LIGHT AND FLEXIBLE STRENGTHENING POWER CABLE AND METHOD OF ITS MANUFACTURING Russian patent published in 2017 - IPC H01B7/18 

FIELD: electricity.

SUBSTANCE: invention relates to impact-resistant multi-core power cable (10) for transmission or distribution of low, medium or high-voltage electric power comprising a plurality of cores (1), wherein each core comprising at least one conductive element (3) and an electrically insulating layer (5) in position radially outer with respect to at least one said conducting element (3). The cores (1) are twisted together to form an assembled element providing a plurality of intermediate zones (2). The foamed polymer filler (6) fills the intermediate zones (2) between the plurality of cores (1). The foamed impact layer (7) is in a position radially outer to the foamed polymer filler (6), and contains polymer which differs from the foamed polymer filler (6).

EFFECT: invention provides generation of flexible, lightweight, shock-resistant, fire-resistant and chemical-resistant cable.

15 cl, 3 tbl, 2 dwg