Ko te raarangi hua nui: 220kV me te ngaohiko o raro Zinc oxide surge arrester, wehe wehe, fuse dropout, hiko pungarehu bus-pae ngongo, booster booster, Cable sheath voltage limiters (pouaka), wallhing bushing, 110kV and lower voltage prefabrication, Full cold shrinkable te wera ranei ka taea te whakaheke i nga taputapu taura, 500kV me te miihini whakakotahi hiko hiko me etahi atu momo hiko.