FIELD: construction.
SUBSTANCE: invention relates to a system of an air contact network, including ceiling contact rails (1, 16), each of which in its central area by means of a fixed point is fixed on a building structure (14), and is also connected with a building structure (14) via movable arms (11) of anchoring points. It is provided that in at least one ceiling contact rail (1, 16) at its upper side there is a portal support (2), from which in points of connection there are two stretching clamping rails directed downwards (8), designed to fix a contact wire (9), and that the portal support (2) at both sides from the points of connection of clamping rails (8) is equipped by conically narrowing (3) moulded elements, which may be inserted into appropriate grooves (4) of clamping reinforcement (5).
EFFECT: improved design of a contact network.
11 cl, 6 dwg
