Uma kukhulunywa ngezinhlelo zokusabalalisa ugesi, ukukhetha kwekhabuli kubalulekile ukuqinisekisa ukudluliswa kwamandla okusebenza kahle nokwethenjelwa. Enye inketho ethandwayo ikhebula lamandla le-aluminium elingu-8.7 / 15 kV. Leli kebula lenzelwe izinhlelo zokusebenza eziphakathi nendawo, okuvame ukutholakala kumanethiwekhi wokusabalalisa kagesi. Isebenza ngempumelelo ekulinganisweni kwamandla kagesi okungu-8.7 kV kuya ku-15 kV, okuyenza ilungele izimboni ezahlukahlukene.