Insulating spider resistant to electrical carbon mark

A technology of electric carbon trace and insulating support, which is applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of poor electric resistance carbon trace insulation, cracked surface of injection support sleeves, grains or bubbles, etc., to achieve insulation The effect is good, the appearance quality is good, and the effect of increasing the safety distance

Inactive Publication Date: 2014-01-22
吉林市吉福新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual production process, there are still some technical problems that are fundamentally difficult to overcome. The main problems are that the injection sleeve is cracked and the surface is not smooth, there are serious grains or bubbles, and the injection port is burnt, expanded and retracted. There are also cracks during installation. So far, the support sleeves of the prior art have not yet solved the fundamental problem of the poor insulation of the electric resistance carbon marks, and there are no literature reports and practical applications of the same and similar support sleeves as the content of the present invention.

Method used

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  • Insulating spider resistant to electrical carbon mark
  • Insulating spider resistant to electrical carbon mark

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Example 1: The insulation support sleeve for electric carbon marks contains: 5 kg of low-density polyethylene, 8 kg of polyethylene-vinyl acetate, 0.10 kg of antioxidant 1010, and the flame retardant is melamine cyanurate and melamine isocyanate A total of 2.5 kg of cyanurate, including 1.5 kg of melamine cyanurate, 1 kg of melamine isocyanurate, 0.5 kg of polymer wax, 7 kg of magnesium hydroxide micropowder, and 0.5 kg of color masterbatch or iron oxide red.

Embodiment 2

[0020] Example 2: The insulating support sleeve of electric carbon trace resistance contains: 8 kg of low-density polyethylene, 10 kg of polyethylene-vinyl acetate, 0.15 kg of antioxidant 1010, melamine cyanurate and melamine isocyanurate A total of 5kg, polymer wax 0.75kg, zinc stearate 0.1kg, magnesium hydroxide micropowder 3.5kg, color masterbatch or iron oxide red 0.5kg.

Embodiment 3

[0021] Example 3: The insulating support sleeve for electric carbon traces contains: 10 kg of low-density polyethylene, 12 kg of polyethylene-vinyl acetate, 0.20 kg of antioxidant 1010, and melamine cyanurate and melamine isocyanate as flame retardants. 4 kg of cyanurate each, 8 kg in total, 1 kg of polymer wax, 0.2 kg of zinc stearate, 0.6 kg of color masterbatch or iron oxide red.

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Abstract

The invention relates to an insulating spider resistant to electrical carbon mark in power cable thermal shrinkage terminal parts and components. The insulating spider is characterized by consisting of the following raw materials: low-density polyethylene or a POE (polyolefin elastomer), polyethylene-vinyl acetate or polyethylene-ethyl acrylate, an antioxidant 1010, a flame retardant, high-molecular wax and zinc stearate, wherein the flame retardant is melamine cyanurate and / or melamine isocyanuric acid salt, and also containing any one of aluminum hydroxide micro powder, magnesium hydroxide micro powder, iron oxide powder, light calcium carbonate, kaoline and talc powder, as well as color masterbatch or dye. The insulating spider has the advantages of good miscibility, easy molding, good appearance quality, high arc resistance and creepage resistance, good insulating effect, long service life and the like.

Description

technical field [0001] The invention relates to the improvement of the support sleeve in the power cable heat-shrinkable terminal fitting, in particular, it is an insulating support sleeve resistant to electric carbon marks. Background technique [0002] After the heat-shrinkable terminal of the power cable is installed, the insulation distance from the terminal to the ground part is an important factor for the safety of this type of product in operation. Most of the support sleeves used in the existing heat-shrinkable power cable terminal accessories only play a supporting role in separating the cable cores. The existing supporting sleeve is composed of the following raw materials, polyethylene-vinyl acetate, polyethylene, acetylene carbon black, zinc stearate, anti-aging agent RD (that is, 2,2,4-trimethyl-1,2-di Hydroquinoline polymers) and polymer waxes. Because the formula does not contain materials that can resist electric tracking, and the formula contains a large am...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08K5/098C08K5/3492C08K3/22C08K3/26C08K3/34H01B3/44
Inventor 严晓华赵静赵丹阳范立军姜瑞
Owner 吉林市吉福新材料有限责任公司
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