Fuse daim ntawv pov thawj cov qauv thiab cov lus qhia xaiv
Tsis ntev los no, ib tug phooj ywg nug txog cov qauv ntawv pov thawj fuse thiab yuav xaiv lawv li cas? Shenzhen Del Tuam Txhab yog lub chaw soj nstuam pov thawj rau UL248 fuses thiab lub chaw kuaj pom zoo rau TUV cov pov thawj. Lawv paub txog cov qauv ntawv pov thawj thiab cov txheej txheem kuaj rau fuses. Tom ntej no, kuv yuav qhia txog cov qauv ntawv pov thawj tseem ceeb thiab kev xaiv rau fuses.
1. Lub ntsiab lus ntawm fuse
Fuse yog hais txog cov khoom siv hluav taws xob uas fuses lub fuse los ntawm tus kheej - cua sov thaum tam sim no nyob rau hauv Circuit Court tshaj ib tug nqi thiab disconnects lub Circuit Court tiv thaiv Circuit Court. Nws yog dav siv nyob rau hauv siab thiab tsis tshua muaj hluav taws xob hluav taws xob faib tshuab, tswj cov tshuab thiab cov khoom siv hluav taws xob, thiab yog ib qho ntawm cov khoom siv tiv thaiv feem ntau.
Kev tiv thaiv Circuit Court muaj nuj nqi ntawm lub fuse yog hais txog kev tiv thaiv ntawm cov xov hlau thiab cov khoom siv hluav taws xob. Kev tiv thaiv ntawm cov xov hlau yog tiv thaiv cov xov hlau los ntawm kev ntes hluav taws. Rau cov khoom siv hluav taws xob, nws yog kev tiv thaiv overload kom tsis txhob hlawv cov khoom siv hluav taws xob. Yog li ntawd, thaum tsim hluav taws xob systems, tag nrho cov kev txiav txim siab yuav tsum tau muab rau lub hwj chim ntawm cov khoom siv hluav taws xob, qhov system txuam cov teeb meem ntawm cov xov hlau thiab fuses.
Daim duab 1: Basic qauv ntawm lub fuse
Qhov thib ob, cov qauv ntawv pov thawj tseem ceeb rau fuses
Rau cov txheej txheem fuse, nws feem ntau muab faib ua IEC cov qauv, UL cov qauv thiab ISO qauv. Ntawm lawv, Tuam Tshoj GB, German DIN thiab British BS pib txais cov qauv IEC. IEC cov qauv feem ntau suav nrog IEC 60127, IEC 60269, thiab lwm yam, UL feem ntau suav nrog UL248, thiab ISO feem ntau suav nrog ISO 8820 series.
Daim duab 2: Fuses ntawm cov qauv sib txawv
Rau Tuam Tshoj GB, tam sim no muaj 37 lub teb chaws tus qauv rau fuses uas tam sim no los yog yuav raug siv, thiab muaj cov qauv kev lag luam sib raug rau cov qib voltage sib txawv los yog kev lag luam. Cov qauv rau kev tsheb thauj neeg feem ntau xa mus rau GB31465 series ntawm ISO 8820.
Thib peb, lub ntsiab lus qhia ntawm lub fuse
Rated voltage: Qhov ntsuas hluav taws xob ntawm lub fuse yuav tsum siab dua qhov nominal voltage ntawm cov hluav taws xob siv hluav taws xob kom hloov mus rau qhov muaj peev xwm overvoltage. Nyob rau hauv cov ntaub ntawv ntawm overvoltage, lub fuse yuav tawg thiab lwm yam xwm txheej txaus ntshai.
Rated tam sim no thiab tsis tu ncua ua hauj lwm tam sim no: Cov ntsuas tam sim no yog siv los qhia qhov tshwj xeeb ntawm fuse. Kev ua haujlwm tsis tu ncua yog hais txog qhov siab tshaj plaws tam sim no uas tsis tu ncua dhau los ntawm Circuit Court ntawm qhov kub siab tshaj ambient. Kev ua haujlwm tsis tu ncua yuav tsum tsawg dua li qhov ntsuas tam sim no.
Kev sib txuas tsis kam: Qhov kev sib txuas loj dua yuav ua rau qhov kub ntawm lub fuse tiv tauj taw tes kom nce, thiab kev khiav hauj lwm tam sim no yuav txo qis raws li. Nyob rau hauv qhov tseeb engineering, lub fuse, sheath thiab connector teev los ntawm OEM yuav tsum tau kuaj, thiab tom qab lub thermal tshuav nyiaj li cas mus txog, yuav tsum tsis txhob ntau tshaj qhov teev.
Ambient kub: Cov yam ntxwv nkhaus ntawm lub fuse yog ze ze rau qhov kub thiab txias. Tshaj qhov kub ntawm qhov kev siv ntawm nws yuav ua rau lub internal kuj ntawm lub fuse yuav nce, uas yuav ua rau kom nws qhov kub thiab txias, yog li ntawd lub fuse yuav derated, yog li thaum xaiv ib tug fuse, lub ambient kub yuav tsum tau txiav txim siab thiab cov coj derating yam yuav tsum tau saws.
Sijhawm- cov yam ntxwv tam sim no: Hauv kev tshuaj ntsuam zaum kawg, lub fuse yog kev tiv thaiv tam sim no. Lub Circuit Court raug txiav tawm ua ntej xaim hluav taws kub. Yog li ntawd, lub fuse yuav tsum tau tshuab ua ntej lub siab tshaj plaws kev khiav hauj lwm kub Tmax ntawm cov hlau tshaj, thiaj li yuav ua kom muaj kev ruaj ntseg ntawm lub system.
Selectivity: Lub fuse yuav tsum tau tsim hierarchically. Thaum lub sij hawm tsim cov txheej txheem, nws yuav tsum tau xyuas kom meej tias lub hauv qab fuse yog tshuab ua ntej, thiab lub siab - theem fuse yog cua tshuab los yog tsis tshuab, thiaj li yuav xyuas kom meej tias ib tug - Circuit Court tsis ua hauj lwm yuav tsis cuam tshuam rau ib txwm ua hauj lwm ntawm hluav taws xob system ntawm lub siab dua - theem system .
Lub surge resistance yam ntxwv ntawm lub fuse: Circuit Court ntawm tag nrho lub tsheb system yog complex thiab hloov tau. Nyob rau hauv tus txheej txheem ntawm kev xaiv lub fuse, tsis yog tsuas yog lub nruam ua hauj lwm tam sim no thiab cov rated tam sim no yuav tsum tau txiav txim siab, tab sis kuj cov surge yam ntxwv ntawm cov khoom siv hluav taws xob los xyuas kom meej tias nws muaj peev xwm tiv taus lub surge. Tsis fuse.
Plaub, cov txheej txheem xaiv ntawm lub fuse
Nyob rau hauv txoj kev loj hlob ntawm cov tsheb, raws li qhov kev xaiv ntawm fuses muaj kev txhawj xeeb, ntxiv rau qhov voltage thiab tam sim no, ib puag ncig yam xws li kub kub, qhov cua qhov cua, qhov siab ntawm qhov siab, thiab cov kev cuam tshuam cuam tshuam ntawm cov tshuab hluav taws xob yuav tsum raug txiav txim siab. Cov qauv kev suav hauv qab no yog txoj kev xaiv uas muab los ntawm lub chaw tsim khoom zoo - paub fuse, uas yog qhov tseem ceeb suav nrog cov xwm txheej kho. Qhov tseeb, thaum xaiv cov fuse uas cuam tshuam, tus neeg muag khoom tseem ceeb yuav ua cov lus pom zoo sib xws kom zoo dua muab kev ua si tag nrho rau nws cov yam ntxwv ntawm cov khoom.
Fuse xaiv txoj kev
Lub tshuab hluav taws xob yooj yim suav nrog lub fuse, txuas cov xov hlau thiab cov khoom siv hluav taws xob. Lub luag haujlwm tseem ceeb ntawm lub fuse yog los tiv thaiv cov hlau los ntawm overheating. Lub fuse yuav tsum tau tshuab ua ntej cov hlau puas thermally. Yog li ntawd, thaum xaiv lub fuse, qhov sib txuas ntawm lwm cov xov hlau txuas kuj yuav tsum tau xaiv thiab xyuas kom raug.
