Rwb thaiv tsev nyob rau hauv cov xov hlau yog cov txheej txheem siv los tiv thaiv qhov ntws ntawm electrons ntawm cov conductors.Nws yog ua tiav los ntawm kev npog cov hlau nrog cov khoom siv hluav taws xob tsawg, xws li roj hmab, yas, lossis hlau.Qhov no tiv thaiv hluav taws xob los ntawm cov rwb thaiv tsev thiab mus txog qhov chaw sab nraud.Rwb thaiv tsev kuj tiv thaiv cov hlau los ntawm lub cev puas tsuaj thiab corrosion.Cov txheej txheem ntawm insulating xov hlau yog ua kom muaj kev nyab xeeb thiab muaj txiaj ntsig ntawm kev xa hluav taws xob.