Method for measuring aging depth rang of composite insulator umbrella skirt material

A composite insulator, depth range technology, applied in the direction of weighing by removing certain components, can solve the problems of inability to evaluate the aging depth range of composite insulator shed materials, and the inability to accurately and objectively reflect the aging of insulator sheds, etc. Achieve the effect of quickly judging the aging trend and easy operation

Inactive Publication Date: 2017-05-10
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing research on the aging of composite insulator sheds, it is generally only possible to make a certain subjective description of the macroscopic characteristics of the aging of the outermost surface of the sample, but it cannot accurately and objectively reflect the aging of the insulator shed from the surface to the inside.
Moreover, many related methods before this are only applicable to the detection of new samples from the factory, and cannot objectively and accurately evaluate the aging depth range of composite insulator shed materials in actual operation.

Method used

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  • Method for measuring aging depth rang of composite insulator umbrella skirt material
  • Method for measuring aging depth rang of composite insulator umbrella skirt material
  • Method for measuring aging depth rang of composite insulator umbrella skirt material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take line A to run the composite insulator shed, whose main component content is unknown, and measure the aging depth range of the composite insulator shed material, including the following steps:

[0033] (1) Cut a piece of sample from the shed of the running composite insulator on line A, clean the dirty surface with absolute ethanol and dry it in a drying oven for 12 hours before use.

[0034] (2) Use the YD-2508A rotary microtome to slice the samples from the upper surface and sort and number them sequentially. In order to eliminate the influence of contamination on the experiment, remove the first slice, and then make two sets of slices to obtain 5 sets of slices in turn. sample.

[0035] (3) Place 5 groups of sliced ​​samples in an electric drying oven, dry them at 30°C for 12 hours, cool to room temperature and transfer them to a drying cabinet; take out the samples one by one, cut them into tiny pieces and Put it into the German Netzsch STA449 comprehensive the...

Embodiment 2

[0044] The shed of the composite insulator with broken strings running on line B is taken. The shed has obvious signs of ablation near the broken part, and the aging is relatively serious; the content of its main components is unknown. The aging depth range of the silicone rubber material in the shed is measured, including the following step:

[0045] (1) Cut a piece of sample from the composite insulator shed of broken strings running on line B, clean the dirty surface with absolute ethanol, and dry it in a drying oven for 12 hours before use.

[0046] (2) Use the YD-2508A rotary microtome to slice the samples from the upper surface and sort and number them sequentially. In order to eliminate the influence of contamination on the experiment, remove the first slice, and then make two sets of slices to obtain 5 sets of slices in turn. sample.

[0047] (3) Place 5 groups of sliced ​​samples in an electric drying oven, dry them at 30°C for 12 hours, cool to room temperature and ...

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Abstract

The invention belongs to the field of electric power application engineering and particularly relates to a method for measuring an aging depth rang of a composite insulator umbrella skirt material. According to the method for measuring the aging depth rang of the composite insulator umbrella skirt material, the specific operation process and a calculation method are given, the operation is simple and convenient, and the target of quickly determining the aging trend of the umbrella skirt silicone rubber material and accurately measuring the aging depth rang thereof is achieved. According to the method, by adopting a slicing method and by combination with thermogravimetic analysis, the relative percentages for representing main ingredients of the umbrella skirt material at different depths are calculated, and the aging depth rang of the umbrella skirt material is evaluated objectively and accurately.

Description

technical field [0001] The invention belongs to the field of electric power application engineering, and in particular relates to a method for measuring the aging depth range of shed materials of composite insulators. Background technique [0002] Silicone rubber is the main material of the shed part of the composite insulator. The main components in silicone rubber include: methyl vinyl silicone rubber (PDMS), white carbon black (SiO2) and aluminum hydroxide (ATH). Relatively small amounts of other organic (vulcanizing agents, coupling agents, various silicone oils, etc.) or inorganic (zinc oxide, inorganic pigments, etc.) components. During long-term operation, silicone rubber composite insulators are susceptible to aging due to factors such as heat, force, light, and electricity. This aging is a process from the outside to the inside. In the aging part, the organic filler of the material itself will gradually decompose. Therefore, its application performance is greatly r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 彭向阳黄振余欣方鹏飞罗义陈龙
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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