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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 <br />DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 <br />SANTA ANA, CA BID & PERMIT SET <br /> <br />CONDUIT 260111 - 5 <br />conduit unions shall be used. Do not embed aluminum conduit in concrete or masonry <br />construction, nor electrical metallic tubing in slabs on grade. Do not install any conduit in any <br />concrete slab. <br />B. Arrange conduit to maintain headroom and present a neat appearance. <br />C. Route exposed conduit and conduit above accessible ceilings parallel and perpendicular to <br />walls and adjacent piping. <br />D. Maintain minimum 6-inch clearance between conduit and piping. Maintain 12-inch clearance <br />between conduit and heat sources such as flues, steam pipes, and heating appliances. <br />E. Arrange conduit supports to prevent distortion of alignment by wire pulling operations. Fasten <br />conduit using galvanized straps, lay-in adjustable hangers, clevis hangers, or bolted split <br />stamped galvanized hangers. Maintain 12" distance minimum between main conduit runners <br />and ceiling system grid. <br />F. Group conduit in parallel runs where practical and use conduit rack constructed of steel channel <br />with conduit straps or clamps. Provide space for 25 percent additional conduit. <br />G. Do not fasten conduit with wire or perforated pipe straps. Remove all wire used for temporary <br />conduit support during construction, before conductors are pulled. <br />H. Support conduits 1 inch and larger with pipe clamps either suspended from structural slabs with <br />a rod with adjustable pipe ring, or mounted on wall from channel supports. Attach to concrete <br />by expansion anchors. Powder actuated fastening devices are not permitted. Where two or <br />more conduits 1-1/2 inch and larger or where 3 or more 3/4 inch conduits are suspended from <br />ceiling, use trapeze type hanger from rods. <br />I. Firmly support and fasten conduit in place. Support rigid metal conduit and electrical cabinet <br />and fitting. Support flexible metal conduit at maximum intervals of 4 feet and within 12 inch <br />of every outlet box and fitting except for lengths of not over 2 feet at connections where <br />flexibility is required. <br />J. Secure exposed conduit runs of concrete, plaster or other construction in place with cast conduit <br />clamps affixed with expansion anchors or galvanized machine or lag screws. <br />K. Do not strap or fasten rigid or electrical metallic tubing to mechanical equipment or to <br />equipment subject to vibration or mounted on shock absorbing bases, including sprinkler or <br />pneumatic pipe or tubing. <br />L. Provide independent support for conduit rising from floor for motor connection if over 18 <br />inches above floor. Do not attach to motors, ductwork or mechanical equipment. <br />M. Conduits 1 inch and smaller which are installed above suspended ceilings shall not be secured <br />to ceiling support wires. Support electrical, communication conduits and fixtures independent <br />of ceiling suspension systems. <br />N. Exposed conduits to view shall be installed parallel to and perpendicular to the building <br />structure.