Ko te pūpare uira whakauru-toru-wāhanga he momo pūpare uira hou e whakamahia whānuitia ana hei tiaki i te whakawhiti hiko, te pana, te pae bas, te ine hiko, te pūnga utu whakarara i roto i te pūnaha hiko 35kV, ka taea hoki e ia te whakawhāiti i te ngaohiko nui o te hau, te kaiwawao ara iahiko korehau, te āputa ki te whenua, te āputa ki te āputa. Ko te pūmau rama whakauru-toru-wāhanga he momo pūmau rama e whā ngā whetu, nō reira ka taea te tiaki i ia wāhanga ki te whenua me ia wāhanga ki te wāhanga mai i te ngaohiko nui rawa atu. Nā tōna hanganga atamai, he rite tana mahi ki ngā pūmau rama e ono, ā, ka whakaoti rapanga hoki kāore e taea e ngā pūmau rama te tiaki pai i te wāhanga ki te wāhanga. Ka taea e te pūmau rama whakauru-toru-wāhanga te noho āputa, te kore raupapa rānei.
