FIELD: electricity.
SUBSTANCE: insert discharger comprises one or several overvoltage protection elements. Besides elements of overvoltage protection are located in structural unit with optical indication of fault, and also including heat current safety fuse (5), which comprises actuator device for actuation of remote signalling contact that serves to signalise faults. Structural unit comprises two chambers, besides the first one, lower chamber (1) includes capsulated spark gap or similar structure, and ends of lower chamber (1) are produced or limited by plug-in contact surfaces (3), which are electrically connected to spark gap (2). The second upper chamber (4) includes current safety fuse. Besides between lower and upper chamber there is a separation wall (6), which fixes wiring plate (7). Plug-in contact surfaces (3) comprises stabilising bend (8) and change into at least two terminals (9), lower edges of which include inlet slope (10), besides, terminals (9) of according ends pass parallel to each other.
EFFECT: increased compactness of design and increased stability of plug-in contacts to impact currents, reduced mechanical forces in process of installation and withdrawal of dischargers.
12 cl, 7 dwg
