Conduit Wiring Installation Method
Points : Conduit Wiring Installation Method
The first consideration is to choose the most suitable routes for the
conduits. The routes should, be chosen so as to keep the conduits are straight
as possible. It is recommended that to use manufactured bends, inspection
tees, elbows and junction boxes. Draw the lines on the suited routes by using
coloured thread, made the holes into the walls at the distance of 1 meter and
these holes arranged to equal distances.
Rawal plugs are inserted in these holes using hammer. It is recommended that
always use the correct size of cable, it will then be necessary to select the
appropriate size of conduit to accommodate these cables. If we use steel
conduit then cut the conduit to required length and made the threads on both
ends of the conduit using stock-and-die set. After that the sharp edges of the
conduits are making smoothly using files. The advantage of smooth edges, is
that the insulation of the cable can not be damaged. Joints the conduits to
each other with the help of necessary fittings such as elbows, G.l socket tee
etc. But in case of P.V.C conduit, there is no necessary to make the threads
on the conduit, these conduits are easily fitted to each other when we use
necessary fitting. After that cables which may be P.V.C/V.R.I are drawn
through in conduits. Switches and sockets are installed on the wooden or
plastic board but ceiling rose and lamp holder are fitted on wooden round
blocks.
A separate earth continuity conductor must be run with all P.V.C plastic
conduit system and connected to the consumer’s earthing terminal. In case of
steel conduit system make sure that the whole conduit system must be
electrically continuous, so that a current applied to any part of the conduit
will be conducted to earth from a given point. In last test the whole wiring
system using megger.
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