Standard Dimensions of Electrical Conduit Pipes according to BS 6099 |
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| Nominal Pipe Size |
Mean Outside Diameter (mm) |
Thickness (mm) |
Minimum Wall Thickness other than sockets (mm) |
|
| Min. | Max. | |||
| 1/2 | 17.0 | 17.3 | 1.04 | 0.086 |
| 3/4 | 21.2 | 21.5 | 1.25 | 0.125 |
| 1 | 26.6 | 26.9 | 1.33 | 0.173 |
| 1-1/4 | 33.4 | 33.7 | 1.51 | 0.245 |
| 1-1/2 | 42.1 | 42.2 | 1.86 | 0.398 |
| 2 | 60.2 | 60.5 | 2.04 | 0.612 |
| 3 | 89.7 | 89.1 | 1.80 | 0.798 |
| 4 | 114.1 | 114.5 | 1.90 | 1.032 |
| The standard length is 6 meters. | ||||