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Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable

A concentric conductor, high flame retardant technology, used in power cables with shielding/conducting layers, etc., can solve problems such as large circuit loss and impedance imbalance, unequal impedance of each phase, and environmental pollution.

Active Publication Date: 2011-09-14
GOLD CUP ELECTRIC APP HENGYANG CABLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary five-core low-voltage power cables generally use five-core circular, fan-shaped or tile-shaped structures to be cabled and twisted together. The phase sequence of the cable in this structure is relatively large, and the impedance of each phase is not equal, which will cause large circuit losses. and impedance imbalance
At the same time, ordinary rodent-proof and ant-proof cables generally use non-environmentally friendly additives such as dieldrin and axotropic agent and heavy metal materials as stabilizers in the outer sheath of the cable. environmental pollution

Method used

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  • Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable
  • Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable
  • Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Such as figure 1 The rodent-proof, termite-proof, high flame-retardant, fire-resistant and environment-friendly concentric conductor cable includes a fire-resistant insulated core, a zero-line concentric conductor layer wrapped outside the fire-resistant insulated core, and a zero-line concentric conductor layer wrapped outside the zero-line concentric conductor layer. The isolation layer 9, the protective core concentric conductor layer coated outside the isolation layer 9, and the outer sheath 13 coated outside the protective core concentric conductor layer.

[0018] The outer sheath 13 is made of extruded rodent-proof, termite-proof, low-smoke, halogen-free, flame-retardant polyolefin sheath material, its oxygen index should not be less than 36, the thickness is about 2.5mm, and the outer diameter is 47.1-47.5mm. The color of the outer sheath 13 is generally black, and can be adjusted to other colors according to customer requirements.

[0019] The protective core c...

Embodiment 2

[0026] see figure 2 , The cross-sectional shape of the insulated core wire of this embodiment is different from that of Embodiment 1, and the rest is the same as that of Embodiment 1. The insulated core wire of this embodiment is composed of a conductor 1, a refractory layer 2 covered outside the conductor 1, and an insulating layer 3 covered outside the refractory layer 2, wherein the conductor 1 is an annealed copper stranded conductor, and the material is oxygen-free electrolytic Copper, the cross-sectional shape is a fan-shaped twisted compact structure. The fan-shaped height is 11.3±0.1mm, and the fan-shaped width is 18.8±0.2mm. Firstly, 36 annealed copper wires are concentrically twisted into conductor 1 according to the arrangement of 6+12+18, and there are 3 layers in total, each layer is twisted in the opposite direction, from inside to The twisting directions of each outer layer of strands are: right direction, left direction and right direction. The refractory la...

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Abstract

The invention discloses a mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable. The concentric conductor cable comprises a fireproof insulation wire and an outer sheath, and is characterized by further comprising a zero line concentric conductive layer wrapped outside the fireproof insulation wire, an isolation layer wrapped outside the zero line concentric conductive layer and a protection wire concentric conductor layer wrapped outside the isolation layer; and the outer sheath is wrapped outside the protection wire concentric conductor layer. The mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable has the advantages that: the cable can be applied to an environment capable of preventing mouse biting and termite gnawing, and all materials are environment-friendly, so various fireproof and antiflaming environment requirements can be met. By arranging the zero line concentric conductive layer and the protection wire concentric conductor layer, phase sequence impedance and zero sequence impedance can be matched. The concentric conductor cable is a very ideal power cable applied to public places and large engineering such as nuclear power stations, metros, airports and the like.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a rodent-proof, termite-proof, high flame-retardant, fire-resistant and environment-friendly concentric conductor cable. Background technique [0002] Ordinary five-core low-voltage power cables generally use five-core circular, fan-shaped or tile-shaped structures to be cabled and twisted together. The phase sequence of the cable in this structure is relatively large, and the impedance of each phase is not equal, which will cause large circuit losses. and impedance imbalances. At the same time, ordinary rodent-proof and ant-proof cables generally use non-environmentally friendly additives such as dieldrin and axotropic agent and heavy metal materials as stabilizers in the outer sheath of the cable. The environment causes great pollution. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rodent-proof, termite-proof, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/02
Inventor 艾卫民陈善求黄海
Owner GOLD CUP ELECTRIC APP HENGYANG CABLES
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