| 摘要 |
PROBLEM TO BE SOLVED: To suppress the change of a discharge current by vibration damping, and prevent generation of a strong radiation noise resulted from the discharge current by providing specified structure in a plug socket with earth electrode. SOLUTION: A plug socket with an earth electrode C is provided with one or more terminals capable of connecting an earth wire (earth terminal with damping resistance) 1-3, and a resistance element (damping resistance) 4 to be connected between a connecting terminal for earth electrode C and the terminals 1-3. A capacity element 5 is also provided in parallel to the resistance element 4 as occasion demands. Namely, it is supposed that a discharge path is formed including the terminals (earth terminals with damping resistance) 1-3, the resistance element (damping resistance) 4, and the connecting terminal for earth electrode C. Thus, a strong vibrated state of a discharge current waveform inputted through the terminal 1-3 to which the earth wire is connected is suppressed by the resistance element 4, and generation of a strong radiation noise is consequently prevented. |
