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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.

Active Publication Date: 2013-05-29
HEBEI HUATONG WIRES & CABLES GRP CO LTD
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  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[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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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/28H01B7/18H01B7/22H01B7/29H01B13/00
CPCY02A30/14
Inventor 王怀安张书军张宝龙曹强程伟吕殿泉窦丽梅石玉梁纪艳丽李冠阳
Owner HEBEI HUATONG WIRES & CABLES GRP CO LTD
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