Lub fuse hauv qhov hluav taws xob qis hluav taws xob faib hluav taws xob yog cov khoom siv hluav taws xob uas ua lub luag haujlwm hauv kev tiv thaiv kev nyab xeeb. Lub fuse yog siv dav hauv kev tiv thaiv kab hluav taws xob thiab kev tiv thaiv cov khoom siv hluav taws xob. Thaum daim phiaj hluav taws xob lossis cov khoom siv hluav taws xob luv luv los yog overloaded, nws tuaj yeem txiav tawm Circuit Court kom tsis txhob muaj cov khoom siv hluav taws xob puas tsuaj los tiv thaiv kev sib kis.
Lub fuse yog tsim los ntawm lub hauv paus insulating (los yog kev txhawb nqa), kev sib cuag, yaj, thiab lwm yam. Lub yaj yog lub ntsiab ua haujlwm ntawm lub fuse. Lub yaj yog sib npaug rau cov xov hlau tshwj xeeb txuas nrog hauv series hauv Circuit Court. Thaum lub Circuit Court luv luv los yog overloaded, tam sim no loj heev, lub melts melts vim overheating, yog li txiav tawm Circuit Court. Melts feem ntau ua rau filaments, grids los yog flakes. Cov khoom siv yaj muaj cov yam ntxwv ntawm qhov qis melting point, ruaj khov yam ntxwv thiab yooj yim fusing. Cov hlau xws li txhuas-tin alloys, nyiaj-plated tooj liab los xij, zinc, thiab nyiaj feem ntau yog siv. Nyob rau hauv tus txheej txheem ntawm melting thiab txiav tawm Circuit Court, ib tug arc yuav generated. Txhawm rau tua cov arc kom zoo thiab ua tau zoo, cov yaj yog feem ntau ntsia rau hauv lub plhaub fuse, thiab kev ntsuas raug coj los tua cov arc sai.
Fuses muaj qhov zoo ntawm cov qauv yooj yim, siv yooj yim thiab tus nqi qis, thiab tau siv dav hauv cov tshuab hluav taws xob tsawg.
