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GB/T 1981.4-2009 English PDF

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US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 1981.4-2009: Varnishes used for electrical insulation -- Part 4: Polyester-imide varnishes
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1981.4-2009	139	Add to Cart	3 days	Varnishes used for electrical insulation -- Part 4: Polyester-imide varnishes	Valid

Similar standards

GB/T 1408.3 GB/T 1408.2 GB/T 1408.1 GB/T 1981.6 GB/T 1981.3 GB/T 1981.5

Basic data

Standard ID: GB/T 1981.4-2009 (GB/T1981.4-2009)
Description (Translated English): Varnishes used for electrical insulation -- Part 4: Polyester-imide varnishes
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K15
Classification of International Standard: 29.035.99
Word Count Estimation: 6,653
Date of Issue: 2009-06-10
Date of Implementation: 2009-12-01
Regulation (derived from): Announcement of Newly Approved National Standards No. 8, 2009 (No. 148 overall)
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 polyester-imide varnish models, requirements, test methods, inspection rules, packaging, labeling, storage and transportation. This section applies to electrical insulation Class H polyester-imide varnish.

GB/T 1981.4-2009: Varnishes used for electrical insulation -- Part 4: Polyester-imide varnishes

---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.
Varnishes used for electrical insulation Part 4. Polyester-imide varnishes ICS 29.035.99 K15 National Standards of People's Republic of China Electrical insulating paint Part 4. polyester-imide varnish Posted 2009-06-10 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 1981 "for electrical insulation paint" is divided into the following sections. --- Part 1. Definitions and general requirements --- Part 2. Test methods --- Part 3. General specification for hot curing impregnating varnishes --- Part 4. polyester-imide varnish --- Part 5. Fast energy-curable melamine alkyd varnish This section GB/T 1981 Part 4. This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Standardization Technical Committee of the insulating material (SAC/TC51) centralized. This section is drafted. Fushun Dongyang City Insulation Materials Co., Ltd. Harbin celebrate edge electrical materials, electrical Guilin Branch Institute. This section mainly from the people. Jinwei Hu, Zhou Changmin, Zhang Xiuli, Malin Quan. Electrical insulating paint Part 4. polyester-imide varnish

1 Scope

GB/T 1981 This section specifies the type of polyester-imide varnish, requirements, test methods, inspection rules, packaging, labeling, storage And transportation. This section applies to electrical insulation class H polyester-imide varnish.

2 Normative references

The following documents contain provisions which, through reference to GB/T 1981 to the present, constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 1981.1-2007 electrical insulating paints - Part 1. Definitions and general requirements (IEC 60464-1.1998, IDT) GB/T 1981.2-2009 electrical insulating paints - Part 2. Test methods (IEC 60464-2.2001, MOD) GB/T 6109.5-2008 enamelled round winding wire - Part 5. 180 polyester enamelled round copper wire (IEC 60317-8.1997, IDT)

3 Models

H-level model for the polyester-imide varnish. 1056.

4 Requirements

All materials one delivery, in addition shall comply with the requirements of GB/T 1981.1-2007 prescribed, it should also comply with this section in Table 1 Requirements. Table 1 polyester-imide varnish performance requirements No. Property Unit Requirements 1 Appearance - Liquid paint should be transparent, no mechanical impurities and undissolved Particle; the film should be smooth and shiny. 2 Viscosity (No. 4 cup, 23 ℃ ± 1 ℃) s 70 ± 7 3 Non-volatile content (130 ℃ ± 2 ℃/2h)% 50 ± 2 Thick layer is cured (120 ℃ ± 2 ℃/4h + 150 ℃ ± 2 ℃/8h) - No smaller than S1-U1-I4.2 uniform 5 Effect of enameled wire paint - pencil hardness of not less than 2H Volume resistivity Normal (23 ℃ ± 2 ℃) Immersion (room temperature, 168h) after Ω · m ≥1.0 × 1012 ≥1.0 × 1010 7 dielectric loss factor (180 ℃ ± 2 ℃) - supply and demand sides agreed ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 1981.4-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 1981.4-2009_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 1981.4-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 1981.4-2009_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+ countries

Question 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 Sales@ChineseStandard.net. 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.