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Section 26 05 33 RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS <br /> I. Coat field-cut threads on PVC-coated raceway with a corrosion-preventing <br /> conductive compound prior to assembly. <br /> J. Raceway Terminations at Locations Subject to Moisture or Vibration: Use <br /> insulating bushings to protect conductors including conductors smaller than No. 4 <br /> ' AWG. <br /> K. Terminate threaded conduits into threaded hubs or with locknuts on inside and <br /> outside of boxes or cabinets. Install bushings on conduits up to 1-1/4-inch <br /> (35mm) trade size and insulated throat metal bushings on 1-1/2-inch (41-mm) <br /> trade size and larger conduits terminated with locknuts. Install insulated throat <br /> metal grounding bushings on service conduits. <br /> L. Install raceways square to the enclosure and terminate at enclosures with <br /> locknuts. Install locknuts hand tight plus 1/4 turn more. <br /> M. Do not rely on locknuts to penetrate nonconductive coatings on enclosures. <br /> Remove coatings in the locknut area prior to assembling conduit to enclosure to <br /> ' assure a continuous ground path. <br /> N. Cut conduit perpendicular to the length. For conduits 2-inch (53-mm)trade size <br /> and larger, use roll cutter or a guide to make cut straight and perpendicular to the <br /> ' length. <br /> O. Install pull wires in empty raceways. Use polypropylene or monofilament plastic <br /> line with not less than 200-lb (90-kg)tensile strength. Leave at least 12 inches <br /> (300 mm) of slack at each end of pull wire. Cap underground raceways <br /> designated as spare above grade alongside raceways in use. <br /> P. Flexible Conduit Connections: Comply with NEMA RV 3. Use a maximum of 72 <br /> inches (1830 mm)of flexible conduit for equipment subject to vibration, noise <br /> transmission, or movement; and for transformers and motors. <br /> 1. Use LFMC in damp or wet locations subject to severe physical damage. <br /> ' Q. Recessed Boxes in Masonry Walls: Saw-cut opening for box in center of cell of <br /> masonry block, and install box flush with surface of wall. Prepare block surfaces <br /> to provide a flat surface for a raintight connection between box and cover plate or <br /> ' supported equipment and box. <br /> R. Horizontally separate boxes mounted on opposite sides of walls so they are not <br /> in the same vertical channel. <br /> S. Locate boxes so that cover or plate will not span different building finishes. <br /> T. Support boxes of three gangs or more from more than one side by spanning two <br /> framing members or mounting on brackets specifically designed for the purpose. <br /> U. Fasten junction and pull boxes to or support from building structure. Do not <br /> support boxes by conduits. <br /> I <br /> City of Everett 26 05 33-5 January 2022 <br /> Evergreen Pump Station Modifications <br /> UP3747-3 <br />