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PHOTOVOLTAIC SYSTEM SPECIFICATIONS1.INTRODUCTIONA.CONTRACTOR TO INSTALL A COMPLETE AND FULLY FUNCTIONAL PHOTOVOLTAIC SYSTEM AS OUTLINEDIN THE DRAWINGS, AND IN ACCORDANCE WITH INDUSTRY PRACTICE AND ALL APPLICABLE CODES ANDSTANDARDS.B.CONTRACTOR MUST HAVE EXPERIENCE INSTALLING SIMILAR SYSTEMS AND MUST BE CAPABLE OFCOMPLETING THIS PROJECT IN A TIMELY FASHION AND WITH THE HIGHEST QUALITY WORKMANSHIPAND MATERIALS.C.INSTALLER/CONTRACTOR MUST HAVE A NABCEP CERTIFIED PV INSTALLER ON THE INSTALLATION CREWIN SUPERVISORY ROLE.D.FOR QUESTIONS REGARDING THIS SPECIFICATION, OBJECTIVES, AND TECHNICAL DETAILS, SUBMITQUESTIONS TO ORANGE COUNTY.2.GENERALA.THE WORK COVERED BY THESE SPECIFICATIONS CONSISTS OF FURNISHING ALL SUPERVSION, LABOR,EQUIPMENT, MATERIALS, AND SUPPLIES AS NECESSARY FOR THE COMPLETE AND SATISFACTORYOPERATING ELECTRICAL SYSTEMS AS SHOWN ON THE PLANS.C.CONTRACTOR SHALL OBTAIN AND PAY FOR ALL PERMITS AND INSPECTION FEES.D.ALL MATERIALS AND EQUIPMENT SHALL BE NEW AND SHALL BE LISTED BY THE UNDERWRITER'SLABORATORIES, INC. OR BY A STATE APPROVED THIRD PARTY TESTING AGENCY FOR THE USE INTENDEDWHERE A STANDARD FOR SUCH MATERIALS AND USE EXISTS. ALL ITEMS OF THE SAME TYPE ANDRATING SHALL BE IDENTICAL AND OF THE SAME MANUFACTURER.E.CONTRACTOR SHALL SUBMIT SHOP DRAWINGS AND CATALOG DATA IN ELECTRONIC FORMAT (PDF) FORALL ITEMS IN THE SCOPE OF WORK, INCLUDING, BUT NOT LIMITED TO, RACEWAYS, BOXES, FITTINGS,CONDUCTORS, WIRING DEVICES, SAFETY SWITCHES, DISCONNECTS, TRANSFORMERS, PANELBOARDS,SWITCHBOARDS, RACKING, MODULES, INVERTERS, ETC. FOR APPROVAL AS APPLICABLE FOR THEPROJECT. ONE COMPLETE SET OF APPROVED SUBMITTALS SHALL BE MAINTAINED AT THE JOB SITE.F.ALL COST ASSOCIATED WITH SUBSTITUTED EQUIPMENT TO COMPLY WITH THE BASIS OF DESIGN,INCLUDING PROVIDING MAINTENANCE ACCESS, CLEARANCE, CONDUIT, WIRING, REPLACEMENT OFOTHER SYSTEM COMPONENTS, BUILDING ALTERATIONS, METHODS, ETC., SHALL BE INCLUDED IN THEORIGINAL BASE BID. NO ADDITIONAL COSTS ASSOCIATED WITH SUBSTITUTED EQUIPMENT WILL BEAPPROVED AFTER BIDS HAVE BEEN ACCEPTED AND ALL COSTS WILL BE THE RESPONSIBILITY OF THECONTRACTOR. CREDITS SHALL BE GIVEN TO THE OWNER WHERE SUCH EQUIPMENT AND METHODSRESULT IN LESS EXPENSE TO THE CONTRACTOR.G.ONE COMPLETE SET OF THE LATEST CONSTRUCTION PLANS OF ALL TRADES SHALL BE MAINTAINED ATTHE JOB SITE. IN ADDITION, ALL ADDENDUMS, BULLETINS, AND/OR SKETCHES SHALL BE INCORPORATEDINTO THE ON-SITE CONSTRUCTION PLANS AS THE JOB PROGRESSES.I.THE CONDUIT AND NEUTRAL SYSTEM SHALL BE GROUNDED AT THE MAIN SERVICE EQUIPMENT ASREQUIRED PER NEC.J.WIRING SHALL BE TESTED FOR CONTINUITY AND GROUNDS BEFORE BEING ENERGIZED. FAULTY WIRINGSHALL BE REPLACED AT NO ADDITIONAL EXPENSE TO THE OWNER. CONTRACTOR SHALL ENSURECOMMISSIONING REPORT IS INCLUDED AS A PART OF CLOSE OUT DOCUMENTS.K.PROVIDE ALL CUTTING AND PATCHING FOR INSTALLATION OF WORK AND REPAIR ANY DAMAGE DONE.M.UPON COMPLETION OF WORK, CONTRACTOR SHALL PRESENT ENGINEER WITH CERTIFICATE OFAPPROVAL FROM LOCAL INSPECTOR AND/OR AUTHORITY HAVING JURISDICTION BEFORE WORK WILL BEAPPROVED FOR FINAL PAYMENT.N.CONTRACTOR SHALL GUARANTEE ALL WORK AND MATERIALS FOR A PERIOD OF ONE YEAR EFFECTIVETHE DATE THE PROJECT IS ACCEPTED BY THE OWNER. ANY IMPERFECT MATERIALS OR WORKMANSHIPSHALL BE REPLACED WITHOUT ADDED COST TO THE PROJECT.O.CONTRACTOR SHALL BE RESPONSIBLE FOR FINAL FIELD VERIFICATION.P.CONTRACTOR SHALL PROVIDE AS-BUILT DRAWINGS TO THE OWNER OR OWNER'S AGENT.Q.IT SHALL NOT BE THE INTENT OF ISSUED PLANS AND/OR SPECIFICATIONS TO SHOW EVERY MINORDETAIL OF CONSTRUCTION. THE CONTRACTOR IS EXPECTED TO FURNISH AND INSTALL ALL NECESSARYITEMS FOR A COMPLETE AND OPERATING SYSTEM.R.THE WORD "PROVIDE" MEANS THAT THIS CONTRACTOR SHALL FURNISH, FABRICATE, ERECT, CONNECT,AND COMPLETELY INSTALL SYSTEMS IN PROPER OPERATING CONDITION. ALL LABOR, PRODUCTOPTIONS, ACCESSORIES AND INCIDENTAL MATERIALS REQUIRED SHALL BE INCLUDED AS PART OF THISWORK TO COMPLETE THE INSTALLATION.S.THE WORD "CONNECT" MEANS THAT THIS CONTRACTOR SHALL PROVIDE (SEE DEFINITION ABOVE) ALLDISCONNECTING MEANS, OVERCURRENT PROTECTION AND WIRING REQUIRED TO PLACE THEEQUIPMENT AND SYSTEMS IN PROPER OPERATING CONDITION AND TO COMPLY WITH CODEREQUIREMENTS.T.IF DURING THE COURSE OF WORK, THE CONTRACTOR DISCOVERS A PROBLEM WITH THE PERFORMANCEOF THE INSTALLATION RELATIVE TO THE PLANS AND SPECIFICATIONS, THE NEC, OR OTHER CODES ORREQUIREMENTS, THE CONTRACTOR SHALL IMMEDIATELY BRING THE PROBLEM TO THE ATTENTION OFTHE SOLAR DESIGNER AND/OR ELECTRICAL ENGINEER FOR RESOLUTION PRIOR TO THE EXECUTION OFTHE WORK.U.WHERE THERE ARE CONFLICTS BETWEEN THE PLANS AND SPECIFICATIONS, THE CONTRACTOR SHALLBRING THE ISSUE TO THE ATTENTION OF THE ENGINEER FOR RESOLUTION PRIOR TO THE EXECUTION OFTHE WORK OR ORDERING ANY MATERIALS. NO ADDITIONAL COSTS SHALL BE WARRANTED WITHOUT ACHANGE TO THE PROJECT SCOPE.W.EXISTING ROOF WARRANTIES MUST REMAIN INTACT.3.WORK INCLUDED/SCOPE OF WORKA.WORK INCLUDES ALL ENGINEERING, DESIGN, MATERIALS, LABOR, EQUIPMENT, ELECTRIC PANELS,BREAKERS, SERVICES, PERMITS, AND INCIDENTALS NECESSARY TO INSTALL COMPLETE PHOTOVOLTAIC(PV) SYSTEM AS SPECIFIED HEREINAFTER, INCLUDING, BUT NOT LIMITED TO, THE WORK INCLUDED INTHIS SPECIFICATION.B.B. SCOPE OF WORK SHALL SPECIFICALLY INCLUDE RETAINING A PROFESSIONAL ENGINEER FOR FINALSEALED PV DRAWINGS BASED ON SPECIFIC SUBMITTAL EQUIPMENT. THIS SHALL BE AT THECONTRACTOR'S EXPENSE.C.PRE AND POST INSTALLATION STRUCTURAL ENGINEER APPROVAL LETTERS FOR THE MODULEMOUNTING SYSTEM, IF REQUIRED BY THE AHJ, ARE THE RESPONSIBILITY OF THE CONTRACTOR.E.THE SYSTEM SHALL BE DESIGNED TO MEET ALL LOCAL SEISMIC AND WIND LOAD REQUIREMENTS.F.ALL PERMITS AND SUBMITTALS REQUIRED BY LOCAL BUILDING COMMISSIONS, AND LOCAL UTILITY.G.ALL NATIONAL AND LOCAL ELECTRIC AND BUILDING CODE REQUIREMENTS SHALL BE MET.H.ALL APPLICABLE ENVIRONMENTAL REGULATIONS SHALL BE MET.I.THE CONTRACTOR SHALL PROVIDE ALL MATERIAL AND LABOR AS REQUIRED TO COMPLY WITH THELOCAL UTILITY REQUIREMENTS AND STANDARDS EVEN WHEN NOT SHOWN ON THESE PLANS.4.WARRANTIESA.THE CONTRACTOR SHALL DESCRIBE IN DETAIL HOW THE EQUIPMENT IS WARRANTED. PROVIDE AMINIMUM ONE YEAR WORKMANSHIP WARRANTY.B.ALL METALS USED IN THE CONSTRUCTION OF THE SYSTEM INCLUDING, BUT NOT LIMITED TO, PVMODULES AND ARRAY SUPPORT STRUCTURES SHALL BE WARRANTED AGAINST DEGRADATION FOR THELIFETIME OF THE SYSTEMC.ALL EXPOSED QUICK CONNECT WIRING SHALL BE WARRANTED AGAINST UV DEGRADATION FOR APERIOD OF 20 YEARS.D.CONTRACTOR SHALL BE A LICENSED GENERAL CONTACTOR AND ELECTRICAL CONTRACTOR IN NORTHCAROLINA.E.PROVIDE A COPY OF CONTRACTOR'S QAQC PROGRAM AND SAFETY PROGRAM WITH BID.F.CONTRACTOR SHALL PROVIDE A PAYMENT AND PERFORMANCE BOND.G.CONTRACTOR SHALL PROVIDE A BID BOND.H.CONTRACTOR SHALL BE PREPARED TO PROVIDE AUDITED FINANCIAL STATEMENTS, IF REQUESTED.5.QUALITY ASSURANCEE.ALL WORK IS TO BE INSPECTED BY THE QUALITY ASSURANCE TEAM FROM PISGAH ENERGY.CONTRACTOR WILL PROVIDE ROOFTOP ACCESS, OPEN ALL ELETRICAL EQUIPMENT, JUNCTION BOXES,PANELS, AND PROVIDE PHOTOS AS REQUESTED.6.GENERAL MATERIALS AND INSTALLATION REQUIREMENTSA.ALL MATERIALS THAT ARE USED OUTDOORS SHALL BE SUNLIGHT AND UV RESISTANT.B.MATERIALS SHALL BE DESIGNED TO WITHSTAND THE TEMPERATURES TO WHICH THEY ARE EXPOSED.C.DISSIMILAR MATERIALS SHOULD BE ISOLATED FROM ONE ANOTHER USING NON-CONDUCTIVE SHIMS,WASHERS OR OTHER METHODS.D.METALS SHALL BE HOT DIPPED GALVANIZED STEEL OR ANODIZED ALUMINUM.E.ALUMINUM SHALL NOT BE PLACED IN DIRECT CONTACT WITH CONCRETE MATERIALS.F.STRUCTURAL MEMBERS SHALL BE CORROSION RESISTANT ALUMINUM, 6061 OR 6063. STRUCTURALMEMBERS SHALL BE PERMITTED TO BE STEEL AS NOTED.G.ALL ELECTRICAL EQUIPMENT SHALL BE RATED FOR THE CURRENT AND VOLTAGE RATINGS NECESSARYFOR THE APPLICATION.H.ALL REQUIRED OVER-CURRENT PROTECTION DEVICES WILL BE INCLUDED IN THE SYSTEM ANDACCESSIBLE FOR MAINTENANCE. EACH SHALL HAVE TRIP RATINGS NO GREATER THAT THE DE-RATEDAMPERAGE OF THE CONDUCTOR IT PROTECTS.I.THE INSTALLATION SHALL BE COMPLETE WITH THE MINIMUM OF IMPACT ON THE ENVIRONMENT.J.THE AREA SHALL BE KEPT CLEAN AND FREE OF OBSTRUCTIONS AT ALL TIMES.K.THE INSTALLATION SHALL BE COMPLETED IN A "WORKMAN LIKE MANNER".L.THE INSTALLATION SHALL BE COMPLETED PER THE MANUFACTURER'S INSTALLATION MANUAL.M.THE INSTALLATION SHALL BE COMPLETED WITHOUT AFFECTING EXISTING PIPING AND/OR WIRES.N.ALL ELECTRICAL CONNECTIONS AND TERMINATIONS SHALL BE FULLY TIGHTENED SECURED AND STRAINRELIEVED AS APPROPRIATE.O.ALL MOUNTING EQUIPMENT SHALL BE INSTALLED TO THE MANUFACTURER'S SPECIFICATIONS.P.ALL CABLES, CONDUIT, EXPOSED CONDUCTORS, AND ELECTRICAL BOXES SHOULD BE SECURED ANDSUPPORTED ACCORDING TO CODE REQUIREMENTS.Q.COMPLETELY ADEQUATE HOUSING SHALL BE PROVIDED FOR ALL MATERIALS STORED ON JOB SITE.ONLY CONDUIT MAY BE STORED OUTSIDE, BUT NOT IN CONTACT WITH THE GROUND.R.SYSTEM INSTALLATION SHALL CONFORM TO MANUFACTURER'S INSTALLATION MANUALS ANDAPPROVED PROJECT DRAWINGS AND SPECIFICATIONS.S.ALL INSTALLATIONS SHALL MEET OR EXCEED OSHA REQUIREMENTS.T.SYSTEM SWITCHING AND METERING EQUIPMENT SHALL HAVE CONVENIENT ACCESS FOR RESETTING ORREPAIR DURING ELECTRICAL OUTAGES, AND REGULAR MONITORING FOR DATA RETRIEVAL.U.FOR MEMBRANE ROOFS, PROVIDE TEMPORARY ROOF MEMBRANE PROTECTION WHERE STORINGMATERIALS ON THE ROOF AND IN HAVY TRAFFIC AREAS USED FOR INSTALLATION WHERE WALKPADSARE NOT INSTALLED. REPORT ANY DAMAGE TO THE ROOF MEMBRANE IMMEDIATELY.7.DISCONNECTSA.DISCONNECT SWITCHES SHALL BE HEAVY-DUTY TYPE IN NEMA 3R ENCLOSURES, UNLESS OTHERWISENOTED, FUSED OR NON-FUSED AS INDICATED. SWITCHES SHALL HAVE REJECTION-TYPE FUSE CLIPS.SWITCHES SHALL BE BY EATON, SQUARE-D, GENERAL ELECTRIC, OR APPROVED EQUAL.B.FUSES LESS THAN 60A SHALL BE CLASS RK5, DUAL-ELEMENT, TIME-DELAY WITH INDICATION.C.FUSES GREATER THAN 60A SHALL BE CLASS J, DUAL-ELEMENT, TIME-DELAY WITH INDICATION.D.A SET OF 3 SPARE FUSES OF EACH SIZE AND TYPE SHALL BE PROVIDED.E.FUSES SUPPLYING AC SOURCE LOAD FROM INVERTER SYSTEMS SHALL BE REVERSE FEED CAPABLE.8.MOUNTING SYSTEMSA.THE MOUNTING SYSTEM SHALL RESULT IN THE INSTALLATION OF A PV SYSTEM THAT MEETS ALL LOCALSEISMIC AND WIND REQUIREMENTS.B.BALLASTED SYSTEMS SHALL BE BASED ON PANEL CLAW FR10 RACKING SYSTEM. ALTERNATE RACKINGMANUFACTURERS INCLUDE UNIRAC AND PEGASUS.C.PITCHED ROOFTOP SYSTEMS SHALL BE BASED ON IRON-RIDGE XR FLUSH MOUNT. APPROVEDALTERNATE MANUFACTURERS ARE UNIRAC, AND SNAPNRACK.D.CONTRACTOR SHALL ENSURE THE RACKING SYSTEM TO BE USED FOR CONSTRUCTION IS COMPATIBLEWITH THE MOUNTING REQUIREMENTS FOR THE SOLAR PANEL USED FOR CONSTRUCTION.E.RACKING SYSTEM PROVIDED MUST BE FEOC COMPLIANT AND QUALIFY AS DOMESTIC CONTENT.F.RACKING SYSTEM PROVIDED SHOULD HAVE A RECENTLY COMPLETED DNV BANKABILITY REPORT.G.FOR BALLASTED SYSTEMS, DESIGN FOR RACKING SYSTEM PROVIDED MUST HAVE COMPLETEDBOUNDARY LAYER WIND TUNNEL TESTING WITHIN THE LAST TWO YEARS.H.FOR BALLASTED SYSTEMS, RACKING SYSTEM PROVIDED MUST BE RAIL BASED AND DESIGNED SUCHTHAT THE SOLAR PANEL SHALL NOT BE CONSIDERED AS PART OF THE LOAD PATH THAT REISIST THEINTERCONNECTION FORCE UNLESS THE PANELS HAVE BEEN EVALUATED OR TESTED FOR SUCH LOADING.I.FOR BALLASTED SYSEMS, RACKING SYSTEM PROVIDED SHOULD INCLUDE INTEGRATED PROTECTIONPADS WITH FRICTION TESTING REPORTS.J.FOR BALLASTED SYSTEMS, RACKING SYSTEM MAIN FASTENING HARDWARE PROVIDED SHOULD INCLUDENYLON TOQUE PATCH OR SIMILAR PREVAILING TORQUE LOCKING ELEMENTK.RACKING SYSTEM PROVIDED MUST INCLUDE 4 CONNECTIONS PER MODULE ALL ATTACHING TO THEAIRY POINTS OF THE LONG SIDE OF THE MODULE FLANGE.L.FOR BALLASTED SYSTEMS, ANY REQUIRED MECHANICAL ATTACHMENTS MUST BE VISIBLE (FORINSPECTION PUPOSES) IN THE WALKWAYS OR ALONG THE NORTHERN AND SOUTHERN EDGES OF THEARRAYS WITHOUT REQUIRING MODULES TO BE MOVED.M.RACKING SYSTEM SHALL BE COMPATIBLE WITH THE SITE CONSIDERATIONS AND ENVIRONMENT. SPECIALATTENTION SHALL BE PAID TO MINIMIZING THE RISK FROM EXPOSED FASTENERS, SHARP EDGES, ANDPOTENTIAL DAMAGE TO THE MODULE OR SUPPORT STRUCTURES. CORROSION RESISTANCE ANDDURABILITY OF THE MECHANICAL HARDWARE SHALL BE EMPHASIZED. THE USE OF FERROUS METALS,WOODS, OR PLASTIC COMPONENTS IS NOT ACCEPTABLE.N.ON MEMBRANE ROOFS, PROVIDE AND INSTALL SLIP SHEETS BETWEEN MOUNTING SYSTEM ROOFCONTACT POINTS AND ROOF SURFACE. SLIP SHEETS SHOULD EXTEND MIN. 2” PAST CONTACT POINT INALL DIRECTIONS. SLIP SHEETS WILL BE THE SAME MATERIAL, THICKNESS, AND COLOR AS THE ROOFMATERIAL.O.FOR BALLASTED RACKING, USE CONCRETE PAVER BLOCKS FOR BALLESTED PV PANELS THAT MEETSPECIFICATIONS IN ASTM C1884P.MOUNTING SYSTEM SHALL COMPLY WITH ROOF MANUFACTURER'S REQUIREMENTS FOR KEEPING ROOFWARRANTY INTACT.9.INVERTERA.APPROVED MANUFACTURERS FOR INVERTERS INCLUDE SOLAREDGE. REFER TO POWER RISER DIAGRAMFOR EXACT SPECIFICATIONS. NO SUBSTITUTIONS WILL BE ALLOWED.B.INVERTERS SHALL BE FACTORY TESTED FOR PERFORMANCE, AND RESULTS SHALL BE INCLUDED IN THE O& M MANUAL.C.ROOFTOP INVERTERS MUST INCLUDE MODULE LEVEL RAPID SHUTDOWN IN ACCORDANCE WITH THECURRENTLY ADOPTED VERSION OF THE NEC.D.ROOFTOP INVERTERS MUST INCLUDE MODULE LEVEL MONITORING AND MODULE LEVEL DC-DCOPTIMIZATION.E.INVERTERS SHALL BE EQUIPED WITH INTERGRAL DC GROUND FAULT DETECTION AND INTERRUPTION.F.INVERTERS SHALL BE EQUIPED WITH MONITORED AD AND DC SURGE PROTECTION.G.THE INVERTER SHALL HAVE A MINIMUM CEC RATED EFFICIENCY OF 97%.H.INSTALLATION SHALL MEET ALL APPLICABLE UL 1699B, UL 1741 SB, IEEE 1547-2018, 2020 NEC CODE, ANDFCC PART 15 CLASS A STANDARDS AND ADDENDA DATED PRIOR TO THE AWARD OF THE PURCHASEORDER FOR THIS PROCUREMENT.J.SOLAREDGE C651U OPTIMIZERS SHALL BE USED, UNLESS OTHERWISE NOTED ON THE PLANS. NOSUBSTITUTIONS WILL BE ALLOWED. REFER TO POWER RISER DIAGRAM.K.THE INVERTER SYSTEM SHALL BE CONNECTED TO THE SOLAREDGE WEB BASED MONITORING PORTALVIA HARDWIRED CONNECTION TO THE BUILDING LOCAL AREA NETWORK. A MONITORING LOGIN WITHFULL ADMINISTRATIVE ACCESS WILL BE PROVIDED TO THE PROJECT OWNER AND/OR OWNERS AGENT.L.ALL CONDUCTORS SHALL BE CONNECTED TO THE INVERTER PER THE MANUFACTURER'SDOCUMENTATION, MAKING NOTE OF RECOMMENDED TERMINATIONS, TORQUE VALUE, AND BOLTSTACK UP DETAILS IF PROVIDED. ALL BUSS BARS, CONDUCTORS, AND TERMINATION SHALL BE CLEANEDPRIOR TO MAKING THE CONNECTION.M.INVERTERS SHALL BE STORED PER MANUFACTURER'S REQUIREMENTS.N.INVERTERS ON SOUTH, EAST, AND WEST FACING WALLS SHALL BE PROVIDED WITH SHADE COVERS ORAWNING TO INCREASE PERFORMANCE AND COMPONENT LIFE. SHADE SPECIFICATIONS SHALL BESUBMITTED TO THE OWNER OR OWNER'S AGENT FOR REVIEW.10.COMBINER BOXA.PROVIDE COMBINER BOX(ES) FOR TERMINATION OF STRINGS AS INDICATED OR AS REQUIRED FOR THEARRAY CONFIGURATION INSTALLED.B.COMBINER BOXES: RATED FOR 1000 V DC; CURRENT RATINGS SUITABLE FOR CONNECTED STRINGS;EQUIPPED WITH FUSEHOLDERS.C.FUSEHOLDERS: TOUCH-SAFE; SUITABLE TO ACCEPT FUSES INDICATED.D.NUMBER OF INPUT CIRCUITS: AS INDICATED OR AS REQUIRED FOR TERMINATION OF STRINGS.E.ENCLOSURE: NEMA 250, TYPE 3R, UNLESS OTHERWISE INDICATED.11.MODULESA.BASIS OF DESIGN FOR PV MODULES IS SEG SEG-595-BTA-BG 595W. ALTERNATE MODULEMANUFACURERS INCLUDE: MISSION SOLAR, SILFAB SOLAR, QCELLS, TRINA SOLAR, JA SOLAR, AND REC.B.PV MODULE USED FOR CONSTRUCTION MUST BE FEOC COMPLIANT AND ELIGIBLE FOR THE FEDERALDIRECT PAY INCENTIVE.B.THE PHOTOVOLTAIC MODULES SHALL BE CERTIFIED BY UNDERWRITER LABORATORIES (UL) STANDARD61730.C.PHOTOVOLTAIC MODULES SHALL BE TESTED IN THE FACTORY FOR DESIGN PERFORMANCE.D.BIDDERS SHALL BE RESPONSIBLE FOR VERIFYING UP-TO-DATE DOCUMENTATION FROMMANUFACTURERS ARE BEING USED.E.PV MODULES SHALL HAVE A MINIMUM 10-YEAR MATERIAL WARRANTY AND A MINIMUM POWEROUTPUT GUARANTEE OF 93% OF THEIR STC RATED POWER AT YEAR 10 AND 84% OF THEIR STC RATEDPOWER AT YEAR 30.12.SYSTEM ELECTRICALA.DC SERIES STRING HOME-RUN CIRCUITS MUST PAIR CONNECTORS THAT MATCH EXACTLY TO WHAT ISINSTALLED ON THE MODULES. NO "COMPATIBLE" LABELED CONNECTORS PERMITTED. ORIGINALWARRANTY AND LISTING FROM THE CONNECTOR MANUFACTURER MUST BE MAINTAINED.B.ADAPTER INTERCONNECTS SHALL BE PROVIDED WHERE APPLICABLE TO MATCH CONNECTORS BETWEENMODULES AND DC OPTIMIZERS, SHOULD CONNECTORS NOT MATCH.C.CONDUCTORS SHALL BE INSTALLED SO THAT NO CONNECTORS ARE EXPOSED TO STANDING WATER.D.ON THE DIRECT CURRENT SIDE, ALL WIRING SHALL BE LISTED FOR AT LEAST THE MAXIMUM OPERATINGVOLTAGE OF THE DC SYSTEM AND TEMPERATURE RATING OF 90°C WET LOCATIONS. ALL CURRENTCARRYING CONDUCTORS SHALL BE ENCLOSED IN CONDUIT/RACEWAY, EXCLUDING MODULEINTERCONNECTIONS AND CONNECTIONS FROM INDIVIDUAL MODULE STRINGS TO THE COMBINERBOXES.13.RACEWAYA.CONDUIT SHALL BE MANUFACTURED BY ALLIED, WHEATLAND, REPUBLIC CONDUIT, WESTERN TUBE, ORAPPROVED EQUIVALENT.B.FOR INTERIOR APPLICATIONS, CONDUIT SHALL BE ZINC COATED EMT EXCEPT WHERE NOT PERMITTED BYCODE OR WHERE OTHERWISE NOTED ON PLANS.C.FOR EXTERIOR APPLICATIONS, USE IMC OR SCHEDULE 40 PVC. SCHEDULE 40 PVC WILL BE PERMITTEDONLY FOR EXTERIOR APPLICATIONS LESS THAN 4 FT IN LENGTH AND WHERE NOT SUBJECT TO PHYSICALDAMAGE. FITTINGS FOR OUTDOOR CONDUITS SHALL BE WATER-TIGHT. CONNECTORS SHALL HAVEINSULATED THROATS.D.EMT FITTINGS SHALL BE COMPRESSION GLAND TYPE, OF MALLEABLE STEEL. CONNECTORS SHALL HAVEINSULATED THROATS. CAST, SET SCREW, OR INDENTER TYPE FITTINGS ARE NOT ACCEPTABLE. ALLFITTINGS FOR EMT SHALL BE MADE OF STEEL.E.USE SCHEDULE 40 PVC BELOW GRADE, CONCRETE SLABS, IN DUCTBANKS.F.ALL INTERIOR RACEWAYS SHALL RUN CONCEALED, UNLESS OTHERWISE NOTED. ALL RUNS SHALL BENEAT AND SQUARE.G.LOW VOLTAGE CABLING NOT SPECIFIED TO BE INSTALLED IN CONDUIT, SHALL BE INSTALLED IN A CABLETRAY SYSTEM OR J-HOOK SYSTEM CONSISTING OF MINIMUM 3/4" DIAMETER HOOKS LOCATED ON 3'-0"CENTERS IN ALL ACCESSIBLE CEILINGS. WHERE THERE ARE INACCESSIBLE CEILINGS, PROVIDE CONDUITFOR ENTIRE LENGTH OF INACCESSIBILITY.H.RACEWAY PENETRATIONS THROUGH FLOOR SLABS AND FIRE-RATED WALLS SHALL BE FILLED WITHIMPERVIOUS, NON-SHRINK GROUT SUFFICIENTLY TIGHT TO PREVENT THE TRANSFER OF SMOKE, WATER,AND DUST. ALL ROOFTOP CONDUIT PENETRATIONS SHALL BE PROPERLY BOOTED OR FLASHED ANDSHALL MEET THE ROOF MANUFACTURER'S REQUIREMENTS FOR KEEPING WARRANTIES INTACT.I.SUPPORT ALL CONDUIT WITH STRAPS AND CLAMPS.J.ALL CONDUIT SHALL BE RUN PARALLEL OR PERPENDICULAR TO BUILDING LINES, WHETHER EXPOSED ORNOT AND SUPPORTED FROM STRUCTURE AND PROPERLY SECURED.H.ROOFTOP CONDUIT RUNS ON PITCHED ROOFS SHALL BE SUPPORTED BY (CLAMPED TO) UNISTRUTATTACHED TO STANDING SEAMS USING S5! U SEAM CLAMPS OR EQUIVALENT.N.ROOFTOP CONDUIT RUNS ON FLAT ROOFS SHALL BE SUPPORTED BY (CLAMPED TO) FIXED STRUTPYRAMIDS. PROVIDE COMPATIBLE SLIP SHEETS BETWEEN ROOF MEMBRANE AND PYRAMIDS.K.WHERE CONDUITS PASS THROUGH A BUILDING EXPANSION JOINT, PROVIDE GALVANIZED EXPANSIONFITTINGS WITH BONDING JUMPERS.L.MINIMUM CONDUIT SIZE SHALL BE 3/4".M.PROVIDE PULL BOXES, SUCH THAT NO SINGLE CONDUIT RUN HAS BENDS IN EXCESS OF 360°. PULLBOXES SHALL BE SUITABLE AND APPROVED FOR THE INTENDED USE.N.ALL CONDUITS INSTALLED UNDERGROUND OR IN CONCRETE SHALL HAVE JOINTS MADE WATERTIGHT BYUSE OF POLYETRA-FLUOROETHYLENE TAPE.O.THE USE OF AC OR NM CABLE IS NOT PERMITTED.P.LIQUID-TIGHT METAL CONDUIT SHALL ONLY BE USED FOR FINAL CONNECTION TO EQUIPMENT AND ALLOTHER ROTATING AND VIBRATING EQUIPMENT, MAXIMUM LENGTH OF 4'-0". LIQUID-TIGHT METALCONDUIT SHALL BE PERMITTED IN CONCEALED AREAS WHERE ALLOWED PER CODE.Q.PROVIDE 'PV SOURCE CIRCUIT' LABELS ON CONDUIT EVERY 10 FEET AS REQUIRED PER CODE.I.ELECTRICAL CONTRACTOR WILL BE RESPONSIBLE FOR INSTALLING EXPANSION JOINTS IN CONDUIT RUNSAS NEEDED.J.PVC CONDUIT MAY BE USED IN DIRECT BURIAL APPLICATIONS.14.OUTLET BOXESA.JUNCTION AND PULL BOXES SHALL BE CODE GAUGE GALVANIZED STEEL. ACCEPTED MANUFACTURERSSHALL BE STEEL CITY (THOMAS & BETTS), RACO, CROUSE-HINDS, APPLETON (EMERSON), OR APPROVEDEQUIVALENT.B.ALL EXTERIOR BOXES SHALL BE NEMA 3R OR BETTER.15.CONDUCTORS:A.CONDUCTORS SHALL BE MANUFACTURED BY SOUTHWIRE (SIMPULL), ENCORE (SUPERSLICK), UNITEDCOPPER (SLK), CERRO (SLP), OR APPROVED EQUAL, "PRE-LUBRICATED" BY THE MANUFACTURER.B.ALL DC CONDUCTORS SHALL BE COPPER PV WIRE, RATED 90° C WET/DRY EXCEPT WHERE OTHERWISENOTED OR REQUIRED BY U.L. OR OTHER CODES. ALL DC CONDUCTORS SHALL BE PV WIRE STRANDEDFOR #10 AWG.C.ALL AC COPPER CONDUCTORS SHALL BE SINGLE INSULATED CONDUCTOR, THHN/THWN-2. SIZES #10AWG AND SMALLER SHALL BE SOLID, SIZES #8 AWG AND LARGER SHALL BE STRANDED.D.ALL CONDUCTORS SHALL BE COPPERE.BRANCH CIRCUITS SHALL NOT BE SMALLER THAN #12 AWG. CONTROL WIRING MAY BE #14 AWG.F.AC CONDUCTORS SHALL BE COLOR CODED BLACK/RED/BLUE FOR 120/208 VOLT SYSTEMS ANDBROWN/ORANGE/YELLOW FOR 277/480 VOLT SYSTEMS FOR A, B, AND C PHASES, RESPECTIVELY.NEUTRAL SHALL BE WHITE FOR 120/208 VOLT SYSTEMS AND NATURAL GRAY FOR 277/480 VOLTSYSTEMS. GROUND CONDUCTOR SHALL BE GREEN ON ALL SYSTEMS.G.DC CONDUCTORS SHALL BE COLOR CODED RED/BLACK/GREEN FOR POSITIVE, NEGATIVE, AND GROUND,RESPECTIVELY.H.PV SYSTEM DC CIRCUIT CONDUCTORS SHALL BE IDENTIFIED AT ALL ACCESSIBLE POINTS OFTERMINATION, CONNECTION, AND SPLICES AS REQUIRED PER NEC 690.31(B)(1).I.ALL AC CONDUCTORS SHALL BE IN CONDUIT.J.SPLICES IN #10 AWG AND SMALLER SHALL BE MADE UP WITH CRIMPED CONNECTORS WITH INSULATINGCAPS (NO TAPE) OR WIRENUTS (MAXIMUM OF 3 CONDUCTORS UNDER ANY CONNECTOR OR WIRENUT).LARGER WIRE SHALL USE SPLIT BOLTS OR BOLTED CLAMPS.K.ALL WIRING LUGS THROUGHOUT THE PROJECT, INCLUDING, BUT NOT LIMITED TO, BREAKERS,PANELBOARD/SWITCHBOARD LUGS, SAFETY SWITCH LUGS, MOTOR STARTER LUGS, TRANSFORMERSLUGS, WIRING DEVICE TERMINALS, AND ALL EQUIPMENT LUGS/TERMINALS SHALL BE RATED FOR USEWITH 75 DEGREE INSULATED CONDUCTORS AT THEIR 75 DEGREE AMPACITY AND SHALL BE SIZED ANDSELECTED TO MATCH THE CONDUCTOR SIZE AND MATERIAL.L.CIRCUIT SPLICES SHALL NOT BE MADE ON DEVICE TERMINALS.M.WIRE WITHIN PANELBOARDS SHALL BE NEATLY TRAINED, SQUARED, BUNCHED, AND TAGGED.N.ALL CONDUCTORS INSTALLED IN VERTICAL RACEWAYS SHALL BE SUPPORTED AT INTERVALS ASREQUIRED PER NEC 300-19.O.GROUND ALL EQUIPMENT PER NEC ARTICLE 250. BOND WHERE CONDUITS ENTER ENCLOSURE THROUGHCONCENTRIC KNOCKOUTS. ALL FLEX, INCLUDING FIXTURE TAPS, SHALL INCLUDE GREEN GROUNDINGCONDUCTOR, #12 AWG MINIMUM. PROVIDE GREEN INSULATED EQUIPMENT GROUNDING CONDUCTORIN EACH CONDUIT, SIZED PER NEC 250-122.P.CURRENT LIMITERS SHALL BE PROVIDED WHERE THE PV DISCONNECT AND POINT OF INTERCONNECTIONARE SEPARATED BY A DISTANCE GREATER THAN 10 FEET, IN ACCORDANCE WITH NEC 705.31.Q.ALL AMPACITIES OF CONDUCTORS ENCLOSED IN CONDUIT SHALL BE CALCULATED AT A MAXIMUM OF75°C INSULATION RATING OR THE TEMPERATURE RATING OF THE TERMINATION, WHICHEVER IS LOWERAS PER NEC TABLE 310.15(B)(16).R.WIRENUTS ARE ONLY ALLOWED FOR AUXILIARY CIRCUITS. IF USED, ALL WIRENUTS ARE TO BE SILICONEFILLED, EQUIVALENT TO IDEAL BLUE, AND INSTALLED PER MANUFACTURER'S SPECIFICATIONS BY AQUALIFIED/CERTIFIED PERSON. WIRENUTS SHALL NOT BE INSTALLED ALONG THE PATH OF PV POWERGENERATION, OR FOR ANY EQUIPMENT NECESSARY FOR THE GENERATION OF PV POWER.S.FUSES AND WIRES SUBJECT TO TRANSFORMER INRUSH CURRENT SHALL BE SIZED ACCORDINGLY.T.ALL DC MATERIALS SHALL BE UL LISTED FOR AT LEAST THE MAXIMUM DC SYSTEM VOLTAGE.U.SPLIT BOLTS/SPLICES/CONNECTORS SHALL BE INSULATED WITH APPROVED MEANS. UL LISTEDELECTRICAL TAPE ALONE IS NOT SUITABLE AS THE ONLY INSULATION MEANS. FOLLOWMANUFACTURERS INSTRUCTIONS FOR APPLICATION OF INSULATING PRODUCT. NO SPLICES ALONG THEPATH OF PV POWER GENERATION16.DC ARRAY WIRE MANAGEMENTA.CONTRACTOR SHALL PROVIDE WIRE MANAGEMENT BY MEANS OF WIRE TRAY WITH LID OR CONDUIT ASREQUIRED WHERE DC WIRING IS EXPOSED TO PHYSICAL DAMAGE WHEN RUNNING BETWEEN ARRAYSECTIONS. REFER TO THE STRING PLAN FOR DC HOME RUN AND INTER-ARRAY RACEWAY DETAILS.B. WHERE WIRES ARE EXPOSED BETWEEN ROWS OF MODULES ON A TILT/BALLASTED RACK, THEY SHALLBE PROTECTED FROM PHYSICAL DAMAGE BY MEANS OF WIRE TRAY, CONDUIT OR OTHER APPROVEDMETHOD.C.EXPOSED SINGLE CONDUCTOR PV WIRE WILL BE ALLOWED WITHIN ARRAY BOUNDARY FOR PV SOURCEAND DC-DC CONVERTER CIRCUITS. WIRE MANAGEMENT METHODS SHALL BE PROVIDED SUCH THATWIRES ARE NEATLY TRAINED ALONG MODULE FRAMES OR RACK FRAMING MEMBERS. NO WIRES SHALLBE IN CONTACT WITH ROOF SURFACE.D.WIRES SHALL BE SUPPORTED EVERY 24" AT A MINIMUME.WHERE TRAINING WIRES ALONG MODULE FRAMES, USE STAINLESS STEEL CABLE CLIPS SUCH AS HEYCOSUN RINNER CABLE CLIP OR EQUIVALENTF.WHERE TRAINING WIRES ALONG RACKING SYSTEM, USE MANUFACTURERS WIRE MANAGEMENT SYSTEM.WHERE MANUFACTURER DOES NOT PROVIDE A WIRE MANAGEMENT SYSTEM USE VYNIL COATEDSTAINLESS STEEL CABLE TIES SUCH AS HEYCO SUN BUNDLERS OR EQUIVALENT.G.PLASTIC WIRE TIES RATED TO STANDARD UL 21S SHALL BE PERMITTED TO SUPPLEMENT WIREMANAGEMENT SYSTEM, BUT SHALL NOT BE USED AS THE PRIMARY MEANS OF ACHIEVING WIREMANANGMENT.17.PANELBOARDS:A.PANELBOARDS SHALL BE PROVIDED AS MANUFACTURED BY EATON, SQUARE-D, GENERAL ELECTRIC, ORAPPROVED EQUAL. ALL NEW EQUIPMENT FOR THE PROJECT SHALL BE BY THE SAME MANUFACTURER.LOAD CENTER TYPE PANELBOARDS SHALL BE USED WHERE THE PANELBOARD SERVES A DWELLING UNIT.B.ALL BUSSING, INCLUDING NEUTRAL AND GROUND, SHALL BE COPPER.C.ALL BREAKERS SHALL BE AUTOMATIC THERMAL-MAGNETIC TYPE MOLDED CASE BOLT-ON TYPE,CALIBRATED FOR 40 DEGREE C, OR AMBIENT COMPENSATION, UNLESS OTHERWISE NOTED.D.PANELS SHALL BE FULLY RATED (AIC). NO SERIES AIC RATINGS ARE ALLOWED.E.PANELS SHALL HAVE FULL SIZE EQUIPMENT GROUNDING BARS AND NEUTRAL BARS, EXCEPT WHEREINDICATED TO BE 200%.F.ALL PANELBOARD AND BREAKER LUGS SHALL BE SIZED AND RATED PER THE CONDUCTOR SIZE ANDMATERIAL.G.LIGHTING AND APPLIANCE PANELS (100A-600A) SHALL HAVE FRONT ACCESSIBLE HINGEDDOOR-IN-DOOR COVERS WITH DEAD FRONT, SHALL BE 20" WIDE MINIMUM WITH MINIMUM 4" WIDEWIRING GUTTERS.H.DISTRIBUTION PANELS (600A-1200A) SHALL HAVE FRONT ACCESSIBLE DEAD FRONT COVERS.I.ALL PANELBOARDS SHALL HAVE METAL DIRECTORY FRAME. FOR EACH PANELBOARD, PROVIDE TYPEDCIRCUIT DIRECTORY PER NEC 408.4. SPARE CIRCUIT BREAKERS SHALL BE LABELED SPARE AND IN THE OFFPOSITION.18.MARKING AND LABELINGA.ALL INTERACTIVE SYSTEM POINTS OF INTERCONNECTION WITH OTHER SOUCES SHALL BE MARKED ATAN ACCESSIBLE LOCATION AT THE DISCONNECTION MEANS.B.A PERMANENT PLAQUE OR DIRECTLY SHALL BE PROVIDED IDENTIFYING THE LOCATION OF THE SERVICEDISCONNECTION MEANS AND THE PHOTOVOLTAIC SYSTEM DISCONNECTION MEANS, IF NOT LOCATEDAT THE SAME LOCATION.C.PHOTOVOLTAIC MODULES SHALL BE MARKED TO IDENTIFY LEAD POLARITY, DEVICE RATINGS, ANDSPECIFICATIONS FOR VOLTAGES, CURRENTS, AND POWER.D.REQUIRED SAFETY SIGNS AND LABELS SHALL BE PERMANENTLY ATTACHED BY ADHESIVE, OR OTHERMECHANICAL MEANS. LABELS SHALL COMPLY WITH ARTICLE 690 OF THE NEC OR OTHER APPLICABLESTATE, AND UTILITY CODES.L.ALL ELECTRICAL JUNCTION BOXES, SWITCHGEAR, CABLING, VOICE/DATA OUTLETS, LOW VOLTAGECABINETS, ETC. SHALL BE LABELED ACCORDING TO PANEL/RACK AND CIRCUIT NUMBER.19.LIGHTNING PROTECTION SYSTEMA.ALL SOLAR COMPONENTS ON THE ROOF SHALL COMPLY WITH NFPA 780 AND UL 96A.B.MODIFICATIONS OF THE LPS SYSTEM SHALL BE BY A UL LISTED INSTALLER. THEINSTALLER SHALLPROVIDE A UL MATER LABEL FOR THE SYSTEM.C.CONFIRM TO THE METHODS AND MATERIALS REQUIRED AT ROOFINGPENETRATIONS OF THE LIGHTNING PROTECTION COMPONENTS TO ENSURE COMPATIBILITY WITH THEROOFING SPECIFICATIONS AND WARRANTY.20.PROJECT CLOSEOUTA.PREPARE THREE (3) COPIES OF OPERATING AND MAINTENANCE MANUALS IN HARD COVER BINDERSAND DELIVER TO THE OWNER. ALSO PROVIDE DIGTAL COPY OF THE BINDER MATERIALS. AT A MINIMUMTHE BINDERS SHALL INCLUDE:1. COMPLETE SET OF ALL APPROVED SUBMITTALS INCLUDING SHOP DRAWINGS AND PRODUCTLITERATURE.2.AS BUILT DRAWINGS SHOWING THE FINAL PLACEMENT OF ALL PANELS, COMBINER BOXES,CONNECTIONS, AND CONDUIT PLACEMENT.3.AS BUILT ELECTRICAL PLANS, INCLUDING THREE LINE DIAGRAM, AND ELEVATION DRAWINGS SHOWINGTHE FINAL PLACEMENT OF THE ELECTRICAL EQUIPMENT.4.CLEANING INSTRUCTIONS FOR THE PV PANELS.5.COPIES OF ALL START-UP PROCEDURES MEASUREMENTS.6.COPIES OF ALL TESTING DATA AND REPORTS.21.COMMISSIONINGA.PRIOR TO COMMISSIONING THE SYSTEM, ALL WIRING SHALL BE TESTED FOR RESISTANCE, CONTINUITY,AND GROUNDS BEFORE BEING ENERGIZED. DC-DC CONVERTER OUTPUT CIRCUITS SHALL BE TESTED FORSAFETY VOLTAGE AT THE INVERTER AFTER INSTALLATION IS COMPLETED. FAULTY WIRING SHALL BEREPLACED AT NO ADDITIONAL EXPENSE TO THE OWNER. PROVIDING SUBCONTRACTOR SHALL ENSUREA TESTING RESULTS REPORT IS INCLUDED AS A PART OF CLOSE OUT DOCUMENTS.B.THE SOLAR PHOTOVOLTAIC SYSTEM SHALL BE COMMISSIONED UPON COMPLETION OF THEINSTALLATION. ALL A/E PUNCH LIST ITEMS FOR THE SYSTEM SHALL BE CORRECTED.1.A CONSTRUCTION CHECKLIST FOR EACH ARRAY SHALL BE COMPLETE PRIOR TO FUNCTIONAL TESTING.2.ALL CONTROL AND MONITORING SYSTEM FUNCTIONS FOR THIS AND ALL INTERLOCKING SYSTEMSSHALL HAVE BEEN PROGRAMMED AND OPERABLE, INCLUDING ALL MONITOR POINTS.3.EACH STRING SHALL BE TESTED FOR SAFETY VOLTAGE AND A REPORT WILL BE PROVIDED TO THEENGINEER.4.PROVIDE INSULATION RESISTANCE TESTING ON HOME RUN CABLES.C.PROVIDE WEB BASED MONITORING ACCESS TO ONWER AND ONWNERS AGENT WITH FULLADMINISTRATIVE ACCESS.WILDE #: 25-247THIS DRAWING IS AN INSTRUMENT OF SERVICE. THE DRAWING AND THE INFORMATION THEREON IS THE PROPERTY OF WILDE ENGINEERING, PLLC ANY REPRODUCTION, ALTERATION, OR USE FOR OTHER THAN THE INTENDED PROJECT, WITHOUT THE WRITTEN CONSENT OF WILDE ENGINEERING, PLLC IS EXPRESSLY FORBIDDEN. COPYRIGHT © WILDE ENGINEERING PLLC 2026, ALL RIGHTS RESERVED.02/16/2026REVISIONSNo.DescriptionDateSEALBID DOCUMENTSWilde EngineeringCopyright 2026-BID DOCUMENTS02/16/2026SOUTHERN HUMAN SERVICES CENTER
<br />SOLAR PV PROJECT
<br />2501 HOMESTEAD ROAD
<br />CHAPEL HILL, NC 27516 BID DOCUMENTS ONLYNOT FOR CONSTRUCTIONSYSTEM OWNER: ORANGE COUNTY NORTH CAROLINASPECIFICATIONSE-002Docusign Envelope ID: 44C13555-A1DE-83DE-8008-D9A38861DC35
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