Fuses yog tsim los ntawm 3 yam ntawm cov yaj, plhaub thiab kev txhawb nqa, nyob rau hauv uas yaj yog lub ntsiab tseem ceeb los tswj fusing cov yam ntxwv. Cov khoom, qhov loj thiab cov duab ntawm lub yaj seb tus fusing yam ntxwv. Cov khoom siv tau muab faib ua ob pawg: qhov nruab nrab ntawm lub cev thiab lub siab melting. Cov hmoov txhuas tsis tshua muaj melting cov khoom xws li cov hlau txhuas thiab hlau sib dhos, cov hmoov melting yog qhov yooj yim thiab yooj yim rau fuse, vim nws cov loj tiv taus, nws tau ua rau hauv qhov loj dua ntu ntawm cov yaj, cov pa taws ua ntau dua, tsuas yog muaj feem xyuam rau tsis tshua muaj siab ploj ntawm lub fuse. Cov teeb meem melting cov khoom xws li tooj liab, nyiaj, nws qhov chaw siab melting, tsis yoojyim rau fuse, tab sis vim nws cov resistivity uas tsis tshua muaj, tuaj yeem ua tau tsawg tshaj qhov qis melting ntawm cov tawv me me hla qhov loj, lub fuse me me, haum rau siab txhaum tawg ntawm lub fuse. Tus duab ntawm lub yaj yog muab faib ua ob hom: Cov xim thiab ua banded. Hloov cov duab ntawm qhov sib txawv hauv seem-seem kuj hloov tau qhov fuse cov yeeb yam. Fuses muaj ntau yam kev sib txawv ntawm cov fusing, uas tuaj yeem siv rau ntau hom kev tiv thaiv khoom.
