Environment-protection weather-proof self-temperature-sensitive fireproof cable and manufacturing method thereof

A fire-resistant cable, warm-type technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of poor extrusion resistance of the fire-proof mud isolation layer, waste of time and production costs, and the insulation mica tape is easy to be affected by moisture, etc., to achieve protection Normal power supply, slow down heat conduction, excellent low-smoke, halogen-free flame retardant effect

Inactive Publication Date: 2019-06-28
浙江万马股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems in the above-mentioned prior art that there are many insulating multi-layer wrappings, production in different steps, and uneven insulation is prone to defects; the mica tape of the insulating layer is easy to be damp and needs to be dried, which wastes time and production costs; In order to solve the problem of poor extrusion bearing capacity, an environment-friendly, weather-resistant, self-sensing temperature-resistant fireproof cable and its production method are provided.

Method used

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  • Environment-protection weather-proof self-temperature-sensitive fireproof cable and manufacturing method thereof

Examples

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Effect test

Embodiment 1

[0023] An environment-friendly, weather-resistant, self-inductive temperature-resistant fireproof cable (see attached figure 1 ), including wire core, inner halogen-free tape 4, aluminum sheath 5, fireproof mud isolation layer 6, middle halogen-free tape 7, steel belt interlocking armor layer 8, outer halogen-free tape 9, outer sheath 10 , the outer side of the wire core is covered with an inner halogen-free tape, the outer side of the inner halogen-free tape is covered with an aluminum sheath, the outer side of the aluminum sheath is extruded with a fireproof mud isolation layer, and the outer side of the fireproof mud isolation layer is wrapped Equipped with medium-halogen-free tape, the outer side of the medium-halogen-free tape is covered with a steel belt interlocking armor layer, the outer side of the steel-belt interlocking armor layer is covered with an outer halogen-free tape, and the outer side of the outer halogen-free tape is wrapped An outer sheath is provided, an...

Embodiment 2

[0027] This embodiment is an environment-friendly, weather-resistant, self-temperature-sensitive fireproof cable with multi-core insulated wire cores, which is basically the same as Embodiment 1, except that in this embodiment, the number of wire cores is greater than 2. In this embodiment, the wire The number of cores is 4, and all the cores are wrapped by the inner halogen-free tape, and the inner space of the inner halogen-free tape is filled with a filler rope.

Embodiment 3

[0029]In this embodiment, the parameters of the added color masterbatch are manually adjusted according to the parameters of the environmentally friendly weather-resistant self-temperature-sensitive fireproof cable, so that the insulating layer changes from black to transparent when the temperature exceeds 60°C or 55°C and other artificially set temperatures Color, through the perception of temperature to cause color changes to play a visible safety warning role.

[0030] A method for manufacturing an environment-friendly weather-resistant self-temperature-sensing fireproof cable, which is used to make the above-mentioned environment-friendly weather-resistant self-temperature-sensing fireproof cable, comprising the following steps:

[0031] Step 1: Press the circular copper conductor tightly, wrap two layers of mica tape on the outside of the copper conductor, and extrude ceramic flame-retardant polyolefin insulation material as a composite insulation fireproof layer;

[0032...

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Abstract

The invention relates to an environment-protection weather-proof self-temperature-sensitive fireproof cable, and overcomes disadvantages in the prior art. The cable comprises a cable core, an inner halogen free taping, an aluminum sheath, a fireproof mud isolation layer, an intermediate halogen free taping, a steel band linked armor layer, an outer halogen free taping and an oversheath; the innerhalogen free taping wraps the cable core, the aluminum sheath wraps the inner halogen free taping, the fireproof mud isolation layer wraps the aluminum sheath, the intermediate halogen free taping wraps the fireproof mud isolation layer, the steel band linked armor layer wraps the intermediate halogen free taping, the outer halogen free taping wraps the steel band linked armor layer, and the oversheath wraps the outer halogen free taping; and the oversheath is a self-temperature-sensitive color-change oversheath.

Description

technical field [0001] The invention relates to a cable, in particular to an environment-friendly weather-resistant self-temperature-sensing fireproof cable and a manufacturing method thereof. Background technique [0002] At present, the insulation layer outside the conductor of domestic high-demand fireproof cables is wrapped with multi-layer (4-6 layers) mica tape. On the one hand, multi-layer wrapping is easy to cause uneven tape and requires multiple wrapping processes to increase production. Time and cost. In addition, the mica tape is prone to moisture and needs to be dried before the next process, which increases production time and production costs. In order to solve the above problems, the fireproof cable of the present invention first overlaps and wraps two layers of mica tape on the copper conductor at one time, and then extrudes ceramicized flame-retardant polyolefin insulating material synchronously on the outside as a composite insulating fireproof layer, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/282H01B7/29H01B7/295
CPCY02A30/14
Inventor 李金堂刘焕新王玲红高振军
Owner 浙江万马股份有限公司
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