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Low-smoke halogen-free fireproof communication cable for ship and manufacturing method thereof

A communication cable and fire-resistant technology, which is used in the manufacture of cables/conductors, cables with double-stranded/quad-stranded, circuits, etc. The effect of protecting safety, solving escape difficulties, and reducing harm to human body

Active Publication Date: 2013-02-27
SICHUAN MINGXING CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current fire-resistant cables for ships are usually extruded with cross-linked polyethylene on the fire-resistant mica layer, and the sheath material is cross-linked polyolefin. Because of the use of plastic insulation and sheath, the bending radius of the cable is relatively large, causing the attached cable to be occupied. larger space

Method used

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  • Low-smoke halogen-free fireproof communication cable for ship and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A low-smoke, halogen-free, fire-resistant communication cable for ships, including a core wire and a flame-retardant tape layer 6, the core wire is divided into six bundles of peripheral core wires and a bundle of central core wires, and a set of There is a filling layer 5, and each bundle of core wires includes a refractory insulating layer 2, a sub-shielding layer 3, an explosion-proof safety layer 4 and a plurality of conductors 1, and the refractory insulating layer 2 is extruded on the conductor 1, and the plurality of extruded The conductor 1 of the refractory insulating layer 2 is stranded for the first time, the sub-shielding layer 3 is braided on the refractory insulating layer 2 twisted for the first time, and the explosion-proof safety layer 4 is extruded on the sub-shielding layer 3 A bundle of core wires is formed, six bundles of peripheral core wires and a bundle of central core wires are twisted for the second time to form a finished core wire, and the fla...

Embodiment 2

[0043] The difference from Example 1 is that in the present invention, an inner sheath layer 7, a total shielding layer 8 and an outer sheath layer 9 are also included, and the inner sheath layer 7 is extruded on the flame-retardant tape layer 6 , the overall shielding layer 8 is braided on the inner sheath layer 7 , and the outer sheath layer 9 is extruded on the overall shielding layer 8 .

[0044] In the present invention, both the inner sheath layer 7 and the outer sheath layer 9 are low-smoke halogen-free polyurethane layers.

[0045] In the present invention, the filling layer 5 is a fan-shaped low-smoke halogen-free polyolefin layer.

Embodiment 3

[0047] A method for manufacturing a low-smoke, halogen-free, fire-resistant communication cable for ships, comprising the following steps:

[0048] 1) Material selection: use tinned copper as the conductor 1;

[0049] 2) Extruded refractory insulating layer 2 and the first stranding: ceramic silicone rubber is used as the refractory insulating layer 2 to extrude on the conductor 1, and multiple conductors 1 extruded with the refractory insulating layer 2 are subjected to the first stranding. stranded;

[0050] 3) Braided sub-shielding layer: Tinned copper wire is used as the sub-shielding layer 3 on the refractory insulating layer 2 after braiding multiple conductors 1;

[0051] 4) Extruded explosion-proof safety layer: use low-smoke halogen-free polyurethane elastomer as the explosion-proof safety layer 4 and extrude it on the sub-shielding layer 3 to form a bundle of core wires;

[0052] 5) Repeat steps 1)-4) to produce six bundles of peripheral core wires and one bundle o...

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Abstract

The invention provides a low-smoke halogen-free fireproof communication cable for a ship, comprising a core wire and an inflaming retarding wrapping tape layer, wherein the core wire is divided into six bundles of peripheral core wires and one bundle of a central core wire; filling layers are arranged among the seven bundles of the core wires; each bundle of the core wire comprises a fireproof insulating layer, a sub-shielding layer, an explosion-proof safety layer and a plurality of conductors; the fireproof insulating layer is extruded on the conductors; a plurality of the conductors extruded with the fireproof insulating layer are twisted for the first time to form a whole body; the sub-shielding layer is braided on the fireproof insulating layer which is twisted for the first time; the explosion-proof safety layer is extruded on the sub-shielding layer to form one bundle of the core wire; and six bundles of the peripheral core wires and one bundle of the central core wire are twisted for the second time to form a finished-product core wire. According to the low-smoke halogen-free fireproof communication cable for the ship, the fireproof performance of the cable is greatly improved; a cable insulating wire core is prevented from being damaged when the cable is collided or commonly exploded on the ship; damages on people, which are caused by sparks, electric arcs and high heat and temperature generated by the cable, can be prevented; and an auxiliary space of the cable on the ship is saved.

Description

technical field [0001] The invention relates to a cable for ships and a manufacturing method thereof, in particular to a low-smoke, halogen-free, fire-resistant communication cable for ships and a manufacturing method thereof. Background technique [0002] At present, fire-resistant cables for ships in my country basically use wrapped mica tape as the fire-resistant layer, which can meet the basic fire-resistant test requirements of 750°C flame temperature. This kind of fire-resistant cable has a short fire-resistant time in the event of a fire, generally about 1.5 hours. [0003] With the acceleration of China's modernization and the development of ships, high requirements are placed on wires and cables, especially the requirements for fire-resistant ship cables. Due to the reason of the laying place of the fire-resistant cable itself, the fire-resistant performance can determine a fire. The traditional fire-resistant cable can no longer meet the requirements of developme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/06H01B13/00
Inventor 吕刚李广元沈卢东盛业武陈光高沈智飞李勇军
Owner SICHUAN MINGXING CABLE
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