Inkcazelo emfutshane:

I-HM4 i-medium-voltage breaker circuit breaker isebenzisa i-sulphur hexafluoride (SF6) igesi njenge-arc yokucima kunye ne-insulating medium. Irhasi ye-SF6 ineempawu zokuqhawuka ezigudileyo, kwaye xa iqhekeza ngoku kuyo, akukho nto yangoku yokunqunqa kwaye akukho overvoltage yokusebenza eyenziwayo. Olu phawu lubalaseleyo luqinisekisa ukuba i-breaker circuit inobomi obude bombane. Ngaphezu koko, ngexesha lokusebenza, ayinayo impembelelo kumothuko wesixhobo, inqanaba le-dielectric, kunye noxinzelelo lobushushu. Ikholomu yesibonda somqhekezi wesiphaluka, oko kukuthi, inxalenye yegumbi lokucima i-arc, yinkqubo evaliweyo yokulondoloza ubomi. Ubomi bayo bokutywinwa buhambelana nemigangatho ye-IEC 62271-100 kunye ne-CEI17-1.