Catenary charged with the energy obtained from the traction substation electric locomotives delivered directly to the important task of Use

Catenary charged with the energy obtained from the traction substation electric locomotives delivered directly to the use of important tasks. Therefore, the quality of the catenary and working conditions electric meter affect the electrified railway transport capacity.
As set catenary is open, no backup, the load on the line is with power transformers to run along the contact line moving and changing, Catenary asked the following requirements:
1. In the high-speed operation and harsh Electric transformer, to ensure the flow of electric locomotives to take normal, requiring the catenary in the mechanical structure with the stability and sufficient flexibility.
2. Catenary equipment and parts must be interchangeable, should have sufficient resistance to abrasion and corrosion resistance and to try to extend the life of the equipment.
3. Catenary the insulation requirements, safety and reliability.