Multilayer protective low-smoke zero-halogen flame retardant fireproof control cable and manufacture method thereof

Abstract

The invention relates to a multilayer protective low-smoke zero-halogen flame retardant fireproof control cable and a manufacture method thereof and belongs to the technical field of control cable manufacture. The technical scheme is that a fireproof mica layer (2) and a crosslinked polyethylene insulating layer (3) are sequentially arranged outside a copper conductor (1), and a polyester film wrapping belt (4), a metal shielding layer (5), an inner protective layer I (6), an inner protective layer II (7), an inner protective layer III (8), a metal armor layer (9) and an outer protective layer (10) are sequentially arranged outside the cable. The method adopts an aluminum belt embossing and double layer coextrusion mode, improves working efficiency and improves the quality of longitudinal wrapped aluminum tapes and extruded nylon. The cable adopts the 105 DEG C irradiation crosslinked polyethylene insulating layer, the temperature resisting level of the cable is improved, the mechanical performance of the cable is good, the tangent value of dielectric constant and dielectric loss angle is small, and the insulating electrical performance is excellent. Water or moist can be effectively prevented from entering the cable by adopting the embossing longitudinal wrapped aluminum tapes, simultaneously the cable has good shielding effect, the bending performance of the cable is ensured, and installation and using of the cable are facilitated.

Description

technical field [0001] The invention relates to a multi-layer protective low-smoke, halogen-free, flame-retardant and fire-resistant control cable and a manufacturing method thereof, in particular to a multi-layer protective low-smoke, halogen-free, flame-retardant and fire-resistant control cable, in particular to a fire-resistant, fire-resistant, waterproof, rodent-proof, termite-proof, signal-interference-resistant, mechanical-external-force-resistant, etc. The invention relates to a control cable required for layer protection, and belongs to the technical field of control cable production. Background technique [0002] The use occasions of control cables are different, and the characteristics and requirements of control cables are also different. Especially large-scale construction projects, underground railways, power plants, nuclear power plants and other occasions that have strict requirements on the use of cables, not only require the cables to have good properties s...

AI Technical Summary

Problems solved by technology

The control cables of the background technology have the following problems: simple structure, poor waterproof, rodent-proof, termite-proof, and mechanical external force resistance, which cannot meet the requirements of multi-layer protection. After the cable is damaged by water, insect pests, mechanical external force, etc. short

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