| 摘要 |
The invention concerns electric transport, in particular multilayer contact wires of overhead electric transport power line of transport facilities. A contact wire contains connected together throughout their entire length the upper current-conducting part, which is made from corrosion-resistant aluminum alloy and has a gripping head, and a housing, which are connected together with neck, and also lower contact part, which is made from wear-resistant aluminum alloy. The reinforcing element is made in the form of a steel wire located inside the contact wire in vertical plane of symmetry. The housing of the upper current-conducting part in the cross section is trapezoidal and its lower basis is flat. The external contact surface of lower contact part is convex and is formed by two symmetrical inclined planes located at sharp angle to the plane being perpendicular to the vertical plane of symmetry. Due to improvement of arranging and geometric parameters of the component parts of contact wire the increase of service life is ensured. |
