Unlock instant, AI-driven research and patent intelligence for your innovation.

a wire cable

A wire and cable, metal technology, applied in the field of wire and cable, can solve the problems of high temperature resistant adhesives losing cohesion, loose mica tape structure, loose bonding force, etc., to achieve good fire resistance, flame retardant insulation performance, excellent limit performance , Improve the effect of fire resistance

Active Publication Date: 2017-06-06
江苏宏基环电股份有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The fire-resistant wire and cable using the above-mentioned traditional fire-resistant mica tape can only guarantee to maintain its normal power supply for a certain period of time under the flame condition, and cannot operate normally in the state of being subjected to water showers and impacts.
The reason is that under flame conditions, the high temperature resistant adhesive has lost its cohesiveness, the glass fiber cloth has lost its mechanical strength, and the bonding force between the mica scales has been quite loose. The insulation resistance of the structural refractory layer drops sharply, and the insulation resistance between the lines cannot be maintained, resulting in a short circuit
When there is a mechanical impact, the mica tape structure, which has been burned quite loosely, becomes more loose and falls off, and cannot maintain its insulation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A wire and cable, including a conductor, a refractory layer, a resin insulation layer and a plastic jacket. The sinterable inorganic compound and ceramic silicone rubber are mixed in the adhesive to bond the mica paper layer and the reinforcing material layer of the mica tape, and then dried and cured at 150°C for 8 minutes; the mica tape is wound in two layers on the conductor as a fire-resistant Floor. The sinterable inorganic compound used is aluminum hydroxide. The particle size of aluminum hydroxide is 8 microns, and the amount of aluminum hydroxide contained in each square meter of the outer surface of the wire and cable is 0.5 grams. The amount of vitrified silicone rubber contained in the outer surface of the wire and cable is 3 grams per square meter, and the mica paper layer is 120 grams per square meter of phlogopite mica paper. The reinforcing material layer is glass cloth of 30 grams per square meter.

Embodiment 2

[0028] A wire and cable, including a conductor, a refractory layer, a resin insulation layer and a plastic jacket. The sinterable inorganic compound and ceramic silicone rubber are mixed in the adhesive to bond the mica paper layer and the reinforcing material layer of the mica tape, and then dried and cured at 150°C for 8 minutes; the mica tape is wound in two layers on the conductor as a fire-resistant Floor. The sinterable inorganic compound used is magnesium oxide. The particle size of magnesium oxide is 10 microns, and the amount of magnesium oxide contained in each square meter of the outer surface of the wire and cable is 1.5 grams. The amount of vitrified silicone rubber contained in the outer surface of the wire and cable is 5 grams per square meter, and the mica paper layer is 130 grams per square meter of phlogopite mica paper. The reinforcing material layer is glass cloth of 35 grams per square meter.

Embodiment 3

[0030] A wire and cable, including a conductor, a refractory layer, a resin insulation layer and a plastic jacket. The sinterable inorganic compound and ceramic silicone rubber are mixed in the adhesive to bond the mica paper layer and the reinforcing material layer of the mica tape, and then dried and cured at 150°C for 8 minutes; the mica tape is wound in two layers on the conductor as a fire-resistant Floor. The sinterable inorganic compounds used are aluminosilicates. The particle size of the aluminosilicate is 12 microns, and the amount of the aluminosilicate contained in each square meter of the outer surface of the wire and cable is 1 gram. The amount of vitrified silicone rubber contained in the outer surface of the wire and cable per square meter is 6 grams, and the mica paper layer is 130 grams per square meter of phlogopite mica paper. The reinforcing material layer is glass cloth of 40 grams per square meter.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a wire and cable. The wire and cable comprises a conductor, a flame-retardant layer and a sheath, wherein inorganic compounds capable of being sintered and ceramic silicone rubber are mixed in any layer outside the conductor. Under the conditions of flames, the inorganic compounds capable of being sintered and contained in the wire and cable can be sintered into a compact sintering body independently or together with mica paper, the sintering body has good insulation performance, hardness and water prevention performance, and therefore the wire and cable can be resistant to water spray and impact. Fire resistance of the wire and cable is obviously improved due to the added ceramic silicone rubber. Meanwhile, due to the synergistic effect between the inorganic compounds and the ceramic silicone rubber which cooperate with each other, the wire and cable has good fire resistance and insulation performance, and further has good mechanical performance such as wear resistance, and good appearance.

Description

technical field [0001] The invention relates to a wire and cable. Background technique [0002] Fire-resistant wire and cable is a cable that can still maintain normal operation for a certain period of time when it is on fire. It has been widely used, and fire-resistant wires and cables are indispensable in the fire-fighting and emergency power supplies of large shopping malls, high-rise buildings, subways, ships, aviation, petroleum, and chemical companies. [0003] The difference between fire-resistant wire and cable and fire-resistant cable (or called mineral cable, Mi-type cable) is that its insulation and sheath are organic resins, so its fire-resistant performance mainly depends on the fire-resistant layer in its structure. The refractory layer is mainly composed of refractory mica tape. [0004] The traditional fire-resistant mica tape is made by bonding a certain thickness of mica paper and reinforcing materials with a high-temperature-resistant adhesive. The main...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/02H01B7/29H01B7/295H01B7/18H01B7/28
Inventor 秦天庆徐佳林
Owner 江苏宏基环电股份有限公司