Which of the following conventional
methods of laying underground cables is NOT used nowadays ?
Laying in troughs
Laying cables on racks and cleats
Laying directly in the ground
Drawing into pipes or ducts
Laying in troughs
There are mainly three methods of
lying underground cables is used which are given following
(A) Direct
laying
(B) Draw
is system
(C) Solid
system
So, laying in trough is not conventional method of laying underground cable.
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