Le mveliso inokumelana okuphantsi kunye nomthamo omkhulu wokuthwala umbane, kwaye yintambo ekhethekileyo yocingo oluphathwayo olusebenzisa i-short-circuit grounding system. Iingenelo: Umxholo ophezulu wekopolo, ubumsulwa be-99.9%. Ukuqhuba okuphezulu, ukumelana okuphantsi, ilahleko ephantsi, umthwalo onamandla wamandla. Igqunywe ngumaleko wokukhusela ocacileyo, amanzi angangeni, i-sunscreen, i-antifreeze, ayigugi, ayigugi. Ukuprinta okukrelekrele: inokwenziwa ngokwezifiso, akulula ukuyicima.