breakers ວົງຈອນໂດຍທົ່ວໄປແມ່ນປະກອບດ້ວຍລະບົບຕິດຕໍ່, ລະບົບ extinguishing arc, ກົນໄກການດໍາເນີນງານ, ການປ່ອຍ, enclosures, ແລະອື່ນໆ.
Electric energy meters can be divided into DC energy meters and AC energy meters based on the circuit they use. According to its phase line