Layout of Conduit Wiring

Layout of Conduit Wiring Points : Layout of Conduit Wiring Conduit can be ‘installed on the surface of walls, ceilings, girders, or concealed in concrete or plaster, or run under wood floors. In all cases, the conduit system of each circuit must be erected complete before any of the cables are drawn in. This is to prevent damage to the cables if the conduit was bent, screwed etc. with the cables inside. The conduit run should be continuous throughout its length and kept as straight as possible it should consist of either horizontal or vertical runs, never at an angle.

As mentioned in the section on Earthing, all conduit should be kept clear of gas, air, water, steam and pipes of other services. Gas pipes should be specifically avoided and the conduit should be either re-routed or set out so that at least 3 inches separates the pipes and conduit. If the conduit has to be run near air or water pipes, then spacers of wood or other insulating material should be inserted. If the two services are very close and there is a chance of them accidentally touching, then the conduit should be bonded to the pipe with a good clamp.

If conduit is run in humid conditions, and there is danger of condensation forming inside the conduit, then holes should be drilled at the lowest point of the conduit system or alternatively, conduit boxes with drainage holes should be fitted.