The material commonly used for sheaths of underground cables is
The material commonly used for sheaths of underground cables is
Right Answer is:
Lead
SOLUTION
The insulator conductors are covered with the lead sheath. This provides additional mechanical strength and also protects the cable from moisture.
Note: The most common material used as the sheath in today’s cables is Poly-Vinyl-Chloride or PVC. In earlier days, the lead was used as the sheath.