Cov khoom tseem ceeb ntawm cov khoom siv hluav taws xob muaj xws li kev tswj hwm thiab kev tiv thaiv cov khoom xws li cov hluav taws xob hluav taws xob, cov hluav taws xob sib txuas, thiab cov fuses. Circuit Court breakers yog cov hauv paus ntsiab lus; lawv muaj peev xwm cuam tshuam cov khoom siv hluav taws xob sai thaum lub sijhawm dhau los lossis luv luv, yog li tiv thaiv cov khoom siv thiab tag nrho cov txheej txheem. Disconnect keyboards feem ntau yog siv los cais lub zog thaum lub sijhawm tshuaj xyuas lossis kev saib xyuas cov cuab yeej, ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm. Fuses, lub sijhawm no, muab kev tiv thaiv overcurrent, tiv thaiv kev puas tsuaj los ntawm cov dej ntws ntau dhau.
Busbars, terminal blocks, thiab busbar txhawb nqa kuj tseem yog cov khoom siv tseem ceeb hauv cov khoom siv hluav taws xob. Busbars ua haujlwm sib sau ua ke thiab xa hluav taws xob hluav taws xob, thaum lub davhlau ya nyob twg thaiv kom ntseeg tau cov hluav taws xob sib txuas thoob plaws ntau lub voj voog. Busbar kev txhawb nqa muab cov qauv kev ruaj ntseg rau cov busbars - tuav ruaj ntseg clearances thiab txhua yam kev ncaj ncees - yog li ua kom cov cuab yeej nyob ruaj khov thiab txhim khu kev qha nyob rau hauv lub sij hawm ntev - kev ua haujlwm.
Tsis tas li ntawd, cov khoom siv hluav taws xob faib hluav taws xob muaj ntau yam khoom siv, suav nrog cov relays, ntsuas ntsuas, tswj cov nyees khawm, qhov taw qhia teeb, sensors, thiab cov ntse saib xyuas modules. Cov khoom siv no pab txhawb kev ntsuas thiab saib xyuas cov ntsuas tam sim no, qhov hluav taws xob, thiab lub zog hluav taws xob; muab lub tswb ceeb toom yuam kev; thiab pab kom muaj peev xwm tswj tau chaw taws teeb. Los ntawm kev txhim kho kev ua haujlwm kev nyab xeeb thiab kev tswj hwm kev ua haujlwm, cov khoom siv no ua rau lub zog faib hluav taws xob ntau dua, txhim khu kev qha, thiab ua haujlwm tau zoo.
