DEVICE FOR DESIONIZING GASES, ESPECIALLY CUTTING GASES, IN AN ARC EXTINGUISHING CHAMBER OF A LOW VOLTAGE CIRCUIT BREAKER AND AN ARC EXTINGUISHING CHAMBER EQUIPPED WITH SAID DEVICE

摘要

The invention relates to a gas deionization device and an arc extinction chamber in particular for a molded-case multipole low-voltage circuit breaker equipped with this device. BR/ This device comprises a porous screen (E) comprising one or more superposed metal fabrics (T), each fabric (T) being formed by a crossing of straight threads (15) spaced apart and parallel to each other with closely joined corrugated threads (16) extending substantially perpendicular to said straight wires (15) and passing alternately above and below at least one of the successive straight wires (15). Advantageously, it comprises at least three superposed fabrics (T) having progressive mesh openings. / P