According to the requirements in TB/T 2075 “Standard for OCS (Overhead contact line system) of electrified railway”, OCS parts and components consist of 24 parts, including: cantilever assembly, 2. Cantilever bracket, 3. steady arm with stop device, 4. steady arm without stop device, 5. Terminal anchor clamp, 6. Mid-point anchor assembly, 7. Integrated dropper and dropper clamp, 8. Stitch wire assembly, 9. Splice, 10. Overhead crossing, 11. Electrical connection assembly, 12. Pulley tensioning device, 13. Tooth wheel tensioning device; 14. Spring tensioning device; 15. Balance weight and balance weight guide frame, 16. Fixing device for Head span support, 17. Connection device of head span structure, 18. Suspension device of head span structure; 19. Earthing clamp and connection device, 20. Multi-function part for additional wire; 21. Horizontal suspension device in tunnel, 22. Support and steady device in tunnel, 23. Anchoring device in tunnel, 24. Preformed fittings

Composite insulator for OCS

Composite insulator which is at least made of core rod and sheds and equipped with rod shade insulators with fittings on ends. According to the requirements in TB/T 3199.2 “Insulators for OCS (Overhead contact line system) of electrified railway” “Part 2: rod shape composite insulators, insulators include five categories: composite insulators for cantilever, composite insulators on pole, composite insulators on cross bar, strain composite insulators (for suspension installation), composite insulators (for suspension installation) for registration

Rigid OCS parts and components

Sectional insulator

insulation parts and guide component are pinched in contact line to realize electrical sectioning between two adjacent contact lines of the same phase and allow passage of pantograph with uninterrupted current collection.