FIELD: electrical engineering.
SUBSTANCE: invention relates to the field of electrical engineering, namely to structures of power cables intended for use in fast-deployed high-voltage networks. Power cable contains copper single-wire current-conducting core with cross-section of 2.5 mm2, having copper microstructure with unidirectional arrangement of its grains, obtained by thermoplastic deformation by drawing at temperature in tool at contact point 200–250 °C with the use of a cooling-lubricating fluid for the workpiece and tools, with subsequent heat treatment per pass at a floating temperature of about 350 °C with simultaneous effect of electric current having voltage of 12–24 V and current intensity of 2,500–3,500 amperes. A silanol-cross-linked composition based on an electrically insulating material with the addition of a water cross-linking catalyst is deposited on top of the copper single-wire current-conducting core, on top of which there is a copper foil screen.
EFFECT: increase of transmitted voltage power along current-conducting core of wire of smaller cross-section due to increase of voltage of transmitted electric current, reduction of time of installation and laying of cable for fast-erected electric networks (FEN).
3 cl, 2 dwg
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Authors
Dates
2024-08-12—Published
2024-02-16—Filed