Lub fuse yog tsim los ntawm yaj, arc extinguishing nruab nrab, M nyhuv point, insulating plhaub, tiv tauj davhlau ya nyob twg thiab qhia. Ntawm lawv, cov yaj feem ntau yog ua los ntawm tooj liab, nyiaj, thiab tooj liab-nyiaj cov ntaub ntawv sib xyaw, thiab siv cov nyhuv thermal tam sim no txhawm rau txhawm rau ua txhaum txoj cai tam sim no; lub arc extinguishing nruab nrab tuaj yeem nqus lub zog arc, txo qhov kub ntawm arc, thiab qhwv thiab nqus cov nqa ntawm arc kom nce qhov arc voltage.
Tshaj qhov hluav taws xob hluav taws xob hluav taws xob, yog li tua lub arc, thiab tib lub sij hawm cais thiab buffering cov neeg kho tshuab cuam tshuam thiab kub kub cuam tshuam ntawm arc ntawm lub fuse vaj tse; Thaum qhov tsawg-amplitude overload tam sim no ntws mus ntev, qhov qis-melting-point hlau (M effect point) kub accumulates thiab melts, siv metallurgy Cov nyhuv ua rau tawg hauv cov yaj. M effect point tuaj yeem txo qhov kub ntawm melting, txo lub sij hawm overcurrent flow, thiab tseem tuaj yeem siv los kho lub sijhawm fusing ntawm tsawg dhau.
