Cov laj thawj tau sau tseg raws li hauv qab no:
1. luv Circuit Court: uas yog, tam sim no ntws ncaj qha los ntawm qhov zoo mus rau qhov tsis zoo los ntawm cov hlau tsis dhau los ntawm cov khoom siv hluav taws xob. Tshwj xeeb tshaj yog yooj yim rau hlawv tawm lub hwj chim mov, thiaj li hais tias cov kab sab luv luv Circuit Court txhaum, fuse ceev so.
2. Overload: thaum lub load tam sim no ntawm tus kheej - rov qab fuse tshaj nws qhov ntsuas tam sim no, lub fuse yuav raug cua sov rau lub sijhawm ntev thiab fuse yuav tawg.
3. Pulse: Nyob rau hauv ib lub voj voog, tam sim ntawd nce tam sim no (piv txwv li, thaum lub Circuit Court yog nyob rau los yog lub hwj chim mov tsis ruaj khov), tam sim ntawd surge ntawm tam sim no yuav ua rau ib tug fuse tshuab.
Cov no yog cov laj thawj rau fuse kab tsis ua haujlwm rau fuse, tau kawg, muaj qee qhov kev mob ntxiv tuaj yeem ua rau lub fuse ceev, zoo li lub fuse installation ntsia hlau tsis nruj, lossis fuse puas thiab lwm yam sab nraud tuaj yeem ua rau fuse fuse.