Railway catenary system crossbeam girders are horizontal elements connecting catenary poles, providing necessary rigidity and stability to the structure. They maintain the contact wire in a specified position, ensuring reliable power supply to rolling stock.

Classification of Girders:

1. By design:
   • Single-span girders: used to span one section between poles.
   • Multi-span girders: utilized to span multiple sections, providing additional structural rigidity.
2. By material:
   • Steel girders: offer high strength and durability.
   • Aluminum girders: characterized by lighter weight and corrosion resistance.

Technical Specifications:

• Girder length: determined by the distance between poles and may vary based on design requirements.
• Load capacity: girders are designed for specific mechanical loads, including the weight of contact wires and external factors.
• Corrosion protection: to extend service life, girders are coated with special protective compounds or undergo hot-dip galvanizing.

Advantages of Using Catenary System Crossbeam Girders:

• Ensuring catenary system stability: girders maintain contact wires in the specified position, preventing sagging and displacement.
• Enhancing power supply reliability: the rigid structure ensures stable electricity transmission to rolling stock.
• Durability: the use of quality materials and corrosion protection ensures a long service life for the girders.

‍