10179240_1406 S. KILSON - Plan - Laserfiche WebLink

Home Browse Search

REQUIRED SIGNAGE 1. LABEL FOR JUNCTION BOX: 690.35(F) WARNING! ELECTRIC SHOCK HAZARD IF A GROUND FAULT IS INDICATED, NORMALLY GROUNDED CONDUCTORS MAY BE UNGROUNDED AND ENERGIZED 2. LABEL FOR SOLAR AC DISCONNECT: 690.53 OPERATING CURRENT: 9.9 A OPERATING VOLTAGE: 240 VAC MAXIMUM OUTPUT POWER: 2.4 kW 7. ON ALL INVERTER AND EXTERIOR PV CONDUIT, RACEWAYS, ENCLOSURES, CABLE ASSEMBLIES AND JUNCTION BOXES PROVIDE A SIGN WITH THE FOLLOWING WORDING: CAUTION SOLAR CIRCUIT MARKING SHALL BE PLACED EVERY 10 FEET AT TURNS AND ABOVE AND/ OR BELOW PENETRATIONS AND AT ALL PV COMBINER AND JUNCTION BOXES. AC CONDUCTOR AMPACITY CALC'S (FROM AC DISCONNECT TO MAIN SERVICE PANEL) # OF INVERTER: 11 EXPECTED WIRE TEMP. (°C): 31 TEMP. CORR. PER NEC TABLE 310.16: 0.96 CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 # OF CURRENT CARRYING CONDUCTORS: 3 CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1 CIRCUIT CONDUCTOR AMPACITY: 40A REQUIRED CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 690.8(B): 1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER 1.25x0.9xll=12.4A DERATED AMPACITY OF CIRCUIT CONDUCTORS PER 3. 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 4. LABEL FOR SOLAR AC DISCONNECT: 690.14(C)(2) SOLAR AC DISCONNECT 5. LABEL FOR INSIDE MAIN SERVICE PANEL: 690.64(B)(7) WARNING! INVERTER OUTPUT CONNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE FIRE DEPARTMENT REQUIRED SIGNAGE ELECTRICAL CALCULATIONS OPERATION VOLTAGE= 240 V OPERATING CURRENT= 11 X 0.9= 9.9 A MAX PV VOLTAGE & CURRENT CALC'S MAXIMUM AC OUTPUT POWER: 215 x 11 = 2.4 kW MAXIMUM PV SYSTEM DC VOLTAGE PER NEC 690.7 37.14xl.12=41.6V MAXIMUM PV CONTINUOUS DC CURRENT PER NEC 690.8(A)(1) 1.25 x 8.45 xl= 10.6A AC CONDUCTOR AMPACITY CALC'S (FROM STRING TO AC DISCONNECT) # OF INVERTER: 11 EXPECTED WIRE TEMP. (°C): 53 TEMP. CORR. PER NEC TABLE 310.16: 0.76 CIRCUIT CONDUCTOR SIZE: AWG 10 THWN-2 # OF CURRENT CARRYING CONDUCTORS: 3 CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a): 1.0 CIRCUIT CONDUCTOR AMPACITY: 40A NEC TABLE 310.16: TEMP. CORR. PER NEC TABLE 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 > 12.4A O.K. 15A PV BREAKER WILL BE PROVIDED BACKFED 120% RULE PER NEC 690 . S 120% x BUS RATING>=MAIN BREAKER + PV BREAKER 120% x 100A>=100A+PV BREAKER PV BREAKER <= 20A 0 15A<= 20A O.K. Z 6. 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. AT THE MAIN SERVICE DISCONNECT PROVIDE A SIGN WITH THE FOLLOWING WORDING: CAUTION 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 9929LU <2<10REQUIRED CIRCUIT CONDUCTOR AMPACITY lai-- O LUEZ* PER NEC TABLE 690.8(B):RE 83:AE 1.25 x MAX INVERTER OUTPUT CURRENT X # OF INVERTER 1.25x0.9xll=12.4A TITLE: DERATED AMPACITY OF CIRCUIT CONDUCTORS CALCULATION PER NEC TABLE 310.16:SIGNAGE TEMP. CORR. PER NEC TABLE 310.16 x CONDUIT FILL CORR. PER NEC 310.15(B)(2)(a) x JOB NO: 20526X CIRCUIT CONDUCTOR AMPACITY PER NEC TABLE 310.16 0.76 x 1.0 x 40 = 30.4A > 12.4A O.K.DATE: 07/11/13 10 AWG WIRE IS O.K. PV 4