|
US$174.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27749-2011: Heat-resistant insulating paint testing procedures for electric strength Act
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27749-2011 | English | 174 |
Add to Cart
|
3 days [Need to translate]
|
Heat-resistant insulating paint testing procedures for electric strength Act
| Valid |
GB/T 27749-2011
|
PDF similar to GB/T 27749-2011
Basic data | Standard ID | GB/T 27749-2011 (GB/T27749-2011) | | Description (Translated English) | Heat-resistant insulating paint testing procedures for electric strength Act | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K15 | | Classification of International Standard | 29.035.01 | | Word Count Estimation | 9,943 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-05-01 | | Quoted Standard | GB/T 1408.1-2006; GB/T 10580-2003; GB/T 11026.1-2006; GB/T 11026.3-2006; GB/T 11026.4-1999 | | Adopted Standard | IEC 60370-1971, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 22 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the electrical insulation to determine a method of heat-resistant paint. The method is by measuring the glass cloth coated on the insulating paint after thermal aging to determine the electric strength of the heat resistance. The criteria used to assess the temperature index, in order to determine the electrical insulation in the electrical system applicability. | GB/T 27749-2011: Heat-resistant insulating paint testing procedures for electric strength Act---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.
Heat-resistant insulating paint testing procedures for electric strength Act
ICS 29.035.01
K15
National Standards of People's Republic of China
Heat-resistant insulating paint testing procedures for electric strength method
(IEC 60370. 1971, IDT)
Issued on. 2011-12-30
2012-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard uses the translation method identical with IEC 60370. 1971 "insulating paint heat resistance test procedures Electric strength method."
For ease of use, this standard made the following editorial changes.
a) Remove the foreword and introduction of international standards;
b) In Chapter 2, "Normative references", the IEC 60370. 1971 standard referenced converted to the corresponding national standards.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
The standard proposed by China Electrical Equipment Industrial Association.
This standard by the National Standardization Technical Committee of the insulating material (SAC/TC51) centralized.
This standard was drafted. Suzhou Jufeng Electrical Insulation Systems Co., Ltd., Zhejiang Rongtai Technology Enterprise Co., Ltd., Guilin Electric Division
Graduate School.
The main drafters. Zhang Bo, Xia Yu, Cao Wanrong.
Heat-resistant insulating paint testing procedures for electric strength method
1 Scope
This standard specifies a method for determining the electrically insulating heat-resistant paint. This method is by measuring the heat insulating paint coated on a glass cloth
Electric strength before and after aging to determine its heat resistance.
The criteria used to assess the temperature index, in order to determine the applicability of electrical insulating varnishes in the electrical system.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 1408.1-2006 electrical insulating materials strength test methods - Part 1. Tests at power frequencies (IEC 60243-1.1998,
IDT)
GB/T 10580-2003 standard conditions of solid insulating material before the test and during the test used (IEC 60212. 1971, IDT)
Aging procedures and evaluation of test results. GB/T 11026.1-2003 heat resistance, electrical insulating materials - Part 1
(IEC 60216-1.2001, IDT)
GB/T 11026.3-2006 heat resistance, electrical insulating materials - Part 3. Calculation procedure thermal characteristic parameters
(IEC 60216-3.2002, IDT)
GB/T 11026.4-1999 determine the electrical insulation material heat resistance guide - Part 4. Ageing ovens - Single - chamber ovens
(IEC 60216-4-1.1990, IDT)
3 Overview
3.1 standard used to determine the retention rate after coating on the glass paint cloth high temperature aging electrical strength. In the evaluation of the electrical equipment insulating paint
Prepare for the applicability of its physical and chemical properties such as hardness, bond strength, solvent resistance and thermoplastic flowability is equally important, but these properties
Can not assessed within the scope of this test method, test methods other applications were evaluated.
Effect of Electrical Insulating Varnish life is a major factor of thermal degradation due to thermal degradation of the varnish brittle, various operating conditions such as moisture and vibration
It will cause damage to electrical equipment, an insulating paint only if it remains intact when the physical and electrical properties in order to effectively protect electrical
equipment.
Paint thermal deterioration lead to changes in the performance of these changes may include loss of quality, porosity, cracking, embrittlement and other mechanical properties
Loss. Thermal degradation of paint fall through to check the electrical strength. Therefore, this test method uses electric intensity as a failure criterion.
Electrical insulating varnish in use due to vibration and thermal expansion and subjected to bending, whereby the functional assay would include bending and extending insulated.
3.2 standard recommends two approaches.
Method Ⅰ --- designed so that the outer surface of the lacquer system is subjected to about 2%, hyperbolic electrode extends. This is a simulation of paint may be in use
It will suffer by bending.
Method Ⅱ --- plate electrode system. This method is only the impact of thermal deterioration of the sample from the bending method Ⅰ, in determining
When the thermal aging process of electrical showing weakness, no additional mechanical extension of.
The test results indicate whether the two methods of bending strength of the electrical nature of the impact of aging.
3.3 Standard samples specified period in a high temperature oven aging, then remove from the oven and, after cooling electrical strength test, each
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 27749-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 27749-2011_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 27749-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 27749-2011_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.
|