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Safe and flexible fire resistant cable

A fire-resistant cable and soft technology, which can be used in insulated cables, bendable cables, cables, etc., can solve the problems of large investment in manufacturing equipment, difficult market promotion and application, and high hardness.

Inactive Publication Date: 2015-06-10
SHANGHAI SPECIAL WIRE & CABLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing magnesium oxide insulated and copper tube sheathed cables are made by multiple annealing and multiple drawing processes, and the length of the product is limited by the production equipment and site
Moreover, intermediate connectors must be used for on-site laying, so the weight of the line and the workload of installation will be increased.
At the same time, the hardness is high, such as rigid rods, so it is inconvenient to install on site
As a result, the investment in manufacturing equipment is large, and the production site also requires a considerable amount of magnesium oxide insulation, copper tube sheathed cables, and there are certain difficulties in market promotion and application.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] A safe and flexible fire-resistant cable, the structure of which is as follows figure 1 As shown, it consists of conductor 1, wrapped refractory mica tape 2, wrapped ceramic fiber tape 4, extruded and coated corrugated aluminum tube 5, extruded polymer precursor 6, wrapped fire barrier layer 7, extruded halogen-free low made of smoke flame-retardant sheath 8, wrapping refractory mica tape 2 on the outside of conductor 1 to form a cable wire, wrapping ceramic fiber tape 4, extruding and coating corrugated aluminum tube 5, extruding polymer precursor 6, wrapping The fire barrier layer 7 and the extruded halogen-free low-smoke flame-retardant sheath 8 are sequentially coated on the outside of the cable conductor from the inside to the outside. In addition, fine atomized silicone oil is sprayed on the surface of the wrapping refractory mica tape 2, the wrapping ceramic fiber tape 4 and the wrapping fire insulation layer 7, and the fire resistance of the cable made has passe...

Embodiment 2

[0028] A safe and flexible fire-resistant cable, the structure of which is as follows figure 2 As shown, it consists of conductor 1, wrapped refractory mica tape 2, filled ceramic fiber rope 3, wrapped ceramic fiber tape 4, extruded and coated corrugated aluminum tube 5, extruded polymer precursor 6, wrapped fire barrier layer 7 1. Made of extruded halogen-free low-smoke flame-retardant sheath 8, wrapped with refractory mica tape 2 and wrapped on the outside of conductor 1 to form a cable wire, filled with ceramic fiber rope 3, wrapped with ceramic fiber tape 4, extruded and coated with corrugated aluminum The tube 5, the extruded polymer precursor 6, the wrapped fire barrier layer 7, and the extruded halogen-free low-smoke flame-retardant sheath 8 are sequentially coated on the outside of the cable conductor from the inside to the outside. In addition, finely atomized silicon oil is sprayed on the surface of the wrapped refractory mica tape 2 and the filled ceramic fiber rop...

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Abstract

The invention relates to a safe and flexible fire resistant cable comprising a conductor, a wrapping fire-resistant mica tape, a wrapping ceramic fiber tape or filling ceramic fiber rope combined with the wrapping ceramic fiber tape, an extrusion coating corrupted aluminium tube, an extruded polymer precursor, a wrapping fire isolating layer and an extruded halogen-free low-smoke flame retardant sheath; the wrapping ceramic fiber tape coats the conductor to form a cable guide wire, and the wrapping fire-resistant mica tape, the wrapping ceramic fiber tape or filling ceramic fiber rope combined with the wrapping ceramic fiber tape, the extrusion coating corrupted aluminium tube, the extruded polymer precursor, the wrapping fire isolating layer and the extruded halogen-free low-smoke flame retardant sheath coat the cable guide wire from interior to exterior sequentially. Compared with the prior art, the safe and flexible fire resistant cable has the advantages of softness, lightness, small section area, fine heat radiation, large carrying flow and waterproof and moisture proof performances.

Description

technical field [0001] The invention belongs to the field of cables, in particular to a safe, reliable and flexible fire-resistant cable. Background technique [0002] With the improvement of people's awareness of fire prevention and the need for emergency response to fire, for example, time for emergency rescue or escape. Therefore, important buildings, engineering facilities or highly populated areas, such as subways, sports fields, office buildings and other places, clearly stipulate that fire-resistant cables must be installed. The existing magnesium oxide insulated and copper tube sheathed cables are made by multiple annealing and multiple drawing processes, and the length of the product is limited by the production equipment and site. Moreover, intermediate connectors must be used for on-site laying, so the weight of the line and the workload of installation are increased. At the same time, it has high hardness, such as a rigid rod, and it is inconvenient to install ...

Claims

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Application Information

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IPC IPC(8): H01B7/04H01B7/28H01B7/17H01B7/29H01B7/295
CPCY02A30/14
Inventor 李立虎王国钦李旭浩
Owner SHANGHAI SPECIAL WIRE & CABLE GROUP
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