRINGS <br />1.25*8.87xl=11.lA <br />ELECTRICAL CALCULATIONS MPPT 2 <br />OPERATION VOLTAGE= 11 X 30.1= 331.1 V <br />OPERATING CURRENT= 1 X 8.3= 8.3 A <br />MAX PV VOLTAGE & CURRENT CALC'S MPPT 2 <br />RECORD LOWTEMP.(°C): 2 <br />TEMP.COEFF (%/°C): -0.0034 01 <br />OPEN CIRCUIT VOLTAGE(Voc): 37.2 V -01 <br />MAX PV SYSTEM VOLTAGE (PER NEC 690.7)g 22 <br />(((37.2 x-.0034)*(-(25-(2)))xll)+(37.2xll)= 441.2 V :55100MAX PV CONTINUOUS CURRENT PER NEC 690.8(A)(1):-U) r <br />0 1-r' 01.25 x Isc x # STRINGS 0.1.LI <br />1.25 x 8.87 x1= 11.1 A 791-I0 0=<5HPu,< <br />DC CONDUCTOR AMPACITY CALC'S 60/3. <br /># OF STRINGS PER INVERTER: 2 r LUC <br />EXPECTED WIRE TEMP. (°C): 53 Z Z <i' <br />01081TEMP CORRECTION PER TABLE 310.16: 0.76 O U) a 4- 1 <br /># OF CURRENT CARRYING CONDUCTORS: 4 <br />CIRCUIT FILL CORRECTION PER TABLE 310.15(B)(2)(a): 0.8 <br />CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 <br />REQUIRED'CIRCUIT CONDUCTOR AMPACITY - <br />PER NEC 690.8 (A&B) (FROM PANELS TO INVERTER):O 5 <br />1.25 x 1.25 x Isc x # PER STRING <br />1.25 x 1.25 x 8.87 x1 = 13.9 A E[ 1§' <br />E L <br />LO <br />0DERATED AMPACITY OF CIRCUIT CONDUCTOR »h. <br />PER NEC TABLE 310.16 -116 1TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR. & <br />< -1 <br />PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY M 00 <br />00 <br />PER NEC TABLE 310.16 <br />0.76 x 0.8 x 40 = 24.3A > 13.9A O.K. <br />AC CONDUCTOR AMPACITY CALC'S <br /># OF INVERTE:R: 1 <br />EXPECTED WIRE TEMP. (°C): 31 011- <br />TEMP. CORR. PER NEC TABLE 310.16: .96 C: 0 <br />U.1 <br />CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 .N E w <br /># OF CURRENT CARRYING CONDUCTORS: 3 W>6 <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1 1 19 LU <br />Zi LLI< <br />CIRCUIT CONDUCTOR AMPACITY: 40A -09-2 <br />1- <br />REQUIRED CIRCUIT CONDUCTOR AMPACITY OZEZ <br />PER NEC TABLE 690.8(B):,§M:1 <br />1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER <br />1.25*23 x 1=28.8A <br />ZDERATED AMPACITY OF CIRCUIT CONDUCTOR o <br />PER NEC TABLE 310.16 T <br />TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR.··D-e <br />PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY 2102 <br />2 4 QPER NEC TABLE 310.16 1- O U) <br />0.96 xlx40= 38.4A > 28.8A O.K. <br />30A PV BREAKER WILL BE PROVIDED <br />U) <br />BACKFED 120% RULE 83 <br />NEC 690.649(B)(2) AND NEC 690.64.(B)(7)ON <br />CN C <br />120% x BUS FU\TING>=MAIN BREAKER + PV BREAKER 600 <br />120% x 125A>= 100A+PV BREAKER all- 3> <br />PV BREAKER <= 50A 20 <br />30A<= 50A O.K. <br />PV 4 <br />(/ 141 WOJ--0841 <br />onch, vil ¤£O£ I T: 714-676-8888