in a transmission line the aluminium cor is sarrounded and
in between there is a another type of matrial what is that?

Answer Posted / rishi tiwaeri

if you are taling about overhead line then al uminium is
not in center because of skin effect
if you are takling about expanded wire then there is
fiborus or paper type insulation is used
if in udergrond there is dffreent type pvc & valcunized
rubber is used depend open the voltage stress & working
temprature

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