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GB/T 15022.8-2017: Resin based reactive compounds used for electrical insulation -- Part 8: Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15022.8-2017 | English | 119 |
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Resin based reactive compounds used for electrical insulation -- Part 8: Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin
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GB/T 15022.8-2017
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Basic data | Standard ID | GB/T 15022.8-2017 (GB/T15022.8-2017) | | Description (Translated English) | Resin based reactive compounds used for electrical insulation -- Part 8: Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K15 | | Classification of International Standard | 29.035.99 | | Word Count Estimation | 6,670 | | Date of Issue | 2017-09-29 | | Date of Implementation | 2018-04-01 | | 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 | GB/T 15022.8-2017: Resin based reactive compounds used for electrical insulation -- Part 8: Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin
---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.
Resin based reactive compounds used for electrical insulation - Part 8. Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin
ICS 29.035.99
K15
National Standards of People's Republic of China
Resins for electrical insulation
Part 8. Epoxy - modified unsaturated polyester vacuum pressure
Impregnated (VPI) resin
Part 8.Epoxymodifiedunsaturatedpolyestervacuumpressure
impregnation (VPI) resin
2017-09-29 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 15022 "electrical insulating resin-based active composite" is divided into the following sections.
--- Part 1. Definition and general requirements;
--- Part 2. Test methods;
--- Part 3. No filler epoxy resin compound;
--- Part 4. Unsaturated polyester-based impregnating resin;
--- Part 5. Quartz filler epoxy resin composite;
--- Part 6. Nuclear Power Plant 1E level distribution transformer insulation with epoxy resin;
--- Part 7. Epoxy anhydride vacuum pressure impregnation (VPI) resin;
--- Part 8. Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin;
This section GB/T 15022 Part 8.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Electrical Equipment Industry Association.
This part of the National Standardization Technical Committee insulation materials (SAC/TC51) centralized.
This section is drafted unit. Taihu Lake Electrical Suzhou New Materials Co., Ltd., Guilin Electric Institute of Science and Technology Co., Ltd., Zhejiang Rong Tyco
Technology Co., Ltd., Suzhou Jufeng Electrical Insulation System Co., Ltd.
The main drafters of this section. Li Xinzhong, Shi Wenlei, Luo Chuan Yong, Cao Wanrong, Xia Yu, Cui Cui.
Resins for electrical insulation
Part 8. Epoxy - modified unsaturated polyester vacuum pressure
Impregnated (VPI) resin
1 Scope
GB/T 15022 provisions of this part of the electrical insulation with epoxy modified unsaturated polyester pressure impregnation (VPI) resin requirements, the test
Inspection methods, inspection rules and packaging, marking, storage and transportation.
This section applies to electrical insulation with epoxy modified unsaturated polyester pressure impregnation (VPI) resin.
Note. Epoxy modified unsaturated polyester vacuum pressure impregnation (VPI) resin is a high purity epoxy modified unsaturated polyester, with a new modified curing agent, accelerator,
Active cross-linking agent made of one-component impregnated resin.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Paints for electrical insulation - Part 2. Test methods
Test method for determining the bond strength of impregnating agent to enamelled wire substrate
GB/T 15022.2-2007 Resin-based reactive composites for electrical insulation - Part 2. Test methods
Plastics - Liquid resins - Determination of density by the method of pyknometer GB/T 15223-2008
3 requirements
This product should meet the requirements of Table 1.
Table 1 epoxy-modified unsaturated polyester vacuum pressure impregnation (VPI) resin requirements
No. Performance unit requirements
1 appearance - light yellow transparent liquid, no mechanical impurities
2 viscosity [Tu-4 viscometer, (23 ± 1) ℃] s 30 ~ 60
3 acid value (based on KOH) mg/g ≤8
4 density g/cm3 1.04 ± 0.03
5 thick layer curing ability [(135 ± 2) ℃/2h] - not worse than S1, U1, I2.1 uniform
6 Curing volatiles (140 ± 2) ° C/2h% ≤10
7 gel time [test tube method, (135 ± 2) ℃] min 5 ~ 20
8 Paint and copper reaction - no patina
Power frequency electrical strength
(23 ± 1) ° C
(23 ± 1) ℃ after immersion 24h
(155 ± 2) ° C
MV/m
≥25
≥22
≥18
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