MANUFACTURING METHOD OF COMPOSITES CORES FOR HIGH-TEMPERATURE ALUMINIUM CONDUCTORS FOR OVERHEAD TRANSMISSION LINES Russian patent published in 2012 - IPC H01B5/08 

FIELD: electricity.

SUBSTANCE: manufacturing method of composite cores for wires of overhead transmission lines is distinguished by the fact that before wire bundle treatment by polymer heat-resistant binder wire bundle is sent to oven to remove moisture from reinforcing fibre. Thereafter wire bundle is treated by polymer heat-resistant binder, excess of binder is removed by wet bundle drawing through calibration hole and then core profile is shaped in the form of long rod. Core profile shaping is performed by spiral winding of heat-resistant thread to bundle of reinforcing fibre saturated with binder.

EFFECT: method allows provision of high-quality composite cores; production of high-temperature aluminium wires for overhead transmission lines on the basis of such cores having improved mechanical strength, flexibility, twisting; increase of operating temperature for overhead transmission lines; 2-3 times increase of capacity for overhead transmission lines, minimum sagging of transmission lines.

25 cl, 6 dwg, 2 tbl