Okokuqala, singabheka izici zamafuse kagesi aphezulu.
Njengoba sazi, umsebenzi weama-fuse aphezulu kagesiukuvikela umjikelezo.Okusho ukuthi, lapho i-current in circuit idlula inani elicacisiwe, ukuncibilika ngaphakathi kwe-fuse kuzokhiqiza uhlobo lokushisa ukuphula isifunda.Ngakho-ke, ezintweni zokuhlanganisa amandla kagesi aphezulu, kudingeka zibe nendawo encibilikayo ephansi, ukucisha kalula izici ze-arc.Ngokuvamile kufaka phakathi ithusi, isiliva, i-zinc, i-lead, i-lead tin alloy nezinye izinto.Ngenxa yokuthi amaphuzu ancibilikayo alezi zinto ahlukile, izinto ezahlukene ziyadingeka emisinga ehlukene.Amazinga okushisa abo okuncibilika ahambisana no-1080 ℃, 960 ℃, 420 ℃, 327 ℃ no-200 ℃ ngokulandelana.
Imiyalo yokusetshenziswa kwalezi zinto ezihlukene imi kanje:
1. Iphuzu lokuncibilika le-zinc, i-lead, i-lead-tin alloy nezinye izinsimbi liphansi kakhulu, kodwa ukumelana nokumelana kukhudlwana.Ngakho-ke, ukusetshenziswa kwendawo ye-fuse cross-sectional kukhudlwana, umhwamuko wensimbi okhiqizwa lapho ukuxutshwa akusizi ukucisha i-arc.Isetshenziswa kakhulu kwisekethe engaphansi kwe-1kV.
2. I-Copper nesiliva inamaphuzu aphezulu okuncibilika, kodwa ukumelana okuncane nokuhamba kahle kagesi kanye ne-thermal.Ngakho-ke, ukusetshenziswa kwe-fuse cross-sectional area kuncane, umhwamuko wensimbi okhiqizwa lapho uhlanganisa uncane, kulula ukucisha i-arc.Ingasetshenziswa ku-voltage ephezulu, isekethe yamanje ephezulu.Kodwa-ke, uma i-current inkulu kakhulu, izinga lokushisa lesikhathi eside liphezulu kakhulu, kulula ukubangela ukulimala kwezinye izingxenye ku-fuse.Ukuze wenze i-fuse encibilike ngokushesha, kufanele igeleze ngokusebenzisa i-current enkulu, ngaphandle kwalokho izokwandisa isikhathi se-fuse, esingathandeki emishini yokuvikela.Ukuze kuqedwe lokhu kushiyeka, ithini noma i-pellet yokuhola ivame ukushiselwa ekuncibilikeni kwethusi noma kwesiliva ukuze kuncishiswe izinga lokushisa elincibilikayo futhi kuthuthukiswe ukusebenza kokuvikela kokuncibilika.
Isikhathi sokuthumela: Feb-27-2023