| 摘要 |
PROBLEM TO BE SOLVED: To cut off a DC electrical circuit between the main electrodes, at an early stage when there is a tracking phenomenon.SOLUTION: The DC plug socket device includes plug outlets 6a, 6b provided in a housing 14, and the main electrodes 12a, 12b arranged in the plug outlets, respectively. A sub electrode 16 is arranged on the housing 14 between the main electrodes 12a, 12b, and circuit means 13, 22, 24, 26 are provided for cutting off the DC electrical circuit 30 including a DC power supply 15 between the main electrodes 12a, 12b, when a leakage current flows onto the sub electrode 16. |
