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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 17937-2024: Aluminuim-clad steel wires for electrical purposes Status: Valid GB/T 17937: Historical versions
Basic dataStandard ID: GB/T 17937-2024 (GB/T17937-2024)Description (Translated English): Aluminuim-clad steel wires for electrical purposes Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K11 Classification of International Standard: 29.060.10 Word Count Estimation: 18,158 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 17937-2009 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 17937-2024: Aluminuim-clad steel wires for electrical purposes---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.ICS 29:060:10 CCSK11 National Standards of People's Republic of China Replace GB/T 17937-2009 Aluminum clad steel wire for electrical use Released on 2024-04-25 2024-11-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Categories 1 4:1 Level 1 4:2 Type 2 5 Technical Requirements 2 5:1 Materials 2 5:2 Appearance 2 5:3 Deviation from nominal diameter 2 5:4 Minimum aluminum layer thickness 2 5:5 Tensile strength 3 5:6 Elongation 3 5:7 Resistivity 3 5:8 Torsional performance 3 5:9 Stress at 1% elongation 3 5:10 Linear expansion coefficient 5 5:11 Connectors 5 6 Test methods 5 6:1 Appearance 5 6:2 Diameter 5 6:3 Breaking strength 5 6:4 Elongation 6 6:5 Torsion 6 6:6 Aluminum layer thickness 6 6:7 Resistivity 6 6:8 Stress at 1% elongation 7 6:9 Linear expansion coefficient 7 6:10 Connectors 7 7 Inspection Rules 7 8 Delivery Length and Packaging 8 9 Acceptance and rejection 8 Appendix A (Informative) Aluminum Clad Steel Wire Parameters 9 Table 1 Diameter deviation 2 Table 2 Minimum aluminum layer thickness 2 Table 3 Tensile strength, elongation and resistivity requirements of aluminum clad steel wire (before stranding) Table 4 Linear expansion coefficient of aluminum-clad invar wire 5 Table 5 Determination of initial values of stress at 1% elongation and elongation at break 6 Table 6 Test items for aluminum clad steel wire 7 Table A:1 Nominal density of aluminum clad steel wire 9 Table A:2 Standard ratio of aluminum to steel 9 Table A:3 Electrical conductivity 10 Table A:4 Aluminum layer thickness 11 Table A:5 Physical constants 11ForewordThis 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 replaces GB/T 17937-2009 "Aluminum clad steel wire for electrical use": Compared with GB/T 17937-2009, except for structural adjustment and In addition to logical changes, the main technical changes are as follows: --- Added grades and types (see Chapter 4); --- Added 25%IACS conductivity grade aluminum clad steel wire, 10%IACS and 14%IACS conductivity grade aluminum clad invar wire (see 4:1); --- Added the minimum aluminum layer thickness requirements for LB25, LBY10 and LBY14 (see 5:4); ---Changed the tensile strength, stress at 1% elongation and elongation of LB14 and LB20, changed the tensile strength and 1% elongation of LB23 Long-term stress, increased tensile strength, 1% elongation stress, elongation and resistivity requirements for LB25, LBY10 and LBY14 (See Table 3, Table 4 of the:2009 edition); --- Added torsional performance requirements for aluminum-clad Invar wire (see 5:8); --- Added the requirements and test methods for the linear expansion coefficient of aluminum-clad Invar steel (see 5:10 and 6:9); --- Changed the requirements for joints (see 5:11, 4:11 of the:2009 edition); --- Added appearance test method (see 6:1); --- Added diameter test method (see 6:2); --- Changed some contents of the tensile strength test method (see 6:3, 6:3:1 of the:2009 edition); --- Added the initial values for determining the stress at 1% elongation and the total elongation at break (see 6:4); --- Added test methods for joints (see 6:10); --- Added linear expansion coefficient test items (see 7:2): 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 Bare Wires (SAC/TC422): This document was drafted by: Shanghai Cable Research Institute Co:, Ltd:, Huangshan Chuangxiang Technology Co:, Ltd:, Jiangsu Zhongtian Technology Co:, Ltd: Company, Hubei Changtian Communication Technology Co:, Ltd:, Changzhou Tefa Huayin Wire and Cable Co:, Ltd:, Far East Cable Co:, Ltd:, Jiangsu Guansheng Superconducting Technology Co:, Ltd:, Hebei Xingtai Cable Co:, Ltd:, Shanghai Guolan Testing Co:, Ltd:, Jiangsu Hengtong Electric Power Intelligent Network Technology Co:, Ltd: Company, Henan Tongda Cable Co:, Ltd:, Jiangsu Tongguang Qiangneng Transmission Line Technology Co:, Ltd:, State Grid Smart Grid Research Institute Co:, Ltd:, Yunnan Duobao Cable Group Co:, Ltd:, Wuxi Jiangnan Cable Co:, Ltd:, Hangzhou Cable Co:, Ltd:, Qingdao Hancable Co:, Ltd: Company, Guangdong Xinya Optical Cable Co:, Ltd:, Changfei Optical Fiber and Cable Co:, Ltd:, Guizhou Yudie Electric Co:, Ltd:, TBEA Shandong Luneng Taishan Cable Co:, Ltd:, TBEA Xinjiang Cable Co:, Ltd:, Kunming Cable Group Kun Electric Cable Co:, Ltd:, Zhejiang Guanming Electric Power New Materials Co:, Ltd: and State Grid Liaoning Electric Power Co:, Ltd: The main drafters of this document are: Dang Peng, Li Guoxing, Xu Rui, Wang Fuqiang, Wang Wenhui, Yang Minxin, Gao Zhan, Xu Jing, Sun Genrong, Meng Guangji, Wu Songmei, Wang Junqi, Shi Haifeng, Chen Baoan, Zheng Xiaobin, Zhang Chuansheng, Hu Jianming, Zhao Xinyuan, He Yunping, Jiang Jianhua, Chen Guangquan, Xing Shoujiang, Zhang Jinyu, Song Canfeng, Tu Guanming, and Yang Changlong: The previous versions of this document and the documents it replaces are as follows: ---First published in:1999 as GB/T 17937-1999; ---First revised in:2009 to GB/T 17937-2009; ---This is the second revision: Aluminum clad steel wire for electrical use1 ScopeThis document specifies the classification, technical requirements, inspection rules, delivery length and packaging, acceptance and rejection of aluminum clad steel wire for electrical use: Corresponding test methods: This document is applicable to electrical hard-drawn bare aluminum-clad steel wires with different electrical and mechanical properties, including those used in overhead stranded wires and all aluminum Manufacturing, testing and application of aluminum-clad steel wire and aluminum-clad invar wire for steel stranded wire: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 3048:2 Test methods for electrical properties of wires and cables Part 2: Resistivity test of metallic materials GB/T 4339 Determination of characteristic parameters of thermal expansion of metallic materials GB/T 4909:3 Test methods for bare wires Part 3: Tensile test GB/T 4956 Measurement of coating thickness of non-magnetic coatings on magnetic substrates - Magnetic method GB/T 6462 Metal and oxide coating thickness measurement microscope method3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 Invar An iron-nickel alloy with a low coefficient of linear expansion: 3:2 Aluminum-clad steel wire A round wire consisting of a round steel (carbon steel or Invar) wire covered with a uniform and continuous layer of aluminum:4 Categories4:1 Level Aluminum clad steel wire is divided into LB14, LB20, LB23, LB25, LB27, LB30, LB35 and LB40 grades according to conductivity: The rates were 14%IACS, 20:3%IACS, 23%IACS, 25%IACS, 27%IACS, 30%IACS, 35%IACS and 40% respectively: IACS: Aluminum clad Invar wire is divided into LBY10 and LBY14 grades according to conductivity, and their corresponding conductivity is 10% IACS and 14% respectively: IACS: Note: IACS stands for International Annealed Copper Standard: The calculation method of the conductivity of aluminum-clad steel wire is shown in A:3 in Appendix A: ...... |
