|
US$184.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 31838.5-2021: Solid insulating materials - Dielectric and resistive properties - Part 5: Resistive properties(DC method) - Volume resistance and volume resistivity of impregnation and coating materials
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 31838.5-2021 | English | 184 |
Add to Cart
|
3 days [Need to translate]
|
Solid insulating materials - Dielectric and resistive properties - Part 5: Resistive properties(DC method) - Volume resistance and volume resistivity of impregnation and coating materials
| Valid |
GB/T 31838.5-2021
|
PDF similar to GB/T 31838.5-2021
Basic data | Standard ID | GB/T 31838.5-2021 (GB/T31838.5-2021) | | Description (Translated English) | Solid insulating materials - Dielectric and resistive properties - Part 5: Resistive properties(DC method) - Volume resistance and volume resistivity of impregnation and coating materials | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K15 | | Word Count Estimation | 10,130 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 31838.5-2021: Solid insulating materials - Dielectric and resistive properties - Part 5: Resistive properties(DC method) - Volume resistance and volume resistivity of impregnation and coating materials
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Solid insulating materials-Dielectric and resistive properties-Part 5.Resistive properties(DC method)-Volume resistance and volume resistivity of impregnation and coating materials
ICS 29.035.01
CCSK15
National Standards of People's Republic of China
Dielectric and resistance properties of solid insulating materials
Part 5.Resistance characteristics (DC method) impregnation and
Volume resistance and volume resistivity of coating material
(IEC 62631-3-11.2018,Dielectricandresistivepropertiesofsolidinsulating
Released on 2021-05-21 and implemented on 2021-12-01
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Meaning 2
5 Test method 2
6 Report 4
7 Repeatability and reproducibility 5
Reference 6
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is part 5 of GB/T 31838 "Dielectric and Resistance Characteristics of Solid Insulating Materials". GB/T 31838 has been released
The following parts.
---Part 1.General Provisions;
---Part 2.Resistance characteristics (DC method) volume resistance and volume resistivity;
---Part 3.Resistance characteristics (DC method) surface resistance and surface resistivity;
---Part 4.Resistance characteristics (DC method) insulation resistance;
---Part 5.Resistance characteristics (DC method) Volume resistance and volume resistivity of dipping and coating materials;
---Part 6.Dielectric characteristics (AC method), relative permittivity and dielectric loss factor (frequency 0.1Hz~10MHz);
---Part 7.Resistance specific (DC method) Measuring volume resistance and volume resistivity at high temperatures.
The translation method used in this document is equivalent to IEC 62631-3-11.2018 "Dielectric and Resistance Characteristics of Solid Insulating Materials Part 3-11"
Points. Determination of electrical resistance characteristics (DC method) Test method for volume resistance and volume resistivity of dipping and coating materials".
The Chinese documents that have a consistent correspondence with the normative reference documents in this document are as follows.
---GB/T 9271-2008 paint and varnish standard test board (ISO 1514.2004, MOD);
---GB/T 13452.2-2008 Determination of paint film thickness of paints and varnishes (ISO 2808.2007, IDT);
---GB/T 31838.2-2019 Dielectric and resistance characteristics of solid insulating materials Part 2.Resistance characteristics (DC method)
Volume resistance and volume resistivity (IEC 62631-3-1.2016, IDT).
This document has made the following editorial changes.
---In order to be consistent with the existing standard series, the name of the document is changed to "Dielectric and Resistance Characteristics of Solid Insulating Materials Part 5.Resistance
Characteristics (DC method) Volume resistance and volume resistivity of dipping and coating materials".
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Standardization Technical Committee for Evaluation of Electrical Insulation Materials and Insulation Systems (SAC/TC301).
Drafting organizations of this document. Zhejiang Bofei Electric Co., Ltd., Beijing Institute of Electrical Technology and Economics of Machinery Industry, Zhejiang Rongtai Technology
Enterprise Co., Ltd., Quality and Technical Supervision Standards and Coding Office of Shunde District, Foshan City, Guangdong Mingyang Electric Co., Ltd., Suzhou Taihu Electrician
New Materials Co., Ltd., Dongfang Electric Group Dongfang Electric Co., Ltd., Suzhou Jufeng Electrical Insulation System Co., Ltd., Hongguang Optoelectronics
Group Co., Ltd., CRRC Yongji Electric Co., Ltd., Taizhou Yuming New Material Co., Ltd., Jiangsu CRRC Electric Co., Ltd., Anhui Weineng
Motor Co., Ltd., Zhejiang Rongtai Electrical Equipment Co., Ltd., Wuxi Jiangnan Cable Co., Ltd., Tongling Jingda Special Magnet Wire Co., Ltd.
Company, China Three Gorges Group Co., Ltd., Jinbei Electric Magnet Wire Co., Ltd., Guilin Saimeng Testing Technology Co., Ltd.
Drafters of this document. Chen Hao, Liu Yali, Di Ningyu, Zheng Minmin, Zhang Chunqi, Guo Zhenyan, Guo Xianqing, Zhao Xiaochun, Zhang Yue, Xia Yu, Zou Zubing,
Lin Boyang, Wang Ying, Lei Pingzhen, Zhu Yongming, Che Sanhong, Wang Xiaochun, Ge Fan, Liu Jun, Peng Chunbin, Zheng Qingxiang, Wei Chen, Huang Xiaoyun.
Introduction
Many fields in the electrical industry require data on the volume resistance and volume resistivity of solid insulating materials. GB/T 31838 proposes solid
The test method for the dielectric and resistance characteristics of insulating materials provides a unified sample system for users to test the dielectric and resistance characteristics of solid insulating materials
Preparation methods and test procedures, etc.
Currently, GB/T 31838 is composed of seven parts.
---Part 1.General Provisions. Put forward the factors that affect the dielectric and resistance characteristics of solid insulating materials, and guide the other parts of the document.
prepared by.
---Part 2.Resistance characteristics (DC method) Volume resistance and volume resistivity. It is proposed to measure solid insulating materials (excluding immersion
Stains and coating materials, casting materials) volume resistance and volume resistivity test methods.
---Part 3.Resistance characteristics (DC method) Surface resistance and surface resistivity. Proposed to measure the surface resistance of solid insulating materials
And the test method of surface resistivity.
---Part 4.Resistance characteristics (DC method) Insulation resistance. A test method for measuring the insulation resistance of solid insulating materials is proposed.
---Part 5.Resistance characteristics (DC method) Volume resistance and volume resistivity of dipping and coating materials. For dipping and coating
For layered insulating materials, test methods for measuring volume resistance and volume resistivity are proposed.
--- Part 6.Dielectric characteristics (AC method) relative permittivity and dielectric loss factor (frequency 0.1Hz ~ 10MHz). mention
A test method for measuring the dielectric properties of solid insulating materials at a frequency of 0.1 Hz to 10 MHz.
---Part 7.Resistance specific (DC method) Measuring volume resistance and volume resistivity at high temperatures. The proposed temperature is not higher than 800℃
The following test methods for determining the volume resistance and volume resistivity of solid insulating materials.
Dielectric and resistance properties of solid insulating materials
Part 5.Resistance characteristics (DC method) impregnation and
Volume resistance and volume resistivity of coating material
1 Scope
This document specifies the test method for the volume resistance and volume resistivity of solid insulating materials under applied DC voltage.
This document is applicable to materials such as unsaturated polyester-based impregnating resins, environmental curing covering paints, and thermal curing impregnating varnishes.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
IEC 62631-3-1 Dielectric and resistance characteristics of solid insulating materials Part 3-1.Determination of resistance characteristics (DC method) Volumetric electricity
General method of resistance and volume resistivity (Dielectricandresistivepropertiesofsolidinsulatingmaterials-Part 3-1.
Determinationofresistiveproperties(DCmethods)-Volumeresistanceandvolumeresistivity-Gen-
eralmethod)
ISO 1514 Paints and varnishes-Standard panels for testing
ISO 2808 Paints and varnishes-Determination of filmthick-
ness)
3 Terms and definitions
The following terms and definitions apply to this document.
The terms and definitions used in this document in ISO and IEC can be found on the following website.
3.1
Volume resistance
The part of the insulation resistance determined by volume conductivity.
Note. The unit of volume resistance is expressed in Ω.
3.2
Volume resistivity
The volume resistance relative to the volume of the material.
Note 1.The unit of volume resistivity is expressed in ohm meters (Ω·m).
Note 2.For insulating materials, the volume resistivity is usually measured by applying electrodes on the sheet sample.
Note 3.According to IEC 60050-121, in electromagnetics, "conductivity" is defined as a scalar or tensor, and the product of the electric field strength in the medium is equal to the current density.
Degree, "resistivity" is defined as "when there is a reciprocal, the reciprocal of conductivity". When measuring with this method, the volume resistivity is possible in the volume of the measurement.
The average value of non-uniform resistivity also includes the influence of possible polarization phenomena on the electrode.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 31838.5-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 31838.5-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 31838.5-2021_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 31838.5-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|