Feichun PROTOMONT (V) 3kV & 6kV Advanced High-Voltage Power Solutions for Extreme Underground Mining Environments
Feichun PROTOMONT (V) 3kV & 6kV: Advanced High-Voltage Power Solutions for Extreme Underground Mining Environments
Underground mining demands robust, reliable power solutions to drive heavy machinery in challenging environments. Feichun PROTOMONT (V) 3kV & 6kV High-Voltage Coal Cutter Cables are engineered to meet the rigorous demands of underground mining equipment.

I. Executive Summary
The PROTOMONT (V) 3kV & 6kV cables are specialized high-voltage solutions tailored for mobile underground mining equipment such as coal cutting machines. Designed for extreme operational conditions, these cables feature:
- High-voltage capabilities (up to 6kV) for advanced equipment.
- Superior mechanical resilience to withstand harsh environments.
- Certifications from multiple international regulatory bodies.
II. Technical Specifications
A. Cable Construction and Design
Conductor Characteristics
- Material: Finely stranded tinned copper for superior conductivity.
- Design: Double concentric control/PE wire configuration.
- Innovation: Steel/copper wire layering for added strength and durability.
Core Configuration
- Main Cores: Three cores for power transmission, naturally colored.
- Control Cores: Precision blue cores for seamless control.
- Lay Length: Optimized arrangement (~6xD) to ensure consistent flexibility.
Insulation and Sheathing
| Layer | Material | Features |
|---|---|---|
| Insulation | Ethylene Propylene Rubber | High dielectric strength, compound type 3GI3. |
| Field Control | Semiconductive rubber layer | Cold strippable for easy maintenance. |
| Inner Sheath | Vulcanized EPR | Compound type GM1B for enhanced flexibility. |
| Armoring | Steel/copper wires | Provides mechanical strength and stress resistance. |
| Outer Sheath | Synthetic elastomer (5GM5) | Resistant to abrasion, oil, and environmental damage. |
B. Electrical Characteristics
| Parameter | 3kV | 6kV |
|---|---|---|
| Rated Voltage | 1.8/3kV | 3.6/6kV |
| Permissible Operating Voltage (AC) | 2.1/3.6kV | 4.2/7.2kV |
| Permissible Operating Voltage (DC) | 2.7/5.4kV | 5.4/10.8kV |
| AC Test Voltage | 11kV (main cores) | 11kV (main cores) |
| Maximum Conductor Temperature | 90°C | 90°C |
C. Performance Parameters
| Category | Specifications |
|---|---|
| Thermal Performance | -40°C to +80°C (fixed); -20°C to +60°C (flexible) |
| Maximum Tensile Load | 15 N/mm² |
| Minimum Bending Radius | 2.3x Diameter (at max. tensile load) |
| Fire Safety Compliance | EN 60322-1-2; IEC 60322-1-2 |
| Chemical Resistance | Oil, ozone, and moisture resistant |
III. Application Scenarios
The PROTOMONT (V) cables excel in various mining applications, including:
- Mobile high-voltage equipment: Powering dynamic machinery in confined underground spaces.
- Coal cutting machines: Providing stable energy for precision operations.
- Cable protection chain systems: Ensuring durability during continuous movement.
Unique features like high tensile strength and robust armoring make these cables indispensable for high-voltage applications in mining.
IV. Comparative Advantages
| Feature | Advantage |
|---|---|
| High-Voltage Capability | Supports advanced mining equipment. |
| Durability in Harsh Conditions | Resistant to mechanical stress and abrasion. |
| Global Compliance | Certified by multiple international standards. |
| Flexible Design | Accommodates dynamic movement and bending. |
These features translate into reliable performance and reduced downtime, ensuring maximum productivity.
V. Installation and Operational Considerations
Best Practices
- High-Voltage Installation: Ensure proper grounding and secure connections.
- Environmental Adaptation: Monitor temperature and moisture levels to prevent insulation degradation.
- Handling Guidelines: Use appropriate lifting techniques to avoid mechanical damage.
Potential Challenges
- High-Voltage Stress: Employ voltage monitoring systems to detect surges.
- Mechanical Wear: Regularly inspect for damage and replace sections when necessary.
- Temperature Fluctuations: Use protective coverings in extreme environments.
VI. Compliance and Certifications
The PROTOMONT (V) cables are certified to meet global safety and performance standards:
- DIN VDE 0250-813: German compliance for mining cables.
- MSHA P-07-KA140034: U.S. Mining Safety and Health Administration approval.
- WUG Certification: Poland-specific certification for the 6kV version.
- Russian Federation Fire Certificate: Ensuring fire safety compliance.
VII. Technical Support and Expert Insights
Professional Recommendations
- Selection Criteria: Consider voltage requirements, environmental factors, and cable flexibility.
- Failure Prevention: Avoid overloading and ensure regular inspections.
- Equipment Integration: Consult Feichun’s support team for customized solutions.
Feichun’s technical experts provide on-site assessments and tailored advice to optimize cable performance.
VIII. Conclusion
Feichun PROTOMONT (V) 3kV & 6kV High-Voltage Cables offer a powerful, reliable solution for demanding underground mining environments. Combining advanced materials, innovative design, and rigorous certifications, these cables provide unmatched performance in challenging conditions.
Whether you're powering high-voltage coal cutting machines or ensuring safe energy transmission in extreme environments, PROTOMONT (V) cables deliver superior results.
Appendix
| Number of Cores x Cross-Section | Outer Diameter (min-max) | Weight (kg/km) | Tensile Force (N) | Current (A) | Short Circuit Current (kA) |
|---|---|---|---|---|---|
| 3x35 + 3x(1.5) | 40 - 43 mm | 3300 | 1575 | 162 | 5.01 |
| 3x50 + 3x(1.5) | 45.4 - 48.4 mm | 4300 | 2250 | 202 | 7.15 |
| 3x70 + 3x(1.5) | 48.8 - 52.8 mm | 5400 | 3150 | 250 | 10.01 |
For more information, contact Feichun’s technical team or explore our customization options to meet your specific needs. Invest in reliability, invest in PROTOMONT (V).


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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