Kuwunika Mkhalidwe Mwachangu: Chizindikiro Chofiira/Chobiriwira kuti muthetse mavuto mwachangu.
DinKuyika Sitima: Kukhazikitsa kotetezeka komanso kosavuta kuti kugwiritsidwe ntchito m'mafakitale.
Yogwirizana ndi dzuwa PV: Yopangidwira makina opangidwanso mphamvu okhala ndi 500V.
Kugwiritsa Ntchito M'mafakitale Ndi Pakhomo: Koyenera kukonzedwa m'mabizinesi ndi m'nyumba.