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High-flame-retardation high-fireproof flexible cable used for communication power supply

A high flame retardant technology for communication power supply, applied in the direction of insulated cables, bendable cables, cables, etc., can solve the problems of general toxic gas with flame retardant effect, personnel hazards of communication base stations, etc., achieve good flame retardant effect and improve fire resistance. Flame retardant effect, effect of improving mechanical properties and heat resistance

Inactive Publication Date: 2016-04-13
ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, buildings, especially communication base stations, use a lot of electrical equipment, and the probability of fire is also high. In the event of a fire, the current communication cable products have a general flame retardant effect and combustion will produce a large amount of toxic gas, which is harmful to communication base station personnel. Hazard in fire escape

Method used

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  • High-flame-retardation high-fireproof flexible cable used for communication power supply
  • High-flame-retardation high-fireproof flexible cable used for communication power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown in the figure, a high flame-retardant and high-fire-resistant flexible cable for communication power supply includes a bare copper soft conductor 1, a wrapping layer 2, an insulating layer 3, and a sheath layer 4. Several bare copper soft conductors 1 are twisted in the same direction, and the wrapping Layer 2, insulating layer 3, and sheath layer 4 are arranged outside the bare copper flexible conductor 1, the insulating layer 3 includes halogen-free polyolefin and halogen-free polyurethane, and the material of sheath layer 4 is cross-linked thermosetting halogen-free polyolefin.

[0024] The ratio of halogen-free polyolefin and halogen-free polyurethane is 7:3. The material of the insulating layer 3 also includes magnesium oxide and aluminum oxide. The material of the insulating layer 3 includes 60-70% halogen-free polyolefin, 20-25% halogen-free polyurethane, 5-10% magnesium oxide, and 2-5% aluminum oxide by mass ratio. The mica tape is us...

Embodiment 2

[0026] Such as figure 2 As shown, a multi-core communication power supply with high flame-retardant and high fire-resistant flexible cable includes several cores 5, filling 6, fireproof coating 7, inner sheath 8, metal protective layer 9, outer sheath 10, fireproof The cladding 7, the inner sheath 8, the metal protective layer 9, and the outer sheath 10 are sequentially arranged on the outer sides of several wire cores 5 from the inside to the outside, and the filling 6 is arranged between the gaps between the wire cores 5 in the fireproof cladding 7, and the inner The material of layer sheath 8 includes halogen-free polyolefin and halogen-free polyurethane, and the material of outer sheath 10 is cross-linked halogen-free polyolefin.

[0027] The 8 sets of materials for the inner layer and the outer sheath also include magnesium oxide and aluminum oxide. The mass ratio is 60-70% halogen-free polyolefin, 20-25% halogen-free polyurethane, 5-10% magnesium oxide and 2~ 5% alumin...

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Abstract

The invention discloses a high-flame-retardation high-fireproof flexible cable used for a communication power supply. The high-flame-retardation high-fireproof flexible cable comprises bare copper flexible conductors, a wrapping layer, an insulating layer and a sheath layer. The plurality of bare copper flexible conductors are stranded in the same direction. The wrapping layer, the insulating layer and the sheath layer are arranged at the outer side of the bare copper flexible conductors. The insulating layer includes halogen-free polyolefin and halogen-free polyurethane. The sheath layer is made of crosslinking thermoset halogen-free polyolefin. According to the invention, the properties of multiple polymeric materials are integrated to ensure the good flexible and bendable performance of the cable itself; and flame-retardation materials such as magnesium oxide and alumina are added, and magnesium chloride is used to ensure that the flame-retardation materials are well mixed into the internal materials, so that a good fireproof flame-retardation effect is achieved, no poisonous gas is generated, and damages to people are avoided.

Description

technical field [0001] The invention relates to a flexible cable, in particular to a flexible cable with high flame resistance and high fire resistance for communication power supply. Background technique [0002] Communication base stations or power transmission and distribution systems in buildings need to use a large number of flexible cables. The flexible cables have good bending performance and are convenient for indoor wiring. However, buildings, especially communication base stations, use a lot of electrical equipment, and the probability of fire is also high. In the event of a fire, the current communication cable products have a general flame retardant effect and combustion will produce a large amount of toxic gas, which is harmful to communication base station personnel. Hazard in fire escape. Therefore, how to improve the flame-retardant effect of the flexible communication cable and ensure that no toxic gas is produced has become an urgent problem to be solved. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/295H01B7/02H01B7/04H01B3/42
CPCH01B3/421H01B7/02H01B7/04H01B7/295
Inventor 马赟顾小刚梁斌陆如泉
Owner ZHONGTIAN TECH IND WIRE&CABLE SYST CO LTD