I-1.Isantya sikhawuleza kakhulu kwaye umthamo wemveliso uphezulu. Xa kuthelekiswa nomatshini ophantsi, imveliso kunye nokusetyenziswa kwamandla ngexesha elifanayo kunenzuzo ebonakalayo.
I-2.Izixhobo zombane ezibizwa ngeBrand ezifana neMitsubishi, Yaskawa, njl., zinomgangatho othembekileyo kwaye zilungile emva kokuthengisa.
I-3.DC injini ephambili, inobomi obude kunye nokusebenza okuzinzileyo nokuthembekileyo. Iinjini zeDC zinokufakwa kwezinye iindawo.
4.Ngokwenjongo ethile, sinokunika isicwangciso esifanelekileyo sokuqhawula.