Standard Insights: NECA 101, Standard for Installing Steel Conduits (RMC, IMC, EMT)

摘要

NECA 101-2020 describes installation procedures for steel rigid metal conduits (RMC), steel intermediate metal conduits (IMC), and steel electrical metallic tubing (EMT), including steel conduits with a supplementary PVC coating, used as raceway systems for electrical wiring in residential, commercial and industrial occupancies. This standard also includes information on fittings and other applicable accessories necessary for a quality installation of these raceways. The wall thickness and strength of steel make RMC, IMC and EMT the wiring methods recognized as providing the most mechanical protection to the enclosed wire conductors. Additionally, a properly installed steel RMC, IMC or EMT system is recognized by the NEC as providing its own equipment grounding path. This section of NECA 101 addresses general product information related to steel RMC, IMC and EMT, as well as manufactured elbows, nipples, couplings and integral fittings.