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Orange County Emergency Services -Generator <br />PDC Project 24030 Conduit for Electrical Systems 26 05 33.13 - 6 <br />1.Provide all required hangers,supports,anchors,fasteners,fittings,accessories,and <br />hardware as necessary for the complete installation of electrical work. <br />2.Secure and support conduits in accordance with NFPA 70 and Section 26 05 29 using <br />suitable supports and methods approved by the authority having jurisdiction. <br />3.Provide independent support from building structure.Do not provide support from piping, <br />ductwork,or other systems. <br />4.Installation Above Suspended Ceilings: Do not provide support from ceiling support system. <br />Do not provide support from ceiling grid or allow conduits to lay on ceiling tiles. <br />5.Use conduit strap to support single surface-mounted conduit. <br />a.Use clamp back spacer with conduit strap for damp and wet locations to provide space <br />between conduit and mounting surface. <br />6.Use metal channel (strut)with accessory conduit clamps to support multiple parallel surface- <br />mounted conduits. <br />7.Use conduit clamp to support single conduit from beam clamp or threaded rod. <br />8.Use trapeze hangers assembled from threaded rods and metal channel (strut)with accessory <br />conduit clamps to support multiple parallel suspended conduits. <br />9.Steel Components: Use corrosion resistant materials suitable for the environment where <br />installed. <br />a.Indoor Dry Locations: Use zinc-plated steel or approved equivalent unless otherwise <br />indicated. <br />b.Outdoor and Damp or Wet Indoor Locations: Use galvanized steel,stainless steel,or <br />approved equivalent unless otherwise indicated. <br />c.Zinc-Plated Steel: Electroplated in accordance with ASTM B633. <br />d.Galvanized Steel: Hot-dip galvanized after fabrication in accordance with ASTM <br />A123/A123M or ASTM A153/A153M. <br />10.Metal Channel (Strut)Framing Systems: Factory-fabricated continuous-slot metal channel <br />(strut)and associated fittings,accessories,and hardware required for field-assembly of <br />supports. <br />a.Minimum Channel Thickness: Steel sheet,12 gage,0.1046 inch. <br />b.Minimum Channel Dimensions: 1-5/8 inch width by 13/16 inch height. <br />I.Connections and Terminations: <br />1.Use approved zinc-rich paint or conduit joint compound on field-cut threads of galvanized <br />steel conduits prior to making connections. <br />2.Where two threaded conduits must be joined and neither can be rotated,use three-piece <br />couplings or split couplings.Do not use running threads. <br />3.Use suitable adapters where required to transition from one type of conduit to another. <br />4.Terminate threaded conduits in boxes and enclosures using threaded hubs or double lock <br />nuts for dry locations and raintight hubs for wet locations. <br />5.Provide insulating bushings or insulated throats at all conduit terminations to protect <br />conductors. <br />6.Secure joints and connections to provide maximum mechanical strength and electrical <br />continuity. <br />7.Condulet fittings shall not be used in lieu of pull boxes. <br />J.Penetrations: <br />1.Do not penetrate or otherwise notch or cut structural members,including footings and grade <br />beams. <br />2.Make penetrations perpendicular to surfaces unless otherwise indicated. <br />3.Where conduits penetrate waterproof membrane,seal as required to maintain integrity of <br />membrane. <br />a.All raceway penetrating exterior walls or other water proof membranes shall slope away <br />from the building with a minimum slope of 4"over 100 feet. <br />4.Make penetrations for roof-mounted equipment within associated equipment openings and <br />curbs where possible to minimize roofing system penetrations.Where penetrations are <br />Docusign Envelope ID: DEDB83DA-7916-8AE5-81B0-AA1EA4D56AE9