Easy-peeling-type flame-retardant thermal insulation cable

A flame-retardant cable, easy-stripping technology, applied in the direction of insulated cables, bendable cables, cables, etc., can solve the problems of casualties, equipment damage, easy damage, etc., to increase bending strength, reduce deformation, and improve construction efficiency Effect

Inactive Publication Date: 2013-12-25
JINYUAN ELECTRIC GRP
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] At the same time, when the cable is used in harsh environments such as underground coal mines, it is easily damaged due to long-term contact with harmful substances such as sedi

Method used

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  • Easy-peeling-type flame-retardant thermal insulation cable

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Embodiment Construction

[0016] Please refer to figure 1 , is an easy-peelable heat-insulating and flame-retardant cable proposed by the present invention, comprising a wire core 1 and a shielding layer 2 arranged on the outer periphery of the wire core 1, and a heat-insulating and flame-retardant layer 3 is arranged on the outside of the shielding layer 2, The heat insulation and flame retardant layer 3 is provided with an insulating outer sheath 5 .

[0017] In this embodiment, the heat-insulating and flame-retardant layer is made of fiber cloth; the insulating outer sheath is a low-smoke, halogen-free, flame-retardant sheath made of polyethylene; and the shielding layer is made of semiconductor crosslinking material.

[0018] Please refer to figure 1 A filling material 4 is provided between the heat-insulating and flame-retardant layer 3 and the insulating outer sheath 5 , and the filling material 4 is peelably adhered to the insulating outer sheath 5 .

[0019] The filling material 4 is talcum p...

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Abstract

The invention discloses an easy-peeling-type flame-retardant thermal insulation cable which comprises a cable core, a shielding layer arranged at the periphery of the cable core, a flame-retardant thermal insulation layer and an insulating outer sheath layer, wherein talcum powder serving as a filling material which can be adhered to and peeled off from the insulating outer sheath layer is arranged between the flame-retardant thermal insulation layer and the insulating outer sheath layer. The talcum powder arranged between the flame-retardant thermal insulation layer and the insulating outer sheath layer is taken as the filling material, so that the adhesive force between the flame-retardant thermal insulation layer and the insulating outer sheath layer is greatly decreased. Thus, the insulating outer sheath layer can be peeled off from the cable core easily if necessary. Therefore, the peeling workload is greatly lowered and the construction efficiency is improved. Meanwhile, the winding strength of the cable is enhanced by the addition of the talcum powder layer, so that the deformation is decreased. In addition, the cable core can be protected by the flame-retardant thermal insulation layer after the insulating outer sheath layer is peeled off, so that the cable is prevented from being damaged when used in severe environments such as underground coal mines. As a result, the security coefficients of equipment and working personnel are improved.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to an easy-peelable heat-insulating and flame-retardant cable. Background technique [0002] Existing cables are generally multi-core stranded and then compiled into cables. The cable core of the cable is usually wrapped by several layers of polymeric materials. These layers of polymeric materials generally include the shielding layer and insulating layer outside each cable core. Add another insulating shield of the cable, then the metal layer or wire shield, and then the outermost jacket. Since today's cable designs are co-extruded, the layers of polymeric material are tightly bonded. [0003] Tight bonding prevents partial delamination between layers and eliminates voids formed between layers, preventing premature cable failure. However, in engineering connection, in order to connect the cable and accessories more conveniently, it is usually necessary to strip the insul...

Claims

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Application Information

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IPC IPC(8): H01B7/38H01B7/04H01B7/295H01B7/17
Inventor 景宝玺吴仁杰徐延琴董启阳叶明清
Owner JINYUAN ELECTRIC GRP
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