I-ICU inikwe umlinganiselo wokuphela komjikelo omfutshane

Kukho iintlobo ezimbini zeempawu zokwaphuka kwamandlaiziphuli zesekethe: rated ultimate short-circuit breaking capacity ICU kunye nerated operating short-circuit breaking capacity Ics. Njengepharamitha ephawulekayo, i-Ics ayiqwalaseli nje kuphela umthamo wokuqhawula weukwaphuka kwesekether, kodwa njengesalathisi sokuphuka, oko kukuthi, emva kokuphuka iimpazamo ezininzi ze-short-circuit, isenokuqinisekisa ukusebenza kwayo okuqhelekileyo.abaphuli beesekethe zetyala elibunjiweyo, kufuneka kubekho i-ICU eyaneleyo yokuphula umbane we-short-circuit kunye nokucima iswitshi. Ngokwemigaqo, ii-Ics zekesi ebunjiweyoumephuli wojikelezoifanelekile logama nje ingaphezulu kwe-25%Icu. Okwangoku, uninzi lwee-Ics zee-circuit breakers ezikwimarike ziphakathi kwe-(50%-75%) ye-Icu, ngoko ke kwiinkqubo zokusasazwa kombane ezingadingi mbane uphezulu, yi-Icu kuphela ekufuneka iqwalaselwe.