Tshem tawm fusetxiav tawmthiab load switching fuse cutout yog siv sab nraum zoov siv high voltage tiv thaiv ntaus ntawv, Tobe txuas nrog incomin-g feeder ntawm tis transformer los yog tis kab, nws tsuas yog tiv thaiv transformeror kab los ntawm luv luv Circuit Court thiab overloading, thiab on / off loading, tam sim no, tso tawm fuse cutout yog tsim los ntawm insulator kev txhawb nqa thiab fuse tube, static contacts yog tsau ntawm ob sab ntawm cov khoom siv hluav taws xob. tube yog tsim los ntawm sab hauv arcexting raj. Sab nrauv phenolic compound ntawv raj lossis epoxy glasstube, Load switching fuse cutout muab enfored elastic auxiliry contacts thiab arc-extinguishing exclosure rau switching on-off loading tam sim no.