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HomeMy WebLinkAboutElectrical Engineering1.GENERAL1.1.ALL ELECTRICAL WORK SHALL BE IN ACCORDANCE WITH LOCAL AND STATE BUILDING CODES AS ADOPTED BY THE AUTHORITY HAVING JURISDICTION ANDCONFORM TO NFPA NO. 70, NATIONAL ELECTRICAL CODE, 2017 EDITION.1.2.CONTRACTOR SHALL OBTAIN AND PAY FOR APPLICABLE PERMITS.1.3.INSTALL EQUIPMENT IN ACCORDANCE WITH MANUFACTURERS INSTRUCTIONS AND RECOMMENDATIONS. NOTIFY ENGINEER IMMEDIATELY WHERE THEREARE CONFLICTS WITH THE DRAWINGS.1.4.THESE DRAWINGS ARE DIAGRAMMATIC IN NATURE AND FEATURE SALIENT POINTS FOR PROJECT CONSTRUCTION. NOT ALL CONNECTIONS ARE SHOWN.1.5.EQUIPMENT LOCATIONS SHOWN ARE GENERAL IN NATURE UNLESS SPECIFICALLY DIMENSIONED. WHERE POSSIBLE, SCALE THE PLACEMENT OF EQUIPMENTFROM THE DRAWINGS. MAKE MINOR RELOCATIONS AS NECESSARY FOR FITTING WITH BUILDING LINES AND COORDINATION WITH OTHER TRADES. DEVICES,RACEWAYS AND OTHER COMPONENTS SHALL BE MOUNTED PLUMB AND SQUARE, EXHIBITING GOOD WORKMANSHIP.1.6.THE CONTRACTOR SHALL BE RESPONSIBLE FOR CHECKING AND VERIFYING DIMENSIONS AND EXISTING CONDITIONS. REPORT DISCREPANCIES TO THEOWNER BEFORE PROCEEDING WITH WORK. WORK AT AN AREA OF DISCREPANCY MADE BEFORE APPROVAL BY THE OWNER SHALL BE THE SOLERESPONSIBILITY OF THE CONTRACTOR AND SHALL BE SUBJECT TO CORRECTIONS BY THE CONTRACTOR WITHOUT ADDITIONAL COMPENSATION.2. CONDUCTORS AND CABLES2.1.CONDUCTORS SHALL BE STRANDED COPPER ONLY.2.1.1.MINIMUM SIZE, POWER CIRCUITS: NO. 12 AWG.2.1.2.MINIMUM SIZE, CONTROL CIRCUITS: NO. 16 AWG.2.1.3.MINIMUM SIZE, COMMUNICATION AND SIGNALLING CIRCUITS: NO. 24 AWG.2.2.INSULATION, BRANCH CIRCUITS:2.2.1. INDIVIDUAL CONDUCTORS, TYPE XHHW-2.2.3.INSULATION, FEEDERS:2.3.1.INDIVIDUAL CONDUCTORS, TYPE XHHW-2.3.CONDUIT3.1.SIZE AS REQUIRED TO MEET NEC CONDUCTOR FILL, 1/2-INCH DIAMETER MINIMUM SIZE.3.2.ABOVE GRADE:3.2.1. BRANCH CIRCUIT: EMT.3.2.2. SERVICE ENTRANCE: RMC3.3. BELOW GRADE:3.3.1.UNDERGROUND CONDUIT: HDPE3.3.1. SWEEPS AND RISERS TO ABOVE GRADE: IMT OR RMC.3.4.USE DUCT SEAL AROUND CONDUCTORS WHERE CONDUITS ENTER AND LEAVE THE BUILDING.3.5.PENETRATIONS OF CONDUITS THROUGH FIRE-RATED WALLS OR CEILINGS MUST BE SEALED AROUND CONDUIT SO AS TO RESTORE ORIGINAL FIRE-RATINGOF WALLS OR CEILINGS. APPROVED FIRE-RATED FITTINGS SHALL BE USED. SEE ARCH DWG FOR EXACT LOCATIONS AND RATINGS OF FIRE-RATED WALLS ANDCEILINGS.3.6.TO MAINTAIN ENVIRONMENTAL RATING OF EQUIPMENT, USE HUBS OR FITTINGS WITH THE SAME ENVIRONMENTAL RATING AS THE ENCLOSURE.4.BOXES4.1.BOXES SHALL BE PROVIDED IN THE WIRING OR RACEWAYS SYSTEMS WHEREVER REQUIRED FOR PULLING OF WIRES, MAKING CONNECTIONS, ANDMOUNTING OF DEVICES OR FIXTURES.4.2.BOXES FOR METALLIC RACEWAYS SHALL BE 4-INCH SQUARE NOMINAL SIZE U.O.N., 2-1/8 INCHES DEEP.4.3.BOXES FOR FIXTURE SUPPORT SHALL BE AS RECOMMENDED BY THE FIXTURE MANUFACTURER.5.GROUNDING5.1.GROUND RODS SHALL BE COPPER OR COPPER-CLAD STEEL, 10 FEET LONG, 3/4” DIAMETER MINIMUM, WITH 10 FOOT SPACING MINIMUM.5.2.BURIED CONNECTIONS SHALL BE EXOTHERMICALLY WELDED OR IRREVERSIBLY CRIMPED.5.3.PROVIDE A GREEN INSULATED GROUNDING CONDUCTOR IN EACH ELECTRICAL CABLE AND CONDUIT, SIZE AS NOTED.5.4.BOND ELECTRICAL EQUIPMENT PER NEC.6.PANELS6.1.PANELS SHALL BE FLUSH OR SURFACE MOUNTED, SINGLE PHASE, AS INDICATED IN THE SCHEDULES.6.2.PANELS SHALL HAVE MAIN TYPE (MAIN BREAKER OR MAIN LUGS), BUS SIZE, VOLTAGE, A.I.C. RATING, CIRCUIT CAPACITY INCLUDING NUMBER OF BREAKERSAND SPACES, AS SCHEDULED.6.3.PANEL ENCLOSURES SHALL BE NEMA 3R UNLESS INDICATED OTHERWISE.7.IDENTIFICATION7.1.LABELS SHALL BE BLACK PHENOLIC PLASTIC WITH WHITE ENGRAVED LETTERING, MINIMUM LETTER HEIGHT 3/16" HIGH.7.1.1.LABEL PANELBOARDS.7.1.2.LABEL THE FUNCTION OF MOTOR CONTROLLER AND OUTDOOR LIGHTING SWITCHES.7.2.PROVIDE CLEAR PRINTED PLASTIC ADHESIVE TAPE WITH 1/8" HIGH BLACK LETTERS AT THE BASE OF OUTLET FACEPLATES TO IDENTIFY THE SERVING BRANCHCIRCUIT.7.3.LABEL WITH PRINTED PLASTIC ADHESIVE TAPE THE PANEL AND CIRCUIT NUMBERS OF CONDUCTORS INSIDE JUNCTION BOXES.8.PROJECT CLOSEOUT8.1.DEMONSTRATE OPERATION OF ELECTRICAL SYSTEMS TO THE SATISFACTION OF THE OWNER AND ENGINEER.NENANA BIOMASS ANDWASHETERIAREV ASPECIFICATIONS ANDABBREVIATIONSJDGJDGJDG5/22/2021E1.0GENERAL SPECIFICATIONS NENANA BIOMASS AND WASHETERIA REV A SITE PLAN JDG JDG JDG 5/22/2021 E1.1SITE PLAN - NENANA BIOMASS FACILITY WDWDUPNENANA BIOMASS ANDWASHETERIAREV BPOWER PLANJDGJDGJDG7/28/2021E1.2POWER PLAN - MAIN FLOOR OVERVIEW NENANA BIOMASS ANDWASHETERIAREV BPOWER PLANJDGJDGJDG7/28/2021E1.3POWER PLAN DETAIL NENANA BIOMASS AND WASHETERIA REV B POWER PLAN JDG JDG JDG 7/28/2021 E1.4 FLOOR PLAN - MEZZANINE FAULT CURRENT: XX,XXX A UNDERGROUND CONDUIT FAULT CURRENT:: XX,XXX A CT ENCLOSURE SIZE: 36"x36"x11" TYPE: NEMA 3R CTs METER BASE PROVISIONS FOR TEST SWITCH. MIN. DIMENSIONS: 9.5"H X 11"W PANEL BP1 225A BUS 42 CKT SERVICE DISCONNECT 200A 3P 120/208 VAC MTS 200A, 3PDT 250VAC GENERATOR XXX KVA FAULT CURRENT: XX,XXX A UNDERGROUND CONDUIT FAULT CURRENT:: XX,XXX A METER BASE PANEL W1 225A BUS 40 CKT SERVICE DISCONNECT 400A 1P 120/240 VAC PANEL W2 225A BUS 40 CKT NENANA BIOMASS AND WASHETERIA REV B ONE-LINES JDG JDG JDG 7/28/2021 E1.5 POWER ONE-LINE NENANA BIOMASS AND WASHETERIA REV B PANEL SCHEDULES JDG JDG JDG 7/28/2021 E1.6