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Environment-friendly composite functional flexible fireproof cable

A composite function, fireproof cable technology, applied in the direction of insulated cables, bendable cables, cables, etc., can solve the problems that affect the promotion and application of fireproof cables, unstable electrical performance, expensive manufacturing equipment, etc., to improve the stability of electric resistance and working temperature, excellent corrosion resistance and radiation resistance, good heat absorption and water blocking effects

Active Publication Date: 2012-12-26
HENAN HUATAI SPECIAL CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These fireproof cables generally have the following problems and difficulties: ①Complicated installation; ②Many intermediate joints during construction; ③Poor bending performance; ④Expensive manufacturing equipment and complicated process; Cracking; ⑦Large waste of resources and high cost; ⑧Instable electrical performance, high breakdown rate; ⑨Thick outer diameter, heavy weight, etc.
These factors have had a strong impact on the promotion and application of fireproof cables in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] Embodiment one: see figure 1 , an environment-friendly composite functional flexible fireproof single-core cable, which sequentially includes a conductor core 1, a fireproof layer 2, an insulating layer 3, a waterproof layer 4, a fireproof inner sheath 5 and a fireproof outer sheath 6 from inside to outside. Among them, the conductor core 1 is made of a number of soft round copper wires with the same diameter in a regular and concentric layered twist; the refractory layer 2 is processed by synthetic mineral refractory composite tape; the insulating layer 3 is made of 150 ° C It is processed by irradiation cross-linked polyolefin halogen-free insulating material; the waterproof layer 4 is processed by heat-insulating, halogen-free, low-smoke and high-flame retardant material; The outer sheath 6 is made of environmentally friendly, highly flame-retardant, low-smoke, halogen-free polyolefin material.

Embodiment 2

[0039] Embodiment two: see figure 2, an environment-friendly composite function flexible fireproof multi-core cable, which is composed of a cable inner core and an insulating and protective outer layer, the insulating and protective outer layer is wrapped around multiple cable inner cores, and fillers are arranged between the multiple cable inner cores 7. The cable inner core includes conductor core 1, refractory layer 2 and insulating layer 3. There are two or more cable inner cores (4 cable inner cores in the figure), and the outer insulation protection layer includes waterproof layer 4. Fireproof Inner sheath 5 and fireproof outer sheath 6. Among them, the conductor core 1 is made of a number of soft round copper wires with the same diameter in a regular and concentric layered twist; the refractory layer 2 is processed by synthetic mineral refractory composite tape; the insulating layer 3 is made of 150 ° C It is processed by irradiation cross-linked polyolefin halogen-fr...

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Abstract

The invention discloses an environment-friendly composite functional flexible fireproof cable. The cable comprises conductor cores, refractory layers, insulating layers, a waterproof layer, a fireproof inner protecting layer and a fireproof outer protecting layer which are sequentially arranged from the inside out, wherein each conductor core is formed by twisting a plurality of soft round copper wires with the same diameter in a layered manner; each refractory layer is processed by a synthetic mineral fireproof composite belt; each insulating layer is made from a 150-DEG C irradiate cross-linked polyolefin halogen-free insulating material; the waterproof layer is made from a heat-proof halogen-free low-smoke high-flame-retardancy material; the fireproof inner protecting layer is processed by a high-temperature resistant high-strength carbon fiber composite belt; and the fireproof outer protecting layer is made from an environment-friendly high-flame-retardancy low-smoke halogen-free polyolefin material. The environment-friendly composite functional flexible fireproof cable is an updated product of a traditional fireproof cable, has the favorable properties of fire resistance, low-temperature resistance, corrosion resistance, large current capacity, high mechanical strength, small size, light weight, long service life, sound grounding performance, good water resistance and the like, and is particularly suitable for occasions which are in strong radiation environments and demand smaller bending radii and high soft strength.

Description

1. Technical field: [0001] The invention relates to a fireproof cable, in particular to an environment-friendly flexible fireproof cable with composite functions, which belongs to the technical field of special fireproof cables. 2. Background technology: [0002] Electricity safety is a worldwide problem, especially when a fire accident occurs, how to leave sufficient time to ensure that people escape safely, reduce accident losses, ensure safe power on lines, and smooth signals, and how to improve key projects, important places, and special areas. Such fire safety grades are pursued by R&D personnel in the cable industry. Fireproof cables in the prior art, one is the MI type mineral insulated cable invented in the 1990s (that is, BTT fire-resistant copper tube wiring), the other is fire-resistant mica-wrapped polymer insulating material-coated fire-resistant cables, and then One is a fireproof metal isolation sheath type flexible fireproof cable. These fireproof cables ge...

Claims

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Application Information

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IPC IPC(8): H01B7/00H01B7/04H01B7/29H01B7/295H01B7/28H01B7/282H01B7/02
Inventor 李磊郭亚朋周振峰
Owner HENAN HUATAI SPECIAL CABLE
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