| 摘要 |
<p>ELECTRIC SWITCHGEAR (100) COMPRISING A CASING (1) HAVING AT LEAST ONE COMPARTMENT (2) PROVIDED WITH A DOOR (3), A PLURALITY OF ELECTRICAL CONDUCTORS (4) SUITABLE TO BE CONNECTED TO A LOAD, A MULTI-PHASE SWITCHING DEVICE (10) WHICH IS MOUNTED ON A TRUCK (20) MOVABLE INSIDE THE COMPARTMENT (2) BETWEEN A CONNECTED POSITION WHEREIN EACH PHASE OF THE SWITCHING DEVICE (10) IS ELECTRICALLY CONNECTED TO A CORRESPONDING ELECTRICAL CONDUCTOR (4) AND A WITHDRAWN POSITION WHEREIN EACH PHASE OF THE SWITCHING DEVICE (10) IS ELECTRICALLY SEPARATED FROM THE CORRESPONDING ELECTRICAL CONDUCTOR (4), AND AN EARTHING SWITCH (30) COMPRISING A PLURALITY OF CONTACTS (35) FOR CONNECTING TO EARTH THE PLURALITY OF ELECTRICAL CONDUCTORS (4). THE EARTHING SWITCH (30) IS ACTUATED TO MOVE BETWEEN A FIRST POSITION WHEREIN EACH CONTACT (35) IS ELECTRICALLY CONNECTED TO A CORRESPONDING ELECTRICAL CONDUCTOR (4) AND A SECOND POSITION WHEREIN EACH CONTACT (35) IS ELECTRICALLY SEPARATED FROM THE CORRESPONDING ELECTRICAL CONDUCTOR (4) BY THE MOVEMENT OF THE TRUCK (20) BETWEEN SAID CONNECTED POSITION AND THE WITHDRAWN POSITION.</p> |
