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DC <br />OPTIMIZER <br />SOME MODULE/OPTIMIZER <br />PAIRS NOT SHOWN FOR <br />CLARITY <br />SOLAR <br />MODULE <br />OPTIMIZER GROUNDING DETAILS <br />CONNECT MODULE OUTPUT <br />CONDUCTORS TO SOLAR EDGE <br />INPUT LEADS <br />CONDUCTORS EXPOSED TO FREE AIR: <br />(4) #10 AWG PV-WIRE CONDUCTORS <br />(1) #6 AWG BARE COPPER GROUND <br />STRING 1 <br />DC <br />OPTIMIZER <br />DC <br />OPTIMIZER <br />3/4" EMT CONDUIT: <br />(4) #10 AWG THWN-2 WIRE CONDUCTORS <br />(1) #8 AWG THWN-2 COPPER GROUND <br />JUNCTION BOX <br /> (AS NEEDED) <br />INVERTER <br /> DC IN <br />AC OUT <br />STRING 2 <br />WIRING IDENTICAL TO STRING 1 <br />(8) JINKO: JKM400M-72HL-V <br />(8) SOLAREDGE: P400 POWER <br />OPTIMIZERS <br />B <br />3 <br />2 <br />1 <br />A <br />LOAD RATED DC DISCONNECT <br />MAX DC INPUT VOLTAGE: 480V <br />MANUAL <br />LOCKABLE <br />DISCONNECT <br />3R, 60A, <br />120/240VAC <br />3/4" EMT: <br />(2) #8 AWG THWN-2 CONDUCTORS <br />(1) #8 AWG THWN-2 NEUTRAL <br />(1) #8 AWG THWN-2 GROUND <br />CC <br />4 <br />120/240 VAC <br />SINGLE PHASE SERVICE <br />(N) 200A MAIN PANEL <br />(N) 200A MAIN BREAKER <br />(N) 35 AMP <br />PV BREAKER <br />GROUND <br />BUS <br />NEUTRAL <br />BUS <br />UTILITY <br />METER <br />FACILITY <br />GROUND <br />SUPPLEMENTAL <br />GROUND IF <br />NECESSARY <br />20 <br />0 <br />A, <br />2 <br />P <br />*INSTALLER TO VERIFY EXISTING GROUNDING SYSTEM* <br />GEC COMPLIANT WITH NEC ARTICLES 250 AND 690. <br />6AWG BARE COPPER GROUND RUN OUTSIDE RACEWAY OR 8AWG THWN-2 IN CONDUIT <br />(690.47, 250.30, 250.33, 250.66, 250.64 & ANY OTHER APPLICABLE SECTIONS) <br />(9) JINKO: JKM400M-72HL-V MODULES AND <br />(9) SOLAREDGE: P400 DC-DC POWER <br />OPTIMIZERS. <br />OPTIMIZERS ARE WIRED IN SERIES <br />x 380V FIXED STRING VOLTAGE DURING <br />OPERATION (CONTROLLED BY INVERTER). <br />x 480V DC MAXIMUM STRING VOLTAGE <br />(LIMITED BY INVERTER). <br />SOLAREDGE: SE6000H-US [240V] <br />6000WATT INVERTER <br />10/21/2021 <br />6. <br />8 <br />0 <br />0 <br />PR <br />A <br />X <br />E <br />D <br />I <br />S <br />, <br /> <br />C <br />A <br />N <br />D <br />I <br />D <br />O <br /> <br />& <br />PR <br />I <br />S <br />C <br />A <br />37 <br />0 <br />2 <br /> <br />A <br />L <br />D <br />E <br />R <br /> <br />S <br />T <br />R <br />E <br />E <br />T <br />, <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />7 <br />-- <br />- <br />Eq <br />u <br />i <br />s <br />o <br />l <br />a <br />r <br />1 <br />6 <br />5 <br />3 <br />0 <br /> <br />V <br />e <br />n <br />t <br />u <br />r <br />a <br /> <br />B <br />l <br />v <br />d <br /> <br />S <br />u <br />i <br />t <br />e <br /> <br />1 <br />0 <br />4 <br />En <br />c <br />i <br />n <br />o <br />, <br /> <br />C <br />A <br /> <br />9 <br />1 <br />4 <br />3 <br />6 <br />81 <br />8 <br />. <br />7 <br />8 <br />4 <br />. <br />2 <br />3 <br />0 <br />0 <br />CS <br />L <br />B <br />: <br /> <br />G <br />e <br />n <br />- <br />B <br />; <br /> <br />1 <br />0 <br />0 <br />6 <br />5 <br />3 <br />5 <br />SI <br />G <br />N <br />A <br />T <br />U <br />R <br />E <br />: <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />Paper Size <br />Scale <br />Drawn by <br />Title <br />Project Number <br />Sheet <br />10/21/2021 <br />6. <br />8 <br />0 <br />0 <br />PR <br />A <br />X <br />E <br />D <br />I <br />S <br />, <br /> <br />C <br />A <br />N <br />D <br />I <br />D <br />O <br /> <br />& <br />PR <br />I <br />S <br />C <br />A <br />37 <br />0 <br />2 <br /> <br />A <br />L <br />D <br />E <br />R <br /> <br />S <br />T <br />R <br />E <br />E <br />T <br />, <br />SA <br />N <br />T <br />A <br /> <br />A <br />N <br />A <br />, <br /> <br />C <br />A <br /> <br />9 <br />2 <br />7 <br />0 <br />7 <br />-- <br />- <br />Eq <br />u <br />i <br />s <br />o <br />l <br />a <br />r <br />1 <br />6 <br />5 <br />3 <br />0 <br /> <br />V <br />e <br />n <br />t <br />u <br />r <br />a <br /> <br />B <br />l <br />v <br />d <br /> <br />S <br />u <br />i <br />t <br />e <br /> <br />1 <br />0 <br />4 <br />En <br />c <br />i <br />n <br />o <br />, <br /> <br />C <br />A <br /> <br />9 <br />1 <br />4 <br />3 <br />6 <br />81 <br />8 <br />. <br />7 <br />8 <br />4 <br />. <br />2 <br />3 <br />0 <br />0 <br />CS <br />L <br />B <br />: <br /> <br />G <br />e <br />n <br />- <br />B <br />; <br /> <br />1 <br />0 <br />0 <br />6 <br />5 <br />3 <br />5 <br />SI <br />G <br />N <br />A <br />T <br />U <br />R <br />E <br />: <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />_ <br />Paper Size <br />Scale <br />Drawn by <br />Title <br />Project Number <br />Sheet <br />ELECTRICAL NOTES: <br />1. GROUNDING WIRE WILL BE BONDED DIRECTLY TO FACILITY GROUND. <br />2. ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH 2017 NEC 250. <br />3. MODULE CONNECTIONS TO BE MADE WITH #10 PV WIRE PER 690.35(D). <br />4. MODULE CONDUCTORS ARE SIZED FOR DERATED CURRENT. <br /> 9.71 AMPS SHORT CIRCUIT CURRENT <br /> 125% DERATING FOR EXTREME IRRADIANCE CONDITIONS [NEC 690.8(A)(1)] <br /> 125% DERATING, CONTINUOUS PHOTOVOLTAIC SOURCE CURRENT [NEC 690.8(B)(1)]. <br /> 156% TOTAL DERATING (COMBINATION OF ABOVE) <br /> 15.15 AMPS TOTAL CAPACITY <br />(AMPS TOTAL CAPACITY = STRING SHORT CIRCUIT CURRENT MULTIPLIED BY TWO ABOVE DERATES, 1.25 X 1.25 X SHORT <br />CIRCUIT CURRENT) <br />5. INVERTER PROVIDES NECESSARY GROUND FAULT PROTECTION AS REQUIRED BY 2017 NEC 690.5 GROUND FAULT PROTECTION <br />AND 690.35 UNGROUNDED SYSTEMS. <br />6. PHOTOVOLTAIC SYSTEM IS UNGROUNDED. NO CONDUCTORS ARE SOLIDLY GROUNDED IN THE INVERTER. SYSTEM COMPLIES <br />WITH 690.35. <br />7. WHERE DC PHOTOVOLTAIC OUTPUT CIRCUITS ARE RUN INSIDE A BUILDING THEY SHALL BE CONTAINED IN A METALLIC <br />RACEWAY OR ENCLOSURE FROM THE POINT OF PENETRATION TO THE FIRST READILY ACCESSIBLE DISCONNECTING MEANS - <br />2017 NEC 690.31 (E). <br />8. USE UL APPROVED BONDING FITTINGS AT ALL CONDUIT/BOX JUNCTIONS. <br />9. MODULES CONFORM TO AND ARE LISTED UNDER UL 1703. <br />10. INVERTER CONFORMS TO AND IS LISTED UNDER UL 1741. <br />11. INSTALLER TO IDENTIFY THE EXISTING GROUNDING ELECTRODE TYPE (I.E. DRIVEN ROD, UFER, WATER PIPE, OR COMBINATION <br />OF SOME OR ALL OF THE PREVIOUSLY MENTIONED). IN EXISTING ELECTRICAL SYSTEMS THAT USE ONLY A WATER PIPING <br />GROUNDING ELECTRODE SYSTEM, AN ADDITIONAL GROUNDING ELECTRODE (I.E DRIVEN ROD) SHALL BE PROVIDED. (NEC 250.50) <br />12. PER NEC 250.53(2), A SINGLE ROD, PIPE OR PLATE ELECTRODE SHALL BE SUPPLEMENTED BY AN ADDITIONAL ELECTRODE OF <br />TYPE SPECIFIED IN 250.52(A)(2) THROUGH (A)(8) SPACED NO LESS THAN 6FT APART. EXCEPTION, IF A SINGLE ROD, PIPE OR PLATE <br />GROUNDING ELECTRODE HAS A RESISTANCE TO EARTH OF 25 OHMS OR LESS, THE SUPPLEMENTAL ELECTRODE SHALL NOT BE <br />REQUIRED. <br />13. #4 AWG CU TO UNDERGROUND METAL WATER PIPE THAT IS A MINIMUM 10 FOOT BURIAL IN PIPE LENGTH. CONNECT GROUNDING <br />ELECTRODE CONDUCTOR WITHIN FIVE FEET OF WHERE IT ENTERS BUILDING. 250.52(A)(1), 250.68(C). <br />14. ADDITIONAL #4 AWG CONNECTION TO UFER IF AVAILABLE PER 250.66. IF UFER NOT AVAILABLE THEN TWO #6 AWG CU <br />CONNECTIONS TO GROUND RODS SEPARATED BY AT LEAST 6 FT IS NEEDED PER 250.33. <br />DC WIRE SIZING CALCULATIONS: <br />ASSUMPTIONS <br />HIGH TEMP AMBIENT = 39°C <br />HIGH TEMP ROOF = 56°C <br />LOW TEMP = -7°C <br />90°C RATED WIRE <br />CONDUIT MOUNTED MIN 3.5" ABOVE ROOF <br />SURFACE <br />AC WIRE SIZING CALCULATIONS: <br />EQUIPMENT <br />ID QTY ITEM <br />1 1 7 (N) JINKO: JKM400M-72HL-V MODULE <br />2 1 7 (N) SOLAREDGE: P400 DC-DC OPTIMIZERS <br />INVERTER 1 (N) SOLAREDGE: SE6000H-US [240V] INVERTER <br />3 1 (N) NEMA 3R 60A NON-FUSED AC DISCONNECT <br />240VAC, 10KAIC RATING. <br />OCPD CALCULATIONS PER INVERTER: <br />MAX AC OUTPUT CURRENT = (Inverter Output Circuit Current)[690.8(A)(3)] x (Safety)[690.9(B)] = <br />(25.00A) x (1.25) = 31.25A --> 35A OVERCURRENT PROTECTION. <br />MAIN PANEL <br />PV BACKFEED BREAKER SIZE 35A <br />MAIN BREAKER SIZE: 200A, MAIN BUS RATING: 200A <br />TOTAL AMPS ON BUS 200A + 35A = 235A ≤ 120% OF 200A (240A) <br />C. INVERTER TO MAIN SERVICE PANEL <br />SOLAREDGE: SE6000H-US [240V]: <br />MAX OUTPUT CURRENT: 25.00A <br />per 690.8(B)(1): 25.00A x 1.25 = 31.25A <br />WIRE CHOICE: #8 AWG THWN-2 <br />per 310.15(B)(16): #8 THWN-2 = 50A @75°C <br />per 310.15(B)(2)(a): 50A x 0.91[CORRECTION] = 45.5A <br />per 310.15(B)(3)(a): 45.5A x 100%[ADJUSTMENT] =45.5A <br />31.25A ≤45.5A ===> OK <br />A. OPTIMIZER TO JUNCTION BOX (OPEN AIR) <br />SOLAREDGE: P400 POWER OPTIMIZER <br />per 690.8(A)(5): 15A (max output current) <br />per 690.8(B)(1): 15A x 1.25 = 18.75A <br />WIRE CHOICE: #10 AWG PV-WIRE <br />per 310.15(B)(16): #10 PV-WIRE = 40A @90°C <br />per 310.15(B)(3)(C): 39°C + 17°C[3.5" ABOVE ROOF] = 56°C <br />per 310.15(B)(2)(a): 40A x 0.71[CORRECTION] = 28.4A <br />per 310.15(B)(3)(a): 28.4A x 100%[ADJUSTMENT] =28.4A <br />18.75A ≤28.4A ===> OK <br />B. JUNCTION BOX TO INVERTER <br />SOLAREDGE: P400 POWER OPTIMIZER <br />per 690.8(A)(5): 15A (max output current) <br />per 690.8(B)(1): 15A x 1.25 = 18.75A <br />WIRE CHOICE: #10 AWG THWN-2 <br />per 310.15(B)(16): #10 THWN-2 = 35A @75°C <br />per 310.15(B)(3)(C): 39°C + 17°C[3.5" ABOVE ROOF] = 56°C <br />per 310.15(B)(2)(a): 35A x 0.71[CORRECTION] = 24.85A <br />per 310.15(B)(3)(a): 24.85A x 80%[ADJUSTMENT] =19.88A <br />18.75A ≤19.88A ===> OK <br />10/26/2021 <br />VSE Project Number: U2880.1484.211 <br />OWERELECTRICAL ONLY <br />3702 S Alder St <br />11/05/21