I-insulator ehlanganisiwe yokuvikela umbani iwuhlobo olusha lwesakhiwo esihlanganisiwe se-arc-proof insulator, esakhiwe ikakhulukazi i-insulating shroud, i-compression nut, i-briquetting block, i-briquetting block, i-metal cap, i-insulator eyinhlanganisela, i-arc striking rod, umkhono wokuvikela kanye unyawo lwensimbi oluphansi lwakhiwe okufanayo, futhi induku ye-arc eshayayo kanye nesigqoko sensimbi esiphezulu kuhlangene futhi kuhlanganiswe emzimbeni owodwa.Uma kushaywa umbani, induku eshayayo ye-arc kanye nomlenze wensimbi ongezansi ziyakhishwa, ukuze i-arc yamandla e-freewheeling ihanjiswe ku-arc striking rod ukuze ishise, ngaleyo ndlela ivikele izintambo ezifakwe ngaphakathi zingonakalisiwe.