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Control cable of efficient intrinsic safety detecting instrument

An intrinsically safe, testing instrument technology, used in insulated cables, cables with double-stranded/quad-stranded, cables, etc., to achieve the effects of excellent material properties, high tensile strength, and excellent anti-electromagnetic interference performance

Inactive Publication Date: 2016-02-17
YANGZHOU SHUGUANG CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing high-efficiency intrinsically safe detection instrument control cables cannot meet the relevant requirements

Method used

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  • Control cable of efficient intrinsic safety detecting instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Insulation layer, including raw materials with the following weight components: 30kg polyolefin, 15kg organosilicon crosslinking agent, 15kg silicon dioxide, 11kg silicon hydroxide, 10kg magnesium hydroxide, 6kg iron oxide, 5kg barium sulfate, 5kg magnesium silicate, 3kg talcum powder, 3kg lubricant, 4kg antioxidant, 2kg compatibilizer and 1kg silicone leveling agent. Wherein, antioxidant is antioxidant 3114. The compatibilizer is ST-1 compatibilizer. The lubricant is paraffin.

[0026] Test Results:

[0027] Combustion or heating test: test the gas released, no toxic gas was found, and it has the characteristics of low smoke, non-toxic, halogen-free and flame retardant;

[0028] It can overload 3 times under the rated voltage and still play the role of insulation;

[0029] The tensile strength is high, up to 18MPA, and after stretching, it has excellent elongation recovery.

Embodiment 2

[0031] Insulation layer, including raw materials with the following weight components: 40kg polyolefin, 20kg organosilicon crosslinking agent, 20kg silicon dioxide, 16kg silicon hydroxide, 15kg magnesium hydroxide, 8kg iron oxide, 7kg barium sulfate, 6kg magnesium silicate, 4kg talcum powder, 4kg lubricant, 5kg antioxidant, 3kg compatibilizer and 2kg silicone leveling agent. Among them, the antioxidant is antioxidant 168. The compatibilizer is ST-1 compatibilizer. The lubricant is paraffin.

[0032] Test Results:

[0033] Combustion or heating test: test the gas released, no toxic gas was found, and it has the characteristics of low smoke, non-toxic, halogen-free and flame retardant;

[0034] It can overload 4 times under the rated voltage and still play the role of insulation;

[0035] The tensile strength is high, up to 16MPA, and after stretching, it has excellent elongation recovery.

Embodiment 3

[0037] Insulation layer, including raw materials with the following weight components: 35kg polyolefin, 17kg organosilicon crosslinking agent, 18kg silicon dioxide, 13kg silicon hydroxide, 12kg magnesium hydroxide, 7kg iron oxide, 6kg barium sulfate, 5kg magnesium silicate, 3kg talcum powder, 3kg lubricant, 4kg antioxidant, 2kg compatibilizer and 1kg silicone leveling agent. Wherein, antioxidant is antioxidant 3114. The compatibilizer is ST-1 compatibilizer. The lubricant is paraffin.

[0038] Test Results:

[0039] Combustion or heating test: test the gas released, no toxic gas was found, and it has the characteristics of low smoke, non-toxic, halogen-free and flame retardant;

[0040] It can overload 5.5 times under the rated voltage and still play the role of insulation;

[0041] The tensile strength is high, up to 19MPA, and after stretching, it has excellent elongation recovery.

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Abstract

The invention discloses a control cable of an efficient intrinsic safety detecting instrument. The control cable comprises a plurality of conductor insulation units, wherein each conductor insulation unit comprises a conductor, an insulation layer, a subentry shielding layer and a wrapping layer, the insulation layer is extruded on the conductor, the outer side of the insulation layer is sequentially provided with the subentry shielding layer and the wrapping layer, a plurality of drainage wires are arranged between the insulation layer and the subentry shielding layer, a packing layer is arranged between the conductor insulation units, and the outer side of the packing layer is sequentially provided with a wrapping tape layer, a shielding layer and an outer sheath layer. The material of the insulation layers of the control cable has excellent performance and also has characteristics of low smoke, no toxicity, no halogen and flame retardance; meanwhile, the tensile strength of the material is high, therefore, the material also has excellent anti-electromagnetic interference performance when the material bears mechanical external force; in addition, the material is suitable for the insulation layers of various wires and cables. Moreover, the control cable has excellent flame retarding performance and intrinsic safety performance.

Description

technical field [0001] The invention belongs to the field of cables, and relates to a high-efficiency intrinsically safe detection instrument control cable. Background technique [0002] Intrinsically safe cables are used as power supply and information transmission equipment for communication, monitoring, detection, alarm and control systems, and are mainly used in environments containing explosive gas mixtures such as petroleum, chemical, textile and coal mines. The intrinsically safe power supply circuit must meet the requirements of the intrinsically safe circuit standard. The intrinsically safe circuit means that any electric spark or any thermal effect generated under the conditions specified in the standard (including normal operation and fault conditions specified in the standard) cannot ignite the specified gas environment. circuit. Its characteristics are: the inside of the power circuit and the lead wires are safe no matter it is in normal operation or in a fault...

Claims

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Application Information

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IPC IPC(8): H01B11/08H01B7/02H01B7/17H01B7/295H01B7/18
Inventor 齐宏文姚恒斌卢玉芝陈明华
Owner YANGZHOU SHUGUANG CABLE
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