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A high reliability power cable

A power cable, reliability technology, applied in the direction of power cables with shielding layer/conductive layer, insulated cables, cables, etc., can solve the problems of affecting processability, poor adhesion and self-adhesiveness, poor tear resistance, etc. , to achieve good tear strength, good processing performance, good electrical insulation performance

Active Publication Date: 2017-09-01
ANHUI ELECTRIC POWER FUYANG POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

) Compared with XLPE and PVC wires, EPDM rubber has poor tear resistance
And because it is easy to bloom, the adhesion and self-adhesiveness are poor, which affects the subsequent processability

Method used

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  • A high reliability power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: as figure 1 As shown, it includes multi-strand tinned annealed copper stranded conductor 1, Teflon tape wrapping layer 2 wrapped around multi-strand tinned annealed copper stranded conductor 1, and extruded Teflon tape wrapping layer 2 The outer rubber insulation layer 3, the aluminum-plastic composite tape shielding layer 4 wrapped around the rubber insulation layer 3, the 3M 8882 elastic insulating waterproof resin layer 5 outside the aluminum-plastic composite tape shielding layer 4, wrapped in 3M 8882 elastic insulation The PET braided mesh pipe refractory layer 6 outside the waterproof resin layer 5 is extruded and wrapped with a rubber outer sheath 7 outside the PET braided mesh pipe fireproof layer 6 .

[0017] The rubber material used for the rubber insulating layer and the rubber outer sheath of the high-reliability power cable is made through the following steps:

[0018] (1) 2.2 kg of nano-yttrium aluminate with an average particle size of 40nm...

Embodiment 2

[0022] Embodiment 2: The structure of a high-reliability power cable is the same as in Embodiment 1, except that the rubber material used for the rubber insulating layer and the rubber outer sheath is made through the following steps:

[0023] (1) 2 kg of nano-yttrium aluminate with an average particle size of 40 nm, 3 kg of nano-lanthanum trioxide with an average particle size of 50 nm, 5 kg of isopropanol, Nanjing Quanxi Chemical Co., Ltd. (QX-1613) hexadecyl trimethoxy 1.5 kg of silane and 4 kg of diethylene glycol monobutyl ether were mixed with a magnetic stirrer, stirred for 5 minutes, and then ultrasonically oscillated at 60-70°C for 150 minutes;

[0024] (2) Add 2 kg of secondary alcohol polyoxyethylene ether (S-50) to 50 times the weight of pure water and stir evenly, then add 8 kg of hydroxyapatite with an average particle size of 20um and silicon dioxide 28 with an average particle size of 2um 20 kg of dolomite powder with an average particle size of 5um and 8 kg of...

Embodiment 3

[0027] Embodiment 3: The structure of the high-reliability power cable is the same as that of Embodiment 1, except that the rubber material used for the rubber insulating layer and the rubber outer sheath is made by the following steps:

[0028] (1) 2.5 kg of nanometer yttrium aluminate with an average particle size of 40 nm, 3.5 kg of nanometer lanthanum trioxide with an average particle size of 50 nm, 6 kg of isopropanol, Nanjing Quanxi Chemical Co., Ltd. (QX-1613) hexadecyltrimethoxy Mix 2 kg of base silane and 5 kg of diethylene glycol monobutyl ether with a magnetic stirrer, stir for 5 minutes, and then ultrasonically vibrate for 150 minutes at 60-70 °C;

[0029] (2) Add 2.5 kg of secondary alcohol polyoxyethylene ether (S-50) to 50 times the weight of pure water, then add 10 kg of hydroxyapatite with an average particle size of 20 μm, 32 kg of silica with an average particle size of 2 μm, 22 kg of dolomite powder with an average particle size of 5um and 10 kg of magnesiu...

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Abstract

The high-reliability power cable of the present invention comprises a conductor, a wrapping layer wrapped outside the conductor, an insulating layer extruded outside the wrapping layer, a shielding layer wrapped outside the insulating layer, coated A waterproof layer covering the shielding layer, a refractory layer wrapped outside the waterproof layer, and an outer sheath extruded and wrapped outside the refractory layer. The high-reliability power cable of the present invention has the characteristics of high temperature resistance, fire and flame retardancy, waterproof and oil resistance, aging resistance and long service life. At the same time, it also has good physical and mechanical properties, tear strength and processing properties. It can be used in high-rise buildings, airports, docks, underground railways and other places to protect fire-fighting power supplies such as fire-fighting water pumps, fire-fighting elevators, local lighting, emergency evacuation instructions, security monitoring, fire prevention and smoke exhaust systems, and self-provided power supplies in case of fire. And important equipment is running continuously. It is suitable for water treatment equipment such as submersible pumps, coal mines, underwater operations, and underwater scene lights.

Description

technical field [0001] The invention relates to a cable, in particular to a high-reliability power cable. Background technique [0002] Power cables are cables used to transmit and distribute electrical energy. It is often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute high-power electric energy in the main lines of the power system, including 1-500KV and above various voltage levels and various insulated power cables. The wire and cable industry is the second largest industry in China after the automobile industry, and the product variety satisfaction rate and domestic market share both exceed 90%. Worldwide, China's wire and cable output has surpassed that of the United States, becoming the world's la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/02H01B7/02H01B7/17H01B7/282H01B7/29C08L23/16C08L23/08C08L71/02C08K13/06C08K9/06C08K3/24C08K3/22C08K3/36
CPCY02A30/14
Inventor 崔保艳曹清华胡晓侠安玲胡强刘晓静王永辉王冬冬刘吉刚朱新菊王真云
Owner ANHUI ELECTRIC POWER FUYANG POWER SUPPLY
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