| 摘要 |
<p>A system for warning regarding the presence of manually attached grounding contacts (21) on high voltage conductors (3), comprises: a) a naked additional conductor (1) close to the high voltage conductor (3), however spaced therefrom, and with an ability to be clamped resiliently to contact with the high voltage conductor (3) when the grounding contact (21) is attached; and b) a warning device (20) having connection means (4, 5) to the high voltage conductor (3) and to the additional conductor (1). The warning device has, in a part (24) arranged near the high voltage conductor (3), equipment for sensing whether the additional conductor (1) has been brought to contact with the high voltage conductor or not, and for transmitting a signal regarding this condition to another part (26) of the warning device which is remote from the high voltage conductor, preferably at ground potential. From this part (26) the signal can be transmitted to an operation central.</p> |
