Lub fuse ua los ntawm cov khoom siv dab tsi?
Aug 02, 2023
Lub fuse tseem hu ua fuse, uas txhais tau tias yog "fuse txuas" los ntawm cov qauv thoob ntiaj teb. Nws yog ib qho khoom siv hluav taws xob uas tau nruab rau hauv ib lub voj voog kom muaj kev nyab xeeb ntawm lub voj voog. Niaj hnub no, raws li cov khoom ua me me thiab sib xyaw ua ke, cov duab thiab qhov loj ntawm fuses kuj txawv ntawm cov fuses ib txwm muaj. Piv txwv li, fuses rau cov xov tooj ntawm tes yuav tsum ua raws li cov qauv ntawm kev them nyiaj ceev thiab yuav tsum tiv taus tam sim no loj. Txhawm rau ua tiav nws txoj haujlwm tiv thaiv, qhov yuav tsum tau ua rau fuses tau nce siab dua. Yog li dab tsi cov khoom yog lub fuse ua los ntawm? Nws puas tuaj yeem hloov tau los ntawm tooj liab hlau? Cia wb mus saib ua ke:
1. Cov khoom siv ntau lawm
Lub fuse yuav tsum yog cov hlau hlau uas yooj yim rau yaj kom nws tuaj yeem raug tshuab thaum lub sijhawm tam sim no loj, thiaj li ua lub luag haujlwm tiv thaiv, cov hlau lead-antimony alloy hlau feem ntau yog siv. Cov khoom siv fuse feem ntau yog ua los ntawm cov ntsiab lus melting tsawg xws li aluminium antimony alloy. Lub ntsiab tseem ceeb ntawm aluminium-magnesium alloy aluminium phaj yog txhuas, thiab ib qho me me ntawm magnesium los yog lwm yam ntaub ntawv hlau ntxiv los ntxiv dag zog rau nws hardness. Aluminium alloy nrog Mg yog lub ntsiab additive tseem hu ua anti-xeb txhuas alloy vim nws zoo corrosion kuj.
Vim nws yog hlau nws tus kheej, nws thermal conductivity thiab lub zog yog tshwj xeeb tshaj yog zoo heev. Aluminium-magnesium alloy aluminium phaj yog lub teeb nyob rau hauv qhov hnyav, tsis tshua muaj ntom, zoo nyob rau hauv tshav kub dissipation, thiab muaj zog nyob rau hauv compression tsis kam, uas muaj peev xwm ua tau raws li qhov yuav tsum tau ntawm 3C cov khoom rau siab integration, lightness, miniaturization, cuam tshuam, electromagnetic shielding, thiab kub dissipation. Nws yog ob peb zaug nruj dua li cov yas yas, tsis tau tsuas yog ib feem peb ntawm qhov hnyav.
2. Cov hlau tooj liab puas siv tau?
Feem ntau hais lus, nws tsis tuaj yeem ua tau, vim tias qhov kev tiv thaiv ntawm tooj liab hlau yog me me, yog li lub zog sab hauv tsim tawm thaum tam sim no hla me me, thiab qhov melting point ntawm tooj liab kuj siab. Yog tsis muaj kev ua haujlwm ntawm kev tiv thaiv Circuit Court, nws yooj yim ua rau lub fuse tshuab.
Nws tuaj yeem siv los ua kev kub ntxhov ib ntus. Ib qho piv txwv tseem ceeb yog tias koj yuav tsum tau them sai sai rau qhov tso cai tam sim no ntawm lub voj voog, qhov tso cai tam sim no ntawm cov hlau tooj liab, thiab cov fuse tam sim no. Tab sis nws yuav tsum tsis txhob siv lub sijhawm ntev, txwv tsis pub, yuav muaj kev nyab xeeb kev nyab xeeb ntawm overload, uas yuav yooj yim ua rau hluav taws xob luv luv. Qhov laj thawj yog vim li cas fuses siv cov hlau uas muaj cov ntsiab lus melting tsawg xws li txhuas thiab cov tin yog tias lawv tuaj yeem tiv thaiv cov khoom siv hluav taws xob thiab hluav taws xob hluav taws xob. Thaum lub load tam sim no loj heev, lub voj voog yuav raug puas tsuaj. Txawm li cas los xij, yog tias siv cov hlau lead-tin fuse, nws cov ntsiab lus melting tsawg, thiab thaum tam sim no loj heev, nws yuav raug tshuab los tiv thaiv cov khoom siv hluav taws xob. Lub melting point ntawm tooj liab hlau yog ntau dua li cov hlau lead thiab tin, thiab nws yuav tsis fuse thaum tam sim no loj, uas yuav ua rau cov khoom siv hluav taws xob puas. Yog tias koj nrhiav tsis tau ib ntus, koj tuaj yeem siv tooj liab los hloov nws ib ntus, tab sis koj yuav tsum hloov nws sai li sai tau tom qab koj pom nws.
Yog li ntawd, nyob rau hauv cov kev cai ntawm kev ruaj ntseg hluav taws xob, nws yog txwv tsis pub siv tooj liab hlau, hlau hlau, thiab txhuas hlau es tsis txhob fuses. Vim hais tias cov hluav taws xob zoo tib yam, lossis qee cov neeg tsis to taub, qhov muag tsis pom kev txuas cov tub ntxhais lossis cov hlau hlau ntawm cov xov hlau zoo tib yam rau cov riam hloov thiab siv nws. Thaum lub Circuit Court yog overloaded, lub riam hloov pauv poob nws cov kev tuav pov hwm kev ua haujlwm, ua rau cov kab hluav taws kub. Nws tsis yog qhov tsis yooj yim rau lub ammeter hlawv tawm thiab ua rau muaj xwm txheej loj; yog hais tias muaj ib tug luv luv Circuit Court, nws yog heev txaus ntshai. Thaum lub tshuab hluav taws xob qhib, lub arc yuav hlawv tus neeg teb xov tooj thiab txawm ua rau muaj kev sib tsoo tuag. Yog li, tam sim no cov kev cai ntawm kev nyab xeeb hluav taws xob tseem muaj: Txawm li cas los xij Nws tsis raug tso cai siv tooj liab thiab hlau hlau tsis siv fuse.
3. Ceev faj
(1) Tsis txhob siv lub fuse uas nyias dhau. Yog tias lub fuse nyias nyias, qhov qub tam sim no dhau los ntawm nws yuav yooj yim tshuab tawm, ua rau lub zog tsis tsim nyog;
(2) Lub fuse tsim nyog yuav tsum tau xaiv thiab siv. Lub fuse tam sim no ntawm fuse feem ntau yog 1.5 ~ 2.0 npaug ntawm qhov ntsuas tam sim no. Piv txwv li, yog tias tag nrho lub zog ntawm tag nrho cov khoom siv hluav taws xob ntau tshaj 1100 watts hauv kev siv hauv tsev ib txwm siv, xaiv lub fuse ntawm 5-amp, thiab siv fuse No. 20 nrog txoj kab uas hla ntawm 0.98 mm. Thaum tam sim no tshaj 7.5 amps rau 10 amps, lub fuse yuav tshuab tsis siv neeg fusing kom ua tiav lub hom phiaj ntawm kev tiv thaiv;
(3) Yog tias qhov kev xaiv thiab siv fuse ua tau raws li qhov tshwj xeeb thiab cov fuse feem ntau yog cua tshuab, nws txhais tau hais tias muaj teeb meem nrog cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, thiab tus kws tshaj lij hluav taws xob yuav tsum tau nug kom paub qhov ua rau thiab tshem tawm cov kev phom sij zais cia. hauv lub sijhawm. Tsis txhob hloov cov fuse tuab ntawm yuav tsuas hloov nws nrog tooj liab hlau lossis hlau hlau.
(4) Thaum txhim kho lub fuse ntawm lub hwj chim hloov (switch), nws tsis raug tso cai ua haujlwm nrog lub hwj chim. Lub hwj chim hloov yuav tsum tau rub sib nrug los txiav lub hwj chim; tig lub fuse clockwise nyob ib ncig ntawm lub fastening ntsia hlau rau ib lub lis piam, thiab zawm cov ntsia hlau nrog ib tug gasket kom txog rau thaum tsis txhob zawm lub fuse kom nruj heev kom txog thaum nws nruj nreem; Tsis tas li ntawd, lub fuse yuav tsum tsis txhob rub nruj heev ntawm lwm cov fastening screws, thiab yuav tsum muaj ib lub npoo los tiv thaiv lub fuse los ntawm kev raug mob. Feem ntau, qhov hloov hluav taws xob thiab lub fuse tsis tuaj yeem raug, thiab lub npog bakelite yuav tsum tau them kom muaj kev nyab xeeb;
(5) fuse tshuab siv txhua hnub: thawj rooj plaub yog qhov nruab nrab yog qhov tawg tab sis ob sab tsis zoo, qhov kev thauj khoom ntau dhau ua rau lub fuse tawg lossis lub fuse puas lawm, thiab cov ntsiab lus melting yog qis, tab sis tam sim no yog. tsis loj heev. Qhov thib ob qhov teeb meem yog tias lub fuse yog melted kiag li thaum lub fuse raug tshuab, thiab muaj cov cim hlawv thiab dub thiab dawb grey nyob ib ncig ntawm lub fastening ntsia hlau. Qhov no yog tshwm sim los ntawm ib qho luv luv Circuit Court ntawm lub hwj huam mov, thiab qhov luv luv tam sim no loj heev. Qhov muag tsis pom kev txhim kho lub thicker fuse yam tsis paub qhov laj thawj. Txhawm rau tiv thaiv cov khoom siv hluav taws xob puas tsuaj thiab ua rau hluav taws kub.
