Conduit wiring is a system of wiring using tubes (pipes) either steel or PVC, to provide good mechanical protection for its conductors drawn inside the tubes. It also gives high degree of protection from fire hazards to its conductors. Conduit pipes will be installed on the surface of walls or roofs by means of saddles or hooks or concealed inside the wall or roof or floor.
Modern building construction adopts conduit wiring (PVC conduit or GI conduit both in various mechanical strength depending on site requirement and project specification) and found mainly in two types: 1) Surface or Open type conduit installation, and 2) Concealed type conduit installation.
Steel Conduits and Fittings are made out of heavy / medium / light gauge steel. It uses different technologies. In general interior and exterior wires ways shall be Electrical Metallic Tubing (EMT). Coupling and connector used with tubing shall be made up tight.