Dab tsi yog qhov ntsuas tseem ceeb ntawm kev fuse?
1. Rated voltage. Tus nqi voltage uas lub fuse tuaj yeem tiv thaiv thaum ua haujlwm ntev thiab ua ntej thiab tom qab tawg. Feem ntau sib npaug rau lossis ntau dua qhov ntsuas qhov ntsuas ntawm cov khoom tiv thaiv.
2. Rated tam sim no. Qhov tam sim no uas cov fuse tuaj yeem hla mus ntev ntev yog nyob ntawm cov kev tso cai kub nce ntxiv ntawm txhua ntu ntawm lub fuse ntev.
3. Fuse cov yam ntxwv.
4. Qhov kawg rhuav lub peev xwm. Qhov siab tshaj plaws qhov luv luv-tam sim no uas lub fuse tuaj yeem ntseeg tau tawg raws li kev ua txhaum yog lub ntsiab kev nyab xeeb kev ntsuas ntawm lub fuse.
5. I2t cov yam ntxwv. Thaum lub txim txhaum loj tam sim no, lub sijhawm tawg ntawm lub fuse yuav qis dua 20 milliseconds lossis luv dua. Yog tias nws sawv cev los ntawm cov txiaj ntsig zoo ntawm sine yoj, kev txheeb xyuas nws cov nyhuv thermal tsis yog qhov muaj tseeb txaus. Yog li no, qhov ua tau thermal yuav tsum tau hais tawm nyob rau hauv daim ntawv ntawm qhov tseem ceeb, uas yog I2t tus yam ntxwv. Hauv lwm cov lus, lub sijhawm nrawm ntawm yaj yaj yog sib npaug rau cov square ntawm qhov txhaum tam sim no.
6. Ua rau tsis muaj zog tshaj. Thaum lub fuse tawg ib qho kev sib txuas hluav taws xob, qhov inductance ua kom muaj qhov muaj peev xwm tawm tsam, uas tam sim ntawd yuav tshaj qhov ntsuas hluav taws xob ntawm qhov hluav taws xob ntau zaus. Nws tuaj yeem ua kom ntev ntawm arc extinguishing txheej txheem thiab tseem yuav ua kev puas tsuaj rau rwb thaiv tsev ntawm Circuit Court thiab khoom siv. Rau lub fuse nrog kev txwv tam sim no muaj nuj nqi, qhov tawg dhau-voltage yog qhov siab heev, thiab cov xim tshwj xeeb yuav tsum them rau qhov kev phom sij ntawm dhau-voltage uas tsim tawm thaum lub sijhawm tawg ua ntej siv.
