GBZ28820.4-2022 English PDFUS$504.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GBZ28820.4-2022: Long-term radiation ageing in polymers - Part 4: Effects of different temperatures and dose rates under radiation conditions Status: Valid
Basic dataStandard ID: GB/Z 28820.4-2022 (GB/Z28820.4-2022)Description (Translated English): Long-term radiation ageing in polymers - Part 4: Effects of different temperatures and dose rates under radiation conditions Sector / Industry: National Standard Classification of Chinese Standard: K15 Word Count Estimation: 27,265 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GBZ28820.4-2022: Long-term radiation ageing in polymers - Part 4: Effects of different temperatures and dose rates under radiation conditions---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. GB /Z 28820.4-2022 Long-term radiation ageing in polymers - Part 4.Effects of different temperatures and dose rates under radiation conditions ICS 17.240; 29.035.01 CCSK15 National Standardization Guiding Technical Document of the People's Republic of China Long-term radiation aging of polymers Part 4.Different temperatures and The effect of dose rate radiationconditions, IDT) 2022-07-11 Released 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions and Abbreviations 1 3.1 Terms and Definitions 1 3.2 Abbreviations 1 4 Degradation mechanism induced by radiation under standard environmental conditions 3 4.1 Overview 3 4.2 Oxygen influence 3 4.3 Dose Rate Effect Impact-1.Physical Aspects 3 4.4 Dose Rate Effect Impact-2.Chemical Aspects 4 4.5 Study on Degradation Mechanism 4 4.6 Experience and Acceleration Factor 5 4.7 Low dose rate testing and LOCA durability 5 4.8 Environmental impact of LOCA test 5 4.9 Sequential, synergistic and hindering effects 6 4.10 Test conditions for sequential effects equivalent to synergistic effects 6 4.11 TMI accident and follow-up studies 6 4.12 Arrhenius' Law and Limitations 7 4.13 Slow Degradation Behavior Observed During In-Service Cable Aging 9 4.14 Inverse temperature effects 9 4.15 Antioxidant action 10 4.16 Other degradation characteristics in thermal and irradiated environments 10 5 Accelerated aging test method 11 5.1 Sequential aging test 11 5.2 Simultaneous aging test 13 6 Conclusion 13 Reference 14 forewordThis 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" drafted. This document is part 4 of GB /Z 28820 "Long-term Radiation Aging of Polymers". GB /Z 28820 has published the following parts. --- Part 1.Techniques for monitoring diffusion-limited oxidation; --- Part 2.Procedures for predicting aging at low dose rates; --- Part 3.In-service monitoring procedures for low-voltage cable materials; --- Part 4.Effects of different temperatures and dose rates under radiation conditions. This document is identical to IEC /T R61244-4.2019 "Determination of long-term radiation aging of polymers - Part 4.Different temperatures under radiation conditions" Influence of Intensity and Dose Rate", the document type is adjusted from IEC technical report to my country's national standardization guiding technical document. The following minimal editorial changes have been made to this document. --- In order to harmonize with existing standards, change the name of the document to "Long-term Radiation Aging of Polymers - Part 4.Different Temperatures under Radiation Conditions and Dose Rate Effects.” Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Standardization Technical Committee for the Evaluation of Electrical Insulation Materials and Insulation Systems (SAC/TC301). This document is drafted by. Guangzhou Power Supply Bureau of Guangdong Power Grid Co., Ltd., Anhui Tiankang (Group) Co., Ltd., Shenzhen Wall Nuclear Materials Co., Ltd., Anhui Sunway Cable Co., Ltd., Wuxi Jiangnan Cable Co., Ltd., China Guangdong Nuclear Power Delta (Taicang) testing technology has Co., Ltd., Jiangsu Institute of Product Quality Supervision and Inspection, Linhai Yadong Special Cable Material Factory, Sichuan Dongcai Technology Group Co., Ltd., Dongfang Electric Group Dongfang Electric Co., Ltd., Suzhou Taihu Electric New Materials Co., Ltd., Beijing Electric Technology and Economic Research of Machinery Industry Institute, Jiangsu Yuming New Materials Co., Ltd., Jiangsu Xinxun Optoelectronics Technology Co., Ltd., Shanghai Cable Research Institute Co., Ltd., Harbin University of Science and Technology Science, Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Liaoning Provincial Inspection, Testing and Certification Center. The main drafters of this document. Liu Yali, Mo Wenxiong, Huang Qingdan, Huang Huihong, Song Haoyong, Wang Wei, Xu Chengye, Zhang Long, Huang Xiaojun, Sun Hao, Li Jianxi, Wu Jiang, Zhou Wei, Huang Hongchi, Zhang Xiaojun, Ma Junfeng, Chen Hao, Zhu Yongming, Xu Longlong, Sun Jiansheng, Gao Junguo, Lu Yanyun, Guo Ning, Song Chengwei, Huang Haiqin and Zhou Cheng.IntroductionIEC 60216 (all parts) and IEC 60544 (all parts) propose testing electrical insulating materials for accelerated thermal aging and radiation, respectively Aging reference guide. In practical applications of electrical equipment, it is usually necessary to consider the effects of temperature and different radiation intensities at the same time. CIGREWGD1.42 provides the damage data of cables and their insulating materials under the simultaneous application of heat and radiation. Currently working A wide variety of different materials are used in the industry, but this document only studies cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), silicone rubber (SIR) and Polyvinyl chloride (PVC) is a commonly used material. Using test data from these materials, nuclear power plant operators can meet regulatory Requirements defined under the "Long Service" framework and indicate that most insulation materials that are 30 to 40 years old are in good condition. also, Materials were also obtained from in-service equipment as specimens and compared with test results on unaged and artificially aged reference specimens. The main purpose of the nuclear power industry is to obtain reliable residual life values for in-service insulating materials and equipment connections composed of these materials. but With the appearance of in-service aging of insulating materials, it is necessary to study more deviations from the estimated values of accelerated aging tests. For better determination of insulation For the degradation process of materials, it is necessary to have a broader understanding of the degradation and interrelated synergistic effects of materials under the action of low-intensity heat and radiation. GB /Z 28820.4 aims to summarize the results and update the literature references in CIGREWGD1.42 in some areas, proposing thermal aging- Radiation aging multi-factor assessment procedure. At present, GB /Z 28820 consists of 4 parts. --- Part 1.Techniques for monitoring diffusion-limited oxidation. The aim is to propose techniques for monitoring diffusion-limited oxidation. --- Part 2.Procedures for predicting aging at low dose rates. The purpose is to propose a prediction of polymer aging under low dose rate radiation program. --- Part 3.In-service monitoring procedures for low-voltage cable materials. The purpose is to summarize the techniques for monitoring the in-service degradation of low-voltage cable materials. --- Part 4.Effects of different temperatures and dose rates under radiation conditions. The purpose is to summarize the effect of temperature and dose rate on polymer materials Effects of Radiation Aging. Long-term radiation aging of polymers Part 4.Different temperatures and The effect of dose rate1 ScopeThis document provides an overview of the evaluation/validation of Electrical Insulation Materials (EIM) and Electrical Insulation Systems (EIS) used in equipment exposed to ionizing radiation. General guide. In addition to sensors, drives/motors, and connectors and terminals, cables are typical electrical equipment for EIM and EIS applications, including Including low-voltage power cables, control cables and instrument cables, etc. The cable design is simple and ideal for studying the degradation process of EIM and EIS. These findings can also be applied to electrical equipment such as sensors, drives/motors, and connectors and terminals. This document applies to evaluation/validation procedures that simulate the simultaneous action of different temperatures and radiation intensities. This document does not apply to detailed test procedures for characteristic test methods. Note 1.When using this document to evaluate some specific products, it may be necessary to use other procedures related to that product. Note 2.The procedures specified in this document contain certain emerging technologies, so in the evaluation process, the experience gained and specific conditions can be taken into account in.2 Normative referencesThe contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. NOTE. GB/T 26168 (all parts) Electrical insulating materials determine the effects of ionizing radiation [IEC 60544 (all parts)] ageinginpolymers) 1) IEC /T S61244-3.2005 has been repealed. Note. GB /Z 28820 (all parts) long-term radiation aging of polymers [IEC /T S61244 (all parts)]3 Terms and Definitions and Abbreviations3.1 Terms and Definitions Terms and definitions defined in IEC /T S61244 (all parts) and IEC 60544 (all parts) apply to this document. Terms and definitions used in this document from ISO and IEC are available at. 3.2 Abbreviations The following abbreviations apply to this document. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GBZ28820.4-2022_English be delivered?Answer: Upon your order, we will start to translate GBZ28820.4-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GBZ28820.4-2022_English with my colleagues?Answer: Yes. 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