Izintambo eziphezulu ze-aluminium zisetshenziswa ngaphandle ezindaweni zokusabalalisa.Athwala amandla asuka emigqeni yezinsiza aye ezakhiweni ngokusebenzisa isimo sezulu.Ngokusekelwe kulo msebenzi othile, izintambo zibuye zichazwe njengezintambo zokudonsa isevisi.Izintambo eziphezulu ze-aluminium zihlanganisa i-duplex, i-triplex, nezinhlobo ze-quadruplex.Izintambo ze-Duplex zisetshenziswa emigqeni kagesi yesigaba esisodwa, kuyilapho izintambo ezinezintambo ezine zisetshenziswa emigqeni yamandla yezigaba ezintathu.Amakhebuli e-Triplex asetshenziswa kuphela ukuthwala amandla ukusuka kolayini bezinsiza kuya kumakhasimende.
I-aluminium conductorizintambo zenziwe ngochungechunge oluthambile lwe-aluminium 1350-H19.Afakwe i-polyethylene e-thermoplastic extruded noma i-polyethylene exhunywe ngokuphambana ukuze avikeleke ezimeni zemvelo eziyinkinga zangaphandle.Izintambo ziklanywe ngezinga lokushisa elifinyelela ku-75 degrees kanye nesilinganiso se-voltage esingu-600 volts.