B1-grade flame-retardant power cable and production process thereof

A technology for power cables and flame retardant fabrics, applied in power cables, power cables with shielding/conducting layers, insulated cables, etc. The effect of improved abrasiveness and conductor structure design

Inactive Publication Date: 2020-04-14
HANGZHOU CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, laser printing technology is used to penetrate the skin of the protective layer to improve the recognition and perfectly solve the problem of easy erasure after printing of polyethylene ink

Method used

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  • B1-grade flame-retardant power cable and production process thereof
  • B1-grade flame-retardant power cable and production process thereof

Examples

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described and illustrated through specific examples below.

[0034] Unless otherwise specified, the raw materials used in the examples of the present invention are commonly used raw materials in the art, and the methods used in the examples are conventional methods in the art.

[0035] A class B1 flame retardant power cable, such as figure 1As shown, it is a single-core cable, and it includes a type wire conductor 1, a conductor shielding layer 2, an insulating layer 3, an insulating shielding layer 4, a metal shielding layer 5, a flame-retardant inner sheath 6, a metal armor 7 and The flame-retardant outer sheath 8 is provided with a flame-retardant cloth tape 9 between the metal shielding layer 5 and the flame-retardant inner sheath 6, and between the metal armor 7 and the flame-retardant outer sheath 8; the molded wire conductor 1 is copper or aluminum alloy, the type wire conductor 1 includes at least...

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Abstract

The invention relates to the technical field of flame-retardant power cables and especially relates to a B1-grade flame-retardant power cable and a production process thereof. The cable is a single-core cable and sequentially comprises a molded line conductor, a conductor shielding layer, an insulating layer, an insulation shielding layer, a metal shielding layer, a flame-retardant inner sheath, ametal armor and a flame-retardant outer sheath from inside to outside, and flame-retardant cloth tapes are arranged between the metal shielding layer and the flame-retardant inner sheath and betweenthe metal armor and the flame-retardant outer sheath. Aiming at a high filling degree of a flame-retardant sheath material, a machine head part is improved so that the material can be smoothly extruded on the cable.

Description

technical field [0001] The invention relates to the technical field of flame-retardant power cables, in particular to a class B1 flame-retardant power cable and a production process thereof. Background technique [0002] Flame retardant power cable refers to the cable that the sample is burned under the specified test conditions. After the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or residual flame can extinguish itself within a limited time. The fundamental characteristic is: it may be burned out and cannot operate in case of fire, but it can prevent the spread of fire. In layman's terms, in the event of a wire fire, it can limit the combustion to a local area without spreading, keep other various equipment, and avoid greater losses. [0003] Existing flame-retardant power cables are mainly divided into two categories: halogen-containing flame-retardant power cables and halogen-free low-smoke flame-retardant...

Claims

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Application Information

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IPC IPC(8): H01B9/02H01B9/00H01B7/295H01B7/36H01B13/02H01B13/14H01B13/24H01B13/22H01B13/26H01B13/34
CPCH01B7/295H01B7/36H01B9/006H01B9/02H01B9/025H01B9/027H01B13/02H01B13/14H01B13/148H01B13/22H01B13/24H01B13/26H01B13/348
Inventor 孙永哲张晓明魏学志
Owner HANGZHOU CABLE
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