GI conduits are generally used for cable and wire systems because of their strong ability to tolerate many twists and bends. Overall, GI conduits improve the ability of cables and wire systems to withstand large amounts of weight and longitudinal stress with little distortion or breakage.

In practice, these two methods of electrical power cable protection and concealment are very similar. However, they each have their own advantages and disadvantages in particular applications.

Conduit is typically the cheaper and more basic approach to wiring protection. It’s widely used wherever smaller cable bundles or individual wires are being run between two terminals, from point A to point B. If they simply need to be protected, tidied up, and/or hidden from view, conduit is often the easiest option.

GI Conduit is a pipe used to protect and route electrical wiring in a building or construction. It provides very good protection to enclosed conductors from impact, moisture, and chemical vapors.

Major types are

• ANSI ( American National Standard Institute)/ UL (Under Writers Laboratories)
• BS (British Standard) pipes
• JIS (Japanese Industrial Standard)

Rigid metal conduit / Rigid Steel Conduit ( RSC) - UL 6 ANSI C80.1

Intermediate metal conduit (IMC) - UL 1242 ANSI C80.6

Electrical metallic tubing (EMT) - UL 797 ANSI C80.3

Flexible metal conduit - UL 1

Liquid-tight flexible metal conduit

EMT / IMC – ½ inch to 4’’ RSC – ½ inch to 6 inch

BS 4568 Class 4 & Class 3 ( 20mm, 25mm & 32mm)

BS31 Pipes ¾ inch to 2 inch