Feichun MOVIS 9GKW: Screened Power Cables for Flexible Connections in Railway Rolling Stock
Railway engineers, rolling stock designers, and safety personnel are constantly seeking innovative solutions to ensure reliable power transfer in dynamic environments. For applications requiring flexible and durable power connections, Feichun MOVIS 9GKW Screened Power Cables stand out as an excellent choice.
Designed for use in railway rolling stock, these cables offer exceptional flexibility, fire safety, and compliance with stringent industry standards.
This article delves into the technical details, practical considerations, and real-world benefits of the Feichun MOVIS 9GKW cables, emphasizing their use in flexible interconnections, switchgear, and accumulator circuits.
Introduction: Ensuring Reliable Power in Railway Systems
Railway rolling stock operates in challenging environments where cables must endure vibrations, bending, and exposure to extreme conditions. Traditional power cables often fail to meet these demands, leading to costly maintenance and safety risks.
The Feichun MOVIS 9GKW Screened Power Cable is specifically engineered for such challenges. This 3.6/6 kV cable combines flexibility, electromagnetic compatibility (EMC), and exceptional fire safety to provide a robust solution for:
- Flexible connections between coaches or bogies.
- Auxiliary circuits operating at line voltage.
- Electric heating systems.
- Switchgear and accumulator circuits.
Key Features at a Glance
| Feature | Benefit |
|---|---|
| Flexible Design | Supports dynamic applications like moving connections between rolling stock components. |
| EMC Shielding | Reduces interference with sensitive electronics in modern trains. |
| Fire Safety Compliance | Meets DIN EN 45545-1 HL1, HL2, HL3 standards for hazard levels in railway vehicles. |
| Durable Construction | Resistant to oils, ozone, and mechanical stress, ensuring long service life. |
Cable Construction and Technical Specifications
Understanding the construction of Feichun MOVIS 9GKW cables is crucial for assessing their suitability for specific applications.
Here’s a detailed breakdown:
1. Cable Components
| Component | Specification | Benefit |
|---|---|---|
| Conductor | Tinned, finely stranded Class 5 copper (per IEC 60228). | Flexibility and corrosion resistance, ideal for dynamic applications. |
| Insulation | Cross-linked LS0H (Low Smoke Zero Halogen). | Minimizes toxic gas and smoke emissions during a fire. |
| Screening | Tinned copper braid. | Provides EMC protection and reduces electromagnetic interference (EMI). |
| Outer Sheath | EVA (Ethylene Vinyl Acetate) rubber. | Flame-retardant, oil-resistant, and ozone-resistant, ensuring durability in harsh environments. |
2. Electrical Characteristics
| Parameter | Value | Explanation |
|---|---|---|
| Rated Voltage (U0/U) | 3.6/6 (7.2) kV. | Suitable for railway traction circuits and auxiliary systems. |
| Test Voltage | 11 kV. | Ensures reliability under high-voltage conditions. |
3. Thermal Performance
| Metric | Value | Importance |
|---|---|---|
| Max Conductor Temp (Operation) | 120°C. | Supports high current-carrying capacity. |
| Max Conductor Temp (Short Circuit) | 250°C. | Provides safety during fault conditions. |
4. Mechanical Properties
| Metric | Value | Explanation |
|---|---|---|
| Permanent Tensile Strength | 15 N/mm². | Ensures durability during installation and use. |
| Bending Radius | Fixed: 3xD (D≤12 mm), 4xD (D>12 mm). | Prevents damage during fixed installation. |
| Flexible: 4xD (D≤12 mm), 5xD (D>12 mm). | Maintains cable integrity in dynamic applications. |
5. Environmental Performance
| Parameter | Value | Benefit |
|---|---|---|
| Temperature Range | -40°C to 120°C. | Suitable for extreme temperature variations. |
| Resistance | Oils, greases, ozone, and UV radiation. | Ideal for outdoor and industrial environments. |
Compliance with Industry Standards
Feichun MOVIS 9GKW cables comply with a wide range of international standards, ensuring reliability, safety, and interoperability in railway systems.
| Standard | Description | Importance |
|---|---|---|
| DIN EN 45545-1:2013 | Fire protection on railway vehicles (HL1, HL2, HL3). | Ensures passenger safety by meeting hazard level requirements. |
| DIN EN 50355 | Rolling stock cables - Special fire performance. | Guarantees durability and safety in railway applications. |
| DIN EN 50343 | Installation rules for cabling in railway vehicles. | Facilitates proper installation and maintenance practices. |
| DIN VDE 0100-520 | Erection of low-voltage installations. | Supports unfused connections in switchgear and distribution boards. |
Practical Considerations for Installation and Use
1. Installation Tips
Proper handling and installation of Feichun MOVIS 9GKW cables are crucial for optimal performance:
| Consideration | Recommendation | Benefit |
|---|---|---|
| Handling | Avoid excessive bending or pulling during installation. | Prevents damage to the conductor or insulation. |
| Bending Radius | Adhere to specified bending radius requirements. | Ensures long-term cable reliability. |
| Screen Termination | Properly terminate and ground the screening. | Enhances EMC performance and reduces interference. |
2. Maintenance Guidelines
| Maintenance Activity | Frequency | Purpose |
|---|---|---|
| Visual Inspections | Quarterly or after major operations. | Detects signs of wear or mechanical damage. |
| Electrical Testing | Annually. | Ensures insulation integrity and performance. |
| Screen Integrity Check | As needed. | Maintains effective EMC shielding. |
Challenges and Solutions
| Challenge | Solution |
|---|---|
| Limited space for routing cables. | Use flexible conduits or trays to optimize cable management. |
| High vibration environments. | Employ proper clamps and supports to minimize mechanical stress. |
| EMC requirements in crowded systems. | Ensure proper grounding and use of screened cables like Feichun MOVIS 9GKW. |
Conclusion: Why Choose Feichun MOVIS 9GKW?
The Feichun MOVIS 9GKW Screened Power Cable is a versatile, high-performance solution for railway rolling stock and related applications. Its flexibility, fire safety, and compliance with DIN EN 45545-1 and other standards make it a reliable choice for modern railway systems.
For technical support, product inquiries, or additional documentation, contact Feichun today.
