Fire-resistant cables, not spreading combustion in group laying, with single-wire conductive cores of copper soft wire with cross-section from 0,20 to 2,50 mm², paired (with the number of pairs from 1 to 20) or bundled (with the number of cores from 3 to 20) twisting, with insulation made of fire-resistant organosilicon rubber, with additional thermal barrier in the form of wrapping with mica-containing tape, with a sheath made of halogen-free polymer composition, designed for operation at voltages up to 300 V inclusive of alternating current frequency of 50 Hz.
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