Fuses tiv thaiv lub tsheb hluav taws xob los ntawm kev overloads thiab luv Circuit Court. Yog tias qhov ua tsis zoo tshwm sim hauv hluav taws xob lossis hluav taws xob ntau dhau ntawm cov neeg siv hluav taws xob, lub luv luv Circuit Court tshwm sim, nws dhau lawm. Lub xaim thiab cua tshuab ntawm lub tshuab hluav taws xob kub dhau, lub tshuab hluav taws xob hauv lub roj teeb tuaj yeem ua kom kub. Nws yog rau kev tiv thaiv qhov no uas fuses siv tau uas cuam tshuam qhov ntws ntawm tam sim no yog tias nws lub zog tshaj qhov pom zoo ntawm tus nqi.
Muaj peev xwm muaj ntau qhov laj thawj rau lub tshuab hluav taws xob: Ua ntej, kev puas tsuaj rau ib qho hluav taws xob lossis cov khoom siv hluav taws xob, nrog rau cov xov hluav taws xob nws tus kheej, vim qhov hluav taws xob luv luv tshwm sim. Raws li qhov kev puas tsuaj no, cov dej ntws tam sim no raws txoj kev luv dua nrog qhov uas tsis tshua muaj kev cuam tshuam tsawg. Raws li Ohm txoj cai lij choj, qhov txo qis ntawm qhov tsis kam ntawm ib ntu ntawm Circuit Court coj mus rau qhov kev sib luag ntawm lub zog tam sim no. Raws li qhov tshwm sim, qhov hluav taws xob hauv xov fuse hlawv tawm, lub xov tooj hluav taws xob tau qhib thiab luv Circuit Court tiv thaiv. Qhov ob yog kev tawm tam sim no (overload). Muaj tshwm sim thaum ib feem uas tau tsav los ntawm lub zog hluav taws xob tau txhaws. Hauv qhov no, qhov nce tam sim no tshwm sim sab hauv lub tshuab hluav taws xob nws tus kheej, uas lub fuse coj mus rau thiab hlawv tawm, tiv thaiv hluav taws xob Circuit Court. Hauv qhov no, qhov hluav taws xob tam sim no uas hlawv lub fuse (lub siab tam sim no ntawm nws lub plhaub) tsuas yog me ntsis dhau qhov hluav taws xob qub rau qhov hluav taws xob hluav taws xob. Hauv qhov no, qhov nce me me ntawm qhov voltage txheeb ze rau lub nominal voltage txaus rau lub fuse los tshuab. Qhov plaub, kev tiv tauj tsis zoo ntawm qhov thaiv thiab lub fuse. Hauv qhov no, lub fuse tsis tsuas yog hlawv tawm, tab sis nws lub cev yog melted ua ke nrog block. Qhov no feem ntau tshwm sim thaum siv cov fuses tsis zoo uas tsis hlawv tawm, tab sis yaj, ua rau cov neeg tiv tauj hlawv tawm thiab yaj cov yas ntawm lub thawv fuse. Qhov no yog qhov tsis xws luag, vim nws tuaj yeem ua rau tag nrho lub thawv fuse. Thib tsib, qhov poob ntawm cov khoom siv los ntawm fuse. Qhov no tshwm sim dhau ntawm lub sijhawm, thaum qhov chaw ntawm qhov fuse ua rau thaj chaw nrog qhov sib tshooj me me thiab tuaj yeem yog qhov ua kom muaj cua sov, kev co, poob siab, vim tias qhov sib dhos ntawm qhov fusible yog li txo uas nws tsis tuaj yeem tiv thaiv thiab tawm suab nrog qhov nce me ntsis ntawm tam sim no. hlawv tawm feem ntau tsis yog thaum lub sijhawm ua haujlwm, tab sis thaum lub sijhawm hluav taws xob hluav taws xob tau qhib. Qhov no tau piav qhia los ntawm qhov tseeb tias cov xov hlau ntawm kab xov hluav taws xob nce lawv qhov kev tawm tsam thaum rhuab. Nyob rau lub sijhawm hloov ntawm, cov xov tsis rhaub, yog li ntawd lawv cov tsis kam, thiab qhov ntws tam sim no siab dua li ib txwm. Raws li nws ua kom sov, qhov tsis kam nce thiab qhov tam sim no tsawg dua. Nws pom tseeb tias thaum lub sijhawm hloov ntawm, kev tso hluav taws xob tam sim no tshwm sim, ntawm qhov siab tshaj qhov tam sim no noj nyob rau hauv hom qub. Qhov uas tsis tshua muaj tshwm sim, lub fuses tuaj yeem tawg thaum lub Circuit Court muab tua. Qhov no tshwm sim vim hais tias thaum lub sijhawm kaw, dej siv hluav taws xob ntxiv, uas hlawv cov fuse. Qhov tshwm sim no muaj ntau dua rau cov ntu ntawm qhov xov xwm hauv Circuit Court uas muaj cov khoom sib tshooj.
