10180813_2118 W. 12TH - Plan (2)

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REQUIRED SIGNAGE THE FOLLOWING SIGNAGE MUST HAVE A MINIMUM OF 3/8" HIGH LETTERING, IN ARIAL FONT(NON-BOLD), WITH CAPITAL LETTERS, WHITE ON RED BACKGROUND AND ON A REFLECTIVE, WEATHER RESISTANT MATERIAL. FIRE DEPARTMENT REQUIRED SIGNAGE 7.AT THE MAIN SERVICE DISCONNECT PROVIDE A SIGN WITH THE FOLLOWING WORDING: CAUTION DERATED AMPACITY OF CIRCUIT CONDUCTOR PER NEC TABLE 310.16 TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 310.16 0.76 x 0.8 x 40 = 24.3A > 13.5A O.K. 1. LABEL FOR SOLAR DC DISCONNECT: 690.14(C)(2) SOLAR DC DISCONNECT 2. LABEL FOR SOLAR DC DISCONNECT: 690:53 MPPT OPERATING CURRENT: 16.9 ADC OPERATING VOLTAGE: 178.0 VDC MAXIMUM SYSTEM VOLTAGE: 246.4 VDC MAXIMUM SYSTEM CURRENT: 21.6 ADC 3. LABEL FOR JUNCTION BOX: 690.35(F) SOLAR ELECTRIC SYSTEM CONNECTED THE SIGN SHOULD BE PLACED ON THE OUTSIDE COVER IF THE MAIN SERVICE DISCONNECT IS OPERABLE WITH THE SERVICE PANEL CLOSED 8. ON ALL INVERTER AND EXTERIOR PV CONDUIT, RACEWAYS, ENCLOSURES, CABLE ASSEMBLIES AND JUNCTION BOXES PROVIDE A SIGN WITH THE FOLLOWING WORDING: CAUTION SOLAR CIRCUIT 6 u v. . AC CONDUCTOR AMPACITY CALC'S 0 of O # OF INVERTER: 1 O. Ul CE gil EXPECTED WIRE TEMP. (°C): 31 %20850% PTEMP. CORR. PER NEC TABLE 310.16: 0.96 5%%33 .NI CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 imfjow# OF CURRENT CARRYING CONDUCTORS: 3 &4* :53 41:1 CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1 03/D13:eli 000*001- CIRCUIT CONDUCTOR AMPACITY: 40A REQUIRED CIRCUIT CONDUCTOR AMPACITY £= PER NEC TABLE 690.8(B): 1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER 1.25 x 14.5 x1= 18.1A W 0 WARNING! ELECTRIC SHOCK HAZARD IF A GROUND FAULT IS INDICATED, NORMALLY GROUNDED CONDUCTORS MAY BE UNGROUNDED AND ENERGIZED 4. PROVIDE A PLACARD WITH THE FOLLOWING WORDING IN 1/4" HIGH LETTERING LABEL FOR SOLAR AC DISCONNECT: 690.17(4) WARNING! ELECTRICAL SHOCK HAZARD DO NOT TOUCH TERMINALS. TERMINALS ON BOTH THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION 5. LABEL FOR SOLAR AC DISCONNECT: 690.14(C)(2) SOLAR AC DISCONNECT 6. LABEL FOR INSIDE MAIN SERVICE PANEL POINTING AT OR AT PV BREAKER: 690.64(B)(7) MARKING SHALL BE PLACED EVERY 10 FEET AT TURNS AND ABOVE AND/ OR BELOW PENETRATIONS AND AT ALL PV COMBINER AND JUNCTION BOXES. ELECTRICAL CALCULATIONS OPERATION VOLTAGE= 5 X 35.6= 178.0 V OPERATING CURRENT= 2 X 8.44= 16.9 A MAX PV VOLTAGE & CURRENT CALC'S RECORD LOW TEMP.(°C): 2 TEMP.COEFF (V/°C): -0.0035 OPEN CIRCUIT VOLTAGE(Voc): 45.6 MAX PV SYSTEM VOLTAGE (PER NEC 690.7) 5x {45.6+[(2-25) x (-0.0035x45.6)} = 246.4 V MAX PV CONTINUOUS CURRENT PER NEC 690.8(A)(1): 1.25 x Isc x # STRINGS 1.25 x 8.65 x 2 = 21.6 A DERATED AMPACITY OF CIRCUIT CONDUCTOR PER NEC TABLE 310.16 TEMP. CORR. PER NEC 310.16 x CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a) x CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 310.16 0.96 xlx40= 38.4A >18.lA O.K. 20A PV BREAKER WILL BE PROVIDED BACKFED 120% RULE NEC 690.64(B)(2) AND NEC 690.64(B)(7) 120% x BUS RATING>=MAIN BREAKER + PV BREAKER - 120% x 100A>=100A+PV BREAKER PV BREAKER <= 20A 20A<= 20A O.K. SITE PLACARD CAUTION POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECTS LOCATED AS SHOWN: 2118 W 12TH ST WARNING! INVERTER OUTPUT CONNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE DC CONDUCTOR AMPACITY CALC'S # OF STRINGS PER INVERTER: 2 EXPECTED WIRE TEMP. (°C): 53 TEMP CORRECTION PER TABLE 310.16: 0.76 # OF CURRENT CARRYING CONDUCTORS: 4 CIRCUIT FILL CORRECTION PER TABLE 310.15(B)(2)(a): 0.8 CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 LLkh-1 REQUIRED CIRCUIT CONDUCTOR AMPACITY 1. SOLAR PANELS I PER NEC 690.8 (A&B) (FROM PANELS TO INVERTER):2. INVERTER 1.25 x 1.25 x Isc x # PER STRING 3. SOLAR AC DISCONNECT 1.25 x 1.25 x 8.65 x1= 13.5 A 4. MAIN SERVICE PANEL PV 4 r- €t 00 U., 1