| 摘要 |
<p>The invention relates to a casing for a change-over apparatus. According to the invention, the casing consists of two semi-casings (26 and 26a) for a change-over apparatus, such as, particularly, a line protection switch, with a guide route for the electric arc (30), provided with two guide rails (2a and 32) for the electric arc, which are connected to contact pieces (7 and 7'), between the end parts thereof there being a deionization chamber (34), which consists of a lamella pack (35) for blowing-out, to which there is adjoined a discharge chamber (36) provided with a discharge opening (37). At the inside of this discharge chamber (36), in the lower semi-casing (26), there are monolyth-like shaped walls (38a), which extend up to at most the average level (39) of the casing. The walls (38) shaped in the lower semi-casing (26a), planely seen, are made differently from the walls (38a) shaped at the upper semicasing (26a), and the walls ofthe lower semicasing (26) are, on some portions, shifted in relation to the walls (38a) at the upper semicasing (26a) and, on certain portions, they are located in line with the walls (38) at the upper casing (26a).</p> |
