VBs sab hauv tsev high-voltage nqus tsev Circuit Court breaker yog peb-theem sab hauv tsev khoom siv ntawm AC60Hz thiab ntsuas voltage ntawm 12 KV siv los tswj thiab tiv thaiv cov khoom siv hluav taws xob hauv kev lag luam thiab kev tsuas, cov chaw tsim hluav taws xob, cov chaw hloov pauv hluav taws xob.
Lub caij no, nws tuaj yeem siv rau qhov chaw uas xav tau kev ua haujlwm ntau zaus.