Boleng bo phahamengli-circuit breaker tse bōpiloengamohela likhokahano tsa koporo tse pherese tsa boleng bo holimo, polasetiki ea boenjiniere e thibelang malakabe le litsamaiso tse nepahetseng tsa ho tima arc. Bokhoni ba tsona ba hona joale le ba ho robeha bo tsitsitse ho latela maemo a tloaelehileng. Li fana ka tšireletso e nepahetseng ea ho jara boima le potoloho e khuts'oane, litšobotsi tse tsitsitseng tsa ho khoptjoa, ho phahama ha mocheso o tlase, ho hanyetsa arc, ts'ebetso e matla ea ho futhumatsa, ts'epo e phahameng ea ts'ebetso ea nako e telele, 'me li loketse maemo a bohlokoa joalo ka kabo ea indasteri le motlakase. Li na le nako e telele ea waranti 'me li fetile mangolo a thata.
Tshebetso ya dihlahiswa tsa maemo a mahareng ha e le hantle e fihlela ditlhoko tsa kabo ya matla a baahi. Disebediswa le ditshebetso di boleng bo mahareng. Ho nepahala ha tshireletso ho a amoheleha. Bokgoni ba ho robeha le ho tshwarella di tlwaelehile. Moroalo o moholo wa nako e telele o kotsing ya ho hlahisa mocheso le ho tsofala, mme sekgahla sa ho hloleha se hodimo hanyane.
Lihlahisoa tse tlaase hangata li sebelisa thepa ea koporo ea boleng bo tlaase kapa likarolo tse koahetsoeng ka koporo, tse nang le meaho e bonolo ea ho tima arc, liparamente tsa tšireletso tse tšoailoeng ka bohata, likotsi tse kholo tsa ho khoptjoa, ho hloleha ho sebetsa kapa ts'ebetso ea bohata, ho lieha ha malakabe hampe, 'me li na le tšekamelo ea ho baka ho cha, lipotoloho tse khutšoane kapa esita le mollo, tse hlahisang likotsi tse hlahelletseng tsa polokeho. Li sebelisoa haholo lipotolohong tsa nakoana kapa tse seng tsa bohlokoa.