When To Use Flexible Metal Conduits?

When To Use Flexible Metal Conduits?

- Nov 15, 2019-

Flexible Metal Conduit, is heavy-duty galvanized steel tubing that is installed with threaded fittings. It is typically used outdoors to provide protection from damage and can also provide structural support for electrical cables, panels, and other equipment. Flexible metal conduit is sold in 10- and 20-foot lengths and has threads on both ends.

Intermediate metal conduit, or IMC, is a thinner, lighter-weight version of rigid metal conduit and is approved for use in all of the same applications as RMC. Because IMC is lighter and easier to work with than RMC, it is more common in new construction.

Wire ducts protect and route electrical wires. It can be made from many materials, including metal, plastic, fiber or calcined clay. There are flexible and rigid catheters. The type of conduit used is determined by national and local regulations through wiring regulations.

By analyzing the wiring, you can determine when to use a flexible metal conduit instead of a rigid conduit. Flexible metal conduits typically range in diameter from 3/8 to 4 inches, but are typically ½ to 3/4 inches. It is mainly used where rigid catheters are difficult to bend because flexible catheters can bend.

Although flexible conduits are easier to work with than rigid conduits, it offers less protection for the conductors it carries. Bending a rigid conduit can be an arduous task so it is often preferable to opt for the flexible variety. Being a metal conduit, it has an advantage over PVC conduits which cannot bend. It may also serve as the grounding path although some local codes may require that you also run a green grounding wire.