Lub fuse feem ntau yog tsim los ntawm ob ntu: yaj thiab lub fuse raj los yog lub rooj zaum fuse uas lub yaj raug ntsia.
1) Melt Lub yaj yog ib feem tseem ceeb ntawm lub fuse thiab feem ntau ua rau hauv filament lossis daim ntawv. Muaj ob hom khoom yaj, ib qho yog cov khoom siv melting tsawg, xws li txhuas, zinc, tin thiab tin-lead alloy, thiab lwm yam; lwm yam yog cov khoom siv melting siab, xws li nyiaj thiab tooj liab.
2) Melting tube Lub raj melting yog lub plhaub tiv thaiv ntawm cov yaj thiab tseem muaj cov haujlwm ntawm kev tua cov arc thaum cov yaj yaj.
