FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical engineering and can be used in makeups of symmetric communication cables within a shared network or structured cable systems. Disclosed is a cable comprising strands in film-polymer insulation, twisted into pairs with different strands of twisting in a common layer with an outer polymer shell, wherein insulation of each core is made in the form of microtubes and perforated microtubes of equal size throughout the entire section of each core, note here that after every microtubes there introduced is nano-kordel along the whole length of each conductor of symmetrical cable, and external film is in contact with microtubular insulation of each core along the entire cross-section of every conductor along the whole length of symmetrical cable.
EFFECT: technical result is reduction of relative dielectric permeability of cable strands insulation; as a result, attenuation coefficient decreases due to reduction of losses in insulation of conductors, capacitive and inductive components of influence between conductors.
1 cl, 2 dwg
