NEMA TC 14

Abstract

This Standard specifies the requirements for halogen-free reinforced thermosetting resin conduit (RTRC), and associated fittings for installation and use in accordance with the Rules of the Canadian Electrical Code, (CEC) Part I, and the National Electrical Code (NEC) for nonhazardous locations.<br>The products specified in this Standard are intended for use at, but not limited to, &#8722;40&#176;C (&#8722;40&#176;F) to 110&#176;C (230&#176;F) continuous operating temperature.<br>This Standard covers conduit Type AG for use above ground and/or below ground, and Type BG for use below ground only.<br>This Standard covers conduit Type ID (dimensions based on inside diameters) and Type IPS (dimensions based on outside diameters of iron pipe sizes). Trade sizes (metric designators) are 1/2 (16), 3/4 (21), 1 (27), 1-1/4 (35), 1-1/2 (41), 2 (53), 2-1/2 (63), 3 (78), 3-1/2 (91), 4 (103), 4 HW (103), 4-1/2 (116), 5 (129), and 6 (155).<br>Note: The values in parenthesis are metric size designations of conduits and fittings and do not necessarily reflect metric trade sizes.<br>Fittings specified in this Standard include, but are not limited to, straight couplings, 5&#176; angle couplings, adapters, elbows with plain ends or integral belled ends at one or both ends, expansion joints and conduit bodies.<br>Note: A product that contains features, characteristics, components, materials, or systems new or different from those in use when the Standard was developed, and that involves a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to maintain the level of safety for the user of the product as originally anticipated by the intent of this Standard.