EP 0306439 B1 19920715 - GAS BLAST ELECTICAL SWITCH
Title (en)
GAS BLAST ELECTICAL SWITCH
Publication
Application
Priority
DE 8711961 U 19870901
Abstract (en)
[origin: EP0306439A1] In an electrical pneumatic switch, particularly a high-voltage circuit breaker using SF6, the blast device consists of fixed blast piston (15) and a moving blast cylinder (5) of insulating material, whose cylinder base (6) is formed by a projection of the moving switching piece (4). Standardised cylinder head bolts (19) with an Allan key head are used for connecting the cylinder base (6) to the blast cylinder (5). These bolts are screwed into holes in the cylinder base (6). For precise positioning, an external countersink is provided which partially holds the cylinder head (24) of the bolt (19) with a fit. The part projecting further out passes through round openings in the blast cylinder (5) and thus fixes its position. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 33/91 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP)
H01H 33/91 (2013.01)
Designated contracting state (EPC)
CH DE FR IT LI SE
DOCDB simple family (publication)
EP 0306439 A1 19890308; EP 0306439 B1 19920715; DE 3872802 D1 19920820; DE 8711961 U1 19881229
DOCDB simple family (application)
EP 88730185 A 19880817; DE 3872802 T 19880817; DE 8711961 U 19870901