1. Ngemuva kokuthi umshini wokukhangisa uvuliwe, uhlelo luzodlala ngokuzenzakalelayo ulwazi lwesikhangiso sevidiyo, olungalawulwa yisilawuli kude, futhi ukusebenza kulula.
2. Umshini wokukhangisa kufanele ufakwe endaweni engenawo umoya, eyomile futhi eyisicaba. Ungasebenzisi emanzini noma eduze nawo.
3. Ukunikezwa kwamandla kagesi kudinga i-voltage ezinzile futhi ayikwazi ukwenziwa endaweni ene-voltage ephezulu kanye ne-low-voltage.

2022.03.08