| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wiring checker which, in spite of a simple structure, can easily inspect the presence or absence of failed wiring of a neutral electrode N and a ground wire electrode E in a receptacle with a grounding electrode or the like. <P>SOLUTION: The wiring checker includes three plug blades of a voltage side plug blade 11 to be connected to an active wire electrode L, a neutral electrode plug blade 21 to be connected to the neutral electrode N, and a ground wire plug blade 31 to be connected to the ground wire electrode E. When a volt meter 51 is connected between the neutral electrode plug blade 21 and the ground wire plug blade 31, a resistance circuit 40A composed of a variable resistive element 41 is connected between the voltage side plug blade 11 and the ground wire plug blade 31, respectively, and if a resistance value of the variable resistive element 41 is changed, it determines the wiring as normal when a value of the volt meter 51 is changed, and it determines the wiring as failed when the value of the volt meter 51 is not changed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
