Ho ts'oaroa ha lehalima ke mosireletsi oa bohlokoa tsamaisong ea motlakase, e tla sebelisoa ho etsa lisebelisoa tsa mantlha tsa motlakase khahlano le Voltage e fetelletseng. matla, hona joale a na le li-microamp level feela; ha motlakase o felile, hajoale hore ka zinc oxide varistors e matha, e ka lokolla ka potlako matla a motlakase o fetang matla, ka hona ea fokotsa boholo ba motlakase, hajoale, zinc oxide varistor le eona e na le likarolo tsena tsa phallo e kholo ea lebelo, lebelo la karabelo e potlakileng, lebelo la karabelo e potlakileng, ts'ebetso e ntle ea ts'ireletso joalo-joalo. Bokhabane ba batšoaruoa bo fihlela litlhoko tsa Standard IEC60099-4.