2024-575-E-AMS-Hamlett Associates-RFP5417 -Motor Pool, Maintenance Shop, OPT ATS & Generator Work

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OC Motor Pool and Maintenance Shop PDC Project 23017 Conduit for Electrical Systems 26 05 33.13 - 6 4.Arrange conduit to maintain maximum headroom,clearances,and access. 5.Arrange conduit to provide no more than the equivalent of four 90 degree bends between pull points. 6.Arrange conduit to provide no more than 100 feet between pull points. 7.In every instance,conduit shall be installed in such a manner that the conductors may readily and easily be drawn or pulled in without strain or damage to the insulation;and,also,so that defective conductors may be readily and easily withdrawn and replaced by new conductors. Long radius bends and a sufficient number of approved pull and junction boxes shall be approved for this purpose,and as may be directed by the Engineer. All conduit shall be securely supported and grounded. 8.Arrange conduit to prevent moisture traps.Provide drain fittings at low points and at sealing fittings where moisture may collect. 9.Where conduits join any couplings or threaded fittings,the ends shall be made watertight. 10.Maintain minimum clearance of 12 inches between conduits and hot surfaces.This includes, but is not limited to: I.Conduit Support: 1.Provide all required hangers,supports,anchors,fasteners,fittings,accessories,and hardware as necessary for the complete installation of electrical work. 2.Secure and support conduits in accordance with NFPA 70 and Section 26 05 29 using suitable supports and methods approved by the authority having jurisdiction. 3.Provide independent support from building structure.Do not provide support from piping, ductwork,or other systems. 4.Installation Above Suspended Ceilings: Do not provide support from ceiling support system. Do not provide support from ceiling grid or allow conduits to lay on ceiling tiles. 5.Use conduit strap to support single surface-mounted conduit. a.Use clamp back spacer with conduit strap for damp and wet locations to provide space between conduit and mounting surface. 6.Use metal channel (strut)with accessory conduit clamps to support multiple parallel surface- mounted conduits. 7.Use conduit clamp to support single conduit from beam clamp or threaded rod. 8.Use trapeze hangers assembled from threaded rods and metal channel (strut)with accessory conduit clamps to support multiple parallel suspended conduits. 9.Steel Components: Use corrosion resistant materials suitable for the environment where installed. a.Indoor Dry Locations: Use zinc-plated steel or approved equivalent unless otherwise indicated. b.Outdoor and Damp or Wet Indoor Locations: Use galvanized steel,stainless steel,or approved equivalent unless otherwise indicated. c.Zinc-Plated Steel: Electroplated in accordance with ASTM B633. d.Galvanized Steel: Hot-dip galvanized after fabrication in accordance with ASTM A123/A123M or ASTM A153/A153M. 10.Metal Channel (Strut)Framing Systems: Factory-fabricated continuous-slot metal channel (strut)and associated fittings,accessories,and hardware required for field-assembly of supports. a.Minimum Channel Thickness: Steel sheet,12 gage,0.1046 inch. b.Minimum Channel Dimensions: 1-5/8 inch width by 13/16 inch height. J.Connections and Terminations: 1.Use approved zinc-rich paint or conduit joint compound on field-cut threads of galvanized steel conduits prior to making connections. 2.Where two threaded conduits must be joined and neither can be rotated,use three-piece couplings or split couplings.Do not use running threads. 3.Use suitable adapters where required to transition from one type of conduit to another. 4.Terminate threaded conduits in boxes and enclosures using threaded hubs or double lock nuts for dry locations and raintight hubs for wet locations. Docusign Envelope ID: EF9C08D2-5B75-438B-8D6D-8473F81BD7C4