Lub rooj sib faib khoom yog ib feem ntawm lub tshuab hluav taws xob uas siv hluav taws xob los ntawm qhov chaw tseem ceeb thiab pub nws los ntawm ib lossis ntau lub voj voog kom xa hluav taws xob thoob plaws hauv ib lub chaw.Qhov no feem ntau hu ua hluav taws xob vaj huam sib luag, panelboard, lossis txawm tias lub thawv fuse.Yuav luag txhua lub tsev thiab cov lag luam yuav muaj tsawg kawg yog ib lub rooj sib faib khoom tsim hauv, uas yog nyob rau hauv qhov chaw ntawm cov kab hluav taws xob tseem ceeb nkag mus rau hauv cov qauv.Qhov luaj li cas ntawm lub rooj tsavxwm yuav nyob ntawm seb qhov hluav taws xob los ntawm qhov ntau npaum li cas thiab ntau npaum li cas yuav tsum tau nruab.
Cov pawg faib khoom tso cai rau tag nrho koj cov khoom siv hluav taws xob ua haujlwm kom nyab xeeb thoob plaws hauv cheeb tsam.Piv txwv li, koj muaj peev xwm nruab ib lub me me 15-amp Circuit Court breaker rau hauv lub rooj tsav xwm faib khoom los muab ib cheeb tsam ntawm qhov chaw nrog lub hwj chim uas nws xav tau.Qhov no tsuas yog tso cai rau txog li 15 amps ntawm hluav taws xob dhau los ntawm cov kab hluav taws xob tseem ceeb mus rau thaj chaw uas nws siv, uas txhais tau hais tias thaj chaw ntawd tuaj yeem muab kev pabcuam nrog cov xaim me me thiab tsis tshua muaj nqi.Nws kuj tseem yuav tiv thaiv kev nce siab (ntau dua 15 amps) los ntawm kev nkag mus rau cov khoom siv thiab ua rau muaj kev puas tsuaj.
Rau cov cheeb tsam uas xav tau hluav taws xob ntau, koj yuav nruab cov hluav taws xob hluav taws xob uas tso cai rau hluav taws xob ntau dua.Muaj peev xwm nqa tau ib lub hauv paus loj uas muab 100 lossis ntau dua amps ntawm lub zog thiab faib nws thoob plaws hauv lub chaw raws li lub zog xav tau ntau npaum li cas hauv ib qho chaw tsis yog nyob deb dua li tsuas yog muaj kev nkag mus rau tag nrho amperage txhua lub sijhawm. , tab sis nws kuj yog ntau yooj yim dua.Yog hais tias, piv txwv li, muaj ib tug surge nyob rau hauv ib cheeb tsam, nws tsuas yog mus txawv tebchaws lub breaker ntawm lub board faib rau ib tug Circuit Court.Qhov no tiv thaiv hluav taws xob tawm mus rau lwm qhov chaw hauv tsev lossis kev lag luam.
Peb lub rooj tsav xwm faib khoom nruab nrog ntau yam khoom siv hluav taws xob rau kev ua haujlwm ntawm hluav taws xob faib hluav taws xob, kev tswj hwm (luv luv Circuit Court, overload, lub ntiaj teb to, dhau-voltage) kev tiv thaiv, teeb liab, ntsuas ntawm cov khoom siv hluav taws xob.