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A high temperature resistant bus duct under high temperature environment

A high-temperature environment and high-temperature-resistant technology, applied in the field of busway, can solve the problems of poor high-temperature resistance of insulating coatings, inability to use places with high temperatures, and damage to the insulation of current-carrying conductors, so as to improve insulation performance and high-temperature resistance Good performance, safe use, and good mechanical strength

Active Publication Date: 2018-07-27
JIANGSU JIANGCHENG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional busway includes a shell and a current-carrying conductor, and the current-carrying conductor is installed in the shell. In order to ensure the insulation of the busway, the distance between adjacent current-carrying conductors is relatively large, and the insulation is achieved by air, but the operation process of the busway It will generate a lot of heat in the air, which will easily break down the air and destroy the insulation between the current-carrying conductors; Outer cladding insulating layer, the insulating material or insulating layer in the prior art is usually a ceramic coating or vulcanized silicon rubber layer, although the busway of this structure improves the insulating performance of the busbar, but due to the Poor high temperature resistance, can not be used in places with high temperature

Method used

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  • A high temperature resistant bus duct under high temperature environment

Examples

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Effect test

Embodiment 1

[0025] A high temperature resistant busbar in a high temperature environment. Firstly, 70 parts of polyimide and 40 parts of polyamide-imide resin are heated to 120°C for 5 hours under a vacuum of 0.05Mpa, and then 10 parts of silica and paraffin wax Put 5 parts of oil, 5 parts of basic filler and 20 parts of magnesium hydroxide into the reaction kettle of dehydrated polyimide and polyamide-imide resin; then heat to 75°C and keep the temperature for 3 hours; then break the vacuum , And then vacuum degassing. Finally, pour the above-mentioned insulating material into the mold with the copper bar, then vacuumize, remove the bubbles, solidify and release heat to form an insulating layer, and then remove the mold after cooling. The alkaline filler is composed of aluminum silicate, calcium silicate and The composition of ethanol, aluminum silicate: calcium silicate: ethanol is 3:2:0.5, calculated by mass ratio.

Embodiment 2

[0027] A high temperature resistant bus bar in a high temperature environment. First, 75 parts of polyimide and 40 parts of polyamide-imide resin are heated to 120°C for 5 hours under a vacuum of 0.05Mpa, and then 15 parts of silica and paraffin wax Put 5 parts of oil, 10 parts of alkaline fillers, and 20 parts of magnesium hydroxide into the reaction kettle of dehydrated polyimide and polyamide-imide resin; then heat to 75°C and keep holding for 3 hours; then break Vacuum, then vacuum degassing. Finally, the above-mentioned insulating material is poured into a mold with a copper bar, and then vacuumed to remove air bubbles, solidify and release heat to form an insulating layer, and then remove the mold after cooling. The alkaline filler is composed of aluminum silicate, calcium silicate and ethanol, and the ratio of aluminum silicate: calcium silicate: ethanol is 3:2:0.5, calculated by mass ratio.

Embodiment 3

[0029] A high temperature resistant bus bar in a high temperature environment. First, 85 parts of polyimide and 45 parts of polyamide-imide resin are heated to 120°C for 5 hours under a vacuum of 0.05Mpa, and then 18 parts of silica and paraffin wax Put 6 parts of oil, 15 parts of alkaline filler, and 25 parts of magnesium hydroxide into the reaction kettle of dehydrated polyimide and polyamide-imide resin; then heat to 75°C and keep the temperature for 3 hours; then break Vacuum, then vacuum degassing. Finally, the above-mentioned insulating material is poured into a mold with a copper bar, and then vacuumed to remove air bubbles, solidify and release heat to form an insulating layer, and then remove the mold after cooling. The alkaline filler is composed of aluminum silicate, calcium silicate and ethanol, and the ratio of aluminum silicate: calcium silicate: ethanol is 3:2:0.5, calculated by mass ratio.

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Abstract

The invention discloses a high-temperature-resistant busway in a high-temperature environment, which includes a shell and a plurality of current-carrying conductors, and an insulating layer is arranged between the adjacent current-carrying conductors, and the insulating layer is made of polyimide, two Silicon oxide, basic filler, magnesium hydroxide, polyamideimide resin and paraffin oil, the present invention is owing to be provided with insulating layer between current-carrying conductor, and insulating layer is made of polyimide, silicon dioxide, basic filler , magnesium hydroxide, polyamide-imide resin, and paraffin oil, through the synergistic effect, the high temperature resistance of the insulating layer can reach about 800 ° C, and the insulation performance is good at 400 ° C. Therefore, the insulation performance of the bus duct is greatly improved. High temperature resistance, safer to use; in addition, the insulation layer has good mechanical strength, at 410°C, its tensile strength is 95MPa, and its bending strength is 157MPa.

Description

Technical field [0001] The invention relates to a busway, which belongs to the technical field of power transmission equipment. Background technique [0002] With the emergence of modern engineering facilities and equipment, the power consumption of all walks of life has increased rapidly, especially the emergence of numerous high-rise buildings and large workshops. The traditional cables used as transmission conductors can no longer meet the requirements in large current transmission systems. The parallel use of multiple cables has brought a lot of inconvenience to the on-site installation and construction connection. The bus duct came into being as a new type of distribution wire. The traditional busway includes a shell and a current-carrying conductor. The current-carrying conductor is installed in the shell. In order to ensure the insulation of the busway, the distance between adjacent current-carrying conductors is relatively large. The insulation is achieved by air, but th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G5/06C09D179/08C09D7/61C09D5/25
Inventor 解良洪
Owner JIANGSU JIANGCHENG ELECTRIC