Nyob rau hauv fuses, nrog kev nce nyiaj ntawm tus nqi, tus nqi ntawm cov nyiaj yaj tau suav ntau tshaj li ib nrab ntawm cov nqi ntawm tag nrho cov fuse. Rau cov fuses ceev, nws yog qhov ceev kom nrhiav cov khoom yaj uas tuaj yeem hloov cov nyiaj dawb dawb. Tom qab xyoo ntawm kev ua qauv qhia, nws tau raug pov thawj tias txhuas yaj tuaj yeem hloov cov nyiaj yaj hauv ib qho kev qhia tshwj xeeb.
Tom qab hloov aluminium rau nyiaj hauv fuse ceev, tus nqi ntawm cov khoom siv txhuas yaj yog kwv yees li ib tsib caug ntawm cov nyiaj dawb huv tom qab kev suav ua ntej. Qhov thib ob, yog tias qhov tseem ceeb ntawm cov khoom lag luam yaj cov yam ntxwv tseem yog cov khoom siv nyiaj, feem ntau yog lub luag haujlwm rau cov cua sov dissipation muaj nuj nqi ntawm tooj liab tsis siv nyiaj, txij li xyoo 1980s, qee cov tuam txhab fuse tau ua qhov kev tshawb fawb txog qhov project no, thiab thaum kawg tsim cov nyiaj - tooj liab siv txoj siv sia.
Qhov loj ntawm cov nyiaj thiab tooj liab qhov chaw ntawm daim kab xev sib xyaw yog nyob ntawm qhov loj ntawm cov yaj yuav ua. Feem ntau hais lus, qhov loj dua qhov tshwj xeeb tam sim no ntawm lub fuse, ntau tus nqi ntawm kev ua yaj nrog nws txo qis. Hauv kev lag luam fuse ceev, kev ua tiav ntawm cov khoom siv yaj tshiab yuav txhim kho nws txoj kev sib tw nrog dc ceev hloov thiab lwm yam khoom siv hluav taws xob tiv thaiv.
Los ntawm arcing kev ua tau zoo thiab kev lag luam, qhov zoo ntawm cov tooj liab yaj ntau, yog tias koj tuaj yeem txhim kho lub peev xwm antioxidant thiab qhov tsis zoo ntawm qhov kub thiab txias kom yaj, ces yaj kuj tseem yuav nthuav dav daim ntawv thov ntawm tooj liab, cadmium alloys, peb siv txoj kev loj hlob tshiab ntawm tin semiconductor nws es tsis txhob ntshiab tin los yog aluminium tin alloy cov ntaub ntawv yuav ntxiv txo cov tooj liab yaj metallurgical cov yam ntxwv ntawm kev ua haujlwm kub thiab kev ua haujlwm zoo. thaum tawg me me overload tam sim no. Nyob rau hauv tag nrho cov ntau yam ntawm fuse, tsis tsuas yog nyob rau hauv qhov tsim nyog txoj hauj lwm ntawm cov yaj them nrog kub nyhuv, thiab nyob ze ntawm lub kub nyhuv point kuj them nrog ptfe los yog polyethylene roj ntau lawm arc extinguishing raj. Japanese ua high voltage tag nrho cov fuse, nyob rau hauv uas lub yaj yog ua los ntawm kub silicon alloy.