1. Iingcingo zebhokisi yokuhambisa i-380V enobungqina bokudubula kufuneka isebenzise amandla amanqanaba amathathu angama-380V., hayi isigaba sesithathu 220V, ngenxa yokungabikho kocingo olungathathi hlangothi.
2. I-breaker circuit nganye ephumayo inokuvelisa kuphela i-voltage ye-380V phakathi kwazo naziphi na izigaba ezibini.
3. Kwiimfuno ze-220V, kufuneka kusetyenziswe intambo engundoqo ezine, ukubandakanya umgca ongathathi hlangothi (N), icwangciswe ngokukodwa ukudibanisa umgca ongu-N.
4. Ukuthotyelwa kokhuseleko, intambo engundoqo ezintlanu kunye nomqhubi okhuselayo (Ecingweni) kufuneka isetyenziswe, idityaniswe kwindawo ebiyelweyo.
5. Ukuba kukho izixhobo ezibini zombane ze-380V ezantsi (umz., abaweldi abathile), qhagamshela naziphi na izigaba ezibini kwi-breaker circuit, ukushiya isigaba sesithathu ngaphandle kwangoku.