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REQUIRED SIGNAGE <br />1. 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 />2. LABEL FOR SOLAR AC DISCONNECT: 690.53 <br />OPERATING CURRENT:11.0 A <br />OPERATING VOLTAGE: 240 VAC <br />MAXIMUM OUTPUT POWER: 2.75 kW <br />3. PROVIDE A PLACARD WITH THE FOLLOWING <br />WORDING IN 3/8" 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 />4. LABEL FOR SOLAR AC DISCONNECT: 690.14(C)(2) <br />SOLAR AC DISCONNECT <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 />7. 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 AND AT <br />ALL PV COMBINER AND JUNCTION BOXES. <br />ELECTRICAL CALCULATIONS <br />OPERATION VOLTAGE= 240 V <br />OPERATING CURRENT= 11 X 1.0 = 11.0 A <br />MAX PV VOLTAGE & CURRENT CALC'S <br />MAXIMUM AC OUTPUT POWER: <br />250 x 11 = 2.75 kW <br />AC CONDUCTOR AMPACITY CALC'S ROOF CONDUIT <br />AC CONDUCTOR AMPACITY CALC'S WALL CONDUIT <br /># OF INVERTER: 11 7 <br />01 <br />EXPECTED AMBIENT TEMP. (°C): 31 .22 <br />TEMP. CORR. PER NEC TABLE 310.16: 0.96 :5% <br />900CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 SU) 2 <br /># OF CURRENT CARRYING CONDUCTORS: 2 U) ac Q <br />0- U.1 LL <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1 Re %:5 <br />nacrwaCIRCUIT CONDUCTOR AMPACITY: 40A <br />5(LUCL- <br />REQUIRED CIRCUIT CONDUCTOR AMPACITY F LU H- I <br />PER NEC TABLE 690.8(B):03040 <br />OU)091-a1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER <br />1.25 x 1.0 x 11 = 13.8A <br />DERATED AMPACITY OF CIRCUIT CONDUCTORS PER <br />NEC TABLE 310.16: - <br />TEMP. CORR. PER NEC TABLE 310.16 x <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a) x <br />CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 310.16 * <br />>20.96 xlx40= 38.4A > 13.8A O.K.mg <br />20A PV BREAKER WILL BE PROVIDED * <br />< -1 <br />of U) <br />BACKFED 120% RULE PER NEC 690 00 <br />120% x BUS RATING >= MAIN BREAKER + PV BREAKER <br />120% x 100A >= 100A+PV BREAKER <br />PV BREAKER <= 20A <br />20A <= 20A O.K. <br />2 <br />5. LABEL POINTING AT OR AT PV BREAKER INSIDE MAIN <br />SERVICE PANEL: 690.64(B)(7) <br />WARNING! <br />INVERTER OUTPUT CONNECTION <br />DO NOT RELOCATE THIS OVERCURRENT DEVICE <br /># OF INVERTER: 11 <br />EXPECTED MAX AMBIENT TEMP. (°C): 53 <br />TEMP. CORR. PER NEC TABLE 310.16: 0.76 <br />CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 <br /># OF CURRENT CARRYING CONDUCTORS: 2 <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1.0 <br />CIRCUIT CONDUCTOR AMPACITY: 40A <br />Iii 0 WSITE PLACARD =N%0* <br />2 (5 #E <br />CAUTION £30-3,<9 <br />W 00 · < 0POWER TO THIS BUILDING IS ALSO SUPPLIED -DZI-- <br />FROM THE FOLLOWING SOURCES WITH :ms/F <br />0.-,CNCO S <br />DISCONNECTS LOCATED AS SHOWN: <br />FIRE DEPARTMENT REQUIRED SIGNAGE <br />6. 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 />REQUIRED CIRCUIT CONDUCTOR AMPACITY <br />PER NEC TABLE 690.8(B): <br />1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER <br />1.25xl.Oxll=13.8A <br />DERATED AMPACITY OF CIRCUIT CONDUCTORS <br />PER NEC TABLE 310.16: <br />4 41/1 / <br />F I lit' 11\ 71 <br />AT THE MAIN SERVICE DISCONNECT PROVIDE A SIGN <br />WITH THE FOLLOWING WORDING: <br />CAUTION <br />SOLAR ELECTRIC SYSTEM CONNECTED <br />TEMP. CORR. PER NEC TABLE 310.16 x <br />CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a) x <br />CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 310.16 <br />0.76 x 1.0 x 40 = 30.4A > 13.8A O.K. <br />10 AWG WIRE IS O.K. <br />f 11 <br />1. SOLAR PANELS <br />2. SOLAR AC DISCONNECT 3. MAIN SERVICE PANEL <br />PV 4 <br />T: 714-676-8888 <br />f IU