Conduit installations
A conduit tube, channel pipe which insulated conductors are
contained. There are three types con-
duit used electrical installation work: steel, PVC and flexible. Solid drawn conduit seamless tube which is
much more expensive and only used for special gas-tight, explosion-proof
or flameproof installations.
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Definitions
In the margin write down short definition a‘competent person’.75m lengths and typical sizes are 16, 20, and
32mm. wide range fittings available and the conduit fixed using
saddles pipe hooks, shown Fig.
Definition
A conduit tube, channel pipe
in which insulated conductors are
contained. Conduit tubing and fittings are supplied black enamel finish
for internal use hot galvanized finish for use external damp instal-
lations. The conduit, effect, replaces the PVC outer sheath cable,
providing mechanical protection for the insulated conductors.Basic Electrical Installation Work
306
has been below 0°C for the previous 24h because the insulation becomes
brittle low temperatures and may damaged during installation.
Conduit supplied 3. conduit
installation can rewired easily altered any time, and this flexibility,
coupled with mechanical protection, makes conduit installations popular
for commercial and industrial applications.
Through
box
‘T’ three-way
box
Saddle Space bar
saddle
Distance
saddle
Pipe hook, or
crampet not
used for
surface work
Back outlet
box
Terminal
box
FIGURE 14.
. Heavy gauge made from a
sheet steel welded along the seam form tube and used for most
electrical installation work.24.24
Conduit fittings and saddles. 14.
STEEL CONDUIT
Steel conduits are made specification defined 4568 and are
either heavy gauge welded solid drawn
