It is very important that ensures the integral explosion protection safety for the flameproof electrical apparatus by selecting reasonably the cable entry.
合理地选择隔爆型电气设备的电缆引入装置，对于保证隔爆型电气设备整体防爆安全十分重要。
2
The apparatus according to the invention has a selecting circuit, a reading circuit, and a transfer circuit.