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BLD2022-0924_Structural_Calculations_7.13.2022_12.56.46_PM_2987248ENPHASE Q CABLE (2) #12 AWG PV WIRE (1) #6 AWG EGC Q Sup■ •u�■ .......... SuL� = r ■■ass■ •■■■• among m ■■■■■■ •■■■• •■■■� U r1,iiii F2,iiii .......... a3 Mae m i ❑+ ■ _ woman U - ■■■■■ Q C) ����� Of � •oma• C° v rams■ L1�■■■ Q ■ ❑+ iL's •aael 11111111 Nasal ■aee� in Emmons mCO. F _ n■ an U H 90 masson m �U inin ❑+ ❑+ ❑+ 0 FL Of U •oma• seem■ ■Eee• U N1,Iii 2,iiii r:,iii m ❑+ ■ ❑+ .......... Im ❑+ -massNasal a' Uso ■wawa■ •eEE• •aWeg ::::: no PM: m � SSgo S:• ■S■■■ ■aee�71 NOTE: Service Panel does not contain center fed Main Breaker: (2) #10 AWG THWN/THWN-2 (1) #8 AWG GND J BOX 3/4" EMT 16 FEET NEMA3 EXISTING NON CENTER 200A MAIN C/B PV MONITORING DEVICE 15A 2-POLE If 2 #14 AWG THWN/ THWN-2 100A NON FUSED AC DISCONNECT LOCKABLE,BLADE TYPE, INSTALL (4)20A PV =_ NEMA3R �� EXISTING 2-POLE C/B 120 / 240V 225A MAIN (UTILITY REQUIRED) INSTALL 70A 2P CB(PV) SERVICE (8) #10 AWG THWN/THWN-2 INSTALL AT OPPOSITE PANEL (1) #8 AWG GND END OF BUS FROM �� 120/240V, 3/4" EMT 12 FEET MAIN FEEDER CB 1P, 3W n J BOX NEMA3 REEEM (6) #10 AWG THWN/THWN-2 ENPHASE IQ COMBINER 4/4C °o (1) #8 AWG GND 120/240V, NEMA 3R 3/4" EMT 10 FEET 3 #6 AWG THWN/THWN-2 ( ) (6) #10 AWG THWN/THWN-2 (1) #8 AWG GND 3/4" EMT 2 FEET GEC (1) #8 AWG GND ELECRTRODEING SYSTEM - 3/4" EMT 19 FEET (3) #6 AWG THWN/THWN-2 ® (6) #10 AWG THWN/THWN-2 (1) #8 AWG GND J BOX (1) #8 AWG GND 3/4" EMT 2 FEET NEMA3 3/4" EMT 12 FEET ) #10 AWG THWN/THWN-2 r ) #8 AWG GND JI JI U■ 2 rmamma ■ .......... swoon ■ - - Sae■■n' Nasal Q ■a■■• •NEE■ •EWNE■ � U ■EEm■ ■SEE■ ■EWES■ m coma• •emm■ ■ass■■ J BOX NEMA3 ■ ❑+ j ❑+ ■ ❑+ ■ .......... U a■■■■■ mason •aeon■ z - aw■as■ •eEE• •anew• U ■■Swam ■■NEE ■••EE• m Of ■■■■■■ S■■■■ ■mwww� U LiJaaao 2�soon .......... r::g 39 SOLARIA 400 WATT MODULES 39 ENPHASE IQ8M MICROINVERTERS MAIN METER PV ARRAY RATING WIRE SIZE CALCULATION BRANCH CIRCUIT -A BRANCH CIRCUIT -A Number Modules 10 PowerXT-400R-PM Solaria 400 Watt Number OF Microinverters in Circuit 10 Number Microinverters 10 Enphase IQ8M Microinverters IQ8M-72-2-US(240V) Microinverter Maximum Output Current (A) 1.35 Total DC Wattage (Watts) Watts STC, (Watts/Module) 10 * 400 = 4000 Branch Circuit Total Current (A) 10 * 1.35 * 1.25 =16.87 Array Currents 1-SC 9.82 A 1-MP 9.41 A Breaker Size Per Branch Circuit (A) 20 Module Voltage V-OC 1 51.1 IV V-MP 1 42.4 IV BRANCH CIRCUIT -B BRANCH CIRCUIT - B Number Modules 10 1 1 PowerXT-40OR-PM I Solaria 400 Watt Number OF Microinverters in Circuit 10 Number Microinverters 10 1 1 Enphase IQ8M Microinverters I IQ8M-72-2-US(240V) Microinverter Maximum Output Current (A) 1.35 Total DC Wattage (Watts) Watts STC, (Watts/Module) 10 * 400 = 4000 Branch Circuit Total Current (A) 10 * 1.35 * 1.25 =16.87 Array Currents 1-SC 9.82 A I -MP 9.41 A Breaker Size Per Branch Circuit (A) 20 Module Voltage V-OC 51.1 V V-MP 42.4 V BRANCH CIRCUIT - C BRANCH CIRCUIT - C Number Modules 10 PowerXT-400R-PM Solaria 400 Watt Number OF Microinverters in Circuit 10 Number Microinverters 10 1 Enphase IQ8M Microinverters IQ8M-72-2-US(240V) Microinverter Maximum Output Current (A) 1.35 Total DC Wattage (Watts) Watts STC, (Watts/Module) 10 * 400 = 4000 Branch Circuit Total Current (A) 10 * 1.35 * 1.25 =16.87 Array Currents 1-SC 9.82 A 1-MP 1 9.41 A Breaker Size Per Branch Circuit (A) 20 Module Voltage V-OC 51.1 V V-MP 42.4 V BRANCH CIRCUIT - D BRANCH CIRCUIT - D Number Modules 9 PowerXT-400R-PM I Solaria 400 Watt Number OF Microinverters in Circuit 9 Number Microinverters 9 Enphase IQ8M Microinverters I IQ8M-72-2-US(240V) Microinverter Maximum Output Current (A) 1.35 Total DC Wattage (Watts) Watts STC, (Watts/Module) 9 * 400 = 3600 Branch Circuit Total Current (A) 9 * 1.35 * 1.25 =15.18 Array Currents 1-SC 9.82 A 1-MP 9.41 A Breaker Size Per Branch Circuit (A) 20 Module Voltage V-OC 51.1 1 V V-MP 42.4 V FROM JBOX TO ENPHASE IQ COMBINER Maximum Continuous Current (A) 16.87 More Than 3 CCC Adjustment Factor 0.7 Adjusted ConductorAmpacity(A) 16.87 / 0.7 = 24.1 Raceway Height From Roof (Temp 39+22=61C) 31/2" # of wire(# BC *2) 8 Ambient Temp Factor Per NEC Table 310.15(b)(2)(a) 0.71 Temp. Derate Factor (max. Continuous current divided ambient tem. Factor (A) 24.1 / 0.71 = 33.94 wire Size from NEC Table 310.15(b)16 10 AWG FROM ENPHASE IQ COMBINER TO MAIN PANEL Total Number Of Microinverters 39 Total Amps From All Microinverters (A) 39 * 1.35 = 52.65 Consider Continuous (A) 52.65 * 1.25 = 65.81 Temp. Derate Factor(0.91 at wall of the Building) (A) 65.81 / 0.91= 72.32 Wire Size from NEC Table 310.15(b)16 6 AWG Ambient Temp Factor Per NEC Table 310.15(b)(2)(a) 0.91 MAIN SERVICE PANEL PV Backfeed Breaker Size (A) 1 70 1 Main Breaker (A) 200 Main Bus Rating (A) 1225 Total Amps On Bus (A) 120% 200 + 70 = 270 1 <= 270(A) CONTRACTOR Northwest Electric and Solar Address: 18001 73rd Ave NE Kenmore WA 98028 Phone number: 206-356-0601 Appointments: nwsolar.com Northwest & Solar ELECTRICAL 1-LINE DIAGRAM CNGINCC�INC Drawn by: New@engineerinc.io DATE: 07/ 1312022 Project Name: 4900 Schneider Property Adress: 8508 218th St SW Edmonds, WA 98026 Project: Scale: PV SYSTEM AS INDICATED PV 2.0 LABEL 1 LABEL 2 LABEL 3 LABEL 4 LABEL 5 LABEL 6 LABEL 7 (STICKER TO BE LOCATED ON CONDUIT WITH DC CURRENT EVERY 4' HORIZONTALLY OR 10' VERTICALLY AND V FROM EACH SIDE OF A BEND) LABEL 8 LABEL 9 (STICKER LOCATED (STICKER LOCATED INSIDE PANEL INSIDE PANEL NEXT TO SOLAR BREAKER) BELOW PV BREAKER) DIRECTORY LABEL 10 (STICKER LOCATED ON THE PV SUB PANEL) (TO BE LOCATED ON SUB -PANEL ONLY WHEN SUB -PANEL IS DEDICATED FOR PV ONLY) LABEL 11 (STICKER LOCATED ON THE MAIN SERVICE PANEL) LABEL 12 SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN THE ARRAY Permanent directory or plaque providing location of service disconnecting means and photovoltaic system disconnecting means, if not located at the same location. (Plaques shall be metal or plastic, with engraved or machine printed letters, or electro-photo plating, in a contrasting color to the plaque. Plaques shall be permanently attached to the equipmenq or in the required location using an approved method that is suitable to withstand the environment to which it is exposed. Plaques and signage shall meet legibility, defacemet, exposure and adhesion requirements of Underwriters Laboratories marking and labeling system 969(UL969). Plaques will have red background & white lettering. INVERTER *if applicable METER 2 © © SUB -PANEL MAIN SERVICE PV SUB -PANEL * if applicable AC PANEL INTEGRATED DISCONNECT 6 7 PV ARRAY J BOX DC DISCONNECT O pplicable © O * if applicable 11 O ® 8 ®O © ® O MARKINGS, LABELS AND WIRING SIGNS A. Purpose: Provide emergency responders with appropriate warning and guidance with respect to isolating solar electric system. This can facilitate identifying energized electrical lines that connect solar panels to the inverter, as these should not be cut when venting for smoke removal B. Main Service Disconnect. 1. Residential buildings - The marking main be placed within the main service disconnect. The marking shall be placed outside cover if the main service disconnect is operable with the service panel closed. 2. Commercial buildings - Tha marking shall be placed adjacent to the main service disconnect clearly visible from the location where the level is operated 3. Markings: Verbiage, Format and Type of Material. a. Verbiage: CAUTION: SOLAR ELECTRIC SYSTEM CONNECTED b. Format: White lettering on a red background. Minimum 3/8 inches letter height. All letters shall be capitalized. Arial or similar font, non bold. c. Material: Reflective, weather resistant material suitable for the environment (use UL - 969 as standard for weather rating). Durable adhesive materials meet this requirement. C.Marking Requirements on DC conduit, raceways, enclosures, cable assemblies, DC combiners and junction boxes: 1. Markings: Verbiage, Format and Type of Material. a. Placement : Markings shall be placed every 10 feet on all interior and exterior DC conduits, raceways, enclosures, and cable assemblies, at turns, above and for below penetrations, all DC combiners and junction boxes b. Verbiage: CAUTION: SOLAR CIRCUIT Note: The format and type of material shall adhere to W. V-3b, c" of this requirement. c. Inverters are not required to have caution markings 1.Marking is required on all interior and exterior DC conduit raceways,enclosures,cable assemblies,and junction boxes,combiner boxes and disconnects. 2.The materials used for marking shall be reflective,weather resistant material suitable for the environment. Minimum 3/8 "letter height; all upper case letters Arial or similar font; Red background with white lettering. 3.Marcking shall contain the words: WARNING: PHOTOVOLTAIC POWER SOURCE. 4.Marking shall be placed adjacent to the main service disconnect in a location clearly visible from the location where the disconnect is operated CONTRACTOR Northwest Electric and Solar Address: 18001 73rd Ave NE Kenmore WA 98028 Phone number: 206-356-0601 Appointments: nwsolar.com & Solar SYSTEM LABELING DETAIL CNGINCCZINC Drawn by: New@engineerinc.io DATE: 0711312022 Project Name: 4900 Schneider Property Adress: 8508 218th St SW Edmonds, WA 98026 Project: Scale: PV SYSTEM AS INDICATED F_PV 3.0