| 摘要 |
An electric switchgear (100) comprising a casing having at least one compartment provided with a door, 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 movable inside the compartment between a connected position wherein each phase of the switching device is electrically connected to a corresponding electrical conductor (4) and a withdrawn position wherein each phase of the switching device is electrically separated from the corresponding electrical conductor (4), and an earthing switch (30)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 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from the corresponding electrical conductor (4) by the movement of the truck between the connected position and the withdrawn position. |
