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Modules: <br />16 SolarWorld SW 270 Mono Black (240.2 W PTC) <br />1 String of 10 Modules on MPPT1 <br />1 String of 6 Modules on MPPT2 <br />PV Conductors are UnGrounded <br />Modules and Rails are Bonded with <br />ILSCO Lay-in Lugs Grounding System <br />3 #10 THWN-2 Cu (HHN)CD 0 0* <br />/1 #8 THWN-2 Cu (GND)m u, ® b <br />2 #10 PV Wire Cu (+,-)2 #10 THWN-2 Cu (+,-)v k U)= Nin min 1/2" EMT1 #6 Bare Cu (GND) 1 #8 THWN-2 Cu (GND) 4 #10 THWN-2 Cu (+,-)%€5 28 <br />in free air in min. 1/2" EMT /1 #8 THWN-2 Cu (GND)E E LO I <br />/ in min. 3/4" EMT -3Eg-20 <br />0 <br />9---------------- 4127-- A ALEZY 08023Service is 100A <br />120V/240V 1 *3W <br />0 0 <br />U: 0 AA 0-0--0 1 00 ,11Yb"-7 (\1R ' rt <br />- 1 E <60- EN <br />000000 J-Box a p©0 00 * <br />1 --1 --020 A-UX Ef " <br />1 0-il" 99- IJ /;4 F 19 2.02 #10 PV Wire Cu (+1-) V = <br />1 #6 Bare Cu (GND)-4 -J-Box (E) 100 A Main Service Panel <br />in free air Backfed Breaker attached at =C CV <br />(N) PV Inverter opposite (load) end of - <br />- Power One PVI-3.8-OUTD-US-A 240V Busbar from Main Breaker 0 (D < <br />16 A Max Current <br />95.5% CEC Eff.1E l No. C 5872• 1 b SgO <br />Ck*\*---- 3.*f E -2 of gModule and Array Ratings: 0 6 Modules) 1 Inverter Ratings: ' <br />PV Module Ratings: (STC)MPPT 1: (STC)MPPT 2: (STC)Make:Power One 42>.:. Ctv <br />Make:SolarWorld Series: 10 Series: 6 Model:PVI-3.8-OUTD-S-US-A 240V 2 05 mModel:SW270 Mono Black Parallel: 1 Parallel: 1 Max Input Current:25 A CD - <br />Imp:8.81 A Imp: 8.81 A Imp:8.81 A Max DC Voltage:600 V <br />Vmp:30.90 V Vmp: 309.00 V Vmp:185.40 V MPPT Min Voltage:120 V <br />ISC:9.44 A ISC:9.44 A ISC:9.44 A MPPT Max Voltage:470 V <br />voc:39.20 V Voc: 392.00 V voc:235.20 V Max Power (AC):3800 W 9-22t 1- < 044 (nPmax:272 W Pmax: 2722 W Prnax:1633 W Nom. AC Voltage:240 V <br />%Voc / °C 0.30%Record Low -6 °C Max AC Current:16.00A Ac#--f* ) Rev Date <br />PTC Watts 240.20 W CEC Efficiency 95.5%lic, rniSER:X Illul NO·20]1 <br />iard & <br />42 <br />690.53 Label For PV Disconnecting Means MPPT 1 <br />Imp:8.81 A(Module Imp) x 1 Parallel Strings <br />Vmp:30.9 V(Module Vmp) x 10 Modules in Series <br />VOC:392 [Array Voc] + (0.003 [%Voc/°K] x (25°C - (-6°C) [Record Low]) x 392 [Array V04) <br />ISC:9.44A x 125% x 1 Parallel String(s) <br />//2,-99 11 <br />11.80 A <No. C58724 'Imil VS-Of C_57 <br />690.53 Label For PV Disconnecting Means MPPT 2 , *< Exp. 3-31-15 * <br />Imp:8.81 A(Module Imp) x 1 Parallel Strings 8.81 A » C C IV\\- <br />Vmp:30.9 V(Module Vmp) x 6 Modules in Series 185V <br />voc:235.2 [Array Vocl + (0.003 [%Vod°K] x (25°C - (-6°C) [Record Low]) x 235.2 [Array Voc])257 V 42<OFCALIFI <br />ISC:9.44A [Module Isc] x 125% x 1 Parallel String(s)11.80 A <br />Conductor Sizing Calculations <br />Max Current Calculation: <br />Run 1 Max Current Calculation Max Current 1 Length <br />PV Source Circuit 9.44 A 9.44A x 1.25 x 1.25 =14.75 A 30 FT <br />Inverter Output Circuit 16.00 A 16A x 1.25 =20.00 A 10 FT <br />Voltage Drop Calculations <br />Q/kFT Calculation <br />1.29 9.44A x30 FT x2x 1.29 0/ 1000 FT / 309 V= <br />1.29 16A x 10 FT x2x 1.29 0/1000 FT/ 240V = <br />Vdrop <br />0.24% <br />0.17% <br />www. Loyd W Martin .com <br />Solar Structures Engineering <br />#2014-723 Structural Only <br />Conductor Ampacity with Condition of Use Derates <br />Current <br />Carrying Specified <br />Drawn By: Sunny <br />Date: 05/12/2014 <br />Run Ambient Temp °F Conductor Conductor <br />Calculation Max Ampacity OCPD Sheet:V <br />S <br />PV Source Circuit 141-158 4-6 #10 THWN-2 40A x 0.58 (Amb. Temp.) x 0.8 (Raceway Fill) =18.56A NA <br />Inverter Output Circuit 123-131 1-3 #10 THWN-2 40A x 0.76 (Amb. Temp.) x 1 (Raceway Fill) =30.40 A 20A <br />P#-4 <br />ELECIRICAL <br />DRAVOING <br />==9 -1 <br />8.81 A <br />309 V <br />428 V