Comprehensive Guide to Feichun A-2Y(L)2YB2Y H45 Railway Signalling Cable
The Feichun A-2Y(L)2YB2Y H45 Railway Signalling Cable is specifically engineered for the transmission of low-frequency signals in railway signaling systems, with a primary focus on applications such as axle counters and other signaling devices.
The cable provides essential functionality in environments where signal integrity is crucial, especially in railway infrastructure.
Key applications for this cable include:
- Axle counters: Ensuring accurate signal transmission for train detection.
- Track circuits: Maintaining consistent signaling across railway tracks.
- Control and safety systems: Reliable operation of safety features such as signal lights and gates.
The cable’s increased mechanical protection, provided by steel tape armoring, ensures that it can endure the harsh conditions of underground and trackside installations, guaranteeing long-term reliability in the most demanding environments.
1.2 Cable Construction Features
The Feichun A-2Y(L)2YB2Y H45 Cable features an advanced multi-quad construction, which significantly improves signal performance and reduces interference.
| Feature | Description |
|---|---|
| Stranding Pattern | n x 4 x 0.9 / 1.4 mm (multiple conductor strands for enhanced flexibility) |
| Mechanical Protection | Additional steel tape armoring for superior physical protection |
| Compliance | Meets Deutsche Bahn AG 416.0115 V 1.1 standards |
| Installation Capability | Suitable for direct burial or installation in ducts |
This robust construction provides the flexibility to install the cable in various railway applications while maintaining its mechanical integrity in extreme conditions.
2. Technical Construction
2.1 Conductor Specifications
The conductor of the Feichun A-2Y(L)2YB2Y H45 is made of bare copper, ensuring excellent electrical conductivity.
The stranding pattern is specifically designed for low-frequency signal transmission, making it suitable for signaling and communication systems in the railway industry.
| Conductor Type | Specification | Value |
|---|---|---|
| Conductor Material | Bare Copper | High conductivity |
| Stranding Pattern | n x 4 x 0.9 / 1.4 mm | Enhanced flexibility and signal clarity |
| Monitoring Conductor | Cu 0.5mm PE perforated | For monitoring signals |
| Loop Resistance | 0.9mm Conductor | ≤ 56.6 Ohm |
| Loop Resistance | 1.4mm Conductor | ≤ 23.4 Ohm |
This design ensures the cable performs effectively in railway signaling applications, offering low loop resistance and improved signal integrity.
2.2 Cable Layer Construction
| Layer | Material | Feature |
|---|---|---|
| Core Insulation | PE (Polyethylene) | Provides excellent insulation and durability |
| Shielding | Aluminium-Tape (0.15mm) | Copolymer coating for additional protection |
| Drain Wire | Tinned Copper (0.4mm) | Ensures grounding and signal clarity |
| Outer Sheath | PE (Polyethylene) | Resistant to UV and weathering |
| Armoring | Galvanized Steel Tape | Provides added mechanical protection |
This advanced cable construction helps ensure that the Feichun A-2Y(L)2YB2Y H45 can withstand extreme environmental conditions while maintaining excellent electrical performance.
3. Electrical Characteristics
3.1 Signal Transmission Properties
The signal transmission properties of the Feichun A-2Y(L)2YB2Y H45 Cable are key to its success in railway signaling. The cable is designed for low-frequency signal transmission and is optimized to minimize signal loss and interference.
| Property | Specification |
|---|---|
| Capacitance | ≤ 45 nF/km (for typical installations) |
| Capacitance (Single Quad) | ≤ 52 nF/km (in specific configurations) |
| Insulation Resistance | ≥ 10000 MΩ∙km |
| Test Voltage | 2.5 kV |
These electrical characteristics ensure the cable can reliably transmit low-frequency signals over long distances, essential for railway signaling systems.
3.2 Crosstalk Parameters
Crosstalk and interference can degrade signal quality in multi-quad cables, but the Feichun A-2Y(L)2YB2Y H45 minimizes this risk through precise design.
| Crosstalk Parameter | Specification |
|---|---|
| Capacitance Unbalance | k1 values (100%/50%) |
| Far-End Crosstalk Attenuation | At 90 kHz: Excellent attenuation |
| Attenuation Characteristics | Optimized at 90 kHz for low signal loss |
These specifications ensure signal integrity even in complex multi-quad installations, such as in axle counter systems and track circuits.
4. Installation Guidelines
4.1 Environmental Parameters
| Parameter | Specification |
|---|---|
| Operating Temperature | -40°C to +60°C |
| Installation Temperature | -10°C to +60°C |
The cable’s wide operating temperature range allows it to function in extreme weather conditions, making it ideal for installation in various climates.
4.2 Mechanical Installation
| Installation Type | Recommendation |
|---|---|
| Bending Radius | Multiple bends: ≥ 10 x diameter |
| Final Bending Radius | ≥ 7.5 x diameter |
| Pulling Force | Limit pulling force to prevent damage |
| Support Methods | Use cable support systems to prevent stress and wear |
The installation of the Feichun A-2Y(L)2YB2Y H45 requires attention to mechanical limits to ensure longevity and proper signal performance.
5. Applications in Railway Systems
5.1 Axle Counter Systems
Axle counters require precise signal transmission for accurate train detection. The Feichun A-2Y(L)2YB2Y H45 is designed to meet the rigorous demands of these systems.
| Application | Details |
|---|---|
| Signal Integrity | Critical for accurate axle counter readings |
| Compatibility | Works with various axle counter systems |
| Performance | Ensures optimized train detection |
5.2 Other Signaling Applications
The Feichun A-2Y(L)2YB2Y H45 is also suitable for a wide range of track circuits, control systems, and safety monitoring applications.
| Application | Details |
|---|---|
| Track Circuits | Reliable signal transmission for track status monitoring |
| Safety Systems | Integration with signaling safety systems |
| Control Systems | Ensures signal clarity for control commands |
6. Testing and Verification
6.1 Pre-installation Testing
Before installation, pre-installation testing should be performed to ensure the cable meets the required specifications.
| Test | Specification |
|---|---|
| Conductor Continuity | Verify that all conductors are continuous |
| Insulation Resistance | Measure to ensure ≥ 10000 MΩ∙km |
| Capacitance Testing | Confirm capacitance values ≤ 45 nF/km |
| Crosstalk Measurement | Test for minimal crosstalk interference |
6.2 Post-installation Testing
Once installed, the system should be tested to verify full functionality:
| Test | Specification |
|---|---|
| System Integration | Verify the entire system works correctly |
| Performance Verification | Test for proper signal transmission |
7. Common Installation Challenges
7.1 Physical Installation Issues
| Challenge | Solution |
|---|---|
| Pulling Force | Use appropriate tension limits and supports |
| Bending Radius | Ensure bending limits are followed |
7.2 Environmental Challenges
| Challenge | Solution |
|---|---|
| Temperature Fluctuations | Install according to temperature ranges |
| Moisture Protection | Ensure proper sealing for underground installations |
8. Maintenance and Troubleshooting
8.1 Preventive Maintenance
| Task | Frequency |
|---|---|
| Regular Inspections | Annually or as per environmental conditions |
| Testing | Perform routine testing as per standards |
8.2 Problem Resolution
| Issue | Solution |
|---|---|
| Signal Loss | Verify conductor continuity and insulation integrity |
| Physical Damage | Inspect for armoring and sheath integrity |
9. Quality Assurance
9.1 Manufacturing Standards
The Feichun A-2Y(L)2YB2Y H45 meets Deutsche Bahn AG standards, ensuring the cable is of the highest quality and reliability.
9.2 Performance Verification
The cable undergoes extensive field testing to verify long-term performance, ensuring it meets industry standards.
10. Safety and Compliance
10.1 Safety Standards
Installation and operation of the cable should follow all safety standards to ensure safe usage.
10.2 Regulatory Compliance
The cable complies with Deutsche Bahn AG standards and other relevant international standards, ensuring its reliability and safety in railway applications.
11. References
- Deutsche Bahn AG 416.0115 V 1.1
- Installation manuals
- Testing standards
- Safety regulations
This comprehensive guide provides valuable insights into the Feichun A-2Y(L)2YB2Y H45 Railway Signalling Cable, ensuring railway operators, engineers, and installers can confidently select and install this cable for optimal performance in demanding environments.
Note: This is just part of the standard parameters of our products. Please contact our Engineer if you need more. And the information contained within this webpage is for guidance only and is subject to change without notice or liability. All dimensions and specifications are nominal and are subject to normal manufacturing tolerances. All pictures shown are for illustration purposes only. The actual product may vary. All the information is provided in good faith and is believed to be correct at the time of publication.
