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CONDUITS FITTINGS & SUPPORTS Section 16021 15-1207 4. UL - Underwriter's Laboratories, Inc. 6 Rigid Metal Electrical Conduit. 360 Liquid -Tight Flexible Steel Conduit. 514 Metallic Outlet Boxes, Electrical. 651 Schedule 40 and 80 PVC Conduit. 797 Electrical Metallic Tubing. 1242 Intermediate Metal Conduit. PART 2 - PRODUCTS 2.1 MATERIALS: Use only self -extinguishing, non -hygroscopic corrosion- resistant material and equipment. A. Conduit, Fittings and Supports: 1. Rigid Steel Conduits (RSC), Condulets, and Fittings: Hot -dipped galvanized; ANSI C80.1, UL6, and FS WW -C-581 E. 2. Intermediate Metallic Conduit (IMC): Hot -dipped galvanized; UL 1242 and FS WW -C-581 E. 3. Electrical Metallic Tubing (EMT): Electro -galvanized; ANSI C80.3, UL 797, and FS WW -C- 563. EMT only on interior of buildings. 4. Coated Rigid Steel Conduit: Polyvinyl -chloride (PVC) coating factory bonded to outer surface of RSC conduit. Bond between PVC coating and conduit surface shall be greater than the tensile strength of PVC. Thickness of Coating: Forty (40) mil. minimum. Tensile Strength: 3500 psi. All fittings with same coating as conduit, PVC sleeve over fittings shall extend beyond the hub or coupling approximately one (1) diameter or one and one-half inches (1 1/2"), whichever is smaller. Coated Conduit: NEMA Standard RNI (Type A). Occidental Coating Company "OCCAL-40", Plastic Applicators "KorKap", RobRoy Industries "Plasti-Bond" or equal. 5. PVC Conduit: Type 40 and Type 80, ninety degrees (900) C., composed of polyvinyl- chloride, NEMA TC -2, TC -3 (fittings UL 514), FS W -C -1094A, UL 651 and ANSI C33.91. Tensile Strength: 7,000 psi at seventy-three point four degrees (73.40) F. Flexural Strength: 11,000 psi. Compressive Strength: 8,600 psi. Fittings shall be by same manufacturer. Joints: Solvent welded. 6. Flexible Conduit: FS WW -C-566. Flexible steel, zinc coated on both inside and outside by hot -dipping process, interlocked spirally wound steel strip. Liquid tight flexible conduit shall be with extruded polyvinyl covering and with continuous copper bonding conductor wound spirally between convolutions or installed with ground type end fittings at each end to accommodate grounding jumper to provide continuous ground bond. Minimum size: One- half inch (1/2") except where supplied as part of an approved manufactured assembly integrally wired into recessed light fixtures. 7. Fittings: UL Standard No. UL 514 and listed in UL Electrical Construction Materials List. 8. Fittings types: a. Condulets: Crouse -Hinds "Form 8" or equal. b. Flexible Conduit Fittings: Squeeze type, clamp type or water -tight type with gland nut where required with insulated throats. Set screw type, not acceptable. 2