[태그:] PEL

PEN Conductoe for Both Protective Earthing Conductor and Neutral Conductor, 보호도체와 중성선을 겸한 도체 PEM Conductoe for Both Protective Earthing Conductor and Mud-point Conductor, 보호도체와 중간선 기능을 겸한 도체 PEL Conductoe for Both Protective Earthing Conductor and Line Conductor, 보호도체와 전압선을 겸한 도체