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Raceway 125%of <br /> Wire De-Rate Calculation ID# <br /> Wire Conductor Neutral Ground Raceway Raceway Height Above Output Output Min. Wire Ambient #of Final Dist. Voltage Voltage Conduit <br /> Tag Qty.Size&Type Qty.Size&Type Qty.,Size&Type Size&Type Location Roof Current Current OCPD Rating Temp Cond. Ampacity (Ft) Drop% Fill <br /> ACA (6)#10 AWG THWN-2 (1)#10 AWG THWN-2 3/4"EMT Conduit Above Roof 1" 13A 16.3A 20A 40A X 1 X 0.8 =32A 50 Ft. 240V 0.68% 27.8% <br /> AC.2 (2)#8 AWG THWN-2 (1)#8 AWG THWN-2 (1)#10 AWG THWN-2 3/4"EMT Conduit Exterior Wall "N/A" 37.7A 47.1A 50A 55A X 1 X 1 =55A 5 Ft. 240V 0.12% 24.6% z <br /> AC.3 (2)#6 AWG THWN-2 (1)#6 AWG THWN-2 1"PVC Conduit Exterior Wall "N/A" 37.7A 47.1A 50A 75A X 1 X 1 =75A 5 Ft. 240V 0.08% 17.6% 0 W <br /> H <br /> PV Module 1 Micro-Inverterl Enphase Combiner 4 AC Disconnect#1 IMan Service Panel 1 Q <br /> (26)Silfab_Solar_Prime NTC SIL-430 QD (26)EnphaselQ8A-72-2-US Existingor New: (N)"PV Dedicated" 60A Utility W/50A Fused Existing 200A MSP,Bottom-Fed J <br /> (420W) Max V-oc Input:60V Rating: 80A Sub-Panel,Main-Lug Only AC Disconnect#1, 10,3W,120/240V <br /> Power at STC:430W Max Output Current:1.45A(Each) Monitoring Breaker 1 (N) 15A,2 Pole 2P-KNIFE SWITCH,VISIBLE Utility:Snohomish County Public 0 <br /> Power at PTC:406.8W Max Number Per Branch: 11 PV Breaker 2 (N)20A,2 Pole OPEN 6OA/240V 10KAIC Utility District z <br /> V-oc:38.91V V-mp:33.25V PV Breaker 3 (N)20A,2 Pole EATON CAT#DG222URB OR Interconnection:Line-Side Tap — <br /> I-sc:13.91A I-mp:12.93A Branch Circuit 1(9 Enphase IQ8A-72-2-US) PV Breaker 4 (N)20A,2 Pole EQUIV. Main Breaker De-Rated:No IY <br /> V-oc Temp Coefficient:-0.24%/'C (9 Qty.X 1.45A X 1.25)=16.3125A(20A OCPD) Total 75A Q <br /> Output(I-sc x 1.25 x 1.25):21.7A Branch Circuit 2(9 Enphase IQ8A-72-2-US) F__ x <br /> (9 Qty.X 1.45A X 1.25)=16.3125A(20A OCPD) U o m <br /> Branch Circuit 3(8 Enphase IQ8A-72-2-US) Q U N t 0 <br /> (8 Qty.X 1.45A X 1.25)=14.5A(15A OCPD) IY $.m.0 <br /> ao m <br /> Z O Q M r <br /> O <br /> U «av_ Un <br /> 1 Phase/60 Hz. <br /> a m w�- <br /> (E)200A Rated MSP - <br /> N N <br /> (E)Loads w X <br /> Enphase Combiner Box 3 <br /> (E)Loads 0 <br /> Z Utility: Snohomish County o <br /> O a Un <br /> Public Utility District (2)Pole I— �wm <br /> Q uaA <br /> En hase Main Breaker E E N <br /> Prior to J-Box:Manufacturers Envoy N —— (E)200A Ir ««U a <br /> Q Cable Q u t ~z to <br /> ua <br /> LL U uBOX AC DISCO.1 <br /> With#6 Bare Copper Ground J- Line SideTap z 0 a E <br /> To Utliry Grid _ <br /> Li Li Li Li L1 Underground <br /> L2 L2 L2 frl L2 L2 Service w <br /> z z G PV OCPD in N— <br /> _ 000 2P-20A N U — — Q — N -- N---- R --- ,4 C; rV <br /> a. <br /> G G G Q G G V1 <br /> ab Cl rcul 1 PV OCPD } w <br /> 2P-20A Neutral-Ground N <br /> Li Li Bonded Utility Meter t/) N <br /> L2 L2 <br /> x� 000 <br /> n - #6 AWG Auxiliary electrode crouna Rea <br /> �- Clrcui 2 = Z <br /> a o PV OCPD conductor attaching to the w o <br /> .--I 2P-15A existing grounding electrode (E)GROUNDING t0 w M N m <br /> L7 V Li ELECTRODE Z m N N O Ut <br /> L2 Q L2 wQot r�rrpuNim <br /> 01 <br /> Q m N <br /> zw G 000 U w 3MvmN <br /> W inn °m : <br /> N N <br /> ab Grcui 3 p =�U. Z <br /> � �aw`Z o <br /> 13- <br /> a a <br /> Ambient Temperature Information <br /> PER NEC 705.12 Extreme Min Temp: -4"C <br /> Main Panel Interconnection Information Ambient Temp: 28'C REVISION BLOCK <br /> Bus Bar 1 Rating: 200A Ambient Temp.Adjustments DESCRIPTION DATE <br /> Main Breaker 1 Rating: 200A 0"to 7/8"Above Roof: 61'C Initial Draft of Plans 9/9/24 <br /> PV Back Feed(Actual Load): 47.13A <br /> PV OCPD: 50A Voltage Drop Information <br /> Interconnection Calculation:120%Rule <br /> AC Voltage Drop: 0.88% <br /> Not Applicable Total System Voltage Drop: 02 Design By:CNG SOLAR ENGINEERING,INC. <br /> SHEET <br /> Three Line Diagram � <br /> 1 Scale:NTS <br /> PV-4.1 <br />