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Single Line Diagram <br />Max. OCPD: <br />(200A Bus) * (1.2)= 240A Max Rating (120% of Bus) <br />PV Backfeed (35A) + Main Breaker (200A) = (235A) 5 240A <br />See 690.64 (B)(2) of 2013 CEC <br />(4) #10 THWN-2 & (1) #8 AWG <br />THWN-2 Ground <br />(See 2013 CEC Table 250.122 <br />Conductors in 3/4" EMT Conduit <br />Min. <br />(4) #10 USE-2 Conductors <br />(See Amp. Calc. A) <br />& (1) #8 Bare Copper Ground <br />(See 2013 CEC Table 250.122 <br />(3) #8 (Ll,L2,Neutral) THWN-2 Conductors <br />(See Amp. Calc. B) & (1) #8 AWG THWN-2 Ground <br />in 3/4" EMT conduit min. <br />(See 2013 CEC Table 250.122) <br />200A Rated Bus <br />PV Breaker to installed on opposite <br />end of Main Breaker. <br />CS» <br />200A Main <br />120/240V <br /> JB ---- INV --@-(14) ReneSola JC250M-24/Bb Panels ITIr----1@ <br />MPPT 1 MPPT 2 e <br />Input 1: 14 @ 205° SW Input 3: 14 @ 205' SW - SM -- AC --A---1 NewU **p]Input 2:Input 4: <br />If the existing Main Service Panel <br />does not have verifiable ground <br />electrode. It is the PV contractors <br />responsibility to install a <br />supplemental grounding electrode <br />**Modules individually lugged on <br />continuous ground in the event of a <br />panel being removed from array" <br />1- <br />M I No. C58724 <br />LEGEND <br />LABELS PER INVERTER <br />Junction Box <br />2 <br />0 <br />PV DC Disconnect <br />Operating Current 829A <br />Operating Voltage Vmp 4228V <br />Max System Voltage Vic 595.30 V <br />Short Circuit Current 35A <br />AC Output Current x 125% <br />AC Disconnect <br />AC Output Current 28A <br />Nominal AC Voltage 240V <br />www. Loyd W Martin .com <br />Solar Structures Engineering <br />#2014-313 Structural Only <br /><* Exp. 3-31-15 0 <br />OF C A\1 <br />DISCONNECT RAnNGS <br />DC Disconnect Ratings <br />Disconnect SW Rating= 30A <br />Max Disconnect Volt Rating = 600V <br />AC Disconnect Ratings <br />Disconnect SW Rating = 60A <br />Disconnect Voltage Rating = 240V <br />11iW-1 PowerOne PVI-6000-OUTD-US-A <br />1----1 with Intergral DC Disconnect (240V) <br />- Sunrun Meter <br />L sM | Meter Socket <br />- AC Disconnect "Knife Blade Type" <br />AC Per NEM 6.3 & NEC 690.17 <br />rii@-1 Main panel & Utility Electrical Service <br />L---1 200A Main/ 200A Bus <br />DC & AC Calculations Ampacity Calculations General Notes: <br />System DC Wiring (Strings of 14) <br />Vmpp = (30.2Vdc mpp) * (14 Panels) = 422.8Vdc <br />Voc= (37.3Voc) * (14 Panels) =522.2Vdc <br />Vmax= (522.2) * (114%)= 595.30Vdc <br />' Projected Minimum System Voltage <br />{30.2 V - ((25° - (29°C + 22°)) x -0.0029)} = 30.12 V <br />(30.12 V) x (String of 14) = 421.68 V @ Avg High Temp: 29° <br />A) PV to Inverter <br />Wire Ampadty Thermal Derate Factor Number of Conductors <br />2013 CEC (310.16)(CEC 310.16)CEC 310.15(BX2)(a) <br />#10 USE-2,90 degrees C 50 + (22) degrees C (4-6) Max <br />310.15(8*3)(c) <br />(40 Amps)*(0.58) *(0.80) <br />(40 Amps) * (0.58) ' (0.80) = 18.56A > PV A-design (13.79A) <br />1. (28) ReneSola JC250M-24/Bb Modules: (250) Watt Modules wired and listed to UL1703 standards <br />2. (1) PowerOne PVI-6000-OUTD-US-A Inverter with Integrated Arc Fault Protection that meets NEC 690.11. Attached with <br />system electrical specifications and ground fault protected & listed to UL1741 standards. <br />3. Photovoltaic system ground will be tied into existing ground at main service from DC Disconnect/Inverter as per NEC Sec. <br />250.166(B). "The Grounding Electrode Conductor shall not be smaller than the largest conductor supplied by the system and not <br />smaller than #8AWG." <br />Smart Ene Lic. # CA <br />mea <br />.ON <br />Imp = (8.29A) * (1 String) = 8.29A <br />Isc = (8.84A) * (1 String) = 8.84A <br />A-design = (8.84A) * (1.56) = 13.79A -, USE-2 #10 <br />B) Inverter to Main Service Pa,el <br />Wire Ampacity Theme! Derate Factor Number of Conductors <br />2013 CEC (310.16)(CEC 310.16)CEC 310.1(B)(2)(a) <br />#8 THWN-2,90 degrees C 88 degrees F (3) Max <br />4. Equipment operating 150 volts or greater shall only be serviced or replaced by qualified personnel. Field protection may be in <br />the form of conduit, closed cabinet or an enclosure which requires use of tools to open. <br />System AC Wiring <br />Pmax= (227.9 PTC Rating) * (28 Panels) * (96.5% Inv. eff.)= 6157.85 Wac <br />Imp= (6157.85 Wac) / (240Vac) = 25.65A <br />Inverter Maximum Output Current = 28A <br />B-design = (28A) * (1.25) = 35A #8 THWN-2 (35A C/B) <br />(55Amps)*(0.96)*(1.00) <br />(55Amps) · (0.9617 (1.00) = 52.BA > PV B-design (35A) <br />5. Solar Photovoltaic System equipment will be installed in accordance with requirements of Art. 690 of the 2013 CEC. <br />6.Minimum height of conduit above roof to match temperature derating factor. <br />7.Photovoltaic dc conductors entering the building shall be installed in metal conduit AND THE CONDUIT SHALL BE LABELED <br />"CAUTION DC CONDUIr OR EQUIVALENT EVERY 5 FT. <br />8. System Grounding Electrode conductor for PV system to be sized to meet the requirements of both 250.66 (AC) and 250.66 <br />(DC), 690.47(C) not smaller than #8 CU AWG. <br />9. If the existing main service panel does not have a ground rod or ufer, it is the pv contractors responsibility install one. <br />10. SMOKE ALARMS AND CARBON MONOXIDE DETECTORS WILL MEET THE NECESSARY REQUIREMENTS PER CRC <br />R314, R315 Project PEOU <br />Sheet <br />11. UTILITY COMPANY WILL BE NOTIFIED PRIOR TO.ACTIVATION OF THE SOLAR PV SYSTEM.Date 02/26/2014 <br />5 As Noted PV4 <br />DA