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CITY OF SANTA ANA <br />Planning and Building Agency I <br />DC:6.000kW AC:5.538W <br />(NOT CENTER FED) <br />(3) #10 AWG TH"-2 Copper <br />and (1) #8 TH"-2 Copper <br />xwH <br />(N)-ENPHASE <br />COMBINER PANEL <br />GEC in 3/4" EMT <br />000 <br />�ft5A <br />IOKAIC <br />Tag Tag@ <br />(2) Enphase AC Interconnect Cables & # 10 AWG THWN-2 Copper & <br />O <br />PRE T . `.GR <br />FOR MONIott)RWG KEIf <br />N GND <br />2 A <br />(4) <br />(1) #6 AWG Bare Copper EGC (free four (1) #8 THWN-2 <br />Copper GEC in 3/4" EMT <br />O NOT <br />physical damage) in free air (Continuos) trenched portion <br />in 1 "SCH80 PVC <br />IN <br />USE <br />EXISTING <br />BUILDING <br />GROUNDING <br />ELECTRODE <br />UFFER <br />(N) 25A <br />O <br />o 0 O <br />__0) <br />U <br />O <br />L,_� <br />15A <br />(N) -30A AC Disconnect <br />EXISTING <br />Visible Blade <br />Lockable in Open <br />200A Service Panel <br />200A Buss Barr <br />Position Rated 30A with <br />NOT CENTER FED <br />Outdoor <br />SQUARE-D <br />Proposed: <br />25PV breaker in SERVICE <br />Backfed Breaker to be secured @ opposite (load) <br />end of bus from Main Breaker <br />"New Copper ground rod or irreversibly crimped to <br />building's GEC" <br />15A <br />18.15A <br />18.15A* 1.25=22.68A <br />J-Box <br />so 25A PV Breaker o.k <br />String 1 consists of (8) LONGI LR5-54HABB 400M PV Modules connected to (8) <br />IQ8PLUS-72-2-US <br />Microlnverters (97.6% CEC) The Microlnverters' AC Outputs are connected in Parallel@ 240V Split Phase, (13) Maximum units per branch <br />String 2 consists of (7) LONGI LR5-54HABB 400M PV Modules connected to (7) <br />IQ8PLUS-72-2-US <br />Microlnverters (97.6% CEC) The Microlnverters' AC Outputs are connected in Parallel@ 240V Split Phase' (13) Maximum units per branch <br />If existing ufer not found, req'd sis" diameter <br />ground rod 8'0" min embedment and req'd 6'-0" <br />apart between 2 groundings" <br />Wire Sizing Calculations <br />PV MODULE SPECS: <br />String 1: Junction Box to Combiner: 9.68A Max Current X 1.25 (NEC <br />690.8(B)(1)) / .76 ambient tempt correction ( 125°F)=15.92A so IOAWG <br />MICRO -INVERTER SPECS: <br />THWN-2 w/ Cond. Amp Rating of 40A o.k <br />MODULE MANUFACTURER: LONGI <br />INVERTER MANUFACTURER: ENPHASE <br />String 2: Junction Box to Combiner : 8.47A Max Current X 1.25 (NEC 690.8(B)(1)) / .76 ambient tempt correction ( 125°F)=13.93A so IOAWG <br />MODULE MODEL# LR5-54HABB 400M <br />MODULE MODEL # IQ8PLUS-72-2-US <br />THWN-2 w/ Cond. Amp Rating of 40A o.k <br />MAX POWER -POINT CURRENT (Imp): 12.93A <br />MAX INPUT VOLTAGE: 60V <br />Combiner Panel to Service : 18.15A Max Current X 1.25 (Continuous Current) / .91 ambient temp correction( 95°F)=24.93A so IOAWG <br />MAX POWER -POINT VOLTAGE (Vmp): 30.94V <br />THWN-2 w/ Cond. Ampt Rating of 40A o.k <br />OPEN -CIRCUIT VOLTAGE (Voc): 37.05V <br />PEAK OUTPUT POWER(AC): 300W <br />Ungrounded System: <br />SHORT-CIRCUIT CURRENT (Isc): 13.72A <br />NOMINAL AC VOLTAGE: 240V <br />THE DC CIRCUIT MEETS THE REQUIREMENTS. FOR <br />ENPHASE MICROINVERTERS FULLY MEET RAPID <br />MAXIMUM POWER (Pmax): 40OW <br />NOMINAL OUTPUT CURRECT: <br />1.21A <br />UNGROUNDED PV ARRAYS IN NEC 690.35. <br />SHUTDOWN REQUIREMENTS IN THE NEW CODE <br />CEC PTC RATING: 378.30W <br />MAX UNITS PER 20A BRANCH: <br />13 <br />EQUIPMENT GROUND IS PROVIDED IN THE ENGAGE <br />WITHOUT THE NEED TO INSTALL ANY ADDITIONAL <br />CABLE. NO ADDITIONAL GEC OR GROUND IS <br />ELECTRICAL EQUIPMENT <br />CEC WEIGHTED EFFICIENCY: <br />97.6% <br />REQUIRED. GROUND FAULT PRETECTION <br />(GFP) IS INTEGRATED INTO THE MICRO INVERTER <br />ARC FAULT PROTECTION FOR ENPHASE: <br />— pis requirement s for direct currsnl i DCi Arc -Fault Cirourt protecuon and only applaes to systems w-th <br />�C voltages aoove 80 VDC. Enphase % icroinverter systems are exempted from this requirement as they <br />*Location of Installation of NEW equipment will be a MIN of 3 6" <br />always operate wee oe ow 80 Vbn -i+e requrement is basically unchanged from the NEC 2011, and it is <br />.;nnecessar, to ado DC AFCt to an Enphase lAcroirnverter System inslatlebon <br />away from the Gas Meter <br />Code Reference <br />"Cables in discontigious groups of panels to be placed in 3/4" EMT <br />990.11 Arc -Fault Circuit Protection (Direct Current). Photovoltaic sys_-ems with do source <br />crwits cc ouip.,t cjrcu2s or oath. operating at a PV system maximum system voltage of 8(} volts <br />ALL PV SYSTEM COMPONENTS SHALL BE PROTECTED FROM PHYSICAL DAMAGE <br />or greater. Brie,' be protected try a rsted {tic) arc-fsult crc:urt interrupter PV type or other sys* n <br />compoonents ;-steo to provide equilalera Vateccon. <br />Metal enclosures that are not physically continuous from equipment to the grounding electrode shall be made electrically <br />continuous by bonding each end of the raceway or enclosure to the grounding electrode conductor <br />..��,IL <br />ifs �li� • 1�' <br />Class: C46 <br />UITE <br />����A�,192878 C <br />DAtp51) 707-6537 <br />SAPP <br />PHOTOVOLTAIC <br />SOLAR SYSTEM <br />23 10 N 5FURGEON 5T <br />5ANTA ANA, CA, 9 270G <br />ISSUE DATE: <br />6/1 /2025 <br />REV.: DATE:=DESCRIPTION: BY-.---' <br />7 <br />ChELSEA AND CARTER <br />5AFF <br />AFN#0030G I I I <br />23 10 N 5FURGEON 5T <br />SANTA ANA, CA, 9 270G <br />TEL(7GO)-473-G2G5 <br />-DRAWN BY: CHK.: APV.: <br />MR MR MR <br />STAMP: <br />Kevi,w La f'ferhq <br />KEVI N LA1=I=ERTY <br />CONTRACTOR C4G <br />EET <br />SINGLE LINE <br />:SHEET NUMBER: <br />SHEET NUMBER <br />E2 <br />CMS <br />