SHORT-CIRCUITING DEVICE OF AN ELECTRICAL INSTALLATION AND SYSTEM FOR EXTINGUISHING AN ELECTRICAL ARC THAT MAY APPEAR IN SUCH AN INSTALLATION.

摘要

The invention relates to a device (30) for short-circuiting an electrical installation (10) that comprises at least two electrical conductors (12), which includes at least two connection terminals (42), each being capable of being connected to a respective electrical conductor, an electromechanical unit (44) capable of establishing a short-circuit between the connection terminals (42) and at least one resistive element (46) capable of connecting one of the connection terminals (42) to the corresponding electrical conductor. The or each resistive element (46) includes a first connection end (54) connected to the corresponding connection terminal (42) and a second connection end (56) capable of being connected to the corresponding electrical conductor. The resistive element (46) has an impedance, and the variation in the value of the impedance is less than 1 mΩ for a temperature of the resistive element of 0 °C to 200 °C.