Thaum nquag ua haujlwm ntawm fuselink kaw lub raj fuse yog kho kom zoo dua rau ntawm txoj haujlwm kaw, Nyob rau hauv cov txheej txheem system occur faults, txhaum qhov tam sim no hauv fuse yaj tam sim ntawd thiab nqa thooj hluav taws xob yog, uas cia arc-extinguishing leeg tau rhaub thiab fexplode ntau lotofgas, Th-os yuav tsim muaj qhov siab thiab hauv qab ntawm cov tau nrog rau cov raj, Tom qab fuselink melt txav sib tiv tauj tsis muaj qhov muaj zog ntxiv dua, mecganismis muab tub thiab fuse tube poob tawm, Cutoutnow yog nyob rau hauv txoj haujlwm qhib, Thaum nws toswitch tawm thaum txiav tawm, kev ua haujlwm -or yuav tsum mus ntawm qhov chaw tiv thaiv kab hluav taws xob rub tawm mus rau qhov chaw sib cuag, pib thaum pib sib tiv tauj thiab ntu sib txuas lus sib tiv toj, tus neeg mob hu ua tus pabcuam sib cais tau sib cais ntawm cov neeg pabcuam raug muaj hluav taws xob thiab arc yuav lengthene-d hauv arc-extinguishing enclosure qhov sib txawv thiab tib lub sijhawm arc-exting tawg cov roj kom tshuab tawm lub arc thaum lub sijhawm tam sim no dhau xoom