Question

Aluminium transmission wires are preferred than copper transmission wires. Give two reason

Answer 1

Answer:-

Reason:-

Aluminium is lighter than copper and almost as good a conductor. The weight is important since the transmission wire stretches between poles, and we want less poles. As such, the actual transmission wires used are called ACSR cable, stands for Aluminium Cable Steel Reinforced. The wire is made from a center steel wire for strength and wrapped around it are several Aluminium wires. The steel allows to place the supporting poles further apart.

Answer 2

They are good conductor of electricity and have low resistivity.