Hauv lub tshuab faib hluav taws xob, cov cuab yeej hluav taws xob ua haujlwm ua cov khoom siv tseem ceeb los tiv thaiv kev nyab xeeb ntawm lub voj voog thiab tiv thaiv kev thauj khoom ntau dhau thiab luv luv. Kev sib koom tes ntawm lub cuab yeej hluav taws xob tseem ceeb thiab cov cuab yeej hluav taws xob ceg txiav txim siab ncaj qha rau kev ruaj khov ntawm lub tshuab faib hluav taws xob thiab kev ua haujlwm ntawm kev daws teeb meem. Tsab xov xwm no txhais luv luv lawv qhov chaw tseem ceeb thiab rhuav tshem lawv cov kev sib koom tes, pab cov kws kho mob thiab cov neeg yuav khoom nkag siab sai sai cov ntsiab lus tseem ceeb.
Kev piav qhia txog cov ntsiab lus tseem ceeb thiab qhov chaw ntawm ob qho no yog qhov tseem ceeb rau kev nkag siab txog kev sib koom tes logic:
1.Lub tshuab hluav taws xob tseem ceebLub tshuab hluav taws xob no, tseem hu ua lub tshuab hluav taws xob loj (main breaker), tau teeb tsa rau ntawm txoj kab hluav taws xob ntawm lub tshuab faib hluav taws xob. Nws tswj lub xeev qhib/kaw ntawm tag nrho lub voj voog faib hluav taws xob thiab ua lub luag haujlwm tiv thaiv tag nrho lub tshuab los ntawm kev ua haujlwm ntau dhau thiab kev ua txhaum luv luv, ua lub "rooj vag loj" ntawm lub tshuab faib hluav taws xob uas tuaj yeem txiav hluav taws xob rau tag nrho lub tshuab.
2.Lub branch circuit breakertau teeb tsa rau ntawm txhua txoj kab ceg, sib raug rau cov voj voog fais fab tshwj xeeb xws li teeb pom kev zoo, qhov (sockets) thiab cov khoom siv hluav taws xob. Nws tswj kev qhib/kaw ntawm ib ceg thiab tiv thaiv kev nyab xeeb ntawm lub zog ntawm ceg uas nws koom nrog, ua haujlwm ua "lub rooj vag ceg" ntawm lub kaw lus faib khoom.
Lub hauv paus ntawm lawv cov kev sib koom tes theem siab-qis yogkev tiv thaiv qib thiab kev xaiv tripping, uas tiv thaiv kev nthuav dav ntawm qhov txhaum.
●Thaum muaj teeb meem overload lossis luv luv hauv ib ceg, lub branch circuit breaker yuav ua haujlwm zoo li txiav lub zog ntawm ceg uas puas lawm raws sijhawm, thaum lub main circuit breaker tseem ua haujlwm li qub kom ntseeg tau tias lwm ceg tsis raug cuam tshuam thiab lub zog txuas ntxiv mus, ua tiav lub hom phiaj ntawm "tsuas yog ceg uas puas lawm thiaj li raug tua".
● Yog muaj qhov txhaum loj heev (xws li luv luv Circuit Court ntawm lub cev kab) uas tsis tuaj yeem tshem tawm los ntawm lub branch circuit breaker, lub circuit breaker tseem ceeb yuav qhib nws txoj haujlwm tiv thaiv los txiav tawm lub zog ntawm tag nrho cov kab ke faib khoom, tiv thaiv qhov txhaum kom tsis txhob kis mus rau tag nrho lub voj voog thiab ua rau muaj kev poob ntau dua.
Tsis tas li ntawd xwb, qhov kev sib koom tes logic yuav tsum ua tau raws li qhov xav tau ntawmcov yam ntxwv ua haujlwm sib xws: lub sijhawm tam sim no thiab lub sijhawm ua haujlwm ntawm lub tshuab hluav taws xob tseem ceeb yuav tsum ntau dua li cov ntawm cov ceg hluav taws xob, xyuas kom meej tias cov ceg hluav taws xob ua haujlwm ua ntej thiab lub tshuab hluav taws xob tseem ceeb ua haujlwm tiv thaiv thaub qab yog tias muaj qhov txhaum, zam qhov xwm txheej tsis tsim nyog uas lub tshuab hluav taws xob tseem ceeb mus ua ntej thiab txhua ceg poob hwj chim tib lub sijhawm.
Hauv ib lo lus, kev sib koom tes theem siab-qis tsis yog tsuas yog lav qhov kev nyab xeeb ntawm lub zog ntawm ib ceg xwb, tab sis kuj tseem tswj tau qhov ruaj khov ntawm tag nrho cov kab ke faib hluav taws xob, uas yog lub hauv paus ntsiab lus tseem ceeb hauv kev tsim thiab kev ua haujlwm ntawm cov kab ke faib khoom.
Lub sijhawm tshaj tawm: Lub Peb Hlis-07-2026
