| 摘要 |
PURPOSE:To make the inspection possible under the assembling state of a trouble searching device without breaking a section switch when the power distribution system is always operated, by connecting a testing equipment to a prescribed test terminal of the trouble searching device for successive selections through a cable with a connector. CONSTITUTION:The power source switching circuit part of a trouble searching device for successive selections is switched by an operation bandle to disconnect an operation discrimination element circuit part from the side of the distribution line, and a power for test is obtained from the side of this distribution line, and a switch SW10 or SW11 of an inspection switching circuit part is closed to give an inspection signal, which indicates that ''a one-side voltage exists'', to the operation discriminating element circuit part, and it is discriminated in a one-side power discriminating circuit 22 that the inspection signal indicates that ''a one-side voltage exists'', and it is discriminated on a basis of the output of the one-side power discriminating circuit 22 by a counting display part 26 and a function discriminating display part 27 whether the function is normal or not. By constituting a testing equipment which performs these operations, the inspection is possible under the assembling state without breaking the section switch. |
