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ORANGE COUNTY 260534-5 <br /> <br />Emergency Management Warehouse Building Dehumidification Raceways <br /> <br /> <br />Where concentric, eccentric or over-sized knockouts are encountered, a grounding-type insulated bushing 1 <br />shall be provided. Bushing shall be connected to the equipment grounding conductor. 2 <br /> 3 <br />Miscellaneous fittings such as reducers, chase nipples, 3-piece unions, and plugs are to be constructed from 4 <br />steel and specifically designed and Listed for their particular application. 5 <br /> 6 <br />Coordinate with other work including wires/cables, boxes, and panel work, as necessary to interface installation of 7 <br />electrical raceways and components with other work. 8 <br /> 9 <br />Mechanically fasten together metal conduits, enclosures, and other components comprising raceway system to form 10 <br />a continuous electrical conductor. Connect to electrical boxes, fittings and cabinets to provide electrical continuity 11 <br />and firm mechanical assembly. 12 <br /> 13 <br />Raceway must be installed as a complete system prior to the installation of cables, conductors, or pull wires 14 <br />into any part of the systems. 15 <br /> 16 <br />Install miscellaneous fittings such as reducers, chase nipples, 3-piece unions, and plugs that have been specifically 17 <br />designed and manufactured for their particular application. Install expansion fittings in raceways every 200' linear run 18 <br />maximum and wherever structural expansion joints are crossed. 19 <br /> 20 <br />Use roughing-in dimensions of electrically supplied utilization equipment furnished by supplier or by other divisions as 21 <br />appropriate. Set conduit and boxes for connection to units only after receiving review of dimensions and after 22 <br />verification of location with other trades. 23 <br /> 24 <br />Do not set final connections for fixtures and/or utilization equipment until connection points and requirements 25 <br />are accurately known. The Contractor is responsible for the relocation of mis-located connection points as 26 <br />required to match equipment at no additional cost. 27 <br /> 28 <br />Cut conduits straight, properly ream. Threads shall be cut into heavy wall conduit using equipment designed for the 29 <br />purpose. 30 <br /> 31 <br />Make changes in direction of raceway run by means of proper field bends or with proper fittings, supplied by raceway 32 <br />manufacturer. 33 <br /> 34 <br />Field-bend conduit with benders designed for purpose so as not to distort nor vary internal diameter. 35 <br /> 36 <br />Properly support and anchor raceways for their entire length by structural materials. Raceways are not to span any 37 <br />space unsupported for lengths in excess of the maximum support distance as previously specified. Raceways may 38 <br />not be used to support other raceways or other items of equipment. 39 <br /> 40 <br />Arrange conduit to maintain headroom and present a neat appearance. 41 <br /> 42 <br />Route exposed conduit and conduit above accessible ceilings parallel and perpendicular to walls and adjacent piping. 43 <br /> 44 <br />Group raceway in parallel runs where three (3) or more raceway are routed together. Use conduit rack constructed of 45 <br />steel channel with conduit straps or clamps. Provide space for 25% additional conduit. 46 <br /> 47 <br />Do not fasten and/or hang conduit with wire or perforated pipe straps. Before conductors are pulled, remove all wire 48 <br />used during construction for temporary conduit support. 49 <br /> 50 <br />Bring conduit to the shoulder of fittings and couplings and fasten securely. All raceway shall be cut to proper length 51 <br />so ends fit accurately in connectors or couplers. 52 <br /> 53 <br />Use conduit hubs for fastening conduit to cast boxes and for fastening conduit to sheet metal boxes in damp or wet 54 <br />locations. 55 <br /> 56 <br />Use conduit bodies to make sharp changes in direction, as around beams. 57 <br /> 58 <br /> 59 <br /> 60 <br />DocuSign Envelope ID: 7668B866-6C26-485C-9A45-DAAB5D4BD951