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REVISION <br />REV DATE DESCRIPTION <br />A 9/11/2024 PERMIT PLANS <br />DATE: 9/11/2024 <br />DRAFTED BY: PRIYANGA <br />CHECKED BY: JOHN <br />NAME: VIETNAMESE ALLIANCE CHURCH OF ORANGE <br />PROJECT NO: 2308-02 <br />ADDRESS: 2130 N GRAND AVE, SANTA ANA, CA 92705. <br />COORDINATES: 33.764726, -117.852604 <br />APN: 396-191-44 <br />AHJ: CITY OF SANTA ANA <br />UTILITY: SCE <br />58.85kW DC (STC) SYSTEM, 55.16kW DC (PTC) VALUE, <br />50.00kW AC (NAMEPLATE) SYSTEM, 54.34 kW AC (CEC) VALUE <br />MODULES: (107) ZNSHINE SOLAR ZXM7-SHLD144-550W <br />INVERTER(S): (1) CHINT CPS SCA50KTL-DO/US-480 <br />MLPE: (56) AP SMART RSD-D-20 <br />PAGE NO: E-1.5 <br />PROJECT INFORMATIONSYSTEM INFORMATIONCONTRACTOR INFORMATION <br />THE INFORMATION CONTAINED IN THIS DRAWING IS PROPRIETARY AND <br />CONFIDENTIAL AND SHALL ONLY BE USED FOR THE PURPOSES OF THIS <br />PROJECT. <br />ELECTRICAL <br />CALCULATION <br />ELECTRICAL NOTE: <br />1.THIS INSTALLATION IS TO BE CONSIDERED <br />SUPERVISED. ALL NEW ADDITIONS AND ALTERATIONS TO <br />ANY EQUIPMENT IDENTIFIED IN THIS DOCUMENT MUST BE <br />MADE WITH ENGINEERING SUPERVISION AND ALL WORK <br />MUST BE COMPLETED BY QUALIFIED PERSONNEL. <br />2.ALL EQUIPMENT AND TERMINALS MUST BE MINIMUM <br />75°C RATED. <br />3.ALL CONDUCTORS ARE COPPER, UNLESS OTHERWISE <br />SPECIFIED. <br />4.ALL TERMINATIONS OF ALUMINUM CONDUCTORS SHALL <br />BE PROPERLY INSTALLED WITH BEST PRACTICE <br />PROCEDURES THAT INCLUDE BUT NOT LIMITED TO: USE <br />OF TERMINATION EQUIPMENT RATED FOR ALUMINUM AT <br />THE CONDUCTOR TEMPERATURE, CURRENT, AND <br />VOLTAGE; ALLOWANCE FOR MOVEMENT DUE TO THERMAL <br />EXPANSION/CONTRACTION; EXPOSED ALUMINUM SHALL <br />BE PROPERLY COATED WITH ANTI-OXIDATION <br />COMPOUND; TERMINALS ARE TORQUE AND MARKED TO <br />REQUIRED SETTINGS WITH CALIBRATED DEVICE. <br />5.TAP DISCONNECTS ARE WITHIN THE 10 FOOT PER TAP <br />RULE. <br />6.TAPS ARE MADE USING LISTED DEVICES. <br />MODULE SPECIFICATION <br />MODEL ZNSHINE SOLAR <br />ZXM7-SHLD144-550W <br />MODULE POWER @ STC 550W <br />OPEN CIRCUIT VOLTAGE (Voc)50.10V <br />MAX POWER VOLTAGE (Vmp)41.80V <br />SHORT CIRCUIT VOLTAGE (Isc)13.90A <br />MAX POWER CURRENT (Imp)13.16A <br />INVERTER SPECIFICATION <br />MODEL CHINT CPS <br />SCA50KTL-DO/US-480 <br />POWER RATING 50000W <br />MAX OUTPUT CURRENT 60.2A <br />CEC WEIGHTED EFFICIENCY 98.5% <br />MAX DC VOLTAGE 1000V <br />SCALE: NTS <br />ELECTRICAL CALCULATIONS: <br />VOLTAGE DROP CALCULATION: <br />SYSTEM CHARACTERISTICS: <br />OPERATING VOLTAGE = (MODULE VMP) X (# MODULES / STRING) =41.80V X 16=665.6V <br />MAX OPEN CIRCUIT VOLTAGE = {[((TEMP COEF VOC) X (VOC)) / 100] X [LOW TEMP - STC TEMP] + VOC} <br /> X (# MODULES / STRING) = {[(-0.29 %/°C X50.10V) / 100] X [2°C - 25 °C] +50.10V} X 16=851.65V <br />OPERATING CURRENT = (MODULE IMP) * (# STRINGS) =13.16 A X 7=91.77A <br />SHORT CIRCUIT CURRENT = 1.25 X (MODULE ISC) X (# STRINGS) = 1.25 X 13.90 A X 7=121.1A <br />SYSTEM INFO: <br />58.85kW DC (STC) SYSTEM <br />55.16kW DC (PTC) VALUE <br />50.00kW AC (NAMEPLATE) SYSTEM <br />54.34kW AC (CEC) VALUE <br />(107)ZNSHINE SOLAR ZXM7-SHLD144-550W MODULES <br />(1)CHINT CPS SCA50KTL-DO/US-480 <br />(56)AP SMART RSD-D-20 <br />DC WIRE SIZING <br />MAX CIRCUIT CURRENT = (MODULE ISC) X (HIGH IRRADIANCE)[690.8(A)(1)] X (CONTINUOUS LOAD)[690.53] <br />=13.90 X 1.25 X 1.25 =21.72A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP) [PER TABLE 310.15(B)(2)(a)] X <br />(CONDUIT FILL) [PER TABLE 310.15(B)(3)(a)] X (CONDUCTOR AMPACITY) [PER TABLE 310.15(B)(16)] <br />=0.96 X 0.8 X 40 =30.72A <br />TERMINAL RATING, [PER NEC 110.14(C)] - 10 AWG, 75°C RATED =35.00A <br />35.00A >21.72A SO THE TERMINAL RATING GOVERNS THE CONDUCTOR SIZING <br />ALSO,30.72A >21.72A , AND 10 AWG IS SUFFICIENT. <br />AC WIRE SIZING: <br />MAX AC OUTPUT CURRENT = (MAX INVERTER OUTPUT) X (CONTINUOUS LOAD) [PER NEC 690.52] <br />=60.2 X 1.25 =75.25A <br />ADJUSTED CONDUCTOR AMPACITY = (HIGH TEMP) [PER TABLE 310.15(B)(2)(a)] X <br />(CONDUIT FILL) [PER TABLE 310.15(B)(3)(a)] X (CONDUCTOR AMPACITY) [PER TABLE 310.15(B)(16)] <br />=0.96 X 1.0 X 95 =91.20A <br />TERMINAL RATING, [PER NEC 110.14(C)] - 4 AWG, 75°C RATED =85.00A <br />85.00A >75.25A SO THE TERMINAL RATING GOVERNS THE CONDUCTOR SIZING <br />ALSO,91.20A >75.25A , AND 4 AWG IS SUFFICIENT. <br />INVERTER OVER CURRENT PROTECTION = (INVERTER MAX CURRENT) X (CONTINUOUS LOAD) <br />=60.2 X 1.25 =75.25A ->80A OVERCURRENT PROTECTION <br />MLPE SPECIFICATION <br />MODEL AP SMART <br />RSD-D-20 <br />MAX INPUT VOLTAGE 80 VDC <br />MAX OUTPUT CURRENT 20 ADC <br />OCPD CALCULATIONS <br />MAIN PANEL RATING:800A, MAIN BREAKER RATING:800A <br />120% RULE: (800AX1.2)-800A=160.0A =>ALLOWABLE BACKFEED IS 160A <br />OCPD = INVERTER OUTPUT x NO. OF INVERTERS x 1.25 <br /> =(60.2AX1)x1.25=75.25A=>PV BREAKER/FUSE = 80A <br />ALLOWABLE BACKFEED 160A =>80A PV BREAKER <br />THE DESIGNED INTERCONNECTION MEETS THE 705.12(B)(2) REQUIREMENTS. <br />2130 N Grand Ave <br />10/1/2024