CENTRAL KEYSTONE COUNCIL OF GOVERNMENTS  1610 Industrial Boulevard, Suite 400A  Lewisburg, PA 17837  Photovoltaic (PV) System Checklist PAU UCC-20151-Codes, 2014 NEC: as amended/adopted  Location of Construction, Permit Requirements  Owner Name_  Completed. Application, for Building Permit and Plans Examination. Copy of Zoning Permit (ifr required) (2) copies of this checklist, PV: systems specifications, details, and wiring diagram(s).  Roof Attachment Information  SITE SPECIFIC ENGINEERING SUBMITTED UNDER SEAL & SIGNATURE OF DESIGN PROFESSIONAL Rack System manufacturer installation guidelines & specifications provided Design assumptions provided toi include applicable loads, rooft type, roof slope, and connection details Attachment methods including type, size, ands spacing oft fasteners provided in engineering  Wiring Diagram  SITE SPECIFIC3-LINE ELECTRICAL DIAGRAM The 3-line diagram ist toi include thet following: System kWI rating Microinverters  Stand Alone System  Utility Interactive System Storage batteries Circuit #2, # of inverters_ homerun length_ Circuit #4, # of inverters_ homerun length  Number of modules in series Number of parallel source circuits  Total number of modules  J#ofr microinverters on each branch circuit Total length of acl home run circuit(s)  Circuit #1, # ofi inverters_ homerun length_ Circuit #3, # ofi inverters_ homerun length_  Combiner/unction boxi is identified &1 type/listing information noted Wiring method(s) and sizes between array and combiner/junction identified JOvercurrent protection required with 3 or more parallel strings DEquipment grounding method and wiring type/size identified  The PV dc disconnect is identified-60: amp rated per NEC230.79(D). Manwfocturer/Models, (Iffused disconnect required, identify dc rating, voltage, current &i interrupt rating) NEC690.9(D) Wiring method(s) and sizes between combiner/junction and UL1741 inverter identified Wiring method(s) and sizes between inverter/AC disconnect/nouse disconnect or panel identified The ac disconnect isi identified- - 60 ampr rated per NEC230.79(D). Manufcture/Models,  Dinverter manufacturer, size and ratings provided  Point of connection identified. Ifl load side tap, circuit breaker size(s). System grounding method and wiring type/size identified Inverter Information Manufocturer/Models:  MANUFACTURERSSPECIFICATIONS, LISTING INFORMATION & APPLICABLE RATINGS UL1741 listed equipment &i identified for use ini interactive Photovoltaic Power Systems Continuous output power & input voltage range of inverter provided  PVModule Information Monufacturer/Modell  MANUFACTURERS: SPECIFICATIONS, LISTING INFORMATION & APPLICABLE RATINGS  Ifalternate grounding (i.e. WEEB clips or equal) is to beu used, PV module manufacturer approval needed  Open-circuit voltage (Voc) Maximum permissible system voltage Short-circuit current (Isc) Maximum series fuse rating  Max Power (Pmax) at STC Voltage at Pmax Current at Pmax    CENTRAL KEYSTONE COUNCIL OF GOVERNMENTS  1610 Industrial Boulevard, Suite 400A  Lewisburg, PA 17837  Array Information (Not applicable for microinverter installations)  PROJECT SPECIFIC VOLTAGE & CURRENT CALCULATIONS  Operating' Voltage = (number of modules in series XI module voltage at Pmax) Operating Current = (number of parallel source circuitsx X modules at Pmax) Maximum System Voltage = (VocX1.25) Xnumber ofr modules in series) Short Circuit Current = (Isc) X1.25 Xnumber of parallel source circuits)  Wiring & Overcurrent Protection Conductor ampacities are sufficient  Wire typei is 90 degree C& suitablei for wet location. NEC: 100, Table 310.15(B)(2)lc) Provide adjusted ampacities and calculations (Not applicable for microinverter installations)  Maximum PVs source circuit current (Isc X1.25) Maximum PV source circuit conductor ampacity (Isc) X1.25X1.25)  Maximum PV output circuit conductor ampacity (Isc) X1.25X1.25X# of parallel source circuits) Minimum inverter output circuit conductor ampacity (inverter output in Watts divided by minimum  operating volagex125-minimum inverter output ampacity)  Source circuit overcurrent protection sufficient thel listed maximum series fuse  If thei inverter is listed for no back feed current, overcurrent protection is not necessary for 2 parallel strings Ift thei inverter is not listedi for any back feed current, each source circuit shall have overcurrent protection in compliance with  Overcurrent protection provided with 3 or more parallel strings Overcurrent protection on Inverter Output Circuit is sufficient  PV: system point of connection complies with NEC6 690.64 (A) Supply Side or (B) Load Sider requirements Modifications are not to be made to electrical equipment unless approved by the manufacturer -ie. tapping of bus bars)  Distribution panel rating information  Electrical service panel buss bar rating  PVE breaker same manufacturer as the electrical panel Circuit breaker(s) suitable for backfeed applications arei inuse  Total rating of overcurrent devices supplying power (main +F PVI breaker) less than load center rating. 120% of rating  per NEC 690.64(B)(2)  Bonding fittings used with metal conduit when dc voltage is more than 250V dc per NEC 250.97  Label & Marking Requirements  Labels shall be made of sufficient durability to withstand the environments involved per NEC110.21 Labels/markings shall be permanently: affixed to or adjacent tot the equipment iti isi identifying Labels/marking requirements: (check all boxes that apply toy youri installation) Ground-Fault Protection andI Interruption label on utilityi interactive inverter per NEC 690.5(C) JElectric Shock Hazard label at disconnecting means per NEC6 690.17 DCJ Amcto/ombne/Disconet labels per NEC 690.35(F) Modules shall be marked per NEC 690.51 DC Power Source labeling ati the DC disconnect per NEC690.53 eachr remote source per NEC 690.56(B) Distribution equipment warning label per NEC6 690.64(B)(7)  Identify remote locations for utility & PV system disconnects-permanent plaque or directory providing thel location of  Identify maximum ac operating current & operating ac voltage at ac disconnect per NEC690.54  General Requirements: Alle equipment installations to be provided with working space clearances per NEC: Section 110.26.  Maintain no less than 30 wide x 36 deep working spaces about all electrical equipment.  Signature of: Owner/Contractor,  Print Name_  Date_  Icertify that the above information is true and accurate to the best of my knowledge.