Feichun FELTOFLEX Single-Core Medium and High Voltage Cables: Engineered for Opencast Mining Applications
Mining operations demand reliable and flexible power transmission solutions, especially in applications where equipment operates under extreme stress.
Feichun's FELTOFLEX single-core medium and high voltage cables are designed to meet these challenges, offering unmatched flexibility, durability, and performance.
These cables are ideal for installations requiring very small bending radii, such as switch-gear or transformer houses. They also excel in festoon systems, supporting speeds of up to 120 m/min.
With proven reliability in powering shiftable units, large drives, and mobile transformers, the FELTOFLEX series ensures seamless operations in even the harshest opencast mining environments.
Global Data
| Attribute | Detail |
| Brand | FELTOFLEX |
| Type Designation | NTMCWOEU |
| Standard Compliance | DIN VDE 0250-813 |
| Certifications/Approvals | Fire Certificate of Russian Federation, GOST K, GOST B |
These certifications reflect Feichun's commitment to global safety standards and product excellence.
Key Design Features
| Component | Specification |
| Conductor | Tinned copper, finely stranded (Class 5) |
| Insulation | EPR Rubber Compound, Type 3GI3 |
| Electrical Field Control | Inner and outer layers of semiconductive rubber; cold-strippable outer layer |
| Core Identification | Natural color in compliance with DIN VDE 0250 P 813 |
| Screen | Spinning of tinned copper wires |
| Outer Sheath | Rubber, compound type 5GM5, color: red |
Electrical Parameters
| Parameter | Value |
| Rated Voltage | 3.6/6 kV to 20/35 kV |
| Max. Operating Voltage (AC) | 4.2/7.2 kV to 24.2/42 kV |
| Max. Operating Voltage (DC) | 5.4/10.8 kV to 31.5/63 kV |
| AC Test Voltage | 11 kV to 50 kV |
The broad voltage range makes FELTOFLEX cables suitable for diverse applications in the mining industry.
Chemical Parameters
| Property | Performance |
| Fire Resistance | EN 60332-1-2, IEC 60332-1-2 |
| Oil Resistance | EN 60811-404, IEC 60811-404 |
| Weather Resistance | Suitable for outdoor use; resistant to UV, ozone, and moisture |
The outer sheath's resilience ensures uninterrupted performance, even in corrosive and weather-exposed environments.
Thermal Parameters
| Condition | Temperature Range |
| Max. Conductor Temperature | 90 °C |
| Short-Circuit Conductor Temp | 250 °C |
| Ambient Temp (Fixed) | -40 °C to 80 °C |
| Ambient Temp (Flexible) | -25 °C to 80 °C |
These parameters ensure reliability in extreme heat and cold, making FELTOFLEX cables suitable for varied climates.
Mechanical Parameters
| Parameter | Specification |
| Tensile Load | Max. 15 N/mm² |
| Torsional Stress | 25 °/m |
| Minimum Bending Radius | As per DIN VDE 0298 part 3 |
The small bending radius makes FELTOFLEX cables ideal for installations in confined spaces or on mobile systems.
How FELTOFLEX Cables Solve Problems
High Mechanical Stresses: With their robust construction, these cables handle high torsional and tensile loads without performance degradation.
Space Constraints: FELTOFLEX cables’ flexibility and small bending radius enable installation in tight spaces, such as switch-gear rooms.
Mobile Operations: Designed to withstand speeds of 120 m/min in festoon systems, they excel in dynamic environments.
Extreme Conditions: Resilience against heat, cold, UV, and moisture ensures reliability in all weather conditions.
Safety Standards: Compliance with fire resistance and oil resistance norms ensures operational safety.
Installation Tips and Best Practices
Handling and Storage
- Prevent Damage: Store cables in dry, ventilated areas to avoid exposure to excessive heat or moisture before installation.
- Uncoil Carefully: Avoid twisting or kinking during uncoiling.
Installation Guidelines
- Use Appropriate Clamps: Secure cables with clamps to minimize stress at bending points.
- Follow Bending Radius Rules: Ensure the bending radius adheres to standards for optimal performance.
Maintenance and Inspection
- Regular Inspections: Check for wear and tear periodically.
- Test Electrical Performance: Use recommended tools to confirm voltage capacity and insulation resistance.
Comparative Advantages of FELTOFLEX Cables
| Feature | FELTOFLEX Cables | Standard Cables |
| Flexibility | High flexibility for dynamic operations | Limited flexibility |
| Weather Resistance | Excellent UV, ozone, and moisture resistance | Moderate resistance |
| Voltage Range | Medium and high voltage (up to 35 kV) | Lower voltage capacities |
| Durability | Enhanced performance in harsh environments | May degrade under stress |
Applications in Opencast Mining
| Application | Advantages |
| Switch-Gear and Transformer Houses | Easy installation in confined spaces due to small bending radius |
| Festoon Systems | Smooth operation at speeds of up to 120 m/min |
| Mobile Transformers | Reliable power transmission in shifting environments |
| Large Drives | Consistent performance under heavy mechanical loads |
Conclusion
The Feichun FELTOFLEX single-core medium and high voltage cables are an ideal choice for opencast mining applications. With their unmatched flexibility, robust construction, and broad voltage capacity, these cables address the unique challenges of mining operations.
Their compliance with international standards and certifications ensures reliability, while features like small bending radii and weather resistance make them suitable for even the most 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.
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