An electrical conduit is a durable tube or covering used to protect electrical wires in a building or structure from damage.
This can be metal, plastic, fiber, or burnt clay. Most conduit is rigid, but flexible conduit is used for some purposes.
Types of Electrical Conduit
There are different types of electrical conduits
- Electrical Metallic Tubing.
- Rigid Metal Conduit.
- Intermediate Metal Conduit.
- Flexible Metal Conduit.
- Liquid-tight Flexible Metal.
- Electrical Non-Metallic Tubing.
- Rigid PVC Conduit.
Electrical Conduit Diameter Chart
| Size of Trade | Inside Diameter | Outside Diameter | Radius |
| 1/2 | 0.622 | 0.706 | 0.311 |
| 3/4 | 0.824 | 0.922 | 0.412 |
| 1 | 1.049 | 1.163 | 0.525 |
| 1 to 1/4 | 1.380 | 1.510 | 0.690 |
| 1 to 1/2 | 1.610 | 1.740 | 0.805 |
| 2 | 2.067 | 2.197 | 1.034 |
| 2 to 1/2 | 2.371 | 2.875 | 1.366 |
| 3 | 3.356 | 3.500 | 1.678 |
| 3 to 1/2 | 3.834 | 4.000 | 1.917 |
| 4 | 4.334 | 4.500 | 2.164 |
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