Specifications - City of Montpelier, Vermont

Title:16110 – RacewaysMontpelier District HeatingCity of Montpelier, VTIssue Date:September 28, 2012Page #:4 of 10H. Liquidtight Flexible Metal Conduit: UL 360.2.3 NONMETALLIC CONDUIT AND DUCTSA. General: Minimum conduit size shall be 1/2" for interior installations and 3/4" forexterior underground installations.B. Electrical Nonmetallic Tubing: NEMA TC 13.C. Rigid Nonmetallic Conduit: NEMA TC 2 and UL 651, Schedule 40 or 80 PVC.D. Rigid Nonmetallic Utilities Duct: NEMA TC 6. PVC or ABS plastic utilitiesduct.1. Type I or EB: Designed for encased burial in concrete.2. Type II or DB: Designed for direct burial without encasement in concrete.E. Liquidtight Flexible Nonmetallic Conduit: UL 1660.2.4 CONDUIT BODIESA. General: Types, shapes, and sizes as required to suit individual applications, NECrequirements and NEC bending radius. Provide matching gasketed coverssecured with corrosionresistant screws.B. Metallic Conduit and Tubing: Use metallic conduit bodies. Use bodies withthreaded hubs for threaded raceways. Conduit bodies used with rigid metalconduit shall have malleable iron bodies and stamped steel covers. Use gaskets inall damp and wet locations. Conduit bodies shall have threaded hubs. Conduitbodies shall be standard type for 2 inch size and under, long body type for sizesover 2 inches.C. Nonmetallic Conduit and Tubing: Use nonmetallic conduit bodies conforming toUL 514 B.2.5 CONNECTORS AND FITTINGSA. Of indicated types, sizes, and NEMA classes. Where not indicated, provide unitsof types, sizes, and classes appropriate for the use and location. Provide all itemscomplete with accessories required for the intended use. Provide gaskets for unitsin damp or wet locations. All connectors and fittings shall comply withapplicable provisions of NEC Article 314 and be listed for their intended use.RACEWAYS161104