October 2013
Intermediate to advanced
192 pages
8h 30m
English
Content preview from Electric Wiring, 3rd Edition
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132 Installation of conduit systems
Bending of rigid conduit
Cold bending of rigid P VC conduits up to about 25 mm outside diameter can
be quite successfully carried out for most of the angles encountered in normal
domestic installations. PVC has a tendency to straighten out after bending
and it is therefore necessary to overset each bend to allow for this. In cold
weather, it is often helpful to rub briskly over the area where the bend is to be
made with a rag to create sufficient friction to warm the conduit and make
bending easier.
Standard bending machines can be used to bend and set PVC conduit but it
is more usual to employ a bending
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