This part of GB/T 25020 stipulates the product classification, technical requirements, inspection rules, test methods, signs, factory certificates, storage and transportation of electrified railway catenary ring steel pipe pillars. This part is applicable to the electrified railway catenary ring-shaped steel pipe pillars. The same kind of catenary steel pipe pillars used in urban rail transit can refer to this part.
GB/T 25020.3-2010 history
2016GB/T 25020.3-2016 Steel pole for pole for overhead contact system of electrified railways.Part 3:Steel tube pole
2010GB/T 25020.3-2010 Steel pole for overhead contact system of electrified railway.Part 3:Steel tube pole