Contact Wire
01- Application
- Overhead contact line for railway electrification
- Material
- Copper-silver alloy CuAg0.1
- Cross-section
- 120 mm²
- Standard
- EN 50149
Railway Solutions / 01
Railway Electrification & OCS
Overhead contact systems, catenary components, cantilevers, clamps, connectors, droppers, insulators, tensioning equipment and support structures.
Overview
SIMI Rail supports electrification and overhead contact system packages by connecting project requirements with qualified manufacturing partners in China.
Components are supplied according to the drawings, specifications and standards defined by the project, with engineering communication handled by our Shanghai-based team.
Because OCS packages combine many small interfacing parts, we work from the project component list and clarify each interface, material and surface treatment requirement with the manufacturer before production is released.
SIMI Rail support
Technical requirement and drawing review
Supplier qualification for electrification components
Manufacturing coordination and production follow-up
Dimensional, material and surface treatment inspection
Technical reference
Applicable Standards
OCS components and conductors are coordinated according to project-specific technical requirements and applicable international standards. Material certificates, manufacturer documentation, drawings and inspection records can be provided according to project requirements.
OCS Conductors
Contact Wire
- EN 50149
Messenger Wire
- DIN 48201
Return / Earth Wire
- EN 50182
- EN 60889
- EN 50189
OCS Components
Cantilever Assemblies
- EN 50119
- ISO 2768-v
Registration / Steady Arms
- EN 1706
- EN 10088
- EN 755-2
Droppers & Clamps
- EN 12165
Insulators
- IEC 61109
Support Structures & Fasteners
- DIN 933
- DIN 934
- DIN 125
- DIN 127
- EN ISO 898-1
- EN 10025
Scope of supply
Products & components
01
Overhead contact system components
02
Catenary wires and fittings
03
Cantilevers and support assemblies
04
Clamps, connectors and droppers
05
Insulators and insulation components
06
Tensioning and compensation equipment
07
Masts and support structures
08
Customized electrification components
Products are manufactured by qualified manufacturing partners according to project drawings, specifications and applicable standards. SIMI Rail provides engineering coordination, manufacturing coordination and quality control.
Technical supply
OCS Conductors
Conductor requirements are coordinated against project drawings, electrical and mechanical criteria, and the applicable product standards before manufacturing release.
Standards & complianceMessenger Wire
02- Application
- Catenary messenger / support wire
- Material
- Hard-drawn copper stranded, CuMg0.4
- Cross-section
- 70 mm²
- Standard
- DIN 48201-2
Dropper Wire
03- Application
- Equipotential connection between messenger and contact wire
- Material
- CuMg0.4
- Cross-section
- 10 mm²
- OCS system requirements
- EN 50119
Return / Earth Wire
04- Application
- Traction return, earthing and feeder
- Material
- Aluminium + galvanized steel
- Standards
- EN 50182, EN 60889, EN 50189
Applications
Where it is used
Mainline electrification projects
Metro and light rail systems
Depot and stabling yard electrification
Electrification renewal and upgrade works
Spare part and replacement packages
Tunnel and station electrification sections
Technical focus
Electrical and mechanical interfaces
Current-carrying capacity, contact geometry and mechanical load requirements are confirmed against the project specification before manufacturing starts.
Materials and surface treatment
Copper alloys, aluminium alloys, stainless steel and galvanized steel requirements are defined per component, including coating thickness where specified.
Interchangeability
Where components must fit an existing installed system, samples or reference drawings are used to verify dimensions before series production.
How we work
Project sequence
01
Requirement review
Component list, drawings and applicable standards are reviewed with the customer's engineering team.
02
Partner selection
Manufacturing partners are shortlisted based on the specific component group and required processes.
03
Production coordination
Production planning, samples where required, and progress reporting through manufacturing.
04
Inspection and delivery
Dimensional and surface treatment checks, packing control and logistics coordination.
