| 摘要 |
PROBLEM TO BE SOLVED: To provide a power distribution system, capable of lowering a voltage to ground, and commonalizing the detection of a malfunction such as the leakage of electricity in an AC power feeding path and a DC power feeding path.SOLUTION: An AC-DC converter 21 is inserted between a single-phase three-wire system AC power feeding path (branched electric path Lb) for feeding an AC device 41 and a three-wire system DC power feeding path (main electric path Ld) for feeding a DC device. The DC power feeding path is provided with a neutral wire N which is connected and used in common with a neutral wire N in the AC power feeding path of the AC-DC converter 21, a positive voltage wire L+ having a positive electric potential with respect to the potential of the neutral wire N, and a negative voltage wire L- having a negative electric potential with respect to the potential of the neutral wire N. The positive voltage wire L+ is applied with +150 V, and the negative voltage wire L- is applied with -150 V. |
