Steel conduit has been in use as a “raceway system” for electrical conductors since the early 1900s. The strength of steel makes galvanized steel rigid conduit, intermediate metal conduit and electrical metallic tubing the wiring methods recognized as providing superior mechanical protection to the enclosed wire conductors. Additionally, a properly installed metal raceway system is recognized by the National Electrical Code® (NEC) as an equipment grounding conductor. The basic types of steel raceways in use today are steel rigid metal conduit (RMC), intermediate metal conduit (IMC) and electrical metallic tubing (EMT).
Electrical Metallic Tubing (EMT)
Learn more about this threadless thin-wall steel raceway.Read More >>