| 摘要 |
<p>PURPOSE:To reduce the arc generated when jumper wires are separated by providing switches going through a bypass circuit on the outside and inside of the jumper wire respectively. CONSTITUTION:The 1st bypass circuit 6 consisting of a bypass cable is connected to jumper wire 5 sections before and behind a working block 1a and to the 1st bypass circuit 6 the 2nd bypass circuit 7 consisting of a bypass cable is connected. The 1st bypass circuit 6 is connected to the outside section 6a and inside section 6b of the jumper wire 5, and through switch sections 8a and 8b of a circuit breaker 8 it is connected to the 2nd bypass circuit 7. When the jumper wire 5 is to be removed, it is done so after the switch sections 8a and 8b are closed to bypass load current. After that, the switch section 8b is opened, a transmission line 1 is separated and the work in this block is performed.</p> |
