Cables of increased fire resistance for fire alarm system of twisted pair, with one pair of conductive copper cores with nominal cross-section 0,20 mm2, insulated with fire-resistant organosilicon rubber, with additional thermal barrier in the form of winding from mica-containing tape, with outer sheath of polymer composition, halogen-free, designed for operation at voltage up to 300 V inclusive, alternating current frequency 50 Hz.
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