GB/T 25020.1-2025 English PDFUS$679.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25020.1-2025: Pole for overhead contact system of electrified railways - Part 1: Steel pole Status: Valid GB/T 25020.1: Historical versions
Basic dataStandard ID: GB/T 25020.1-2025 (GB/T25020.1-2025)Description (Translated English): Pole for overhead contact system of electrified railways - Part 1: Steel pole Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: S82 Classification of International Standard: 29.280 Word Count Estimation: 34,349 Date of Issue: 2025-01-24 Date of Implementation: 2025-08-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 25020.1-2025: Pole for overhead contact system of electrified railways - Part 1: Steel pole---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.National Standard of the People's Republic of China ICS 29.280CCS S 82 Electrified railway overhead wire support Part 1.Steel Support Pole for overhead contact system of electrified railways- Part 1.Steel pole 2025-01-24 Release 2025-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Replace GB/T 25020.1-2010, GB/T 25020.3-2016, GB/T 25020.4-2016 Table of ContentsPreface Ⅲ Introduction...Ⅴ 1 Scope...1 2 Normative references ...1 3 Terms and Definitions 2 4 Classification and representation methods 2 4.1 Classification 2 4.2 Representation method 3 5 Technical requirements 3 5.1 General requirements 3 5.2 Materials 4 5.3 Manufacturing requirements 4 5.4 Dimensional deviation ...5 5.5 Structural performance 6 6 Test methods 7 6.1 Dimensions 7 6.2 Plating 7 6.3 Structural performance 7 7 Inspection Rules 7 7.1 Inspection classification 7 7.2 Factory Inspection 7 7.3 Type inspection 8 8 Marking and product certification 10 9 Storage and Transportation...10 Appendix A (Normative) Pillar dimensions and test bending moment 11 Appendix B (Normative) Pillar structure performance test method 22ForewordThis 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 is required. This document is Part 1 of GB/T 25020 "Electrified Railway Contact Network Pillar". GB/T 25020 has been published in the following parts. --Part 1.Steel pillars. This document replaces GB/T 25020.1-2010 "Electrified railway overhead contact network steel pillars Part 1.Lattice pillars", GB/T 25020.3-2016 "Electric railway overhead contact network steel pillars Part 3.Annular steel tube pillars" and GB/T 25020.4-2016 "Electric Railway Catenary Steel Pillars Part 4.H-Shaped Pillars", this document revise and consolidate GB/T 25020.1-2010, GB/T 25020.3-2016 and GB/T 25020.4-2016, compared with the above documents, in addition to structural adjustments and editorial changes, the main technical The technical changes are as follows. a) Added technical requirements for steel plates (see 5.2.1.2); b) Added technical requirements for angle steel (see 5.2.1.3); c) Added technical requirements for H-shaped steel (see 5.2.1.4); d) The ambient temperature requirements for steel shearing and cutting have been changed (see 5.3.2.5, 5.3.1.2 of GB/T 25020.1-2010, GB/T 25020.3-2016, 5.3.2.2, GB/T 25020.4-2016, 5.3.2.3); e) The technical requirements for coating surface quality have been changed (see 5.3.5.1, 5.4.2.1 of GB/T 25020.1-2010, GB/T 25020.3- 2016, 5.5.1, GB/T 25020.4-2016, 5.4.1.2); f) The technical requirements for coating thickness have been changed (see Table 1, 5.4.4.1 of GB/T 25020.1-2010, GB/T 25020.3-2016 GB/T 25020.4-2016, 5.4.3; GB/T 25020.4-2016, 5.4.1.5); g) The technical requirements for the overall dimensions of components have been changed (see Table 2, Table 3, Table 4, Table 3 of GB/T 25020.1-2010, Table 3 of GB/T 25020.3- 2016, Table 3 of GB/T 25020.4-2016); h) The requirements for factory inspection batches have been changed (see 7.2.3, 7.1.2 of GB/T 25020.1-2010, GB/T 25020.3-2016 GB/T 25020.4-2016, 7.1.2); i) The qualification determination method has been changed (see 7.2.4, 7.3.4, 7.1.4, 7.2.4 of GB/T 25020.1-2010, GB/T 25020.3- 2016, 7.1.4, 7.2.4, GB/T 25020.4-2016, 7.1.4, 7.2.4) j) The requirements for type inspection conditions have been changed (see 7.3.1, 7.2.1 of GB/T 25020.1-2010, GB/T 25020.3-2016 GB/T 25020.4-2016, 7.2.1); k) The model of lattice support columns has been changed (see Table A.1, 4.1 of GB/T 25020.1-2010); l) Added the requirements for the bearing capacity test bending moment of lattice columns in the direction parallel to the line (see Table A.2); m) The model of H-shaped support has been changed (see Table A.4, 4.1 of GB/T 25020.4-2016); n) The tapered steel tube support type has been deleted (see Table 2 of GB/T 25020.3-2016); o) The requirements for paint application have been deleted (see 5.4.6 of GB/T 25020.3-2016 and 5.4.2 of GB/T 25020.4-2016). 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 and coordinated by the National Technical Committee for Standardization of Rail Transit Electrical Equipment and Systems (SAC/TC 278). This document was drafted by. Railway Construction Research Institute of China Academy of Railway Sciences Group Co., Ltd., China Railway Electrification Bureau Group Co., Ltd. Co., Ltd., China Railway Electrification Survey and Design Institute Co., Ltd., China Railway Electric Engineering Products Co., Ltd., China Railway Design Group Co., Ltd., China Railway Inspection and Certification Center Co., Ltd. The main drafters of this document are. Zhong Xinhua, Su Wanyu, Sun Mingxin, Zhou Qibin, Liu Fengtao, Xu Weichao, Zhang Manhua, Xing Tong, Qu Yanan, Hu Huiliang and Wang Jiahe. The previous versions of this document and the documents it replaces are as follows. --GB/T 25020.1-2010; --GB/T 25020.3-2010, first revised in.2016; --GB/T 25020.4-2010, first revised in.2016.IntroductionElectrified railway contact network pillars are divided into steel pillars and concrete pillars according to their materials. In order to unify technical requirements and enhance versatility, GB/T 25020 "Electrified Railway Contact Network Pillars" provides requirements and guidelines for contact network pillars and is intended to consist of two parts. -- Part 1.Steel pillars. The purpose is to specify the classification, technical requirements, test methods, inspection and Rules, etc. -- Part 2.Concrete pillars. The purpose is to specify the classification, technical requirements, test methods and other requirements of concrete pillars for electrified railway overhead contact lines. Laws, inspection rules, etc. Electrified railway overhead wire support Part 1.Steel Support1 ScopeThis document specifies the classification and representation methods, technical requirements, test methods, inspection rules, and markings of steel pillars for electrified railway contact networks. And product certification, storage and transportation. This document is applicable to steel pillars of electrified railway contact networks, and shall be used as a reference for similar pillars used in urban rail transit.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 41 Type 1 Hexagon Nuts Grade C GB/T 95 Flat Washers Grade C GB/T 97.1 Flat washers Grade A GB/T 470 Zinc Ingot GB/T 699 High-quality carbon structural steel GB/T 700 Carbon structural steel GB/T 706 Hot-rolled steel sections GB/T 709 Dimensions, shapes, weights and tolerances of hot-rolled steel plates and strips GB/T 711 High-quality carbon structural steel hot-rolled plates and strips GB/T 1591 Low alloy high strength structural steel GB/T 2694-2018 Technical requirements for the manufacture of transmission line towers GB/T 3098.1 Mechanical properties of fasteners Bolts, screws and studs GB/T 3098.2 Mechanical properties of fasteners - Nuts GB/T 3274 Hot-rolled carbon structural steel and low alloy structural steel plates and strips GB/T 5117 Welding rods for non-alloy steel and fine grain steel GB/T 5118 Heat-resistant steel welding rods GB/T 5267.3 Hot-dip galvanized coating on fasteners GB/T 5293 Classification requirements for solid welding wires, flux-cored welding wires and welding wire-flux combinations of non-alloy steel and fine-grained steel for submerged arc welding GB/T 5780 Hexagon head bolts Grade C GB/T 5782 Hexagon head bolts GB/T 6170 Type 1 Hexagon Nuts GB/T 8110 Solid welding wire for non-alloy steel and fine grain steel for gas shielded arc welding GB/T 10045 Flux-cored welding wire for non-alloy steel and fine grain steel GB/T 12470 Classification requirements for heat-resistant steel solid welding wire, flux-cored welding wire and welding wire-flux combinations for submerged arc welding GB/T 13912 Technical requirements and test methods for hot-dip galvanized coatings on metallic coatings of steel products GB/T 17493 Heat-resistant steel flux-cored welding wire ...... |
