| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus for limiting an interphase current and a leakage current of flooded electrical installations.SOLUTION: By filling an insulation barrel 24 between a phase wire portion 22 and a barrel-shaped wire 26 so as to lengthen a passage length between the phase wire and a neutral wire, or by properly adjusting the area of the phase wire, which is a part where a coating of the phase wire is stripped, the resistance is increased to the maximum to limit the interphase current. In an electric load, an ON-state current flows through an inner neutral line 34, and the leakage current flowing out of a housing ground 28 flows into the earth through a ground wire.</p> |
