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Home My WebLink About20163602 - Permit (2)Electrical Permit #: 2O163602 Pin #: t{9OO City of Santa Ana Permlt Counter: (714) 647-5800 20 Civic Center Plaza (M-19), Santa Ana, CA 9?702 lnspection Requests: (714) 667-2738 lnspector Section: (714) 647-5853 Project Address: 2545 N Hesperian St Assessor'sParcel: 001-303-20 Lot: 30 Unit: Block: NA Bldg: Tract: 6114 Address Range: Hisloric: No Suite Range: Zoning: Rl + Owner: Address Contractor Address: Phone LE KIM LAN THI 2545 N HESPERIAN ST Santa Ana, CA 927051433 (714) 493-9920 Alpha Electrlc AC/DC 9479 Ellis Avenue Fountain Valley, CA 92708 (714) 493-9920 Fee Type Qt.'" Notes: lnstall pv roo, mounted solar panels. Per Expedited Permit Process For PV Systems Micro-lnverter. Fees paid on 10193408. $0.00 $0.00 $0.00 Fee State Lic #: 961072 Lic Type: C-10 Bus. Lic #: 364036 Workers' Compensation lnsurance:Carrier: Sentlnel lns Co Policy #: 12WECPK4975 Expires: 1110912017 Building Use: Job Type: Nature of Work Planning Conditions Planning Approval By Plan Checked By Permit lssued Byl Subject to Field: Building Permit # Occupancy: Constr Type Code: R.3, U VB cEc 2016 ows eri Date: Date: Date; 93408 Misc. Receipt: Misc. Receipt: Misc. Receipt: Total 0612912017 Account# 1 Every permit issued shell becone invalid unlesstho wo* on the site authoized by such pemit is commenced within 180 days after its issuanco, or if lhe wo* authotizod on the site by such permit is suspended ot abancloned fora penod ol 1E0 days aftet the lifie lhe wo* is commenc6d lnspector MID#: 2017-137162 Tenant Name: Amount Phone Single Family Owelling Solar Solar Panels Fee Total: Paid to Date: Balance Due: APPROVALS DATE tD/stG.COMMENTS Underqround Pole Bases Light Standards Spas, Pool, Founlains Signs (monument) Lile Salety /Low Voltage Fire Alarm / Dampers Communications Cable Buildinq Under Slab / Floor Bonding / Groundinq / EFER -t/;Dl:7 ,Drt tzi il t{5 ers Torqueino Sub-Panels Rool Top Equipment Factory Wired Unit Walls (Conduit) Walls (Rough) Ceilings (Hard & Soflit Rouoh Ceilings (T-Bar Rouoh) [/eter Release Rouqh Service lvleter r?t Notes, Remarks Etc FINAL ELECTRICAL.INSPECTOR HECORD 0N \t R fit I Dt.R l,LL( \li \ l lr)\ I lErtry .rltn lntcr FMrt, or Fr,lry rhr I 6 .r.qr lmm rhc Co r_]dr'L8ns ljr fttr rlr rolr,sn!,crvn' ls..ro]l t B!r'Br. rd PNfci.*r C.d.): Any Cir, or C,rdy shih nnuirr r Fini !' dnFrtur. rllt,. i"ryor.- iL itli\I 'tr r.Fir o, {r(ae. Fir lo n! i.iu(r, d$ EIrr6 rtE qTl..nr rd rxh tmi xr nb ! rirrrl nr'.nhr rhd lr nr (lt ir rl(n<n F.sd r., rh. F'rna.! olrlr Conrrrrm s Liccnsd li* (Ch!fld 9. ctrllmBinS wirh Sdi'n 7ul,.l l)itnnn.r or rlF lturim$.id ln,fc(irr CriL) o.lh.r lrn ih. k.r.nfl rh.rcrhNlrl rh. rn\ir for rrE dllc8Bl ulqni,n Antri'Lrinufs.iri rTlrll.5byr.y rlrlic..r tin . F{nir 5uhj.yh rrF $!li.rnr k, r dv il t'.tuI|y or ft nDrc rhdn fi!. hlntlBlrlolhn IItli)| -1.u!otrnc.olrhcpniIEny.(trn,yrn'Ilorrc\{irhux8.sr\rh.trv'lc.onr|{n\nri(nr.trrll,l"rl{r,nln'rlrlknrrrcnrn -l,.rolrrof rh. Fltnr. @.r.luriEly.ndRlif,8 ffh l$osd snlEdon t' q'n(nd rll F,Fr tsc. ?l!-t- Bu.iE* nn Erarn.Codc: Tn Co,ir-lolt Ltcn< U* drt mr q'llly ro o*w nr |xtF.l, sh hrik t .t imptrnts rhot'n. ..d *hl oflrd! r{, nrn tmFd! *dh. Gddr,(.} lt..6l Fllld nr lli (idr..nx r I tck ljsl -l rn!cruupr urkLr snlio.- 1,.1. 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J'rlnF'ucrl 'rl\li,ullhi{r'.uhiarn,rl+*n cr!'fln.Dcn$ri'nInvtior\ofSc.rii.l7(lIofrlrIrhtr(1xL.,sllrll.li,(hrrhdnn|]lt*nhrh'stn,rtri(N.. civ 6nct u,r b.E hurdrci rl$uvfll dol SNrk)n l(r16 rrrh uhtr(-qk. inrc({ nftl t)t(t lR \ {)\ I lt(b, rrnn unLr Frll! or tsr,,y rhn I r'. lt!n.{ ldcr F,rni,n or oEt ol rhc rutiBr.tol Phlclhm CnL, lnl my l..n< n in fu ll l('ft! el cllirr ?6(o7 L I hdry.rrt ufrlcr Fn{hyofFrlurythd I trrlk.tuI'n 'f,. rr rl* ndl liy sl'kh rhn Fmir ir i.{.! (sâ‚¬ .Irr,civ c I llntl'r Nrm: lJnh.r dn.( - AITLIIANLIEIIJI{IIA! IH'ylni u cr ncn.lry oa lrr,lry oe o, rh. nrlhe iir &{ lnhrifls: D.mh rm ,'.rnri8.A.tErro! Nolificllion r.dcolRcrlhri$ ('t iile tu. P,n6, -Rcquncd ljllcr olNolifi curinl ffi .&riry rr,o(,. r"r"^r .,},/**.,* rceulrri(nN rcluint u\ttjo\ r.n,vnlnrc frn rlplinhL k, rl'i t,t,i(( I .on(1r I nx(r t,rnnrh trirh trll ( rj nlNl(i!xnly r.rrs,tdNror rhit ( irr rll ('.!o tn)..rduF. E (Qr(A-/ 'Jr.-- 6-2q -n Site-Work Air Conditroners 2/t,'ar t f.'1l nrtruSr\ x\ tro\tlei a(tr th. ,,.,.,Q-L1-(1 o.nN'(nr $(h SNlitr' Tlrlrr,'r I),rtr.n I /-/ c ":::'e':-21- t.r ,. Fr(nN*1nn Lftlitr! **SANIA NA,Iffi Planning & Building Agency 20 Civic Center Plaza Ross Annex Smoke & CO Alarm Affidavit Project Address:Lqt (7 nl- t'l o(UAlJ to oo lf,)b,oz- Property Owner:lnn'. IContractor:I LO {1,,(,icense #:o '(- This document moy be lound ot...http://www. santa-ana.o rqlobal (P/ease use a black or blue ink ball-point pen) Permit Number: State of California requires that smoke and carbon monoxide (CO) alarms are installed in residential buildings. California Residential Code (CRC) Section R314.1and R315.2 states in part that existing dwellings be "retrofitted with smoke alarms and carbon monoxide alarms. CRC Section R314.3 and R314.3.3 define the req uired locations. f) eo,r, boxes below must be checked: E[carbon monoxide alarms: Are installed outside of each sleeping area in the immediate vicinity of bedrooms and also on each level of the dwelling. Alarms are required in bedrooms with gas-fired appl nces (i.e. hot water heater, cooktop, furnace) or a fireplace smoke alarms: Are installed in each room used for sleeping, in each hallway outside of a sleeping room, and on each level of the dwelling. Retrofitted detectors may be battery-operated for buildings where no interior alterations are performed. Combination Smoke/CO alarms must comply with all applicable standards and be approved by the State Fire Marshall (SFM). Battery life must be 10 years. I hereby certify that I am the contractor or the property owner of the above project. I further certify that smoke alarms and carbon monoxide alarms have been installed in compliance with the governing Codes and have been tested to be functional. l, also, hereby certify that twill retest the alarms per the ma n ufacture r's instruct lcheck onel tr Licensed Contractor Property Owner NoTE: Ihis sef- certificotion is only used for projects thot ollect the ExTERtoR ol the structure. This process is opplicable ONLY to projects where occess to the interior of the dwelling by a Sonto Ano lnspector is not required. Signature:V Ddte:1-lc-(1 Have this completed form and the job-card readily available on final inspectionl P.O. Box 1988 (M-19) Santa Ana, CA92702 (714) 647-s800 www.santa-ana.orq NSP.O2 2013 CRC tr EXPEDITED PERMIT PROCESS FOR PV SYSTEMS MICRO-[NVERTER The Solar America Board for Codes and Standards (Solar ABCS) Expedited Permit Pro- cess provides a means to differentiate systems thar can be permitred quickly and easily due ro their similarity wirh the majority of small-scale PV systems. Those systems with unique characreristics may be handled with small additions to this Expedited Permit Process or may require much more informarion. depending on the uniqueness o[ the insrallation. The following pages contain forms for the Micro-lnverter to use with the Expedited Per- mir Process. The Standard String, AC Module, and Supply-Side Connecrion forms are also available as interactive PDF files at www.solarabcs.org/perm itting. ln jurisdic- rions rhat have adopted the Expedired Permit Process for PV Systems, rhese forms can be filled out elecrronically and submirted in either printed form and via email. An elec- tronic format is used so that the supplied information is standardized and legible for rhe local jurisdiction. t" k TYPE: OCC, GFOU c\3bE EDI I CONSTR I ) LCOD ZOiEiiffiTIF.R J hto NO il.) 0(n (L ( EXIEDITTD I)EI\MIT PROCESS FOtT I''V SYSTEMS - MICt{O-INVEIITER ct,<.EfitfGffi' I --#l- 4+, ol E '^w \ l I\--- . ExpEDITED PERMIT PRoCESS FOR SMALL-SCETT PV SYSTEMS. MICRO_INVERTER The informarion in rhis guideline is inrended ro help localjurisdicrions and contrac(ors identify when PV system installations are simple..needing only a basic review. and when an installation is more complex. lt is likely that 50%-75% o[ all residential systems will comply with these simple criteria For projects that tail to meet the simple criteria. resolution steps have been suggested to provide as a path to permir approval. Required InJormatiott for Permit: l. Site plan showing location of major components on the property. This drawing need not be exactly to scale. but it should represenr relarive location of components at site (see supplied example site plan). PV arrays on dwellings with a I' perimeter space at ridge and sides may not need separate fire service review. 2. Electrical diagram showing PV array configuration. wiring sysrem. overcurrenr protecuon. rnvefier, disconnects, required signs. and ac connection to building (see supplied standard electrical diagram). 5. Specificarion sheets and installation manuals (if available) for all manufactured components including. but not limited ro, PV modules. inverter(s), combiner box. disconnects, and mounting system. Step 1: Structural Reuiew oI PV Array Mounting System Is rhe array to be mounted on a dehned, permitted roof structurc? { No due to non-compliant rooJ or a ground mount. submit completed worksheet lor lhe structure wKSl Roof InJormatiott: l. Is the roofing type lightweight (Yes = composition, lightweight masonry, metal. etc...) ves E t,to COMP SHINGLE It No. submit completed worksheet for roof structure wfiSl (No = heavy masonry, slate, etc ..) ves nno If No. submit completed worksheetfor rool structure wKSl l. Provide merhod and rype of wearherproohng roof penetrations (e.g. flashing, caulk)FLASHING & CAULK M oun ting Sy st ern Infonnat ion : l. Is lhe mounting structure an beneath the module frames? ineered product designed to mount PV modules with no more than an l8 gap Yes I no IJ No, provide details oI structural attachmmt certifed by a design professional. 2. For manufacrured mounring systems, nll out information on the mounting system below a Mounrno svsrem Manufacrur", QUIGK MoUNT product Name and Model # CLASSIC COMPOSITION MOUNT b Toral wershr ot PV Modules "n6 n",1. 1192 32 lbs c. Total Number of Artachmenr Poinrs 48 weighr per Arrachmenr Point {b + c) 24 84 lbs (it grealer than 45 lbs, see WKS I ) 2. Does the roof have a single roof covering? en d e r Maximum Spacing Between Attachment Points on a Ra maxrmum spacing allowed based on maximum design Total Surface Area of PV Modules (square feet)507 il 48 inches (see produo manual for wind speed) fir Disrribured Weighr of PV Module on RooF (b . 0 2.35 lbs/fr l If distributed weight ol the Pv systen is greater than 5 lbstt', see wKSl. Step 2: Electrical Review o[ PV System (Calculations for Electrical Diagram) In order for a PV system to be considered for an expedited permit pmcess, the following must apply: l. PV modules, uriliry-interactive inverters, and combiner boxes are idenrified for use in PV systems. 2. The PV array is composed of 4 series strings or less per inverter. 3. The total inverter capacity has a continuous ac power outpur 13,440 Watts or less 4. The ac inrerconnection point is on the load side of service disconnecting means (690.64(8)). 5. One of rhe srandard elecrrical diagrams (El.l, El.la, El.l b, or El. tc) can be used to accurately represenr the PV system. lnteractive PDF diagrams are available at www.solarabcs.org/permitting. Fill out the standard etectrical diagram completely. A guide to the electricol diagram is protided to help the applicant understand each blanh to lll in. IJ the electrical system is more complex than the standard electrical diagram can elfectively commuiicate, provide an alternattve diagram with appropriate detail. 2 ExIEDITED PERMIT PRocEss FoR PV sysrEMs - MtcRo-INVERTER I -.t o_! 7a I _- Po a) o -- --t = slN rrs:)o Mt o'o I azls cv uJ S e0rz6 v:)'vNv vlNvs lsNvsrdsrHNsrez :ssalppv alls r '{r)l :aueN 3}ts 0z66 â‚¬6r lflr) ,0/16 v, lenl^ urrpnol e^Y q|] 6,116 a0/:rv 3u3r-rl vHdrY s r..u als s nd eseqd-el urs 'elecs-lleuis rol ueld alrs 'r'r'tcar cta, t;t. 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X I ' E D I T E D I) E I I M I T [. , I I O C E S S FO I I PV SY S T E M S -l t 2 o I I I I t t I tt I l< o I ln O L lo z ll s E l_ lq o lt " d tt , ll ( h rr l r NOTES FoR NAICRO.INVERTER ELECTRICAL DIACRAM Notes for One-Line Standard Electrical Diagram for Single-Phase PV Systems 9.79 El! Av. Forrs Vcr.y CA 92ft13 site Name. KrM Lr Site Address: 25.5N HEspâ‚¬R,aN si s^NrA A{A. cA e2 io5 System AC Size: s o.o twoc src NTS oale SICNS-SIE GUIDE sTCTION 7 PV MOOULT RATINGS @ STC (Gurde Seclron 5) LG SOLAR LG335S2W-G4 OCPD = OVERCURRENT PROTECTION DEVICE NAT|oNAL ELECTRTcAL coDE" REFERENcES sHowN As (NEC XXX XX) NOTES FOR ALL DRAWNGS INVtRTtR RATINGS (Guide Section 4) SIGN FOR DC DISCONNICT THIS PANEL FED BY MULTIPLE SOURCES (UTILITY AND SOLAR) NOTES FOR ARRAY ClRCUll WRING (Gurde Seclron 6 and 8 and Appendrx E) 20 NOTES FOR INVEBTER CIRCUITS (Gurde Seclron I and 9l 1 ) LOWEST EXPECT AMBIENT TEMPERATURE BASED ON ASHRAE MINIMUM MEAN EXTREME DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO INSTALLATION LOCATION LOWEST EXPECTEO AMBIENT TEMP 2 "C 2 ) HIGHEST CONTINUOUSAMBIENTTEMPERATURE AASEDONASHRAE HIGHEST MONTH 2OlO DRY BULB TEMPERATURE FOR ASHRAE LOCATION MOST SIMILAR TO INSTALLATION LOCATION HIGHEST CONTINUOUS TEMPERATURE 4,1 "C 2 ) 2OO9 ASHRAE FUNDAMENTALS 2% DESIGN TEMPERATURES DO NOT EXCEED 47'C IN THE UNITED STATES (PALM SPRINGS, CA IS 44 1"C) FOR LESS THAN 9 CURRENT.CARRYING CONDUCTORS IN ROOF.MOUNTEO SUNLIT CONDUIT AT LEAST O 5" ABOVE ROOF AND USING THE OUTDOOR DESIGN TEMPERATURE OF 47"C OR LESS (ALL OF UNTTED STATES) a) 12 AWG, gO,C CONDUCTORS ARE GENERALLY ACCEPTA6LE FOR MOOULES WTH lsc OF 7.68 aMPS OR LESS v\/HEN PROTECTED SY A 12-AMP OR SMALLER FUSE b) 1O AWG, gO"C CONOUCTORS ARE GENERALLY ACCEPTAELE FOR MODULES wlTH lsc OF 9 6 AMPS OR LESS lVllEN PROTECTEO BY A 1s-AMP OR SMALLER FUSE 1) IF UTILITY REQUIRES A VISIBLE,EREAK SWTCH, DOES THIS SWTCH MEET THE REOUIREMENT? YES E NOD N/Atr 2) IF GENERATION METER REQUIRED DOES THIS METER SOCKET I\4EET THE REOUIREMENT? YES O NO O N/A E 3) SrZE PHOTOVOLTATC POWER SOURCE (OC)CONDUCTORS BASED ON MAX CURRENT ON NEC 690 53 SIGN OR OCPD RATING AT DISCONNECT 4) SIZE INVERTER OUTPUT CIRCUIT (AC) CONDUCTORS ACCOROING TO INVERTER OCPD AMPERE RATING (See Gurde Seclron 9) 5) IOTAL OF ?. INVERTER OUTPUT CIRCUIT OCPD(S) ONE FOR EACH MICRO. TNVERTER ctFcIlTl. ooES TorAL suppLy BREAKERS iciMpLy wrrH i20% BUSBAR EXCEPTTON rN 690 64(B)(2)(a)? YESEI NOfl MOOUIE MAKE MODUTE MODEL MAX PO}1,/ER+OINT CURRENT]IUF) MAX POWER.POINT VOLIAGE (VVP) OPEN.CIRCUIT VOLTAGE (VO') SHORT,CIRCUIT CURRENT (IS' ) -|- 335 8 94 MAXIMUM POWER IPMA:) 462 . 9.48 240MAX SERIES FUSE (OCPD) MAX VOLTAGE (TYP 6OOVO' ) vOC TEMP COEFF lmvfcC or o/"rc L) 60 -0.3 48 1 .17 NOMINAL AC VOLTAGE MAX AC CURRENT 28.08 240 AC OUTPUT CURRENT NOMINAL AC VOLTAGâ‚¬ F a- Io Uo4a- L 2I 1 o F o a-x -----f-------.1 No sign necessary since 690 5'l marking on PV module covers needed information rNvLRrtR MAr(r ENPHASE I rNvERrrRMooEr OOPLUS-72-2-US M ] urx eowen q ro"c I 3oo SIGN FOR INVTRTER OCPD AND AC DrscoNNEcr (rt usE0) soucpv svsren AC POINT OF CONNECTION I rr coerr supplreo. crncle urrrs L MAX OCPD RATING I I PV f OOLKI DOCUfltENf #4 Solor PV Stondord Plon - Simplified Microinverler qnd ACM Systems for One- ond Two-Fomily Dwellings SCOPE: Use thrs plan ONLY for systems u5ing utality-interactive Microanverters or AC Modules (ACM) not erceeding a combined sy5tem AC inverter output rating of 10 kW with a maximum of 3 branch circuits, one PV module per inverter and with PV module l5C maximum of 10-A DC, installed on a roof of a one- or two-family dwelling or accessory structure. The photovoltai. system must interconnect to a single-phase AC service panel of 120/240 Vac with service panel bus bar rating of 225 A or less. This plan is not intended for bipolar systems, hybrid systems or systems that utiliie storage batteries, charge controllers or trackers. Systems must be in compliance with current California Building Standards Codes and local amendments of the authority having jurisdiction (AHJ). Other articles of the California Electrical Code (CEC) shall apply as specified in section 690.3. MANUFACTURER'S SPECIFICATION SHEETS MUST BE PROVIDED for proposed inverters, modules, combiner/junction boxes and racking systems. lnstallation inst.uctions for bonding and grounding equipment shall be provided and local AHJs may require additional details Listed and labeled equipmenl shall be installed and used in accordance with any instructions included in the listing or labeling (CEC 110.3). Equipment intended for use with PV system shall be identified and listed for the application CEC 690.4{D). Applicont ond Site lnformolion Job Address: 2545 N HESPERTAN ST. SANTA ANA,CA92i0(,Permit # tr AC Module (ACM) Number of ACMs installed: Note: Listed Alternoting-Cutent Module (ACM) is defined n CEC 690.2 ond nstolled pet CEC 690.6 Contractor/Eng ineer Name: ALPIIA ELECTRIC AC/DC License fi and class. # 960172 (C-10) Date: 612612017 Phone Number: (714) 493-9920 l. Generol Requirements ond Syslem lnformolion E Microinverter Number of PV modules installed: 24 Number of Branch Circuits, 1., 2 or 3 2 1,.4 Actual number of Microinverters or ACMs per branch circuit: 1 12 2. 12 3._ Total AC system power rating = (Total Number of Microinverters or ACMS) * (AC inverter power output) = 7200 Watts Lowest expected ambient temperature for this plan in Table 1: For -1'to -5" C use 1.12 or for -6" to -10" C use 1.14 correction factors. Average ambient high temperature for this plan: = +47" C Note: For lower expeded ambient or higher average ambient high temperatures, use Comprehensive Standard Plan. 1.5 2. Microinverter or ACM lnformotion ond Rotings Microinverters with ungrounded DC inputs shall be installed in accordance with CEC 690.35 Microinverter or AcM Manufacturer ENPHASE Model TQ6PLUS-72-2-US 1.1 1.2 1.3 2.1 Rated (continuous) AC output po wer: 3oo Watts Signature: Number of Microinverters installed: 24 2.2 NominalAC voltage rating: 240 yollt 2.3 Rated (continuous) AC outp ut current: 1,17 Amps t instolling ACMS, skip ISTEPS 2.41 2.4 Maximum DC input voltage rating 6Z Volts (limited to 79 V otherwise use the Comprehensive 2.5 2.6 Sta ndard Plan) Maximum AC output overcurrent protection device (OCPD)20 Amps Maximum number of microinverters or ACMS per branch circuit l3 3. PV Module lnlormolion (f instolling ACMS, skip to I'TEP 4]) pV Module Manufacturer: LG SOLAR Model LG33s52W-G4 Module DC output power under standard test conditions (5TC)= 335 Watts 3.1 Module Voc at STC (from module nameplate)46.2 Volts 3.2 Module lsc at STC (from module nameplate): 9.48 Amps 3.3 Adjusted PV Module DC voltage at minimum temperature = [Table 1] 43.8 [cannot exceed Step 2.4] 4. Bronch Circuil Outpul lnformolion Fill in [Table 3] to describe the branch circuit inverter output conductor and OCPD size. Use [Table 2] for determining the OCPD and Minimum Conductor size. Microinverter Max. DC lnput IsTEP 2.41 (volts)34 40 46 58 61 64 67 70 11 16 19 Max. Module VOC @ sTC. 1.12 (-1'to -5' C)Corre.tion Factor (Volts) 304 33.0 35.7 38.4 41.1 43.8 46.4 49.1 51.8 54.5 57 1 65.2 61.9 70.5 Max. Module VOC @ STq 1.14 (6'to -10' C) Corredion Factor (Vohs) 35.1 37 -7 40.4 43.0 455 48_2 50.9 53.s 55.1 s88 514 64.O 66.7 69.3 Table 1. Module Vo. at slc gased on Incrter Maximum DC lnput VoltaSe Derlrred from CEC 690.7 Circuit Current (Amps)Circuit Power (Watts)OCPD (Amps)Minimum Condudor Size (AwG) Minimum MetalConduit Sire for 6 Current Carryin8 Conductors 12 2880 15 12 16 3840 20 10 % 20 4800 25 8 I 24 516[30 8 1 Table 2. Branch Circuit OCPD and Minimum Conductor Size' 'CEC 690.8 and 210.19 (A)(1) hctored in Table 2, conductors are copper, insulation must be 90' C wâ‚¬t.rated. Table 2 values are based on maxrmum ambient temperature of 59' C, which rncludes 22' C addet exposed to drect sunlBht, mounted > 0.5 inches above rooftop, < 6 current carrying conductors (3 aircuitslin a circular raceway, Otherwase use Comprehensive Standard Plan. I 37 43 *1,1,, 59.8 62.5 29.8 Branch 1 granch 2 Bra nch 3 Number of Microinverters orACMr lstep 1l l2 t2 Sâ‚¬lected Conductor Size [rable 2] (AwG)t0 l0 20Selected Branch and lnverter Output OCPD lfabb 2] Table 3. PV Arr.y Conffturatlon 9rmmary 5. Solor Lood Center (il used) 5.1 Solar Load Center is to have a bus bar rating not less than 100 Amps. Otherwise use Comprehensive Standard Plan. = 7200 Watts '.CEC 690.8 and 210.19 {AX1) f"ctored in Table 4, conductors are copper, rnsulation must be 90' C wet-rated. Table 4 values are based on marimum ambient temperature of 47' C {no rooftop tempeGture adder an thas calculation), 5 3 current carrying conductors in a circular raceway. Otherwise ule Comprehensive Standa.d Plan. 5.3 Circuit Current = (Circuit Power) / (AC voltage) =30 Amps 6. Point of Conneclion to Utility: 6.1 Load Side Connection only! Otherwise use the Comprehensive Standard Plan. 5.2 ls the PV OCPD positioned at the opposite end from input feeder location or main OCPD location? E Yes D No (lf No, then use 100% row in Table 5) 6.3 Per 705.12(D)(2): (Combined inverter output OCPD size + Main OCPD size) < [bus bar size x {L000/o or 7z1vol) Circuit Power (Wans)OCPo (Amps)Minimum Conductor Size (Aw6) Minimum MetalConduit SireCircuit Current (Amps) t0 10 ,l245760 t5 8 %"28 6120 8 %"32 7680 40 4S 8 %"36 8640 8 %"40 9600 50 41.6 < 10{)00 60 6 Table 4. sol8r Load center and Total lrverter Output OCPD and Conduc-tor Slzei' gus Bar Size (Amps)100 125 125 200 200 /20\225 225 225 100 100 125 150 175 200 t75 200 225Main OCPD (Amps) Maximum Combined lnverter OCPO with 120% of bus bar Gtint (Amps) 20 50 25 60'50 60 60'45 0 50 25 0 50 25 0Maximum Combined lnverter OCPD with 100% of bus bar GtinS {Amps) 0 25 Tablâ‚¬ 5. Maxlmum Combioed h\,erter Ootput Clrcuh ocPD lThrs plan lamats the maximum system size to less than 10 kW therefore the OCPD size is lmrted to 60 A. Reductaon of Main Breaker is not permitted wath this plan. I I 20 I 5.2 Circuit Power see ISTEP 1] I I I \e 7. Grounding ond Bonding Check one of the boxes for whether system is grounded or ungrounded: tr Grounded El Ungrounded For Microinverters with a grounded DC input, systems must follow the requirements of GEC (CEC 690.47) and EGC (CEC 690.43). For ACM systems and Microinverters with unBrounded a DC input follow the EGC requirements of (CEC 590.43). 8. Morkings lnformational note: ANSI 2535.4 provides guidelines for the design of safety signs and labels for application to products. A phenolic plaque with contrasting colors between the text and background would meet the intent of the code for permanency. No type size is specified, but 20 point (3/8") should be considered the minimum. <- cE( 705.12 ( D)(7)cE( 690.5{ & CEC 705.t2(Dx.t) Optional AC Disconnect per AHJ - -> ( EC 690.51 Optional Solar Load Center NOTE: CEC 705.10 roquires a permanent plaque or dirmory denoting all clectric ptrver sources on or in lhe prerresis. a a a WA RNINC INVERTER OUTPUT CONNECTION DO NOT R.E LOCATE THIS OVERCTIRRENT DEVICE WARNING DUAL POWER SOI-IRCES SECOND SOURCE IS PHOTOVOLT-{IC S}'STEM RATED AC OUTPUT CURRENT 28.08 AI\IPS AC NORMAL OPER{T1116 v911465 240 VOLTS PV SYSTEM AC DISCONNECT SECOND SOURCE IS PHOTOYOLTAIC SYSTEM RATED AC OUTPUT CURRENT 28.08 AIITPS AC NORTIAL OPERATINC VOLTAGE 240 VOLTS @ AC PV PV PV H PVPV PV PV .l-l-l k Solor PV Stondord Plon - Simplified Centrol/String lnverler Syslems for One- ond Two-Fomily Dwellings 9. Single-lnverler Line Diogrom Equipment Schedule A lAG DESCRIPTION: (Provide model* if provded) 1 Solar PV Module or ACM: LG SOI.AR LG335S2W-G4 3l5W 2 Mrcroinverter 0f nol ACM): ENPHASL IQ6PLUS-72-2-Us (24Ov ) (24Uv ) lN YbK r LR 3 Junction Box (es): _600 V, NEMA 3R W/ 4 Solar Load Center,Oes)/ No: 240 v, 125A, NEMA 3 5 Performance Meler fes aNo) 6 'Ulility External Oisconn eFwt-itc[ye tto: z4U vA(,, 6UA NbMA JK, 7 Main Elecirical Servrce Panel 711l)1701) Single-Line Diagram for Microinverters or ACMs Check a box for dc system grounding: c Grounded, m ungrounded For ungrounded dc power systems, EGc is required For grounded dc power systems, GEC & EGC are required Refer to CEC 250.120 for EGC installation & Table 250.122 for sizing 'Consull with your localAHJ and /or Ulilrty V\tlen Required Conductor, Cable and Conduit Schedule D TAG Dâ‚¬scription and Conductor Type: (Table 3)Conductor Size Number of Conductors Conduiu Cooductor/ Cablâ‚¬ Type Condurt Size CUrrenl-Carrying Conduclors: (for each branch circu )r Fr{ Nl2 .r,h" F.Nfr EGC It I GEC {when required) B Curent-Carrying Conductors It 3 THWN 2 l/4" Ei\tl' EGC t I GEC (when required) DC ,> ACPV DC -' ACPV G F\- B A oc ,> Ac Branch Clrcult OCPDg (Table 3) Branch 1 oCPD size _UL Branch 2 OCPD siza _20_ Branch 3 OCPD size -NlLSolar Load Center Busba(Section 5) -12!- Main Service Panel OCPDs Main OCPD size: (lable 5) Combined lnverter Output OCPD: ( l\4ain Service Panel Busbar: (Table 5) -?l)L 200 Table 4) .10 tt t tt DC GEC, t roTm--f--I- SOLAR PV STANDARD PLAN - SIMPLIFIED Microinverter and ACM Systems for One- and Two-Family Dwellings ROOF LAYOUT PLAN ALFTIA ELECTRIC AOTC ^.8 LITZ Sdr Fhd@r& Srtlo KII' LE 25'5 N HESPEFIAl\ 5T SA\TA ANA, CA 9270' I ROOF PLAN SCALE l':10'4'| | ARRAY AND ROOF INFO N â‚¬riD0 A afiAcHrrEr{r PorJTs FIFEA'CE53P!'I^,i LCCATEO AT EACh PANEL hllEn 'F IRIJ35 t+, E,CF tvtr:'I I",IODULE TYPE, DII'IENSIONS & WEIGHT I I t" PATTEL I{EIOHT PAtEI- C[aENS,Clr! UMT 9!'EI6HI OF PAIIELS r.vEFlER I nACXrr6 AREI PEF ATT CqMENTI Lg scll]R !G335S2W-O. 4a.t ! y'1 ' :r 12 sF .a.&:t t2 . 0 ll PtiF ap_31 .L_J_---- -- I I :.t: e.2 :.9 771 LA T------- ilE,ii-r PEi ATTACHMENi ato lrf.roER E vES m55 9t(5 2X6e 16 O.C ecf lxfr, ErI! tur{r:}i { rBIA ?.4.Fr:& (o? trgtrll rrl9 ,rxrl'.eFr g)7 :i,T ti.|:lrI L ..-.t"8 rccllg !5 D R{n7aD ARI AT aTto.r 9 roorrl O r ROOf rliâ‚¬i a) {or iav! orlr rG! Er -or1 LAooEi Acca r:E r PV-2 Items required: root layout of all panels, modules, clear access pathway8 and approximate locations of electrical disconnecting means and roof access points. I I c:x2 i - , I tl PV TOOLK'T DOCUMENr #5 Structurql Crilerio for Residentiol Rooftop Solor Energy lnslollotions lJse oI this documenl This toolkit document includes a one-page list of structural criteria for over-the-counter or online approval, as well as attached tables and figures that supplement the criteria and explain their use. This document applies to flush-mounted solar arrays installed on the roofs ofwood-framed one- and two- family dwellings. "Flush-mounted" means the modules are installed parallel to, and relatively close to, the roof surface (see the "solar Array Check" section ofthe Structural Criteria for specific qualifying requirements). This list is intended to be a simple pre-installation check to gain reasonable assurance that lhe design of the solar array complies with the structural provisions ofthe 2013 California Building Code (CBC) and 2013 California Residential Code (CRC). [t is not intended to provide post-installation inspection criteria. Currenlly Used Expedited Solor Permitting Approoches This document is intended for jurisdictions without an expedited process for residential solar structural permitting, altd is not intended to replace or supplant procedures for jurisdictions with an expedited process already in place. Good examples from )urisdictions with provisions for expedited structural permitting include the City of Los Angeles, which exempts residential solar installations from structural permitting if five simple requirements are met, and the East Bay Green Corridori streamlined solar permitting process, which uses structural criteria tailored to typical conditions for that consortium of nine cities. (lntroductory text provicled tor jurisdictioD'.s refer.'nce onll'. Do not attach to Criteria that follorr.) Regionol qnd Site Assumptions This document is based on the following regional and sile assumPtions: . The dwelling is located in a ZERO snow load area (see Map l). . The dwelling is not in Wind Exposure D (within 200 yards ofthe ocean or a large coastal bay). . If in Wind Exposure B (urban, suburban or wooded areas), the dwelling may be located: - in a Special Wind Region (see Map 2) with design wind speeds between 110 and 130mph. - on a tall hill, provided average slope is no steeper than l5%. . If in Wind Exposure C (within 500 yards oflarge open fields or grasslands), the dwelling is: - in a standard I l0 mph design wind speed region. - not on a hill with a grade steePer than 57o. Additionol Options The Chief Building Official (CBO) may consider adding rows to the structural criteria, based on personal judgment and their jurisdiction's conditions and history. Possible additional questions include: . Regional and Site Check - Ifthe jurisdiction is in a mixed snow load area, with zero snow load only at lower elevations, consider asking,"ls the dwelling lower than elevation - feet?" - If the iurisdiction is in a coastal region, consider asking, "ls the dwelling farther than 200 yards from the ocean or a large coastal bay?" to verify the dwelling is not in Wind Exposure D.'- If the.jurisdiction is in a Special Wind Region with design wind speeds between ll5and l30mph, consider verifying that the dwelling is in Wind Exposure B by asking, "ls the dwelling in an urban, suburban or wooded area, and !p! within 500 yards ofopen fields and grasslands?" - Ifthe jurisdiction is in a Special Wind Region with design wind speeds between I 15 and 130 mph, consider verifying that there are no significant topographic wind speed-up effects by asking, "ls the dwelling in a relatively flat area (grade less than 57o) and not within 500 yards ofthe crest ofa tall hill?" Roof Check - Based on the jurisdiction's one- and two-family housing stock and code compliance history, many CBOs will find it reasonable to assume that most dwellings' roof structures were designed to the building code in effect at the time the houses were built. Ifso, the roofstructure code compliance check consists of the Contractori visual roof audit, checking for unusual sagging or deterioration, without requiring additional measurements of existing rafters to check against span tables. - For CBOs ofjurisdictions with evidence ofslructurally deficient one- and two'family housing stock or poor structural code compliance history, the CBO may elect to add the rafter span check option described in the criteria. fhe Struclurol Toolkit ond CRC Wind Speeds The 2013 CRC contains an inconsistency related to wind speeds. Despite referencing ASCE 7-10 as its standard, the 2013 CRC's text and tables use outdated ASCE 7-05 wind speeds. Under the old ASCE 7-05ICBC 2010, the basic design wind speed in most regions ofthe state was 85 mph (max. 3 second gust in 50 years). Under ASCE 7-l)lCBC 2013, the design wind speed has increased to I l0 mph (max. 3 second gust in 700 years). Despite the different definitions of wind speed, design wind pressures remain essentially unchanged. Because the toolkiti structural document is intended to be forward looking, all wind speeds in the toolkit document are based on the ASCE 7-10. This is clearly stated in the caption to the state wind speed map, and in the Table I footnotes. This anticipates an obvious and expected correction to the CRC; otherwise the toolkit would become immediately outdated when the CRC is amended to change the base design wind speed from 85 mph to I t0 mph. 2013 CRC text (ASCE 7-05) wind speeds equivalent to the 2013 CRC and CBC Reference Standard (ASCE 7-10) are shown below. See ASCE 7-10 Table C26.5-6 for additional information. 2013 CRC text ASCE 7-05 85 mph 90 mph 95 mph 100 mph 105 rnph 2013 CRC and CBC Referenced Standard ASCE 7- r0 I l0 mph I l5 mph 120 rnph 126 mph 133 mph ([ntroductory texL provicled for iurisdictioni rel-erence only l)o not attach to Criteria that ti>lkrl'.) Slructuro! Technicol Appendix This toolkit document is supported by a Structural Technical Appendix that describes the technical analysis behind these criteria, which are based on structural engineering principles and the California Building and Residential Codes. The Technical Appendix also provides some additional guidance to address non- conforming itâ‚¬ms, such as when an anchor layout is not based on a solar support component manufactureri guidelines, or when a coastal site is located within 200 yards of the ocean (Exposure D). This document can be found Probobility of Code Complionce The Structural Technical Appendix includes a section that examines the probabilities associated rvith the assumptions behind Table I that allows six feet cross-slope anchor spacing in some circumstances. That statistical analysis estimates thal the probability of code noncompliance for six feet anchor spacing is only 2 in a thousand installations (0.270). Note that probability of structural failure is orders of magnitude lower than the probability of code noncompliance. (Lrtrodu.tor,v tcxt providecl for iurisdictioni reference only: I)o not attach to CI'iteria that lbliow.) Eno (5600t 3 eoool ZERO (a to(loolt (5 5 GOO) zEno (t8 (5401 20to(rm) 5(8001 ZERO ro \36a \ \ Mop l. Colifornio Ground Snow Lood Mop (Rel: ASCE 7-10). The numbers in parentheses represent the upper elevation limits in feet for the ground snow load in psf listed below the elevation. Example; (2400) ZERO in the South San Francisco Bay Area indicates that zero ground snow loads occur from sea level up to an elevation of 2,400 feet. CS indicates "Case Studies" u,here extreme local variations in ground snow loads occur. Non-zero snow load areas and CS areas are excluded frorn the use of this structural toolkit document. See the Technical Appendix for additional information. (lvlap provided for iurisdictionk reterence onh'. Do not atlach to Criteria that [ollou'.) \ (_ ()I 51) gs- \ \ Mop 2. Colifornio Design Wind Speed Mop (Ref: ASCE 7-10). The number outside the parentheses represents the design wind speed in mph. Tlpical design wind speed is I l0 mph. The gray shaded areas on the map indicate "Special Wind Regions" where higher wind speeds may apply. When the project is in a gray shaded area, contact the local building department for the design wind speed. (lV1ap provided for .jurisdi ct ion! relerence onlt'. l)o not atlacll to Crilerirr that follou'. ) / \ I A. Visual Review/Contractor's Site Audit of Existing Conditions: 1) ls the roof a single roof without a reroof overlay? 2) Does the roof structure appear structurally sound, without signs of alterations or significant structural deterioration or sagging, as illustrated in Figure 1? B. Roof Structure Data: l.) Measured roof slope (e.9. 6:12): 2) Measured rafter spacing (center-to-center): 3) Type of roof framing (rafter or manufactured truss): 2. SOLAR ARRAY CH ECKS Elv trN dv tr N 4 :72 l6 inch E Rafte; -EfTruss STRUCTURAT CRITERIA FOR RESIDENTIAL FTUSH.MOUNTED SOTAR ARRAYS 1. ROOF CHECKS A. Flush-mounted Solar Array: 1) ls the plane of the modules (panels) parallel to the plane of the roof? 2) ls there a 2" to 10" gap between underside of module and the roof surface? 3) Modules do not overhang any roof edges (ridges, hips, gable ends, eaves)? B. Do the modules plus support components weigh no more than: 4 psf for photovoltaic arrays or 5 psf for solar thermal arrays? C. Does the array cover no more than half of the total roof area (all roof planes)? D. Are solar support component manufacturer's project-specific completed worksheets, tables with relevant cells circled, or web-based calculator results attached? E. ls a roof plan of the module and anchor layout attached? (see FiBure 2) F. Downward Load Check (Anchor Layout Check): 1) Proposed anchor horizontal spacing (see Figure 2): 2) Horizontal anchor spacing per Table 1: 3) ls proposed anchor horizontal spacing equal to or less than Table 1 spacing? G. Wind Uplift Check (Anchor Fastener Check): 1)Anchor fastener data (see Figure 3): a. Diameter of lag screw hanger bolt or self'drilling screw: b. Embedment depth of rafter: c. Number ofscrews per anchor (typically one): d. Are 5/16" diameter lag screws with 2.5" embedment into the rafter used, OR does the anchor fastener meet the manufacturer's guidelines? N a a a 6 E E tr tr tr o oY N N N N N ON trN 4 :-- o"n-in 4'- o "r-rnIY-trN inch inch t65/ 5 EIY trN 3, SUMMARY B A. All items above are checked YES. No additional calculations are required. E B. One or more items are checked NO. Attach project-specific drawings and calculations stamped and signed by a California-licensed civil or structural engineer 2545 N HESPERIAN ST, Job Addr SANIA ANA, cA e?706 Permit #l Contractor/lnstaller: ALPI{At:LE(ITRICA(l/rr(l License # & Class: ,960172 (C-10) 121p.. 612611{)17 Phone # {71'I)193-99:0Signature Oplionol Addirionol Rofter Spon Check Crilerio I At option of CBO, insert rows (4) to (7) below into table above after row 1.8.(3) ] 1. ROOF CH ECKS B. Roof Structure Data: 4) Measured rafter size (e.9. L3l4 x33/4, nor 2x4ll 5) Measured rafter horizontal span (see Figure 4): 6) Horizontal rafter span per Table 2: 7) ls measured horizontal rafter span less than Table 2 span?OY ON inch _"ft-in _"ft-in El Truss I Rafter Spacing Roof Slope 16" o.c 24" o.c 32" o.c. Photovoltaic Arrays (4 psf max) Flat to 6:12 0" to 26'5'-4"6' -O'5'4" 1.'-4"2' O"1' -Q"7 t72 lo 72:72 77' lo 45' 13:L2 to 24:L2 46' to 63'z-u 2'-8" Solar Thermal Arrays (5 psf max) 4' -0"5' -4"Flat to 6:12 0" to 26"4'-Q" 7:12 to 72.72 27' to 45"L'-4"z',-0"2',-8" 13.L2 lo 24:L2 46" to 63"Calc. Req'd Ca lc. Req'd Calc. Req'd Table 1. Maximum Horizont lAnchor Spachg 2 3 Solar support component manuJacturer's guidelines may be relied upon to ensure lhe array above the roof is properly designed, but manufacturer\ guidelines typically do NOT check to ensure that lhe roof itself can support the concentrated loads from lhe solar array. Table I assumes that the roof complied with the building code in eIJect at the time of construclion, and places limits on anchor horizontal spacing lo ensure that a roof structure is not overloaded under either downward loads or wind uplift loads. Note 4 below lists the basic assumptions upon which this table is based. Table I Notes Anchors are also known as "stand-offs," "feet," "mounts" or "points of attachment." Horizontal anchor spacing is also known as'tross-slope" or "east-west" anchor spacing (see Figure 2). If anchors are staggered from row'to-row going up the roof, the anchor spacing may be twice that shown above, but no greater than 6'-0'l For manufactured plated wood trusses at slopes of flat to 6:12, the horizontal anchor spacing shall not exceed 4'-0" and anchors in adjacent rows shallbe staggered. This table is based on the following assumptions: . The roofstructure conformed to building code requirements at the time it was built. . The attached list ofcriteria is met. . Mean roofheight is not greater than 40 feet. . Roofsheathing is at least 7/l6" thick oriented strand board or ply,r,vood. lx skip sheathing is acceptable. . Ifthe dwelling is in Wind Exposure B (typical urban, suburban or wooded areas farther than 500 yards from large open fields), no more than one of the following conditions apply: - The dwelling is located in a Special Wind Region with design wind speed between I l5 and 130 mph per ASCE 7-10. - The dwelling is located on the top halfofa tall hill, provided average slope is less than l5%. .lfthedwellingisinWindExposureC(within500yardsoflargeopenfieldsorgrasslands),all ofthe following conditions apply. - Design wind speed is I l0 mph or less (not in a Special Wind Region). - The dwelling is not located on the top halfofa tall hill. . The solar array displaces roof live loads (temporary construction loads) that the roof was originally designed to carry. . The Structural Technical Appendix provides additional information about analysis assumptions. .1 7'-4" Non-Tile Roof Tile Roof Rafter SpacingAssumed Vintage Nominal Size Actual Size 76" o.c 24" o.c 32" o.c t4 0.c 32" o.c. 2x4 7%"x3%"9'-70"8',,0"6', -6"8' -6"6'-71"5'-6" 2x6 t4'-4"7t'-9"9' -6"72',-5"1.O',-2"8'-0"Post-1960 2x8 t%"x7%"78',-2"74',-10"12',-O"t5'-9"t2'-t0"10' -3" 8',-6"6',-9"2x4 1.%"x3%"1.r'-3"g',-9"7'-9"10'-3" 2x6 7%"x5%"77',-0"L4',-O"7r'-3"14'-9"72',-O"9' -9"Pre-1960 1.%"x7%"22'-3"18',-0"14'-6"L9',-0"t5'-6"72'-6"2x8 Table 2. Roof Rafter Maximum HorlzontdlSpan (fuet - inches)l Beyond a visual review by the contractor checkingfor unusual sagging or deterioration, some CBOs may want atlditional assurance lhat the roof structure complies with structural building code requirements. Table 2 is an optional table some CBOs may elect to use to provide additional assurance by requiring a check of existing roof rafter spans, and supports optional criteria 1.8.5 and 1.8.6. For post-1960 construction, these span tables match the rafter span tables found in the 2013 Califurnia Building and Residential codes. For pre-1960 construction, the rafter span tables are based on structural calculations with lumber sizes and wood species and grade appropriate for older construction. Note 5 below lists the basic assumplions upon which this table is based. Table 2 Notes: l. See Figure 4 for definition of roof rafter maximum horizontal span. 2. "Non-tile Roof" = asphalt shingle, wood shingle and wood shake, with an assumed roofassembly weight of l0 psf. 3. 'Tile Roof" = clay tile or cement tile, with an assumed roof assembly weight of20 psf 4. Unaltered manufactured plated-wood trusses may be assumed to be code compliant and meet intent of Table 2. 5. This table is based on the following assumptions: . Span/deflection ratio is equal to or greater than 180. . For post-1960 construction, wood species and grade is Douglas Fir-Larch No. 2. . For pre-1960 construction, wood species and grade is Douglas Fir-Larch No. l. . Other wood species and/or grade are also acceptable if allowable bending stress is equal or greater to that listed. (Attach 'I'ablc 2 t)N l-Y ifthc Otxionfll Additional Raltcr Span (lhcck is addctl to the list ol Structural Criteria.) 76" o.c. 7%"\5%" Ridge soq in inches not la excecd ridge tenqth in leel dividad W 20 ,â‚¬ dt\'( ot ,t"dd* doN Uolei ollourPJd only in middle third ol rdftcr depLhl Dt dA ro W'qcr lfol D/4 in did-t:â‚¬lâ‚¬}- fiinimLrn spcirE betrueen lpLcg ol leo.l D. Rdftcr sag in irElEg lo excad rofter tâ‚¬iqth in lccl diyided by 20. NoL.lres deeqr *d1 Yat f.lOT ol tourd alorâ‚¬ lr? or bDlloali edqe ol ro+ler - Verify thot w diqorl,dl or verlic,nl t@f trusg m?rnberg aa cvl ff nokd '- rBard'. Holthi notchee dl dl of roftâ‚¬rs OK Al,erc rofle.s a'e visible f.q11 qLlia l/6qleriida ol roof, visr.,otly aeview "ofLrato verify thot no significdrt structurol deaol or q\-reqired fi.c d6 qe exisl3 Figure l. Roof Visuol Structurol Review (Conlroclor's Site Audit) of Existing Condilions. The site auditor should verify the following. l. No visually apparent disallowed rafter holes, notches and truss modifications as shown above. 2. No visually apparent structural decay or unrepaired fire damage. 3. Roofsag, measured in inches, is not more than the rafter or ridge beam length in feet divided by 20. Rafters that fail the above criteria should not be used to support solar arrays unless they are first strengthened \rdoo rot - fiodoh lnf@l Rd.l D- Rofter Dcpth 1 T$ 63 &P ;3!r + Figure 2. Somple Solor Ponel Arroy ond Anchor Loyoul Diogrom (Roof Plon). I a .,/ a a It a a a a a a a a a a a a a a a a a A o ! I:?" I1INIiUM EDGE DIS-rANCE EA'H 31DE Figure 3. Typicol Anchor with Log Screw Atlochmenl. ,\n,, LAC 94REI^] ALLG.IED sâ‚¬REI.] IN5lALL,4IIC'] Z'\E ll lq!ffAea2 I$) 6 Figure 4. Definition ol Rsfler Horizonlol Spon. (Auach figure 4 ONLY if the Optional -{dditional Rafter S1,an (lhcck is added to the list ofStrtrctural Criteria.) ffi