COMPOSITE CONTACT WIRE Russian patent published in 2019 - IPC B60M1/13 

FIELD: electrical engineering.

SUBSTANCE: invention is related to the field of electric engineering, namely to contact wires for power supply of high-speed railway transport. Proposed design of the contact wire enables to achieve the required combination of high strength and high electroconductivity, increases its resistance to atmospheric action, and also significantly reduces mechanical and electroerosion wear. In order to solve the technical problem, the contact wire contains a corrosion- and wear-resistant copper-based alloy shell in its design, high-conductivity core of copper and/or copper-based alloy and reinforcing component made from copper-based nanostructure alloy with alloying components in form of niobium (Nb) and/or iron (Fe) fibers, reinforcing component is made of several rods, wherein rods from nanostructured alloy are arranged in high-conductivity core of copper and/or copper-based alloy, which is made in form of matrix frame.

EFFECT: low values of local dynamic temperature gradients formed in the cross-section of the contact wire at high speeds of motion of the electric stock and when transmitting electric power of high power, and therefore when large currents flow through the local contact zone, as well as reducing influence of these local gradients on operational reliability of wire.

8 cl, 1 dwg