Electric switchgear extinguishing chamber - has laminae with slits for discharge arc with edges bent outwards away from contacts

摘要

The extinguishing chamber is for electrical switch gear with fusing components, current and load busbars, extinguishing laminae etc. The components are electrically insulated from each other in the chamber, and each has a slit for arc. The extinguishing chamber can be fitted in installations where there is a small amount of space available. The two side edges (14) of the laminae (11) bordering on the discharge arc slits (12) are bent outwards in the direction of the contact (3) away from the plane of the extinguishing laminae. The edges form an angle of approximately 45 degrees with the plane of the extinguishing laminae. The width of the slit is uniform along its entire length.