Enwere ike ịhazi eriri ọkụ site na ebumnuche, nhazi, na ihe. Site na ebumnuche, enwere ike kewaa eriri ike na eriri nnyefe na eriri nkesa; site na nhazi, enwere ike kewaa ha ka ha bụrụ otu -core cables na multi{2}}core cables; na site na ihe onwunwe, enwere ike kewaa ha na eriri ọla kọpa na aluminom.
