Ntchito Yomanga ndi Mbali

Makina osinthira katiriji osavuta osinthira katiriji popanda kuwononga maziko a SPD.

Ogwiritsa ntchito safunikira kuchotsa chivundikirocho pamene akuchotsa katiriji.

Chizindikiro cha digiri ya varistor's abrasion (green-red signisation) yosonyeza kufunikira kosinthira katiriji yomwe ikugwirabe ntchito isanathe komaliza ndikutulutsa SPD.

Kuzungulira kwakutali popanda kukonzekera kulikonse. Kwa aliyense wa SPD yathu ndikotheka kungowonjezera zida zakutali zakanthawi iliyonse nthawi iliyonse. Chizindikiro chakale chimayenera kuwonjezedwa nthawi yopanga isanachitike, kotero ogwiritsa ntchito amafunika kudziwa pasadakhale zinthu zomwe angafunike ndi chizindikiritso motero amafunika kuti azikhala ndi katundu wambiri wosasinthasintha.