Multilayer protective low-smoke zero-halogen flame retardant fireproof control cable and manufacture method thereof
A flame-retardant, fire-resistant, control cable technology, applied in cable/conductor manufacturing, insulated cables, cables, etc., can solve the problems of not meeting the use requirements of multi-layer protection, waterproof and termite prevention, poor resistance to mechanical external force, and short service life. , to achieve good resistance to environmental stress cracking, good mechanical properties, and improved service life.
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[0015] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.
[0016] A multi-layer protective low-smoke, halogen-free, flame-retardant and fire-resistant control cable, including a copper conductor 1, a fire-resistant mica layer 2 and a cross-linked polyethylene insulating layer 3 are arranged on the outside of the copper conductor to form a wire core, and several wire cores form a cable. The cable is provided with polyester film tape 4, metal shielding layer 5, inner sheath I6, inner sheath II7, inner sheath III8, metal armor 9 and outer sheath 10; The fire-resistant mica layer is covered with a calcined mica tape, which can withstand the fire resistance test of 800 ° C; the fire-resistant mica tape is extruded with a 105 ° C irradiated cross-linked polyethylene insulating layer, which improves the temperature resistance level of the cable and makes the resistance required by the standard The temperature ...
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