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Composite cable for signal and digital network transmission

A digital network and integrated cable technology, applied in insulated cables, cables with double-stranded/quad-stranded, cables, etc., can solve the problems of single signal transmission, not resistant to environmental cracking, etc., to save line space , Avoid secondary wiring, save the effect of construction

Pending Publication Date: 2021-06-15
LUNENG TAISHAN QUFU CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the disadvantages of current low-smoke and halogen-free signal transmission cables that are not resistant to environmental cracking and single signal transmission, and provide a signal control cable that is resistant to tension, lateral pressure, bending, cracking, and electromagnetic interference. A safe and environment-friendly flame-retardant integrated cable integrating digital network transmission

Method used

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  • Composite cable for signal and digital network transmission
  • Composite cable for signal and digital network transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1, weighing the raw materials of each component, the components are proportioned by mass percentage as follows: 20 parts of ethylene-vinyl acetate copolymer, 12 parts of polyester elastomer, 5 parts of chlorinated polyethylene, hydrogenated base oil 5 parts, 2 parts of maleic anhydride grafted polyolefin elastomer, 42 parts of halogen-free flame retardant, 8 parts of flame retardant, 0.5 part of alkyl siloxane, 1.5 parts of antioxidant, 4 parts of smoke suppressant, each The sum of the parts by mass of the components is 100 parts.

[0024] Step 2, mixing, put the raw materials of each component weighed in step 1 into an internal mixer, and the mixing temperature is 150-165°C, so that each component is mixed evenly to form a jelly.

[0025] Step 3, granulation, extruding and granulating the product kneaded in step 2. The temperature of each zone of the twin-screw extruder is 102-145° C. to obtain a finished halogen-free low-smoke flame-retardant elastomer outer shea...

Embodiment 2

[0028] Step 1, weighing each component raw material, its component ratio by mass percentage is: ethylene-vinyl acetate copolymer 15 parts, polyester elastomer 15 parts, chlorinated polyethylene 4 parts, hydrogenated base oil 5 parts , 2 parts of maleic anhydride grafted polyolefin elastomer, 45 parts of halogen-free flame retardant, 8 parts of flame retardant, 0.5 part of alkyl siloxane, 1.5 parts of antioxidant, 4 parts of smoke suppressant, each component The sum of the mass percentage parts is 100 parts. All the other steps are the same as in Example 1.

[0029] The test results of the main items of the halogen-free low-smoke flame-retardant elastomer outer sheath of the present invention are shown in Table 1. It can be seen from the table that the test results of the outer sheath in the application scheme of the present invention are very good and meet the requirements of this product. The environment-friendly requirements of low-smoke, halogen-free, flame-retardant, and ...

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Abstract

The invention relates to a composite cable for signal and digital network transmission. The composite cable comprises a copper conductor, a polyolefin insulator, a wrapping tape, a copper wire sub-shield, a flame-retardant isolating layer, a non-metal glass fiber reinforced plastic rod, a copper tape total shielding layer, a flame-retardant inner sheath, a double-steel-strip armor and a halogen-free low-smoke flame-retardant elastomer outer sheath, and is characterized in that two insulating wire cores are twisted into one group to form a twisted wire pair, one twisted wire pair and four twisted wire pairs are respectively and longitudinally wrapped with the wrapping tape and braided with the copper wire sub-shield, so that a signal control twisted basic unit group and a digital network four-pair basic unit group are manufactured; and the copper strip total shielding layer wraps the cable core, the flame-retardant inner sheath is extruded outside the copper strip total shielding layer, the double-steel-strip armor wraps the flame-retardant inner sheath, and the halogen-free low-smoke flame-retardant elastomer outer sheath is extruded outside the outermost layer. The composite cable for signal and digital network transmission has the advantages that signal control and digital network transmission are integrated, and the composite cable has the performance of electromagnetic radiation prevention, tension resistance, bending resistance, cracking resistance and side pressure resistance.

Description

technical field [0001] The invention relates to an integrated cable for signal and network, more specifically an integrated cable for signal and digital network transmission. Background technique [0002] At present, as power plants, wind farms and other power generation companies continue to improve signal control and digital network transmission, safe and efficient intelligent production, they have put forward higher intelligence and environmental protection requirements for various cables used, especially computer Cables for instrument signal control and information network transmission must ensure the safety, accuracy and convenience of data transmission, so as to ensure the efficient operation of the digital transmission and automation control systems of the entire power plant, wind farm and other power generation companies, and meet environmental protection requirements. The current low-smoke halogen-free flame-retardant cables still have the disadvantages of being rel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B11/06H01B7/295H01B7/20
CPCH01B7/20H01B7/295H01B11/06
Inventor 吴庆元贾金艳毛景杭杨蕊孔祥翠王春红翟广
Owner LUNENG TAISHAN QUFU CABLE CO LTD
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