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STRING CALCULATIONS <br />ENPHASE: IQ8M-72-2-US (240V) <br />STRING #1 <br />STRING #2 <br />STRING #3 <br />MAX AC CURRENT <br />18.06A <br />18.06A <br />18.06A <br />MICRO INVERTER(S) IN SERIES: <br />11 <br />11 <br />10 <br />NOMINAL VOLTAGE / RANGE 2: <br />211V - 264V <br />211V - 264V <br />211V - 264V <br />MAX AC OUTPUT POWER: <br />3467W <br />3467W <br />3467W <br />ARRAY DC POWER: <br />1440OW <br />TOTAL MAX AC CURRENT: <br />43.33A <br />NUMBER OF CURRENT CARRYING CONDUCTORS <br />PERCENT OF VALUES <br />4-6 <br />.80 <br />7-9 <br />.70 <br />10-2 0 <br />.50 <br />SYSTEM OCPD CALCULATIONS <br />INVERTER MODEL(S): <br />ENPHASE IQ8M-72-2-US (240V) <br /># OF INVERTER(S): <br />32 <br />MAX OUTPUT CURRENT: <br />1.35A <br />(# OF INVERTERS) X (MAX OUTPUT CURRENT) X 125% <= OCPD RATING <br />(32 X 1.35A X 1.25) = 54.17A <= 60A, OK <br />BUSBAR CALCULATIONS - 120% RULE <br />MAIN BUS BAR RATING: <br />225A <br />MAIN DISCONNECT RATING: <br />200A <br />PV OCPD RATING: <br />60A <br />PV OCPD RATING: (MAIN BUS RATING X 120%) - MAIN DISCONNECT RATING >= OCPD RATING <br />(225A X 1.2) - 200A = 70A, >= 60A, OK <br />Conduit & Conductor Schedule <br />TAG <br />QTY <br />WIRE GAUGE <br />DESCRIPTION <br />CONDUIT SIZE <br />CONDUCTOR RATING <br />CONDUCTOR TEMP. RATE <br />AMBIENTTEMP <br />TEMP. DERATE <br /># OF CONDUCTORS <br />DERATE <br />CONDUCTOR RATING <br />W/DERATES <br />CONDUIT FILL <br />1 <br />(2) <br />10 AWG <br />Q-CABLE , COPPER (L1, 1-2) <br />N/A - FREE AIR <br />40A <br />901C <br />26'C <br />1.0 <br />N/A - FREE AIR <br />40.OA <br />N/A - FREE AIR <br />(1) <br />6 AWG <br />THWN-2 COPPER - (GROUND) <br />2 <br />(2) <br />10 AWG <br />THHN/THWN-2, COPPER - (L1, 1-2) <br />3/4" EMT <br />40A <br />901C <br />26'C <br />1.0 <br />1.0 <br />40.OA <br />11.45% <br />(1) <br />10 AWG <br />THWN-2 COPPER - (GROUND) <br />3 <br />(6) <br />10 AWG <br />THHN/THWN-2, COPPER - (L1, 1-2) <br />3/4" EMT <br />40A <br />901C <br />26'C <br />1.0 <br />0.8 <br />32.OA <br />26.72% <br />(1) <br />10 AWG <br />THWN-2 COPPER - (GROUND) <br />4 <br />(3) <br />6 AWG <br />THHN/THWN-2, COPPER - (L1, L2, NEUTRAL) <br />3/4" EMT <br />75A <br />901C <br />26'C <br />1.0 <br />1.0 <br />75.OA <br />36.53% <br />(1) <br />6 AWG <br />THWN-2 COPPER - (GROUND) <br />5 <br />(3) <br />6 AWG <br />THHN/THWN-2, COPPER - (L1, L2, NEUTRAL) <br />3/4" EMT <br />65A <br />75'C <br />26'C <br />1.0 <br />1.0 <br />65.OA <br />36.53% <br />(1) <br />6 AWG <br />THWN-2 COPPER - (GROUND) <br />GROUNDING & GENERAL NOTES: <br />1. PV INVERTER IS UNGROUNDED, TRANSFORMER -LESS TYPE. <br />2. DC GEC AND AC EGC TO BE SPLICED TO EXISTING ELECTRODE <br />3. ANY EXISTING WIRING INVOLVED WITH PV SYSTEM CONNECTION THAT IS FOUND TO <br />BE INADEQUATE PER CODE SHALL BE CORRECTED PRIOR TO FINAL INSPECTION. <br />4. JUNCTION BOX QUANTITIES, AND PLACEMENT SUBJECT TO CHANGE IN THE FIELD - <br />JUNCTION BOXES DEPICTED ON ELECTRICAL DIAGRAM REPRESENT WIRE TYPE <br />TRANSITIONS. <br />5. AC DISCONNECT NOTED IN EQUIPMENT SCHEDULE OPTIONAL IF OTHER <br />AC DISCONNECTING MEANS IS LOCATED WITHIN 10' OF SERVICE DISCONNECT. <br />IOkIA:Zole]OIOIX911[070I0[6119;&-3 <br />1. INTERCONNECTION SIZING, LIMITATIONS AND COMPLIANCE DETERMINED IN ACCORDANCE WITH [NEC <br />705.12], AND [NEC 690.64]. <br />2. GROUND FAULT PROTECTION IN ACCORDANCE WITH [NEC 215.9], [NEC 230.95] AND [NEC 690.5] <br />3. ALL EQUIPMENT TO BE RATED FOR BACKFEEDING. <br />4. PV BREAKER TO BE POSITIONED AT THE OPPOSITE END OF THE BUSBAR RELATIVE TO THE MAIN BREAKER. <br />DISCONNECT NOTES <br />1. DISCONNECTING SWITCHES SHALL BE WIRED SUCH THAT WHEN THE SWITCH IS OPENED THE CONDUCTORS <br />REMAINING LIVE ARE CONNECTED TO THE TERMINALS MARKED "LINE SIDE" (TYPICALLY THE UPPER TERMINALS) <br />2. AC DISCONNECT MUST BE ACCESSIBLE TO QUALIFIED UTILITY PERSONNEL, BE LOCKABLE, AND BE A <br />1f/1.41:112a:3:72F_C1&VAIC67a <br />nr <br />lwvgu�qm <br />5 L A R <br />Revolution Energy Systems Inc. <br />9981 West 190th St <br />Unit K Mokena IL 60448 <br />T: 708-995-1643 <br />SITE INFORMATION <br />CORINNE SHEARER <br />1929 75TH STREET SE <br />EVERETT, WA 98203 <br />AC System Size: 10.40 kW AC / 10.40 kVA <br />DC System Size: 14.40 kW DC <br />Lat, 47.9307418 <br />Long,-122.2057984 <br />(32) CANADIAN SOLAR CS3W-450MS 450 <br />PV Modules <br />(32) ENPHASE IQ8M-72-2-US (240V) <br />Inverter(s) <br />SNOHOMISH COUNTY PUD <br />DRAWN BY: JEROME JAPAL <br />DATE: <br />12/13/2022 <br />ELECTRICAL CALCS - PV06 <br />