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Lightning arrester insulating protection sleeve and preparation method thereof

The invention relates to a technology for insulating protective sheath and arrester, which is applied to the field of insulating protective sheath of arrester and its preparation, which can solve the problems of easy aging, corrosion, affecting protection performance, etc., and achieve the effects of improving aging resistance, improving quality, and promoting movement.

Inactive Publication Date: 2020-01-24
戴文忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The protective cover can effectively protect the arrester, but because it is made of ordinary silicone rubber, it is easy to age and corrode when exposed to outdoor conditions for a long time, which will affect the protective performance.

Method used

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  • Lightning arrester insulating protection sleeve and preparation method thereof
  • Lightning arrester insulating protection sleeve and preparation method thereof
  • Lightning arrester insulating protection sleeve and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0054] A method for preparing an insulating protective cover for a lightning arrester, comprising the steps of:

[0055] The first step, mixing

[0056] Mix the natural rubber in the internal mixer for 90s-100s under the condition of initial temperature 60℃ and rotating speed 80r / min, add stearic acid, zinc oxide and anti-aging agent, continue mixing for 60s-65s, then add modified Mix carbon black for 3 minutes, then add sulfur and vulcanization accelerator and mix for 90s-100s. After degluing, thin pass on the open mill, remove the sheet, and park for 2 hours;

[0057] The second step, vulcanization

[0058] Vulcanize with a flat vulcanizer, and the vulcanization condition is 145°C×t 90 ;

[0059] Described natural rubber is made by following steps:

[0060] 1) Take fresh natural latex, adjust the latex concentration to 26%, add acetic acid (as an initiator), mix evenly, put it in a vacuum drying oven to evacuate to -0.96MPa, take it out after holding the pressure for 110...

Embodiment 1

[0071] An insulating protective cover for a lightning arrester, made of the following raw materials in parts by weight: 80 parts of natural rubber, 36 parts of modified carbon black, 4 parts of zinc oxide, 1.6 parts of stearic acid, 1.2 parts of sulfur, 0.5 parts of vulcanization accelerator, and anti-aging agent 0.8 copies;

[0072] A method for preparing an insulating protective cover for a lightning arrester, comprising the steps of:

[0073] The first step, mixing

[0074]Mix the natural rubber in the internal mixer for 90s at the initial temperature of 60°C and the speed of 80r / min, add stearic acid, zinc oxide and anti-aging agent, continue mixing for 60s, and then add modified carbon black for mixing 3min, then add sulfur and vulcanization accelerator and knead for 90s, after degluing, thin pass and unload on the open mill, and park for 2h;

[0075] The second step, vulcanization

[0076] Vulcanize with a flat vulcanizer, and the vulcanization condition is 145°C×t 9...

Embodiment 2

[0078] An insulating protective cover for a lightning arrester, made of the following raw materials in parts by weight: 90 parts of natural rubber, 40 parts of modified carbon black, 4.5 parts of zinc oxide, 1.8 parts of stearic acid, 1.8 parts of sulfur, 0.75 parts of vulcanization accelerator, and anti-aging agent 0.9 copies;

[0079] A method for preparing an insulating protective cover for a lightning arrester, comprising the steps of:

[0080] The first step, mixing

[0081] Mix the natural rubber in an internal mixer for 95s at the initial temperature of 60°C and the speed of 80r / min, add stearic acid, zinc oxide and anti-aging agent, continue mixing for 63s, and then add modified carbon black for mixing 3min, then add sulfur and vulcanization accelerator and mix for 95s, after degluing, thin pass on the open mill, remove the tablet, and park for 2h;

[0082] The second step, vulcanization

[0083] Vulcanize with a flat vulcanizer, and the vulcanization condition is 1...

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Abstract

The invention discloses a lightning arrester insulating protection sleeve, which is prepared from the following raw materials by weight: 80-100 parts of a natural rubber, 36-45 parts of modified carbon black, 4-5 parts of zinc oxide, 1.6-2 parts of stearic acid, 1.2-2.4 parts of sulfur, 0.5-1 part of a vulcanization accelerator and 0.8-1 part of an anti-aging agent. The invention further disclosesa preparation method of the insulating protection sleeve. According to the invention, the natural rubber is used as the matrix material of the protection sleeve and is processed, so that the mechanical property and the aging resistance of the natural rubber can be effectively improved; the rubber is reinforced by adopting the modified carbon black, so that the mechanical property of the protection sleeve can be improved; and by controlling the ratio of the sulfur to the vulcanization accelerator, the fatigue life of the protection sleeve is prolonged, so that the insulating protection sleevewith good mechanical property and strong aging resistance is obtained, is suitable for protecting lightning arresters, can improve the use safety of lightning arresters, has long service life, and canimprove the use value.

Description

technical field [0001] The invention belongs to the technical field of lightning arrester protection, and in particular relates to a lightning arrester insulating protective cover and a preparation method thereof. Background technique [0002] In modern buildings, the arrester is a common device, and it is also called a voltage limiter, which is a device that can release overvoltage energy and limit the magnitude of overvoltage. When the overvoltage occurs, the voltage between the two terminals of the arrester does not exceed the specified value, so that the electrical equipment will not be damaged by the overvoltage; after the overvoltage acts, the system can quickly return to normal state; the arrester is to protect the electrical equipment from atmospheric overvoltage Electrical appliances; lightning arresters are equipment used to protect equipment in substations from lightning shock waves. When the lightning shock wave introduced into the substation along the line exce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K13/06C08K9/04C08K3/04C08K3/22C08K5/09C08K3/06B29C35/02B29B7/74
CPCB29B7/7495B29C35/02C08K3/04C08K3/22C08K5/09C08K9/04C08K13/06C08K2003/2296C08L7/00
Inventor 戴文忠
Owner 戴文忠
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