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42-008 (4) Wiring Description Special Notes: o w d g Z z z i a o G � Z Meter Type Enphase RGM o _ The standard process for installing a LST in the gutter space. 1)Access the work space and move any obstacles that will be in the way while working 2)Put on the proper PPE 3)Inspect the panel and surrounding area for hazards 4)Remove the panel cover 5)Determine that the panel is suitable for the EST a 6) Determine the location of the new fused disconnect switch(60 Amp minimum)or main circuit breaker enclosure(125 Amp minimum).This must be within 10'of the tap location.If FMC or Sealtite is used it F z cannot be more than 6'and must be bonded on both ends. 7)Install the switch or circuit breaker enclosure.If the main breaker enclosure is being installed in an existing finished wall or finished living space,recess the enclosure if possible. 8)Install metal conduit from main service panel to the new switch or main circuit breaker enclosure.Bonding bushings are required.Minimum 1",but sized as designed and necessary depending on LST wire size. 9)Install COPPER wiring for the LST.#4 Minimum,but sized as designed and required by the LST amperage.Bring the wire in behind all existing wiring in the panel.Enter the panel on the same side as the tap when r possible.Our standard"B-Tap"are rated for 4/0 wire.If an existing service conductor has tape on the exterior,remove the tape before installing the"B-Tap". o 10)Terminate wiring at the fused disconnect switch or the main buss in the new main circuit breaker enclosure. 11)Neutral WILL be BONDED in this enclosure. 12)Locate best location to install the B-Taps and complete the taps in the main service panel.Check and dress all wiring in this panel. W '^ 13)Test power on the LINE SIDE of the main breaker installed in the new main circuit breaker enclosure.If all is good,move on,if not troubleshoot the taps. 14)Install the lock out tag out kit 1S)Take photos of connections and taps and close up the main service panel. r Conduit Runs: 1)All conduit runs shall be sized appropriately for the conductors being installed.The lead electrician is responsible for verifying that the correct conduit size,and type is being installed. 2)Greenfield(flexible metal conduit,FMC)shall be Aluminum,ONLY.Size shall be as designed. 3)Greenfield,PVC,and EMT shall be installed in a neat and workmanlike manner. a.Following building lines b.Square with the building N oX c.Straight and level C z o d.Supported as per the NEC o a a e.Penetrations shall be sealed,inside and out. PVC will require expansion fittings as required by the NEC o Conductor Installation: w 1)DC wiring inside of a building must be installed in metallic conduit. 3 0 2)Any DC wiring installed in conduit will need to be labeled appropriately O1 3)USE-2 cannot be used inside a home even when sleeved in conduit. 4)All wiring shall be sized as designed.Any questions concerning wire size should be directed to the designer or your manager. S)All wiring MUST be THHN-THWN-2 Copper,unless otherwise specified 6)All circuits MU51 be labeled appropriately on both ends with the circuit identification 7)Conductors as much as possible should be installed from the soladeck orjunction box to the PV combiner panel in one continuous length with no additional splices.If splices are necessary,the circuits MUST be identified in the junction box,also.The junction box MUST be sized appropriately and bonded as necessary.The same applies to boxes specifically used as pull boxes. WIRING 8)Care MUST be taken to assure that the conductors are not damaged during installation.Use appropriate pulling compounds,if necessary. 9)The number of conductors/circuits installed in each conduit is listed on the design.This number MUST be adhered to.Conduit fill and de-rating calculations have been done in the design and MUST be followed.If DESCRIPTION it is necessary to change the conductors in a conduit,check with the designer or your manager. 10)Once all conductors have been installed in a conduit,the conduit opening MUST be sealed to prevent air exchange between cold and warm atmospheres that can cause moisture buildup and damage to the interior of the property.Ductseal compound is to be used for this. PV-5 String and Conduit Layout ti Shapiro,Lynne.Residence Electrical Review 5 987 Westhampton Rd.Florence,MA 01062 < o !� Hopkinton,MA Office:Walter Jette w Reviewed By:Michael Laffredo(267)733-4803 w a o Financing:Purchase u Y (32)QCells 265w Panels with(32)M215 Inverters ° LL PV meter type:Enphase RGM Emu location:Interior near the main panel Internet Connection:Bridge Main Electrical Panel: GE(200 Amp)22k AIC Utility:National Grid Y Circuit Calculations:32 M215 inverters x.9/Inverter=28.8 Amps x 1.2S=36 FLA. PV combiner with(3)15 Amp,2 pole circuit breaker,(1)1S Amp,1 pole circuit breaker(for EMU) Interconnection calculation:N/A,Line-Side-Tap Interconnection will be a feeder tap in the gutter space of the existing main electrical disconnect outside in meter/disconnect.From the EST install wiring to a 60 Amp fused disconnect with a 40 Amp fuses mounted to the left of the utility meter/Service disconnect.Wiring from the disconnect switch,will then be installed through the PV meter and then into the PV combiner panel.From the PV combiner panel, a run exterior conduit up the wall following the service drop and onto the roof surface.Continue across the roof surface to the first junction box located under the array on roof A. From the first junction box,run ° conduit towards the second junction box on the same roof.From the second junction box run conduit towards the third junction as shown in the drawing. All roof mounted conduit must be at least 1"above the roof surface and flash supported properly.There will be three circuits of inverters to the roof. r m p i....�. ate...•! Colt ,© o — T�wL{.I�1L• n -a r.nm c G � z o r0 ° `i a < N 4 Z 's STRING& Main PV Disconnnect Interior 0 0 cellar CONDUIT LAYOUT Utility PV Disconnect Exterior 0 0 PV Meter Exterior 0 0 PV Combiner Panel Exterior 0 0 SE Inverter 0 0 0 EMU Interior 0 0 PV-4 Comunication Equipment Bridge Electrical Diagram for Shapiro-8.48 kW DC Photovoltaic Solar Array Calculation for PV Breaker g pry Service Calculation P'VW+reCalculation UA.atawmWlreSimA6AVOG � u $ Calculation for Main PV Breaker&Circuits Mit.anlm Wire Sim 014 AWG d Y►�E 11114 K CAECAe 110 N Wire Calc 2 System arrant= 32 0.9 = 28.eAmps N'1RE 31211if;CAECUt.4TlON Wire CdiC1 2QiliEQ14 NEC Articit TlA � Z E Design Amp.rage= 28.8 125% = 36 Amps 201 W01A W-G Alititske AQ FIil Load Amserage .. N 6 w Q O Main Buss Rating= 200 120% - 240 Amp, Frilto]d An4xrag3 .... 1q.6 S7l4Ce'V Ntaje 241) u ? Y S2rrce YNlala 2A] Lergth 4f Rut IFeetl p) x Existin8 Main Breaker = 200 AmPS Lero0h 41 Am IFeali Ti Load Wty '•.wmto VS On O a Max Solar Breaker 240 (-) 200 = 40 Amps LOW DAY C-Isr,"ila C4r4wler ApPhE 1W. c onwrlimm parW'.I.JdC ar Earth O s u Circuit l l= 12 0.9x125%= 13.SAmps rnMwttr Application Cmllttiara rn Ra;eromrr.Cadoor 04r1wim Arlgc4;y Tape NEC Table llr)-tiiBti161 Circuit N 2= 12 0.9.125%- 13.5 Amps Eadh L'andwitx Type TH1tJ Copp-, C4Mwtor Amts+ -ty fable rl&ti Tade)14-liI8l(ln1 C4rdwior Lcreraon L'rfrDlarrc Circuit r 3= 8 0.9x125%= 9Amps C,3ndtrtor TS—,. THifJ CKpet Circuit r4= 0 0.9.125%- 0Amps Cn ndlrlor L oc Bob- Dry04mc Cktndt itnhrpierah Temxrarve V)'C Canduclw Inedenm T._ Ta,mmi t Terry�atlre 2i•37'r; lA-6�"Y rrgrrature N7��� Terinal TemP!ryure Rtillrg 6rJ'!: crc�iegs= 0 0.9x125%= OAmps poriftoplsNAlatim IJEC)1Qliloo"),yej OtEvoT Circuit 136= 0 0.9 x 125%= 0Amps yrcut Phax l NTa l2 Pl see c4m dtrirrs 6 nrvllxi; D+Maur Ab7ws p•4cr .. ,'rcn+e 73 r+tm to!lit rmvti ilTa�.112 lily'•7f tiirlrt C,uhent-Calryln�CaMwltrs 2 � Circuit#7= 0 0.9+125%- 0Amps inch lo)1,12 n ctll f'o dwty Re4to'N'em Circuit#8= 0 0.9x125%= 0Amps AAwanaOlkTye Temp 60 ON FLi6ON r-: F14lLoydAyr" 263 Circui[r9= 0 0.9x125%= 0Amps Terrreerattre Mile, .. 40 Den F22 ON is Load C4ily PA410ker 1e � " _.._._...__.._..._.._._...._..._......_._...--'--.....- A,nbient Tern^6ulrplPr 1 I) Circuitpl0= 0 0.9x125%= 0Amps Ad)uMedAmlTe IPetlure i 16) 'h .0 ON FON C Qjy ionclirtomNuitcMer 1(I x Termini T—pr,,rdwe Rehrrq (0)'L". C5,c o Ty',e Single Phan 12 pnanc cvMwtors 9 nevf;4! Rewired ewrlir?4r.An,pacily)6 Q Uty al Crrlrt Ct rrenci-Carrylrs3 Corwf r-ir 2 Terminal Ae4urrmnrl AdAllonaiC merr+.ertnn Umduct4m 4 Frill Lt"d A,,P;4 268 0 ..W....._.v_._._..._.._._..._..._..-_. Lond Wily MtillCjn 125 Total C2ty L ume.rtf'ering r.:rnductara ( ......_......_...__.........._.. CaMwtpr Requr>;e+enL Reg2Tad Ter—ind ampawy )IF,d FUI Ltad Art>r 108 Se100e1 Conductor M L4e1 wily Ntitw*.r 126 CnWmf r ArWwty ft 0 Amdml Term Auliliizr 1 i Arntient"Terra Ckvata 1 0 Oily r"imrklri4le Mlillivilec 1.25 lily Cmdirnsra Oerate 10 1'52giredCmrloctararnpactt}• 16n6 +dN5lydAmi;wky 16D Tim,mat I hgwenent %Lf..CTED CONOOKTOR SIZE-e Awn Frill Lofd Aiwa 104 2?I 0tr %TA)Ft x Lernh x Anwes 2 x Q 491 v,0 x36Q Lo W Duty rAinill 1 2i "0...........---..._........._.....°............... Ragired T nail rk�+{hnty 1;5$ 106)x r'.y Nves per Phase 100 Y1 '+41s At,Loyd Terntntli. 2?).16 S.'eN:ed i:mduct,xl Aclual Percent rla4ay.Crap 1)35 C'-0Mwltr Am,act'i ?)0 Ambient Te"V.Garet.. (191 illy GmduN4ra Oerale 116 ._.._�.._._..._.._........... A,JjuMed Arnow-4-0. 21 N Electrical Notes SELECTED C01 DIXTOR SIZE 10 Amp 1)Allequipmentto be lktedand labeledfuBSappliatkm. 2p 01rre,TA4F1 r.Less"r A-VI.2 x 1.24 x)i?,14 46 2)Allcondunorssha11 ber.pp.r,ratedfor90Cand wet envlmnment,unless '4 Ci - ..........................................2r)l .therwis..cnad. 14(il x 1)"I y'sli es Pit phase 1(6)0 r I 3 Working clearancesamuntl al new and existin IeRrkale 1 hall L4f.S Al Load Ten++nda 237 W Z o ge qp pmenes Artllsl Peetd 4`alAryl gimp 1)61 a n, o comply with NEC130.26 p Q ter 4)All wlreminationsshall b rea eappmprLuely labeledanddily visaW. O i u, w Z u 5)Module grounding dips to be installed between motlule frame and module support rail,per gr...dingclip manufanurers lmtructl.n. 3 OJ m H 6)Module Support rail to be bondetl to continuous copper GEC,la WEEK lug per NEC 690.41[). 7)If used PV power suur-breaker to be looted at bottom of bus per NEC 690.64(13)(7). 8)AC mmbiner panels shall be labeled as"Inverter AC Combiner Panel". 9)Luting agency name and number tp be indkated on inverters and modules ELECTRICAL per NEC 110.3(6) CALCULATIONS 110)PV power sourrn breaker tp be suitable for ba k(eed per NEC 690.64(8)(5). PV-3.1 Electrical Diagram for Shapiro-8.48 kW DC Photovoltaic Solar Array 5 o � w � Shapiro,1 e tnikyEKSMbI a5 UMts*a d Y ry 981 Westhampton Rd, w z e Z �:d arnr w Florence,MA 01062 MW UNAU G Y Ct3l4NNEES o twm.rty (Nty] o i _ �tnr ` e Wt[iNl6j �. IEWb1N5t sd.r.w.add mom CH I e"Et5 S�N.N.1 Phe.NN t•••• •• Mn NNkS w• D{*Wg me 4114 am*tt5p7 DNramn Wim � n.ntN NKM 4 I ' tNitRSN Fwac!Mklb lriG9t ry t►,ur.n.drenuu I L hNbtdN [.NU ltkt.Twmo'"t - Ms.WOW 15yz Mm 06222EOL! -_ _� -`lk 215W [rgNr..N6M ( I 1, i�in urrn t1 hn4 hmA2rS u i�rr N,eiW AC Shkrzt 30M I E E.�WSy ilHtt 4l4f 11 s1s121N• 173 N l5lkrp ' Ml.,lf.Gnvs. 1,9 We I ho Ugrn.Nt cno o ib m.N.Cd Omst Wedr.r 1!r{WK.ir tiW vttjY+l r '� p JWAmp ww i I (who" 75 P 1 Wire Calc 2 ]).6•lNNN•iNMllltc�pw I I Yem,tim aliH t'r.N.r l7l9alllm SLi�.lNNN,aN .t{uwr*Un�s I I tH @rN1"ts,Mli tVrifklM 4141 Clq"w Mw/Lnhk eeitrnv xa.rwea AxE.0011-( f I 71 x 1.t2%-, 11.5 w uhm Wire Calc 1 IMkM W.h Log Laekoen� ,l� O+MtN•t EtMn firgN I Drrait Woftr RY{x.ti'ENl Pdret Ud,r N.ne.r INNI P llll7NILN/ I 1'ly,dkt,Y,i.l Oe.LI •i4 moll Mule lkkN Wlo,c � ik l.Wrt SWk IN{p.1uiINT t!�lS Ora T l)tt iWt.!ktNli lstMM�atre Etua CL, (L)U Arm Ix"krtur lvdw Aw Mu I ' I gkN:4CrF HgJNtp6E8 ' C,o,d NN AWrtal `� GZo � woo o a tle km thu411mitin ¢ w z G l s.)s l2ri� 1 an 15 km s 3 0 < Limit Ww.6r m _ ELECTRICAL DIAGRAM PV-3 a Typical section 8 48 kW DC Photovohaic Solar Array do ° Th-s zol y- p'sed of 32 Q Cell 265 Poly Black Frame solar panels The panels are mounted us ng Me Uri roc Solar Moun[soar malmo g li to the b'Idngs 218,spaced at 16 oc.Each solar pa ralrs attached to an Enphase M21560-21_1_-S22 mcro'nverteralso w mounted m the Uri roc Solar Mount 111 re 1 d dly beneath the panel. w ] Z W Q O Thesolarpanelsproduce Xic-1rwhenstruck by sunlight.The DC power is converted to 240 V AC power it the inverter.Micro-inverters are Connected in strings with amaximumnumberef 17 micro-invenels in each string. Thiss stem will be grid tied.Ifthe solar Is duce more than is u,,db the buildln the excess flows back into the y gri pane pro power y 8 power .1ility grid through a net meter to be available for other power users. All metal parts Including solar panel frames,micro-inverters,and mounting rails are grounded using the manufacturers recommended or,unding re ethad and W EEB technology along with 46 AW G g....thing wire. C The building was constructed in 1956-1957. }x' Panel Layout Panel Dimensions 653 in x 39.4 in System Weight 2143 lo, •."`" Panel Weight 43.7 has System Distributed Load 3.7 psf System Square Foatage 575 sq ft Roaf Support 2.8 .- Racking Weight 604 lb, Actual Point Load Mau Spacing 4 ft Miva-Inverler We"ta 140.81bs Total number of ROOf Penetrations 75 Max Allowable Rail Overhang 161, s Members ore Hem,Fir(North)allowing 23516s per inch thread depth Nate 3:Use 5/16"x4"Hex Head Stainless Steel Log Screws Variables No.2:RoofSUpport Members are 2x8 h 32 ft 3ft Pnet Downforce 12.1 psf Nate3:Uniroc Solar Mount Racking Note 4: H 26 ft Wind Downforce 12.1 psf Pnet Uplift -14.6 psf Roof Pitch 40 degrees Wind Uplift -14.6 psf 11 5.5 Load Combinations wMax 120 pit V 90 mph Kt 1 IDI JD2 JD3 jUplift I I Max Span 4 i Snow Land 40 psf Exposure Category B =Dead D 3.7 3.7 33 2.2 psf Actual Span 4 i ry O U Z o Roof Zone 3 A 1 Snow Load 5 40.0 0.0 30.0 0.0 psf Rd 47916s w O o E 575 1 1 DWL• pne[ 0.0 12.1 9.1 -14.6 psf Ru 135 lbs O a Q Total Load P•• 43.7 15.8 42.8 12.4psf Required Thread Depth 0.58 in O 2 w ry Dlstrlb TL 139.2 93.3 11].2 33.8 p1f A-1 Thread Depth 2.25 in N Z w = 3 0 < "DWL:Design Wind Load "•Absolute values are indicated for the calculated quantities of P-Uplift and w-Upl h an Glossary of Terms for Load Calculations h Building Height A Adjustment Factor for height H Building Leas[Horizontal Roof PRch Roof Pitch I Importance Factor of for a single family residence v Basic Wind Speed DESCRIPTION OF Suowlpad Snow Load R Module length perpendiculattobe,,, WORK&LOAD Roef-e Roof2one Rd Pilin t-lad-Maximum Downforce E Effect-h..fA". Ru PointLoad-Uplift CALCULATIONS Roof Zone Setback Length Exposure B Subvii.,inglefamilydwelling Pnet Downforce Net Design Downforce Pressure category Pnet Uplift Net Design Uplift Pressure Kz `' t Topographic Factor P V-2.1 6 9Z7 Shapiro Residence building inspector 987 Westhampton Rd 212 main st Northhampton Ma Florence,MA 01062 p,,. g n 0 z z 2 E Svstem Ratings >��.�, �> !``-,/ ► w a p w 8.48 kW DC Photovoltaic Solar Array z N 6.88 kW AC Photovoltaic Solar Array Eauipment Summary 32 O Cell 265 Poly Black Frame Modules } 1 a 32 Enphase M215-60-2LL-S22 Inverters 75 Roof Attachments .A 6 z b.kv: Sheet Index # .� PV-1 C over - PV-2.1 Description of Work and Load Calculations- a " PV-3 Electrical Diagram PV-3.1 Electrical Calculations i+ PV-4 String and Conduit Layout w ^+ PV-5 Wiring Description PV-6 Equipment Ratings&Signage Governine Codes 2002 National Electric Code Massachusetts Residential Code,8th Edition Underwriters Labratories(UL)Standards OSHA 29 CFR 1910.269 O `" z o ASCE-7-10 w O o o a a O = G G _ z 3 a o F COVER SHEET PV-1