Ikhebuli yokusabalalisa ugesi noma amanethiwekhi amancane wokudlulisa ngokuvamile asetshenziswa njengokuphakelwa okuyinhloko Kumanethiwekhi Ezohwebo, Izimboni kanye nezindawo zokuhlala zasemadolobheni.Ifanele amasistimu amaphutha aphezulu alinganiselwe kufika ku-10kA/1sec.Ukwakhiwa okukalwe okunephutha eliphezulu kuyatholakala ngesicelo.