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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 44179-2024: Composite hollow core station post insulators with a. c. voltage greater than 1 000 V and d. c. voltage greater than 1 500 V - Definitions, test methods and acceptance criteria Status: Valid
Basic dataStandard ID: GB/T 44179-2024 (GB/T44179-2024)Description (Translated English): Composite hollow core station post insulators with a. c. voltage greater than 1 000 V and d. c. voltage greater than 1 500 V - Definitions, test methods and acceptance criteria Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K48 Classification of International Standard: 29.080.10 Word Count Estimation: 26,258 Date of Issue: 2024-07-24 Date of Implementation: 2025-02-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 44179-2024: Composite hollow core station post insulators with a. c. voltage greater than 1 000 V and d. c. voltage greater than 1 500 V - Definitions, test methods and acceptance criteria---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/T 44179-2024 English version. Composite hollow core station post insulators with ac voltage greater than 1 000 V and dc voltage greater than 1 500 V - Definitions, test methods and acceptance criteria ICS 29.080.10 CCSK48 National Standard of the People's Republic of China AC voltage higher than 1000V and DC voltage higher than 1500V hollow post composite insulator for substation Definitions, test methods and acceptance criteria (IEC 62772.2023,MOD) Released on 2024-07-24 2025-02-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Graphics and Logos 5 5 Environmental conditions 6 6 Transport, storage and installation information 6 7 Test Classification 6 7.1 General Principles 6 7.2 Design of Experiment 6 7.3 Type test 6 7.4 Sampling test 7 7.5 Test by test 7 8 Designing an experiment 7 8.1 General 7 8.2 Interface and end fitting connection test 9 8.3 Core load test after assembly 10 8.4 Umbrella and umbrella cover material test 11 8.5 Pipe material test 12 8.6 Water diffusion test with umbrella cover 12 9 Type test 12 9.1 Internal pressure test 12 9.2 Bending test 12 9.3 Specified tensile load test, compression and flexural endurance test 12 9.4 Electrical test 12 10 Sampling test 13 11 Test one by one13 11.1 General 13 11.2 Appearance inspection 13 11.3 Seal test 14 12 File 14 Appendix A (Informative) Load Definition, Load Relationship 15 Reference 18 Table 1 Design and type test requirements 7 Figure A.1 Load definition and load relationship in GB/T 25096-2010 15 Figure A.2 Load definitions and load relationships in GB/T 21429-2008 16 Figure A.3 Relationship of bending load 16 Figure A.4 Load definition and load relationship comparison diagram 17ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is modified to adopt IEC 62772.2023 "Air conditioners for substations with AC voltages above 1000V and DC voltages above 1500V" Definitions, test methods and acceptance criteria for core-post composite insulators. The technical differences between this document and IEC 62772.2023 and their reasons are as follows. a) GB/T 22079 replaces IEC 62217 (see Chapter 5, Chapter 6, and Chapter 8) to adapt to my country's technical conditions; b) GB/T 25096-2010 replaced IEC 62231.2006 (see 7.3, 8.3.2.1, 9.3) to adapt to my country's technical conditions; c) The line "Coupling agent and application method" in the interface (see Table 1 of IEC 62772.2023) has been deleted to adapt to the actual situation in my country; d) Change "hydrophobic migration test" to "hydrophobic test" (see Table 1, 8.4.5), and change "see IEC TR62039" to "according to GB/T 22079" (see 8.4.5) to adapt to the actual test technical conditions in my country; e) The qualifier that the mechanical type of hollow post composite insulators is determined by the "height" characteristic has been deleted. "Only for compression and flexural resistance Load test” (see 7.3 of IEC 62772.2023), other mechanical properties are also affected to varying degrees by the “height” characteristics; f) "The manufacturer shall specify the SML value of the test piece" (see 8.2.2 of IEC 62772.2023) has been deleted and has been added to the drawings and markings (see 4 The necessary parameter values need to be provided in the chapter; g) Added normative reference GB/T 18851.1-2012 (see 8.3.1.2, 8.3.2.1) to provide standard for dye penetration test method. quasi basis; h) GB/T 19519-2014 replaced IEC 61109 (see 8.3.1.2, 8.3.2.1) to adapt to my country's technical conditions; i) Added "If the products are of equal diameter, only one sample shall be tested" (see 8.3.1.2, 8.3.2.1 and 8.3.3.1) to accommodate The actual situation in our country; j) Added "tracking and corrosion resistance test for umbrella cover materials" (see 8.4.6) to assess the relevant performance of umbrella and umbrella cover materials; k) Deleted the following. "Theoretical calculation may replace the specified tensile load test, compression and flexural endurance test after agreement between the supplier and the buyer" (see 9.3 of IEC 62772.2023) to adapt to the actual situation in my country; l) GB/T 8287.1-2008 replaced IEC 60168 (see 9.4.2~9.4.6) to adapt to my country's technical conditions; m) Deleted "If applied to a DC system, the DC voltage test shall be substituted for the AC voltage test" (see IEC 62772.2023 9.4.5 and 9.4.6), which description already appears in the general provisions (see 9.4.1); n) Added technical content of appearance inspection (see 11.2) to adapt to the actual situation in my country. The following editorial changes were made to this document. a) Added necessary parameter values in Chapter 4 Drawings and Markings, such as SML, MML, MDCL, MDToL, STL, MSP, etc. Body description; b) Change the general technical description of hollow post composite insulator assembly components in Figure 1 from footnote 1 to footnote 6 to footnote 1 to footnote 6. Note 4. c) Added a note in 8.5.3 Water diffusion test to explain the scope of water diffusion test samples; d) Deleted Appendix A (informative) “Filling material identification” and Appendix C (informative) “Hollow pillar composite insulation” of IEC 62772.2023 "Schematic diagram of sub-assembly components"; e) The informative references GB/T 311.1-2012 and GB/T 8287.2-2008 were added to the references. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed by the China Electrical Equipment Industry Association. This document is under the jurisdiction of the National Technical Committee for Standardization of Insulators (SAC/TC80). This document was drafted by. Xi'an High Voltage Electric Equipment Research Institute Co., Ltd., Jiangsu Shenma Electric Power Co., Ltd., Tsinghua University, China Electric Power Research Institute Co., Ltd., China Southern Power Grid Co., Ltd. Ultra-high Voltage Transmission Company, Nanjing Electric (Group) High-tech Materials Co., Ltd. Company, Huagao Electric (Hubei) Co., Ltd., Liling Huaxin High Energy Electric Co., Ltd., North Glass Power Composite Materials Co., Ltd., China Southern Electric The Dalian Electric Power Transmission and Transformation Materials Co., Ltd., Guangzhou Micro-Power Equipment Co., Ltd. Company, Xi'an Gaoqiang Insulation Electric Co., Ltd., China Electric Power Research Institute Co., Ltd. Wuhan Branch, Henan Pinggao Electric Co., Ltd. Co., Ltd., Nanjing Electric Insulator Co., Ltd., Jiangsu Xiangyuan Electric Equipment Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Electric Power Science Research Institute Research Institute, State Grid Jiangsu Electric Power Co., Ltd. Electric Power Research Institute, State Grid Hubei Electric Power Co., Ltd. Electric Power Research Institute, Sichuan Electric Power Design Consulting Co., Ltd., Xi'an XD High Voltage Bushing Co., Ltd., Xi'an XD Switchgear Co., Ltd., Luxi High Voltage Porcelain Electric Research Institute Co., Ltd., Chint Electric Co., Ltd., Jiangsu Lei Te Insulator Co., Ltd., Shandong Bi'an Electric Power Technology Co., Ltd., Guli Fa Electric Co., Ltd., Yangzhou Shuangbao Electric Equipment Co., Ltd., Nanyang Jinniu Electric Co., Ltd., Qingzhou Liwang Electric Technology Co., Ltd., Tangshan High Voltage Insulator Co., Ltd., Sinoma Jiangxi Insulator Co., Ltd., Baoding Jikai Electric Power Equipment Co., Ltd., Xi'an Xidian High Voltage Insulator Co., Ltd. Co., Ltd., Laizhou Yuhong Electric Co., Ltd., Guangdong Yudean Zhanjiang Wind Power Co., Ltd., Jiangxi Gaoqiang Insulator Group Co., Ltd. Jiangxi Quanxin Electric Co., Ltd., Pingxiang Zhongyuan Ceramics Co., Ltd., Jiangxi Saifu Electric Co., Ltd., Jiangxi Jinzhichuan Electric Porcelain Co., Ltd. Co., Ltd., Jiangxi Zhengqiang Electric Porcelain Co., Ltd., Jiangxi Kaijia Electric Porcelain Co., Ltd., New Northeast Electric Group High Voltage Switchgear Co., Ltd., State Grid Gansu Electric Power Company Electric Power Research Institute. The main drafters of this document are. Jing Qian, Zhou Shuchen, Liang Xidong, Wang Xi, Wei Xiaoxing, Tan Yuanzhou, Wang Jiansheng, Sun Huagang, He Qingwen, Hu Ping, Wei Peng, Liu Shizeng, Yao Junrui, Ni Jiaqi, Hu Wenqi, Zhang Xinxin, Ouyang Xudan, Zhang Changzheng, Zhang Baoying, Wang Yunpeng, Zhou Jun, Zhang Rui, Dang Zhenping, Zhang Qian, Zhang Shangang, Liu Tieqiao, Sun Yong, Wang Shaohua, Gao Song, Yao Yao, Wang Haiyang, Li Xiyu, Zhou Songsong, Han Xiaodong, Li Xinyi, Li Te, Lai Qun, Zhang Shuliang, Yao Gonglin, Huang Changxue, Luo Rong, Bao Xiongfei, Ma Gang, Jin Guoqing, Guo Chuanqin, Liu Zhanmin, Guo Zhijun, Tian Jianyong, Wang Weiguo, Wang Dongguang, Yan Yun, Chen Zhaoming, Cai Haiduo, Huang Zhuoyong, Wang Shimei, Zheng Jin, Zhu Lingfeng, Zhang Hua, Zheng Yuhong, and Guo Lu.IntroductionThe hollow post composite insulator for power stations is composed of a protective silicone rubber umbrella and an insulating hollow tube that bears mechanical loads. The mechanical load is transferred to the tube by the end fittings. The interior of the hollow tube is completely filled with insulating material and the tube is made of resin impregnated fiber. In substations, power station hollow post composite insulators are used as typical post insulators. Insulator materials and interfaces are based on GB/T 22079 conducts design tests. Some tests are classified as "design tests". These tests only need to be performed on insulators of the same design. All design tests for hollow post composite insulators for power stations shall be carried out in accordance with the general provisions of GB/T 22079. In terms of the design test, the time effect on the overall power station hollow post composite insulator and its components (tube material, umbrella cover, interface, etc.) to ensure a satisfactory service life under normal stress operating conditions. This document involves GB/T 21429-2008 and GB/T 25096-2010. Silicone rubber sheath materials with hydrophobicity and hydrophobicity migration properties (HTM) are preferred for hollow post composite insulators used in power stations. Silicone rubber is a widely recognized effective method to protect against severe pollution. The salt spray test specified in GB/T 22079 is used to quantify the hydrophobic migration characteristics. The hollow post composite insulator for power stations can be used in both AC and DC systems. Tracking and erosion tests are used to determine the minimum requirements for resistance of a material to tracking and erosion. AC voltage higher than 1000V and DC voltage higher than 1500V hollow post composite insulator for substation Definitions, test methods and acceptance criteria1 ScopeThis document applies to hollow post composite insulators for power stations, which are hollow insulating tubes, insulating The hollow post composite insulator for power stations defined in this document is composed of filling material, umbrella cover made of silicone rubber material and end metal accessories. Generally used for outdoor or indoor operation at an AC voltage higher than 1000V or a DC voltage higher than 1500V. environment. The purpose of this document is to. ---Define the terms used; ---Specify the test method; ---Specify acceptance criteria. This document does not specify the characteristic tests of electrical equipment of which hollow post composite insulators for station use may ultimately become components.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 8287.1-2008 Indoor and outdoor post insulators for systems with nominal voltages above 1000V Part 1.Porcelain or glass Tests on insulators (IEC 60168.2001, MOD) GB/T 18851.1-2012 Nondestructive testing Penetrant testing Part 1.General GB/T 19519-2014 Overhead line insulators for suspension and tension composite insulation for AC systems with nominal voltages above 1000V Sub-definitions, test methods and acceptance criteria (IEC 61109.2008, MOD) GB/T 21429-2008 Definition, test methods, acceptance criteria and design of hollow composite insulators for outdoor and indoor electrical equipment Recommended (IEC 61462.1998, MOD) Note. There is no technical difference between the referenced content of GB/T 21429-2008 and the referenced content of IEC 61462.2007. GB/T 22079 General definitions, test methods and acceptance criteria for high voltage polymer insulators for indoor and outdoor use (IEC 62217. 2012,MOD) GB/T 25096-2010 Definition, test methods and connection of composite insulators for power station posts for substations with AC voltage higher than 1000V Acceptance criteria (IEC 62231.2006, MOD)3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Composite hollow core station post insulator composite ho low core station post insulator An insulator consists of at least three insulating parts, namely an insulating tube, an umbrella sleeve and an internal filler. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 44179-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 44179-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. 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