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GBZ28820.3-2012 English PDF

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GBZ28820.3-2012: Long-term radiation ageing in polymers -- Part 3: Procedures for in-service monitoring of low-voltage cable materials
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/Z 28820.3-2012	English	494	Add to Cart	3 days [Need to translate]	Long-term radiation ageing in polymers -- Part 3: Procedures for in-service monitoring of low-voltage cable materials	Valid	GB/Z 28820.3-2012

PDF similar to GBZ28820.3-2012

Standard similar to GBZ28820.3-2012

GB/T 31838.7 GB/T 36289.1 GB/T 31034 GB/T 13542.4 GB/Z 28820.4 GB/Z 28820.2

Basic data

Standard ID	GB/Z 28820.3-2012 (GB/Z28820.3-2012)
Description (Translated English)	Long-term radiation ageing in polymers -- Part 3: Procedures for in-service monitoring of low-voltage cable materials
Sector / Industry	National Standard
Classification of Chinese Standard	K15
Classification of International Standard	29.035.01
Word Count Estimation	25,224
Quoted Standard	GB/T 26168.4-2010
Adopted Standard	IECTS 61224-3-2005, IDT
Regulation (derived from)	National Standards Bulletin 2012 No. 28
Issuing agency(ies)	Ministry of Health of the People's Republic of China
Summary	This standard specifies the cable monitoring technology. These technologies aimed at monitoring the degradation of low-voltage cable. Advantages and limitations of each method and development will be mentioned in the relevant sections.

GBZ28820.3-2012: Long-term radiation ageing in polymers -- Part 3: Procedures for in-service monitoring of low-voltage cable 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.
Long-term radiation aging in polymers. Part 3. Procedures for in-service monitoring of low-voltage cable materials ICS 29.035.01 K15 People's Republic of China national standardization of technical guidance documents Long-term polymer radiation aging Part 3. Low voltage cable materials in service monitoring procedures Part 3.Proceduresforin-servicemonitoringoflow-voltagecablematerials (IEC /T S61224-3.2005, IDT) Posted on.2012-11-05 2013-02-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ Introduction IV 1 Scope 1 2 Normative references 1 3 Abbreviations 1 4 pairs of monitoring technology requirements 2 5 available technology 2 5.1 Overview 2 5.2 Site measurement without sampling 3 5.2.1 Overview 3 5.2.2 Indentation modulus 3 5.2.3 Sound speed 3 5.2.4 Near infrared reflection 3 5.2.5 Torque Modulus 4 5.3 micro-sampling field test 4 5.3.1 Overview 4 5.3.2 modulus drawing method 5 5.3.3 NMR relaxation 5 5.3.4 Infrared Spectroscopy (IR) 5 5.3.5 Oxidation induction period (OIT) and oxidation induction temperature (OITP) 6 5.3.6 Thermogravimetric Analysis (TGA) 6 5.3.7 Density 6 5.3.8 gel content and solvent absorption method 6 6 summary 6 References 19

Foreword

GB /Z 28820 "polymer long-term radiation aging" consists of three parts. --- Part 1. Monitoring of diffusion-limited oxidation technology; --- Part 2. Prediction of aging programs at low dose rates; --- Part 3. Low voltage cable materials in service monitoring procedures. This section GB /Z 28820 Part 3. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with IEC /T S61244-3.2005 "polymer long-term radiation aging Part 3. Low voltage cable materials In-service monitoring program. " This part is proposed by China Electrical Equipment Industry Association. This part of the National Electrical insulating materials and insulation system assessment standardization Technical Committee (SAC/TC301). This section is drafted unit. Shanghai Electric Cable Research Institute, Beijing Institute of Electrical Technology and Machinery Economy, Shenzhen Wal-Core Materials Co., Ltd. Company, Shenzhen Xusheng Sanyi Technology Co., Ltd., Shanghai Nuclear Industry Research and Design Institute, Shanghai Special Cable Electrician Technology Co., Ltd., Jiangsu Power on Cable Group Co., Ltd., Shanghai Cable Factory Co., Ltd., Linhai Yadong Special Cable Material Factory, Shanghai Kaibo Special Cable Material Factory Co., Ltd., none Xi Jiangnan Cable Co., Ltd., Changzhou eight benefits Cable Co., Ltd., Shanghai to the right of polymer materials Co., Ltd., Shanghai innovation high temperature Cable Factory, Zhejiang Wanma Cable Co., Ltd. The main drafters of this section. Sun Jiansheng, Liu Yali, Guo Liping, Kang Shufeng, Lu Wei, Ju Xuecheng, Gu Shenjie, Sun Ping, Wang Songming, Wang Yiyao, Zhou Caihui, Duan Chunlai, Zhao Wenming, Zhou Syria, Hou Hailiang, Shen 彧, Tang Songbai, Liu Shufen, Liu Fengjuan, Liu Qihuan.

Introduction

In radiation environments, polymers are widely used as electrical insulation materials (eg, control cables, instrumentation cables, and power cables). above Under operating conditions, their operational lifetime is the entire operating life of a nuclear power plant, perhaps more than 40 years, and may be over its lifetime or The end of the period will run under accident conditions. Although there are many data to evaluate the performance of polymeric insulation under radiation conditions, There is no definitive assessment of cable performance under long-term, low-dose exposure. Therefore, cables are needed during the operation of a nuclear power plant In-service monitoring of degradation of insulation materials. The right cable monitoring technology is the basis for a nuclear power station monitoring program that guarantees nuclear power plants Life Extension and License Updates. The main content of this section is on the monitoring of cable performance under radiation environment, the same applies to other polymers. These techniques can also be used for single heat aging monitoring of polymers. Long-term polymer radiation aging Part 3. Low voltage cable materials in service monitoring procedures

1 Scope

This part of GB /Z 28820 summarizes the current main cable monitoring technology. These technologies are mainly aimed at the degradation of low voltage cables Monitoring. The advantages and limitations of each approach and its development are mentioned in the relevant chapters.

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. GB/T 26168.4-2010 Determination of the effects of ionizing radiation on electrical insulating materials - Part 4. Assessment procedures for aging during operation (IEC 60544-5.2003, IDT)

3 Abbreviations

The following abbreviations apply to this document. BR butyl rubber CM status monitoring CSPE chlorosulfonated polyethylene CP chloroprene DLO diffusion limited oxidation DSC Differential Scanning Calorimeter EPR ethylene-propylene rubber EVA ethylene vinyl acetate copolymer IR infrared spectrum OIT oxidation induction period OITP oxidation induces temperature NIR NIR spectroscopy NMR nuclear magnetic resonance PE polyethylene PVC PVC PEEK polyetheretherketone SBR styrene-butadiene rubber TGA thermogravimetric analysis XLPE XLPE XLPO cross-linked polyolefin

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