（l）防止高频电磁波和高频脉冲信号的相互干扰。线切割机床和电火花机床在逻辑电平、噪声容限、脉冲信号的强度和波形参数、脉冲电源功率和加工方式等方面有很大不同。由此造成的干扰足以导致同一房间的两种机床的数控系统产生随机性失控，从而影响机床的正常工作。（2）防止 (L) To prevent the high-frequency electromagnetic wave and high-frequency pulse signal mutual interference. Wire EDM and EDM in the logic level, the noise margin, the pulse signal strength and waveform parameters, pulse power and processing methods are very different. The resulting disturbance is sufficient to cause randomness out of control of the CNC system of the two machine tools in the same room, thus affecting the normal operation of the machine tool. (2) to prevent