CATENARY SUSPENSION FOR ELECTRIFIED TRANSPORT CONTACT SYSTEM Russian patent published in 1994 - IPC

FIELD: traction contact systems of electrified transport. SUBSTANCE: suspension suspended from support structures of contact system through insulators has two carrier cables 3 and 4, contact wire 5 connected with carrier cables by means of droppers 8, braces 6 which connect cables near points of suspension and flexible inserts - salient automatic tension regulators 7 installed between cables in horizontal plane in middle of span in optimum zone for compensation. Braces 6 can be made in form of rigid rods or in form of additional tension regulators (resilient members) but their length after installation should be greater than length of tension regulators 7. In places of suspension of system from support structures carrier cables 3 and 4 are brought together in common points. Provision of indicated members in suspension ensures stability of contact wire position within required limits at temperature variations owing to possibility of displacement of cables in crosswise direction relative to track axis. Suspension can be used for all types of electrified rail transport in climates with considerable temperature fluctuations and heavy wind loads. EFFECT: enhanced reliability. 2 cl, 4 dwg