Fire-Resistant Armored Data Transmission Cable for Reliable Communication

Cables armoured fire-resistant symmetrical pair twisting for data transmission, with single-wire copper conductive cores with cross-section from 0,20 to 2,50 mm², with thermal barrier of conductive cores in the form of winding of two mica-containing tapes, with the number of twisted pairs from 1 to 12 or two parallel-packed pairs, with insulation, sheath and protective hose made of polyvinyl chloride plasticate of reduced fire hazard with low smoke and gas emission and low toxicity of combustion products, with an additional thermal barrier in the form of a winding of mica-containing tape over the core, with a screen of laminated aluminium foil, with armour in the form of a braid of galvanized steel wires, designed for operation at voltages up to 300 V inclusive alternating current frequency of 50 Hz.