《中华人民共和国国家标准·电气化铁路接触网钢支柱第3部分：环形钢管支柱（GB\\T25020.3-2010 英文版）》由中华人民共和国铁道部提出。《中华人民共和国国家标准·电气化铁路接触网钢支柱第3部分：环形钢管支柱（GB\\T25020.3-2010 英文版）》由中铁电气化局集团有限公司归口。《中华人民共和国国家标准·电气化铁路接触网钢支柱第3部分：环形钢管支柱（GB\\T25020.3-2010 英文版）》起草单位：中国铁道科学研究院铁道建筑研究所、中铁电气化局集团有限公司、中铁电气化勘测设计研究院有限公司、中铁电气化局集团保定制品有限公司、铁道部产品质量监督检验中心、宝鸡接触网器材检测中心。

　　GB／T 25020“Steel Poles for Overhead Contact System of Electrified railways”is comprised
　　of 4 parts：
　　——Part 1：Lattice Pole；
　　——Part 2：Square Steel Tube Pole；
　　——Part 3：Ring Steel Tube Pole；
　　——Part 4：H Type Steel Pole．
　　This part is the third part of GB／T 25020．
　　This part is proposed by the Ministry of Railways．
　　This part is managed by China Railway Electrification Bureau(group)Co．，Ltd．
　　This part is mainly drafted by Wei Qiwei，Liu Fengtao，ji Zengyuan，An Xiangying，Wang Zuoxiang，Zhong Xinhua，Li Zhongran，Dai Xianxing and Wang Aijing．
　　This part is drafted by Railway Engineering Research Institute of China Academy of Railway Sciences，China Railway Electrification Bureau Group Co．，Ltd．，China Railway Electrification Survev and Design Research Institute Co．，Ltd．，Baoding Manufacture Co．，Ltd．of China Railway Electrification Bureau Group，Quality Supervision and Inspection Center for Railway Products of MOR and Baoji OCS Equipment Inspection Center．

Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Category and Name
5 Technical Requirements
6 Test Methods
7 Inspection Rules
8 Marking and Delivery Certificate
9 Storage and Transport
Appendix A Technical Requirements for Fluorine Carbon Coating System
Bibliography