Cables of increased fire resistance armoured, not spreading combustion in group laying, with single-wire conductive conductors of copper soft wire with cross-section from 0,20 to 2,50 mm², paired (with the number of pairs from 1 to 10) or bundled (with the number of cores from 3 to 20) twisting, with insulation made of fire-resistant organosilicon rubber, with a sheath and protective hose made of PVC 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 wrapping 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 of alternating current frequency of 50 Hz.
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