| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device easily and surely identifying a wiring for search in laid route regardless of use or non-use in an electric wiring equipment in a plurality of branch circuits. <P>SOLUTION: The device comprises two terminal circuits 151 and 152 which excludes a current by power source, connecting cables 102, and 103 and 104 injected by wiring search signal at a branch point 131 sending a signal current to the wiring search signal and connected to the power source side to the wiring, a second filter connecting the cables 101, and 102 and 103 at the load end, excluding the current from the power source and connected to the load end of the wiring sending the signal current, a signal generator 141 outputting adjustment signal canceling a voltage generating in the wiring search signal and the two terminal circuits 151 and 152, combination elements 144 and 155 injecting the adjustment signal, a combination element 143 injecting the wiring search signal in the cable 101, and a signal detector 181 detecting the magnetic field of the signal current formed with the wiring search signal and the adjustment signal. <P>COPYRIGHT: (C)2003,JPO</p> |
