Cov cuab yeej hluav taws xob hauv cov khoom siv hluav taws xob qis qis raug muab tso rau hauv lub rooj sib txuas lossis vaj huam sib luag uas muaj hlau, nrog rau lub cuab yeej hluav taws xob loj feem ntau nyob hauv nruab nrab rau kev sib npaug ntawm cov khoom siv, thiab cov cuab yeej hluav taws xob ib leeg tau teeb tsa ntsug thiab sib cais los tiv thaiv cov voj voog tshwj xeeb xws li teeb pom kev zoo lossis qhov hluav taws xob. Qhov chaw ntawm lub tes tuav ntawm lub cuab yeej hluav taws xob qhia txog nws lub xeev, nrog rau "saum toj" feem ntau txhais tau tias "rau" thiab "hauv qab" txhais tau tias "tawm," txawm hais tias qhov chaw hauv lub tsev feem ntau yog qhov chaw nruab nrab lossis qhov chaw siv tau yooj yim xws li lub tsev rau tsheb, qab nthab, lossis chav rau khoom siv.
Kev tso vaj huam sib luag thiab switchboard

Lub tshuab hluav taws xob tseem ceeb:
Hauv cov switchboards loj, lub tshuab hluav taws xob tseem ceeb yog muab tso rau hauv ib kem nruab nrab kom faib cov hluav taws xob sib npaug rau cov ceg ntawm ob sab, uas tuaj yeem txo qhov loj me ntawm cov busbars tseem ceeb.

Cov cuab yeej tawg ib leeg:
Hauv ib lub switchboard, cov breakers feem ntau raug teeb tsa ntsug hauv cov chav sib cais. Txhua lub breaker yog rau ib lub voj voog tshwj xeeb, xws li teeb pom kev zoo lossis cov qhov hluav taws xob.

Kev Nkag Tau:
Lub switchboard nws tus kheej feem ntau nyob rau hauv thaj chaw tsawg ntawm lub tsev, xws li lub tsev rau tsheb, qab nthab, lossis chav dej siv hluav taws xob.
Qhov chaw thiab lub xeev ntawm lub breaker

Qhib/Tawm:
Qhov chaw ntawm tus kov qhia txog lub xeev ntawm lub breaker. Feem ntau, thaum tus kov nyob rau hauv qhov chaw "sab saud", lub voj voog qhib. Thaum nws nyob rau hauv qhov chaw "down", lub voj voog kaw.

Tau tsoo:
Yog tias lub breaker tau tripped vim muaj qhov txhaum, tus kov yuav nyob rau hauv qhov chaw nruab nrab. Yuav kom rov pib dua, koj yuav tsum xub tsiv tus kov mus rau qhov chaw "off" (down) tag nrho ua ntej hloov nws rov qab mus rau "on" (up).