| 摘要 |
<p>The device has a protection switch, clamping tongs together with connection cables and display units. Ascertaining and control logic is provided for ascertaining the conformation of phase for each pair of the tongs and for ascertaining the availability of a voltage between each phase pair. Each of the clamping tongs is provided with a micro switch (M) for indicating the connection failure of the bridging device, where the micro switch is movable guided at an isolating cover plate (1w).</p> |
