Method for evaluating service life of power grounding grid

A grounding grid and life-span technology, applied in the field of power systems, can solve problems such as difficult to judge corrosion status and corrosion

Inactive Publication Date: 2014-10-01
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to propose an evaluation method for the service life of the electric grounding grid to comprehensively, objectively and qualitatively judge the use of the grounding grid and reflect the service life of the grounding grid. , to provide a reference for grounding grid corrosion protection and regular maintenance

Method used

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  • Method for evaluating service life of power grounding grid
  • Method for evaluating service life of power grounding grid
  • Method for evaluating service life of power grounding grid

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Embodiment Construction

[0028] The present invention will be described below in conjunction with the accompanying drawings.

[0029] According to an embodiment of the present invention, such as figure 1 As shown, a method for evaluating the service life of the power grounding grid is provided.

[0030] The purpose of the present invention is to provide a method for evaluating the service life of the electric grounding grid. Firstly, the key influencing factors affecting the service life of the grounding grid are screened, and then the weights are assigned to the screened factors, and finally the actual parameters and design life of the grounding grid are combined. Service life calculation and evaluation.

[0031] Concrete steps of the present invention include:

[0032] (1) Screen the key factors affecting the service life of the power grounding grid

[0033] (2) Weight assignment according to the degree of influence of key factors on the life of the grounding grid

[0034] (3) Objectively calcul...

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Abstract

The invention discloses a method for evaluating the service life of a power grounding grid. The method mainly comprises the following steps: screening the key affecting factors affecting the service life of the grounding grid; evaluating the weights of the screened factors; and calculating and evaluating the practical service life of the power grounding grid to be measured according to the basic parameters and designed life of the grounding grid. The method for evaluating the service life of the power grounding grid has the effects of being capable of comprehensively, objectively and qualitatively judging the service conditions of the power grounding grid, reflecting the service life of the grounding grid and providing reference for corrosion prevention and periodic maintenance of the grounding grid.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a method for evaluating the service life of a power grounding grid. Background technique [0002] The soil itself is a multivariate and complex system. There are many physical and chemical factors affecting metal corrosion, and the regularity is also different, which brings a lot of uncertainty to the evaluation of soil corrosion. [0003] At present, there is no relevant report on the service life evaluation of the power grounding grid in China. [0004] There are many factors that affect the service life of the grounding grid. The corrosion of the soil (including moisture, corrosive ions, pH, salt content, uniformity, etc.) is an important factor affecting the service life of the grounding grid; Analysis of construction, installation, operation and maintenance, etc., soil porosity (whether the soil is sieved and compacted), clay content, groundwater impact (relationship ...

Claims

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Application Information

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IPC IPC(8): G01N17/00G06F19/00
Inventor 李小娟杨洁周志军马超韩旭杉姜梅马少谦李炜王政宏张鹏高世刚何巍
Owner STATE GRID CORP OF CHINA
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