Electric Wiring, 3rd Edition

Non-metallic conduit 131

If

a

tape

is

used it should not be used for pulling in the

cables.

A draw-wire

should be attached to the tape and pulled through first. When it emerges, the

cables to be drawn into the tube are fastened to the tail end

of

the draw-wire

and pulled

in.

There

is

often

a

temptation

to

save money

on

tubes

by

employing

a

draw-tape

and

cramming each tube with more cables than

it

should hold. This practice must

be

avoided

at all

costs.

Cooke's cutters

Cooke's cutters should form

a

part

of

an electrician's equipment. This is an

implement for cutting a hole in a steel or iron plate where ordinary drilling is

out

of

the question ...