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(1) 3/4" EMT <br />(3) # 10 THWN-2 CU <br />(1) #8 THWN-2 CU EGC <br />B <br />(1) 3/4" EMT <br />(3) # 10 THWN-2 CU <br />(1) #8 THWN-2 CU EGC <br />NEW ENPHASE IQ <br />COMBINER <br />125A RATED 120/240V <br />1PH 3W SUBPANEL <br />20A 2P <br />GRD <br />L1 #10 AWG <br />L2 #10 AWG <br />G.E.C. #10 AWG <br />#6 BARE CU EGC <br />1 <br />ENPHASE AC <br />CONNECTORS <br />BETWEEN AC CABLE <br />ENPHASE Q CABLE <br />600V <br />DOUBLE INSULATED, 90°C RATED <br />FOR EXPOSED AND WET / DRY <br />LOCATIONS. MEETS COLD TEST AT <br />-40 DEGREES C <br />(2) #12 AWG CONDUCTORS <br />NEMA 3R <br />JUNCTION BOX <br />2 7 <br />ROOF MOUNTED EQUIP. OUTSIDE THIS LINE <br />BOND #8 BARE CU EGC <br />TO RAIL <br />W/ Ilsco "LAY IN LUG" <br />CATALOG # GBL-4SS <br />6061-T6 AL <br />UL 467 LISTED FOR <br />GROUNDING AND BONDING <br />UL LISTED, SUITABLE FOR <br />USE WITH CU OR AL. <br />(TYP) EA RAIL <br />*DETAILS ON PAGE PV.09* <br />MODULES ARE BONDED TO EACH OTHER <br />VIA IRONRIDGE'S UFO INTEGRATED <br />GROUNDING MID CLAMP <br />*DETAILS ON PAGE PV.09* <br />2 <br />3 <br />1 <br />NOTE: THE IQ7, IQ7+, AND IQ7A MICROINVERTERS HAVE INTEGRATED GROUND AND <br />DOUBLE INSULATION, SO NO GEC OR EGC IS REQUIRED. THE DC CIRCUIT IS ISOLATED <br />AND INSULATED FROM GROUND AND MEETS THE REQUIREMENTS OF NEC 690.35 <br />A BRANCH CIRCUIT: <br />(7) JINKO: JKM400M-72HL-V <br />(7) Enphase: IQ7A-72-2-US <br />INPUT (SOURCE: MODULE): <br />Voc (48.55) * 1.14 = 55.35V <br />Isc (10.64) * 1.25 = 13.30A <br />OUTPUT (BRANCH CIRCUIT): <br />OUTPUT (SOURCE: EA INVERTER): <br />OUTPUT POWER: 366W / EA <br />OUTPUT CURRENT: 1.45A / EA <br />OUTPUT VOLTAGE: 240Vac <br />1.45A * 7 *1.25 = 12.69A <br />(7) JINKO: JKM400M-72HL-V, 400W MODULES <br />(7) Enphase: IQ7A-72-2-US <br />4 <br />5 <br />NEU #10 AWG <br />BLINE SIDELOAD SIDE <br />L1 <br />E.G.C. <br />L2 <br />120/240 VAC <br />SINGLE PHASE SERVICE <br />(E) 100A MAIN PANEL <br />(E) 100A MAIN BREAKER <br />(N) 15 AMP <br />PV BREAKER <br />FACILITY <br />GROUND <br />SUPPLEMENTAL <br />GROUND IF <br />NECESSARY <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 />MANUAL LOCKABLE <br />DISCONNECT <br />3R, 30A, 120/240VAC <br />B <br />NEU <br />9/22/2021 <br />2. <br />8 <br />0 <br />0 <br /> <br />DE <br /> <br />L <br />A <br /> <br />C <br />R <br />U <br />Z <br />, <br /> <br />E <br />L <br />A <br />D <br />I <br />O <br />47 <br />0 <br />1 <br /> <br />W <br />E <br />S <br />T <br /> <br />L <br />U <br />C <br />K <br />Y <br /> <br />W <br />A <br />Y <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 />4 <br />-- <br />- <br />Paper Size <br />Scale <br />Drawn by <br />Title <br />Project Number <br />Sheet <br />Eq <br />u <br />i <br />s <br />o <br />l <br />a <br />r <br />16 <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 />9/22/2021 <br />2. <br />8 <br />0 <br />0 <br />DE <br /> <br />L <br />A <br /> <br />C <br />R <br />U <br />Z <br />, <br /> <br />E <br />L <br />A <br />D <br />I <br />O <br />47 <br />0 <br />1 <br /> <br />W <br />E <br />S <br />T <br /> <br />L <br />U <br />C <br />K <br />Y <br /> <br />W <br />A <br />Y <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 />4 <br />-- <br />- <br />Paper Size <br />Scale <br />Drawn by <br />Title <br />Project Number <br />Sheet <br />Eq <br />u <br />i <br />s <br />o <br />l <br />a <br />r <br />16 <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 />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: OCPD CALCULATIONS PER INVERTER: <br />MAX AC OUTPUT CURRENT = (Inverter Output Circuit Current)[690.8(A)(3)] x (Safety)[690.9(B)] = <br />(1.45A) x (7) x (1.25) = 12.69A --> 15A OVERCURRENT PROTECTION. <br />EQUIPMENT <br />ID QTY ITEM <br />1 7 (N) JINKO: JKM400M-72HL-V MODULE <br />2 7 (N) Enphase: IQ7A-72-2-US INVERTER <br />3 TBD (N) NEMA 3R JUNCTION BOX <br />4 1 (N) ENPHASE IQ COMBINER BOX <br />5 1 (N) NEMA 3R 30A NON-FUSED AC DISCONNECT <br />240VAC, 10KAIC RATING, <br />ELECTRICAL NOTES: <br />1. THE PROVISIONS OF ARTICLE 690 OF THE 2017 NATIONAL ELECTRIC CODE MUST BE ADHERED TO FOR THE CONSTRUCTION <br />AND INSTALLATION OF ELECTRICAL WIRING AND EQUIPMENT ASSOCIATED WITH SOLAR PHOTOVOLTAIC SYSTEM. <br />2. GROUNDING WIRE WILL BE BONDED DIRECTLY TO FACILITY GROUND. <br />3. ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH NEC 250. <br />4. MODULE CONNECTIONS TO BE MADE WITH #10 PV WIRE OR USE-2 PER NEC 690.31(C)(1). <br />5. MODULE CONDUCTORS ARE SIZED FOR DERATED CURRENT. <br /> 10.64 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 /> 16.60 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 />6. INVERTER PROVIDES NECESSARY GROUND FAULT PROTECTION AS REQUIRED BY NEC 690.41(B) <br />7. PHOTOVOLTAIC SYSTEM IS UNGROUNDED/FUNCTIONALLY GROUNDED. NO CONDUCTORS ARE SOLIDLY GROUNDED IN THE <br />INVERTER. SYSTEM COMPLIES WITH 690.41 <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(A)(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. NEC 250.52(A)(1), 250.68(C)(1). <br />14. ADDITIONAL #4 AWG CONNECTION TO UFER IF AVAILABLE SIZED PER NEC 250.66. IF UFER NOT AVAILABLE THEN TWO #6 AWG CU <br />CONNECTIONS TO GROUND RODS SEPARATED BY AT LEAST 6 FT IS INTALLED PER NEC 250.53. <br />MAIN PANEL <br />PV BACKFEED BREAKER SIZE 15A <br />MAIN BREAKER SIZE: 100A, MAIN BUS RATING: 100A <br />TOTAL AMPS ON BUS 100A + 15A = 115A ≤ 120A (120% OF 100A) <br />PER 705.12(D)(2)(3)(b) <br />AC WIRE SIZING CALCULATIONS: <br />A. INVERTER TO JUNCTION BOX (OPEN AIR) <br />Enphase: IQ7A-72-2-US: <br />MAX OUTPUT CURRENT: 1.45A X 7 = 10.15A <br />per 690.8(B)(1): 10.15A x 1.25 = 12.69A <br />ENGAGE Q CABLE: (2) #12 THWN-2 <br />per 310.15(B)(16): #12 THWN-2 = 30A @90°C <br />per 310.15(B)(2)(a): 30A x 0.71[CORRECTION] = 21.3A <br />per 310.15(B)(3)(a): 21.3A x 100% [ADJUSTMENT] = 21.3A <br />12.69A ≤ 21.3A ===> OK <br />B. JUNCTION BOX TO MAIN SERVICE PANEL <br />Enphase: IQ7A-72-2-US: <br />MAX OUTPUT CURRENT: 1.45A <br />per 690.8(B)(1): 1.45A x 1.25 = 1.81A <br />1.81A x 7 INVERTERS = 12.69A <br />WIRE CHOICE: #10 AWG THWN-2 <br />per 310.15(B)(16): #10 THWN-2 = 35A @75°C <br />per 310.15(B)(2)(a): 35A x 0.71[CORRECTION] = 24.85A <br />per 310.15(B)(3)(a): 17.75A x 80% [ADJUSTMENT] = 19.88A <br />12.69A ≤ 19.88 A ===> OK <br />10/06/2021 <br />VSE Project Number: U2880-1439-211 <br />ELECTRICAL ONLY <br />4701 W Lucky Way <br />11/02/21