| 摘要 |
<p>The device has a multi-polar main circuit breaker (22) and a direct current (DC)-voltage supply device (28), which are connectable with a supply network (6) at an alternating current (AC) voltage side using a cable guard. The DC voltage supply device is connected with two conductors (36, 38) of power supply cables (30), which are connected to output-terminals of the device, using a two-pole switch (34), when a main voltage supply is disconnected. The multi-polar circuit breaker and the two-pole switch are coupled with each other, at an operating side.</p> |
