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Low-smoke halogen-free low-toxicity locomotive cable

A locomotive cable, low toxicity technology, applied in the direction of insulated cables, power cables, power cables with shielding layer/conductive layer, etc., to achieve low toxicity, strong outdoor adaptability, strong high temperature resistance, and good low smoke effect

Pending Publication Date: 2019-01-01
南通信昌线缆有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing locomotive cables cannot fully meet the above requirements

Method used

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  • Low-smoke halogen-free low-toxicity locomotive cable

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Embodiment Construction

[0013] Low-smoke, halogen-free and low-toxicity locomotive cables, see figure 1 : It includes a sheath 1, a shielding layer 2, and a braided layer 3 arranged sequentially from the outside to the inside, and the inner cavity 4 of the braided layer 3 is provided with two power lines 5, and the two power lines are 5 pairs After being twisted, it is arranged in the inner cavity 4, and a number of PP ropes 6 are arranged in the space area of ​​the inner cavity 4 except the power cord 5, and the sheath 1 is made of XL material with high flame resistance, low smoke, halogen, and low toxicity.

[0014] Each power cord 5 includes a central conductor 7 and an outer insulating layer 8. The outer insulating layer 8 is specifically made of high flame-retardant, low-smoke, halogen-free, and low-toxic XL material, and the central conductor 7 is specifically made of soft multi-strand Class 5 fine conductors;

[0015] The corresponding PP rope 6 is arranged in the twisted space of the two powe...

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Abstract

The invention provides a low-smoke halogen-free low-toxicity locomotive cable, which has the characteristics of high flame retardance, low smoke effects and low temperature resistance. The cable is halogen-free, low-toxicity, adapted to outdoors and strong in high temperature-resisting performance. The low-smoke halogen-free low-toxicity locomotive cable comprises a sheath with a ring-shaped crosssection, a shielding layer and a braiding layer sequentially arranged from outside to inside, wherein the inner cavity of the braiding layer is provided with two power lines; the two power lines aretwisted in a pair and are then arranged in the inner cavity; the space area, except the power lines, in the inner cavity is also provided with a plurality of PP ropes; and the sheath is made of a high-flame retardance low-smoke halogen-free low-toxicity XL material.

Description

technical field [0001] The invention relates to the technical field of cable structures, in particular to low-smoke, halogen-free and low-toxicity locomotive cables. Background technique [0002] Cables for locomotives are mostly used for power, control and related circuits. In order to reduce the danger to people and improve railway safety in the event of a fire, the cables must limit the spread of flames, reduce the emission of toxic gases and smoke, and greatly reduce the fire caused by low visibility. And cause loss and reduce evacuation time. Existing locomotive cables cannot fully meet the above-mentioned requirements. Contents of the invention [0003] In view of the above problems, the present invention provides a low-smoke, halogen-free, and low-toxicity locomotive cable, which has high flame retardancy, good low-smoke effect, and low-temperature resistance, and is halogen-free, low-toxic, and has strong outdoor and high-temperature resistance. [0004] The low-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/18H01B7/29H01B7/295H01B9/00H01B9/02
CPCH01B7/17H01B7/1825H01B7/1895H01B7/292H01B7/295H01B9/006H01B9/021H01B9/022
Inventor 史家有陈雪原
Owner 南通信昌线缆有限公司
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