Raws li peb txhua tus paub, alternating tam sim no yog alternating, yog li nws muaj ib tug xoom-hloov point, thaum direct tam sim no tsis muaj ib tug xoom-hloov point. Yog li ntawd, thaum tawg qhov txhaum tam sim no, lub arc ntawm qhov ncaj qha tam sim no raug tua, uas yog qhov nyuaj dua li kev rhuav tshem cov arc ntawm AC. Raws li tib qhov ntsuas hluav taws xob, lub zog arc tsim los ntawm DC arc yog ntau tshaj ob zaug ntawm AC arc zog. rau
Nws yog qhov tseeb vim tias nws nyuaj rau tawg DC dua li AC, yog li nyob rau hauv tib qhov ntsuas hluav taws xob, lub cev ntawm DC fuses feem ntau ntev dua li ntawm AC fuses.
Tsis tas li ntawd, thaum siv fuses hauv DC circuits, cov teebmeem nyuaj ntawm qhov muaj inductance thiab capacitance zog yuav tsum raug txiav txim siab. Yog li ntawd, lub sij hawm tas li τ yog qhov tseem ceeb uas tsis tuaj yeem tsis quav ntsej thiab yuav tsum raug ntsuas kom raug raws li qhov cuam tshuam luv luv tam sim no tshwm sim thiab attenuation tus nqi ntawm cov kab tshwj xeeb. , lub thickness thiab ntev ntawm cov yeeb nkab lub cev yuav tsum tau xaiv kom tsim nyog thiab ruaj ntseg.
Los ntawm cov tswv yim pom zoo, nws muaj peev xwm siv AC fuses tsis yog DC fuses. Txawm li cas los xij, vim muaj kev nyab xeeb, thaum AC fuses siv nyob rau hauv DC circuits, lawv yuav tsum tau siv ntawm qhov txo qis, xws li 1000V AC AC fast-fuse, uas yog txwv rau 440V DC. lub voj.