CN109580464A - A method of detection evaluation grid equipment coating quality - Google Patents
A method of detection evaluation grid equipment coating quality Download PDFInfo
- Publication number
- CN109580464A CN109580464A CN201811401555.1A CN201811401555A CN109580464A CN 109580464 A CN109580464 A CN 109580464A CN 201811401555 A CN201811401555 A CN 201811401555A CN 109580464 A CN109580464 A CN 109580464A
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- CN
- China
- Prior art keywords
- grid equipment
- coating
- index
- service environment
- grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Abstract
The present invention relates to electric device maintenance technical fields, and in particular to a method of detection evaluation grid equipment coating quality.Invention increases coating qualities to evaluate key index: the corrosion class of grid equipment Service Environment, coating assessment index is determined according to grid equipment Service Environment, currently employed unified detection evaluation index is solved come the drawbacks of judging coating quality, power grid log equipment antiseptic property can be promoted using the present invention, reduce power networks risk.
Description
Technical field
The present invention relates to electric device maintenance technical fields, and in particular to a kind of detect evaluates grid equipment coating quality
Method.
Background technique
Coating is the purpose of coating once applies resulting solid-state continuous film, is to protect, insulate, decorate, usual root
The type and state that coating is determined according to the matrix of spraying, are now widely used in grid equipment anti-corrosion.Grid equipment coating performance is tested
Receipts standard only requires that detection project is coating layer thickness, and coating layer thickness is not treated with a certain discrimination according to corrosion class degree.This
Outside, it was also found that the component of anti-corrosion effect difference, coating impedance value are lower than 10 during actually detected test7Ohm, anti-corrosion effect
The good component of fruit, impedance value are higher than 109Ohm.This also result in seriously corroded regional power grid equipment put into operation 5~6 years it
Just start gradually to corrode afterwards, serious or even corrosion completely is corroded in part, brings great threat to power network safety operation.Cause
This, improves existing detection and evaluates coating quality method, increases coating quality evaluation key index, according to corrosion class degree into
Row is treated with a certain discrimination, very necessary.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of methods of detection evaluation grid equipment coating quality, specifically
Technical solution is as follows:
It is a kind of detection evaluation grid equipment coating quality method the following steps are included:
(1) each evaluation index of grid equipment coating is detected；The evaluation index includes 2 level-one evaluation indexes, tool
Body are as follows: grid equipment Service Environment index, coating performance evaluation index；The grid equipment Service Environment index includes 4 two
Grade index, specifically: atmosphere humidity time, dust in air content, chlorate in content of sulphur compounds and air in air
Content；The coating performance evaluation index includes 5 two-level index, specifically: appearance, coating foaming grade, thickness, attachment
Power and impedance；
(2) corrosion class of grid equipment Service Environment is determined according to the detection data of grid equipment Service Environment index；
(3) according to the corrosion class of determining grid equipment Service Environment, and the coating performance evaluation index of detection
Each two-level appraisement index is as a result, determine whether the quality of grid equipment coating is qualified, as long as coating performance evaluation index is appointed
The testing result of what two-level appraisement index requires not being inconsistent with the corrosion class of corresponding grid equipment Service Environment, sentences
Determine the off quality of corresponding grid equipment coating.
Preferably, data needed for the Service Environment index pass through to monitor to be on active service regional 3~12 months to obtain or utilize and be somebody's turn to do
The existing corrosion-monitoring data in area.
Preferably, the corrosion class of the grid equipment Service Environment is C1, C2, C3, C4, C5.
Preferably, under the correspondence corrosion class of grid equipment Service Environment grid equipment coating resistance requirements such as following table
Shown in 1.
Grid equipment coating bubbles class requirement under each corrosion class of table 1
Preferably, the thickness requirement of the grid equipment coating under the correspondence corrosion class of grid equipment Service Environment is such as
Shown in the following table 2.
Grid equipment coating thickness requirement detail list under each corrosion class of table 2 (unit: μm)
Preferably, under the correspondence corrosion class of grid equipment Service Environment grid equipment coating resistance requirements such as following table
Shown in 3.
Grid equipment coating impedance demand items table under each corrosion class of table 3
| Corrosion class | C1 | C2 | C3 | C4 | C5 |
| Impedance minimum (Ω cm2) | 108 | 108 | 108 | 109 | 109 |
Preferably, the attachment force request of the grid equipment coating is no less than 5MPa.
The invention has the benefit that invention increases coating qualities to evaluate key index: grid equipment Service Environment
Corrosion class, coating assessment index is determined according to grid equipment Service Environment, solves currently employed unified detection evaluation
Index the drawbacks of judging coating quality, can promote power grid log equipment antiseptic property using the present invention, reduce power grid fortune
Row risk.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
In order to better understand the present invention, the present invention will be further explained below with reference to the attached drawings and specific examples:
As shown in Figure 1, it is a kind of detection evaluation grid equipment coating quality method the following steps are included:
It is a kind of detection evaluation grid equipment coating quality method the following steps are included:
(1) each evaluation index of grid equipment coating is detected；Evaluation index includes 2 level-one evaluation indexes, specifically:
Grid equipment Service Environment index, coating performance evaluation index；Grid equipment Service Environment index includes 4 two-level index, tool
Body are as follows: atmosphere humidity time, dust in air content, chlorination salt content in content of sulphur compounds and air in air；Coating
Performance Evaluating Indexes include 5 two-level index, specifically: appearance, coating foaming grade, thickness, adhesive force and impedance.It is on active service
Data needed for environmental index are on active service regional 3~12 months by monitoring and obtain or utilize the existing corrosion-monitoring data in this area.
Wherein, the appearance requirement of grid equipment coating are as follows: appearance, which detects surface, must not miss painting, holiday, and surfacing, uniformity,
Coating is without obvious sagging, wrinkle, pin hole, crackle and returns rust phenomenon.Coating bubbles grade uses visual detection, can be by 10 times
Magnifying glass and ruler measurement, it is desirable that as shown in table 2.Coating layer thickness uses metal coating thickness measuring according to GB/T4956 standard requirements
Instrument is detected, and specific requirement is as shown in table 3.Adhesive force test is detected using adhesion-force tester, it is desirable that is no less than
5MPa.Impedance measurement is detected using impedance analyzer, and specific requirement is as shown in table 4 below.
(2) corrosion class of grid equipment Service Environment is determined according to the detection data of grid equipment Service Environment index；
According to standard GB/T19292.1-2003, " corrosive atmosphere of metal and alloy corrodes the corrosion class of grid equipment Service Environment
Property classification " be classified, corrosion class is divided into 5 corrosion class such as C1, C2, C3, C4, C5；Shown in table 1 specific as follows:
The classification of 1 atmospheric corrosiveness of table
| Rank | Corrosivity |
| C1 | It is very low |
| C2 | It is low |
| C3 | It is medium |
| C4 | It is high |
| C5 | It is very high |
(3) according to the corrosion class of determining grid equipment Service Environment, and the coating performance evaluation index of detection
Each two-level appraisement index is as a result, determine whether the quality of grid equipment coating is qualified, as long as coating performance evaluation index is appointed
The testing result of what two-level appraisement index requires not being inconsistent with the corrosion class of corresponding grid equipment Service Environment, sentences
Determine the off quality of corresponding grid equipment coating.
The resistance requirements of grid equipment coating are as shown in table 1 below under the correspondence corrosion class of grid equipment Service Environment.
Grid equipment coating bubbles class requirement under each corrosion class of table 2
The thickness requirement of grid equipment coating is as shown in table 2 below under the correspondence corrosion class of grid equipment Service Environment.
Grid equipment coating thickness requirement detail list under each corrosion class of table 3 (unit: μm)
The resistance requirements of grid equipment coating are as shown in table 3 below under the correspondence corrosion class of grid equipment Service Environment.
Grid equipment coating impedance demand items table under each corrosion class of table 4
| Corrosion class | C1 | C2 | C3 | C4 | C5 |
| Impedance minimum (Ω cm2) | 108 | 108 | 108 | 109 | 109 |
The present invention is not limited to above-described specific embodiment, and the foregoing is merely preferable case study on implementation of the invention
, be not intended to limit the invention, it is done within the spirit and principles of the present invention it is any modification, equivalent replacement and
Improve etc., it should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of method of detection evaluation grid equipment coating quality, it is characterised in that: the following steps are included:
(1) each evaluation index of grid equipment coating is detected；The evaluation index includes 2 level-one evaluation indexes, specifically:
Grid equipment Service Environment index, coating performance evaluation index；The grid equipment Service Environment index includes that 4 second levels refer to
Mark, specifically: atmosphere humidity time, dust in air content, chlorination salt content in content of sulphur compounds and air in air；
The coating performance evaluation index includes 5 two-level index, specifically: appearance, coating foaming grade, thickness, adhesive force and resistance
It is anti-；
(2) corrosion class of grid equipment Service Environment is determined according to the detection data of grid equipment Service Environment index；
(3) according to the corrosion class of determining grid equipment Service Environment, and detection coating performance evaluation index it is each
Two-level appraisement index as a result, determine grid equipment coating quality it is whether qualified, if any the one of coating performance evaluation index
The testing result of a two-level appraisement index requires not being inconsistent with the corrosion class of corresponding grid equipment Service Environment, determines to correspond to
Grid equipment coating it is off quality.
2. a kind of method of detection evaluation grid equipment coating quality according to claim 1, it is characterised in that: the clothes
Data needed for using as a servant environmental index are on active service regional 3~12 months by monitoring and obtain or utilize the existing corrosion monitoring number in this area
According to.
3. a kind of method of detection evaluation grid equipment coating quality according to claim 1, it is characterised in that: the electricity
The corrosion class of net equipment Service Environment is C1, C2, C3, C4, C5.
4. a kind of method of detection evaluation grid equipment coating quality according to claim 3, it is characterised in that: in power grid
The resistance requirements of grid equipment coating are as shown in table 1 below under the correspondence corrosion class of equipment Service Environment.
Grid equipment coating bubbles class requirement under each corrosion class of table 1
5. it is according to claim 3 it is a kind of detection evaluation grid equipment coating quality method, it is characterised in that: it is described
The thickness requirement of grid equipment coating is as shown in table 2 below under the correspondence corrosion class of grid equipment Service Environment.
Grid equipment coating thickness requirement detail list under each corrosion class of table 2 (unit: μm)
6. a kind of method of detection evaluation grid equipment coating quality according to claim 3, it is characterised in that: in power grid
The resistance requirements of grid equipment coating are as shown in table 3 below under the correspondence corrosion class of equipment Service Environment.
Grid equipment coating impedance demand items table under each corrosion class of table 3
7. a kind of method of detection evaluation grid equipment coating quality according to claim 1, it is characterised in that: the electricity
The attachment force request of net equipment coating is no less than 5MPa.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811401555.1A CN109580464B (en) | 2018-11-22 | 2018-11-22 | Method for detecting and evaluating coating quality of power grid equipment |
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|---|---|---|---|
| CN201811401555.1A CN109580464B (en) | 2018-11-22 | 2018-11-22 | Method for detecting and evaluating coating quality of power grid equipment |
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|---|---|
| CN109580464A true CN109580464A (en) | 2019-04-05 |
| CN109580464B CN109580464B (en) | 2021-12-28 |
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| CN201811401555.1A Active CN109580464B (en) | 2018-11-22 | 2018-11-22 | Method for detecting and evaluating coating quality of power grid equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098462A (en) * | 2020-10-20 | 2020-12-18 | 贵州电网有限责任公司 | Paint layer thickness infrared thermal imaging detection device and detection method |
| CN114331054A (en) * | 2021-12-14 | 2022-04-12 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Protective coating evaluation method and evaluation system |
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|---|---|---|---|---|
| CN112098462A (en) * | 2020-10-20 | 2020-12-18 | 贵州电网有限责任公司 | Paint layer thickness infrared thermal imaging detection device and detection method |
| CN112098462B (en) * | 2020-10-20 | 2022-07-12 | 贵州电网有限责任公司 | Paint layer thickness infrared thermal imaging detection device and detection method |
| CN114331054A (en) * | 2021-12-14 | 2022-04-12 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Protective coating evaluation method and evaluation system |
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| CN109580464B (en) | 2021-12-28 |
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