engineering recuitment UPPCL Technician Electrician 2022 Mock Test Electrician and Wireman Power Systems Transmission and Distribution
In order to protect the cable from moisture, gases or other damaging liquids in the soil and atmosphere:
1
steel casing
2
Cable has to be break at certain intervals
3
a layer of strong acid is provided over the insulation
4
A metallic sheath of lead or aluminium is provided over the insulation