Keeb kwm ntawmFuses
Lub fuse txo hwj chim muaj keeb kwm nplua nuj uas hnub rov qab mus rau thaum ntxov xyoo pua 19th, nyob rau hauv me nyuam mos ntawm hluav taws xob engineering. Nws yog lub sijhawm no uas tib neeg tau pib nkag siab txog qhov muaj peev xwm txaus ntshai ntawm cov hluav taws xob ntau dhau uas tsis tuaj yeem ua rau cov khoom siv hluav taws xob puas tsuaj xwb tab sis kuj ua rau hluav taws kub. Txoj kev daws teeb meem? Ib qho cuab yeej uas tuaj yeem cuam tshuam qhov ntws ntawm hluav taws xob thaum lub sijhawm tam sim no dhau los dhau lawm. Tab sis li cas cov cuab yeej no tuaj rau hauv lub neej?
Nyob ib ncig ntawm 1864, thawj zaug ntawm cov khoom siv no tuaj hauv daim ntawv ntawm cov xov hlau fusible lossis nyias daim hlau. Cov Cheebtsam no tau tsim los yaj thaum tam sim no dhau ntawm ib qho chaw pib, ua haujlwm tau zoo thiab tiv thaiv ob lub voj voog thiab khoom siv. Qhov no cim lub hnub yug ntawm lub fuse ua ib qho khoom siv tiv thaiv hluav taws xob.
Fuse Technology: Los ntawm Edison mus rau Hnub Nyoog Kawg
Xyoo 1890, tus kws tsim khoom nto moo Thomas Edison tau txais patent rau hluav taws xob fuse, ntxiv cementing nws qhov chaw hauv hluav taws xob engineering. Edison tus tsim yog ua raws li cov hlau lead, ib qho yooj yim tab sis siv tau zoo.
Txij thaum ntawd los, lub fuse tau hloov zuj zus. Tshwj xeeb tshaj yog nyob rau hauv lub thib ob ib nrab ntawm lub xyoo pua 20th, nrog rau kev nce qib ntawm cov tshuab hluav taws xob, kev tsim cov fuses tau ua ntau meej thiab txhim khu kev qha. Niaj hnub no cov fuses tuaj yeem hloov kho raws li cov kev xav tau tshwj xeeb xws li cov yam ntxwv tam sim no, cov yam ntxwv ntawm lub sijhawm, thiab muaj peev xwm tawg tau los muab kev tiv thaiv hluav taws xob zoo thiab meej.
Tab sis dab tsi niaj hnub fuse zoo li thiab nws ua haujlwm li cas?
Lub Anatomy ntawm Fuse
Lub fuse feem ntau muaj ntau yam tseem ceeb:
Fuse Hlau:Qhov no yog lub plawv ntawm lub fuse. Ua los ntawm cov hlau los yog hlau alloy nrog lub melting point tsawg thiab siab tsis kam, nws yog tsim los yaj thiab disconnect lub Circuit Court thaum tam sim no tshaj nws rated peev.
Fuse Holder:Qhov no insulating tivthaiv lub tsev thiab ruaj lub fuse hlau, muab kev txhawb nqa thiab kev sib txuas rau lub fuse, thaum tseem tiv thaiv tus neeg siv los ntawm tej zaum yuav hluav taws xob shock.
Fuse Cap:Nyob rau sab saum toj ntawm lub fuse, lub npog tiv thaiv no tiv thaiv lub fuse los ntawm kev cuam tshuam sab nraud thaum tiv thaiv kev sib tsoo nrog cov khoom siv hluav taws xob.
Fuse Base:Ua raws li qhov txuas rau lub fuse, cov khoom no feem ntau nyob hauv lub voj voog. Nws tso cai rau kev ntxig thiab tshem tawm ntawm lub fuse thiab ua kom muaj kev sib txuas hluav taws xob zoo.
Fuse Indicator:Qee lub fuses muaj qhov ntsuas los qhia seb lub fuse puas ua haujlwm zoo. Thaum lub fuse tshuab, qhov taw qhia qhia tias nws yog lub sijhawm los hloov lub fuse.
Nkag siab cov yam ntxwv fuse
Thaum xaiv lub fuse, nws yog ib qho tseem ceeb kom nkag siab txog nws cov yam ntxwv tseem ceeb:
Rated voltage:Qhov no txiav txim siab lub fuse lub peev xwm los suppress arcs tom qab qhib. Lub fuse qhov ntsuas hluav taws xob yuav tsum muaj tsawg kawg yog qhov loj npaum li qhov hluav taws xob ntawm qhov kev tiv thaiv hluav taws xob, feem ntau yog li ntawm 125V txog 600V rau qhov hluav taws xob qis.
Rated Tam sim no:Qhov no sawv cev rau qhov siab tshaj plaws tam sim no uas lub fuse tuaj yeem nqa tau zoo. Qhov ntsuas tam sim no ntawm lub fuse yuav tsum tsis pub tshaj qhov tam sim no-nqa lub peev xwm ntawm cov hlau hauv Circuit Court. Piv txwv li, yog tias ib lub xaim muaj qhov ntsuas tam sim no ntawm 15 A, qhov loj ntawm lub fuse yuav tsum tsis pub tshaj qhov no.
Interrupt Rating:Qhov no yog qhov siab tshaj plaws tam sim no lub fuse tuaj yeem cuam tshuam yam tsis muaj kev tawg lossis arcing. Qhov kev ntsuam xyuas no qhia tau hais tias cov xwm txheej siab tam sim no lub fuse tuaj yeem cuam tshuam kev nyab xeeb, tseem ceeb heev rau kev tiv thaiv kev puas tsuaj loj thaum muaj kev cuam tshuam luv luv.
Fuses vs Circuit Breakers: Ib qho piv txwv
Fuses thiab Circuit Court breakers yog ob qho tib si saib xyuas ntawm Circuit Court, tiv thaiv nws los ntawm cov teeb meem xws li overload thiab luv circuits. Txawm hais tias lawv lub hom phiaj yog tib yam, lawv muaj qee qhov sib txawv ntawm lawv cov qauv kev ua haujlwm, yam ntxwv, thiab kev siv.
Fuses yog cov cuab yeej siv yooj yim thiab txhim khu kev qha uas tiv thaiv Circuit Court los ntawm cua sov thiab melting, yam ntxwv los ntawm cov lus teb ceev. Lawv yog cov kev lag luam thiab dav siv rau ntau yam kev siv hluav taws xob. Txawm li cas los xij, fuses yuav tsum tau hloov manually, tsis tuaj yeem kho qhov ntsuas tam sim no, thiab tsis muaj qhov qhia meej meej thaum melting, yuav tsum tau kuaj xyuas.
Circuit breakers, ntawm qhov tod tes, yog cov keyboards ntse uas tiv thaiv circuits los ntawm electromagnetic quab yuam thiab kev sib cuag. Lawv yog reusable, yuav manually los yog cia li pib dua, thiab tsis tas yuav tsum tau hloov. Circuit Court breakers feem ntau muaj kev ua txhaum cai, qhia seb puas muaj kev tiv thaiv overloaded. Tsis tas li ntawd, Circuit Court breakers tau kho qhov ntsuas tam sim no, hloov tau yooj yim dua, thiab hloov mus rau qhov sib txawv tam sim no xav tau.
Yog li, qhov twg yog qhov kev xaiv zoo dua, fuse lossis Circuit Court breaker? Cov lus teb nyob ntawm cov kev xav tau tshwj xeeb thiab kev nyab xeeb ntawm koj lub voj voog. Fuses yog qhov zoo tagnrho rau kev tiv thaiv hluav taws xob yooj yim thiab muaj kev lag luam, tab sis yuav tsum tau hloov phau ntawv thiab tshuaj xyuas. Circuit Court breakers, nrog rau lawv cov reusability, hloov tau yooj yim, thiab kev qhia txhaum, yog haum rau ntau yam tam sim no thiab daim ntawv thov scenarios.
Hauv kev xaus, txawm tias koj xaiv lub fuse lossis lub Circuit Court breaker, nkag siab txog lawv cov haujlwm, cov txiaj ntsig, thiab cov kev txwv tuaj yeem ua kom koj xaiv txoj cai rau koj qhov kev nyab xeeb thiab kev ua haujlwm.
