| 摘要 |
PURPOSE:To execute easily the test of an insulating performance of a multielectric conductor electric apparatus by providing many contacts to be fitted to many lead electric conductors on an adaptor, and switching and connecting this contact by a switching circuit. CONSTITUTION:Many contacts A, B, C and D are provided vertically on an adaptor so as to be positioned on the top of a triangle, respectively, and one end part shaped like a socket is fitted and inserted into the respective lead electric conductors of an electric apparatus to be tested, on one side face of a terminal board 11. Also, the other end part is connected so that each contact of a position of the triangle. A group combination switch 2 forms a train by combining each contact of two kinds each among each contact A-D of four kinds, and connects it to a tester terminal T1 of a high potential side or a ground terminal T2 of a testing device S such as a dielectric strength tester, an insulating resistance measuring instrument, etc. by a changeover switch 3.
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