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Rare-earth high-iron aluminum alloy environment-friendly nano-fire-insulated fire-resistant cable

A nano fire-proof and fire-resistant cable technology, applied in the direction of nanotechnology, nanotechnology, insulated cables, etc., can solve the problems of mechanical properties that cannot meet the requirements, affect the service life of cables, conductor temperature heating and creep, etc., to alleviate the scarcity of copper resources , Simple structure, good non-corrosive effect

Active Publication Date: 2018-10-02
SHANGHAI YONGJIN SPECIAL CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the conductor cores used for power transmission in China are mainly copper conductors. With the increase in the demand for copper conductors in electronic products, the contradiction of copper resource scarcity has become increasingly prominent. Even if some copper conductors are replaced by aluminum conductors, due to the Prone to electrochemical corrosion, creep, poor mechanical properties, not easy to bend and other problems affect the service life of the cable
In order to replace copper conductors and make up for the defects of pure aluminum conductors, aluminum alloy conductors are widely used, but the mechanical properties of simple conductors made of aluminum alloy materials still cannot meet the requirements. When high-order harmonic currents pass through the cable, the conductors Temperature rises, heating and creeping, posing safety hazards

Method used

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  • Rare-earth high-iron aluminum alloy environment-friendly nano-fire-insulated fire-resistant cable
  • Rare-earth high-iron aluminum alloy environment-friendly nano-fire-insulated fire-resistant cable
  • Rare-earth high-iron aluminum alloy environment-friendly nano-fire-insulated fire-resistant cable

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Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the main body of the cable is provided with two cable cores, and the two cable cores both have a structure in which the conductor core 1 is covered with an insulating layer 2 . The cross-sections of the two cable cores are arranged in a straight line, and the inner isolation layer 3 is wrapped around the outside of the two cable cores arranged in bundles. The inner isolation layer 3 and the insulating layer 2 have a double insulation protection effect on the conductor core 1 . Between the inner isolation layer 3 and the insulating layer 2 is filled with an environmentally friendly fire-proof filler 7, and the outside of the inner isolation layer 3 is covered with a self-locking armor protection layer 4, and a composite The environment-friendly nano fire-proof layer 6 and the composite environment-friendly nano-fire-proof layer 6 are provided with a flame-retardant protective layer 8 outside.

Embodiment 2

[0041] Such as figure 2As shown, the main body of the cable is provided with three cable cores, and the three cable cores all have a structure in which the conductor core 1 is covered with an insulating layer 2 . The cross-sections of the three cable cores are arranged in the shape of a square, and the inner isolation layer 3 is wrapped around the outside of the three cable cores arranged in bundles. The space between the inner isolation layer 3 and the insulating layer 2 is filled with an environmentally friendly fire-proof filler 7, and the inner isolation layer 3 is provided with a composite environmental protection nano-fire insulation layer 6, and the exterior of the composite environmental protection nano-fire insulation layer 6 is provided with flame-retardant protection. Layer 8.

Embodiment 3

[0043] Such as image 3 As shown, the main body of the cable is provided with four cable cores, and the four cable cores all have a structure in which the conductor core 1 is covered with an insulating layer 2 . The cross-sections of the four cable cores are arranged in a square shape, and the inner isolation layer 3 is wrapped around the outside of the four cable cores arranged in bundles. An environment-friendly and fireproof filler 7 is filled between the inner isolation layer 3 and the insulating layer 2 . The inner isolation layer 3 adopts an embossed high-strength flame-retardant belt provided with a fiber band to improve the overall strength and flexibility of the inner isolation layer, and the arrangement of the fiber band can improve the fire resistance of the inner isolation layer. A flame-retardant protective layer 8 is provided on the outside of the composite environmental protection nano-fire-proof layer 6, and the composite environmental-friendly nano-fire-proof...

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Abstract

The invention relates to the technical field of electrotechnical products, and in particular relates to a cable. A rare-earth high-iron-aluminum-alloy environment-friendly nanometer refuge floor fire resisting cable comprises a cable main body, wherein the cable main body comprises a cable core, the cable core comprises a conductor core and an insulating layer, the insulating layer covers the external of the conductor core, and an inner insulating layer, a composite environment-friendly nanometer refuge floor and an inflaming retarding protective layer are respectively arranged on the external of the cable core from inside to outside. Through the adoption of technical scheme, the fire resisting cable is simple in structure and easy to manufacture; the aluminum alloy material is used as the conductor core so as to ease the predicament that the copper resource is scarce, and is easy to popularize; the cable has good fire resistance, electricity performance, mechanical performance, flexible performance, electrochemical corrosion resistance, and is wide in applicable range, high in security performance and is an environment-friendly product.

Description

technical field [0001] The invention relates to the technical field of electrical products, in particular to a cable. Background technique [0002] High-rise and ultra-high-rise buildings, large entertainment venues, large-scale industrial and mining enterprises, and underground projects have a large demand for electric energy, and cables are often laid densely. Once a fire occurs, the flame will spread along the cables and spread to other floors. In many fires, in addition to the flames that cause danger to personal life, toxic gases such as acid gas and chlorine gas released after burning cables often cause serious "secondary hazards" to human life. In addition, power outages caused by cable fires directly affect to the escape and evacuation of personnel. Therefore, the fire-proof and fire-resistant technology of cables has attracted more and more attention, and has become an important development direction of the cable industry. [0003] In terms of the fire resistance ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/29H01B7/295H01B7/18H01B7/04H01B7/28B82Y30/00
Inventor 包正东陈智陈浩付启飞
Owner SHANGHAI YONGJIN SPECIAL CABLE
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