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POWER TO THIS BUILDING ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECTS LOCATED AS SHOWN CAUTION SERVICE BY QUALIFIED PERSONNEL ONLY N TO BE INSTALLED ON THE OUTSIDE COVER OF THE MAIN SERVICE DISCONNECT: ALL SIGNAGE SHALL BE REFLECTIVE, UV RESISTANT PLASTIC, RED IN COLOR WITYH WHITE LETTERING, AND ATTACHED WITH WEATHERPROOF ADHESIVE OR OTHER APPROVED METHOD. ALL LETTERS SHALL BE A MINIMUM OF 3 8" HEIGHT AND ALL CAPITALIZED. SYSTEM SIGNAGE ALL CONDUIT, JUNCTION BOXES AND OTHER ENCLOSURES SHALL BE MARKED AT 10' MAX INTERVALS AND AT ALL BENDS, TERMINATIONS, SPLICES OR CONNECTIONS WITH "WARNING: PHOTOVOLTAIC POWER SOURCE'. TO BE INSTALLED AT ALL SERVICEABLE PANELS OR BOXES AND AT ALL DISCONNECTS: WARNING! ELECTRIC SHOCK HAZARD TERMINALS ON BOTH LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION TO BE INSTALLED ON THE FRONT OF THE AC DISCONNECT: RAPID SHUTDOWN SWITCH FOR SOLAR SYSTEM RATED AC OUTPUT CURRENT = 35.2 A NOMINAL OPERATING AC VOLTAGE = 240 V TO BE INSTALLED AT THE BACKFEED BREAKER SERVING THE PV SOLAR SYSTEM: WARNING! POWER SOURCE OUTPUT CONNECTION DO NOT RELOCATE THIS OVERCURRENT DEVICE TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN THE ARRAY SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN SOLAR ELECTRIC PV PANELS TO BE INSTALLED ON THE FRONT OF THE MAIN SERVICE DISCONNECT: "SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN" SHALL BE BLACK LETTERING ON YELLOW BACKGROUND. THE REMAINDER OF THE SIGN SHALL BE BLACK LETTERING ON THE WHITE BACKGROUND. SYSTEM CALCULATIONS: NUMBER OF MODULES IN CIRCUIT#1 = 9 MODULE MAX OUTPUT CURRENT = 1.6A (9)(1.6A)(1.25) = 18A[Ic], USE 20A BREAKER NUMBER OF MODULES IN CIRCUIT#2 = 7 (7)(1.6A)(1.25) = 14A, USE 20A BREAKER NUMBER OF MODULES IN CIRCUIT#3 = 6 (6)(1.6A)(1.25) = 12A, USE 20A BREAKER TOTAL NUMBER OF MODULES = 22 (22)(1.6A)(1.25) = 44A[I], USE 50A FUSE WIRE CALCULATIONS: NOTE: DISTANCE ABOVE ROOF TO BOTTOM OF CONDUIT: >23mm (7 8") FROM THE MODULES TO THE LOAD CENTER: AMBIENT TEMPERATURE = 34°C ADJUSTMENT FACTOR PER TABLE 310.15(B)(2)(b) FOR 90°C INSULATED CONDUCTOR AT 34°C = 1.05 Ic = 18A 18A/1.05 = 17.14A NUMBER OF CURRENT CARRYING CONDUCTORS IN CONDUIT = 6 ADJUSTMENT FACTOR PER TABLE 310.15(B)(3)(a) FOR CONDUIT FILL (4-6 CONDUCTORS IN CONDUIT)=0.80 17.14A/0.80 = 21.425A SELECT WIRE SIZE WITH AMPACITY GREATER THAN 21.425A, USE 10 AWG THWN-2 COPPER WIRE WITH AN AMPACITY OF 40A. SELECT CONDUIT FOR (6)10 AWG THWN-2 & (1)10 AWG GROUND = 3 4" EMT CONDUIT. FROM THE LOAD CENTER TO THE FUSED AC DISCONNECT: ADJUSTMENT FACTOR PER TABLE 310.15(B)(2)(a) FOR 90°C INSULATED CONDUCTOR AT 34°C = 0.96 I = 44A 44A/0.96 = 45.83A SELECT WIRE SIZE WITH AMPACITY GREATER THAN 45.83A, USE 8 AWG THWN-2 COPPER WIRE WITH AN AMPACITY OF 55A. SELECT CONDUIT FOR (3)8 AWG THWN-2 & (1)10 AWG GROUND = 3 4" EMT CONDUIT. ECOSOLAR USA ELECTRICAL LLC 13962 SEABOARD CIRCLE GARDEN GROVE, CA 92840 PH: 714.265.9077 SCOPE OF WORK: INSTALL (22) SUNPOWER SPR-M410-BLK-H-AC SOLAR ELECTRIC MODULES ON THE EXISTING 1ST STORY W-TILE ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) FUSED AC DISCONNECT, (1) LOAD CENTER, AND CONNECT TO SCE INSTALLED GMA. DAVID Q HOANG C10 - 1045300 DATE: 11/17/22 PLANS PREPARED BY: R. ABANTO JR. HOMEOWNER: JESSE TA PH: (714) 391-1180 ADDRESS: 2301 HUCKLEBERRY ROAD SANTA ANA, CA, 92706 REV DESCRIPTION AHJ REDLINEA DATE 11.17.22 SOLAR ARRAY (ON ROOF) AC LOAD CENTER AC DISCONNECT SERVICE POINT & UTILITY METERING PV3 A This item has been digitally signed and sealed on Nov 21, 2022 2301 W Huckleberry Rd12/15/22