FIELD: electricity.
SUBSTANCE: invention relates to the field of electrical engineering and is to be utilised for design of symmetrical communication cables within a shared network or structured cable systems. Concept of the invention is as follows: the symmetrical four-pair cable consists of cores with membranous-and-porous film insulation twisted into pairs and into a general lay contained in an outer sheath of a polymer material; insulation of each core within the porous layer and the membranous layer contacting each core is perforated along the whole length within each layer at an independent pitch.
EFFECT: reduction of dielectric loss and capacitive component of intra-pair interference.
1 dwg
