Industrial heat-resisting fireproofing instrument cable and manufacturing technology thereof
An instrument cable, heat-resistant technology, applied in the field of wire and cable, can solve the problems affecting the electrical performance index of the cable, unstable fire resistance performance of the cable, not getting design requirements, etc., to improve the quality of electrical transmission, excellent electrical performance and mechanical properties. performance, to ensure the effect of quality quality
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[0037] See figure 2 The structural form of the industrial heat-resistant and fire-resistant instrument cable in this embodiment is characterized in that: the conductor 1 is twisted with multiple tinned copper wires, the conductor 1 is squeezed with a fireproof layer 2 and the fireproof layer 2 is squeezed Insulation layer 3 constitutes an insulated wire core, two insulated wire cores constitute a pair of twisted group 4, a polyester tape 5 is wrapped on the surface of the pair of twisted group 4, and a shielding layer 6 woven of tinned copper wire is provided on the surface of the polyester tape 5 A pair of twisted unit is formed; a plurality of twisted units are twisted to form the cable core 7; the outer surface of the cable core 7 is sequentially arranged with a polyester tape wrapping layer 8, a longitudinal drain wire 9, and a tinned copper wire braided overall shielding layer 10. Copper foil wrapping layer 11 and outer sheath layer 12 formed by extrusion; insulating laye...
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