Ko te whakamarumaru uira hiato insulator he momo hou o te hanganga whakakotahi o te arc-proof insulator, ko te nuinga o te tito o te uhi whakamarumaru, nati kōpeketanga, poraka pereki, poraka pereki nekeneke, potae whakarewa o runga, insulator hiato, arc striking rod, insulating sleeve and The He rite tonu te hanga o te waewae whakarewa o raro, a ka huihuia te rakau patu arc me te potae whakarewa o runga ka whakakotahi ki te tinana kotahi.Ka pa mai te uira, ka tukuna te rakau patu pewa me te waewae whakarewa o raro, kia nekehia te pewa auau hiko korekore ki te rakau patu pewa kia wera, na reira ka kore e pakaru nga waea Tiwhikete.