Feichun PROTOLON (M) R-(N)TSCGEWOEU LWL 20/35 kV: High-Performance Flexible Medium Voltage Cable for Extreme Industrial Applications
The Feichun PROTOLON (M) R-(N)TSCGEWOEU LWL 20/35 kV is an advanced medium-voltage flexible reeling cable, meticulously designed for extreme industrial environments.
Engineered to meet the challenges of high-voltage applications, it provides exceptional performance in demanding sectors like open-cast mining, heavy-duty industrial machinery, and mobile equipment operations.
This cable delivers reliability and resilience where electrical systems must endure mechanical stress, environmental exposure, and complex reeling configurations.
B. Unique Technological Proposition
Ultra-High Voltage Capability: Rated for 20/35 (42) kV applications, ensuring efficient power transmission.
Advanced Optical Integration: Embedded optical fibers for enhanced data transmission and monitoring.
Extreme Mechanical Stress Resistance: Designed for heavy-duty mechanical movement, including mono-spiral and cylindrical reel configurations.
Versatile Reel Configurations: Suitable for complex deployment in various industrial settings.
II. Comprehensive Certification and Standards
A. Regulatory Compliance
This cable adheres to stringent international safety and performance standards, offering reliability and peace of mind to operators:
| Standard | Description |
| EN 50525-2-21 | General requirements for flexible cables |
| DIN VDE 0207-21 | Insulating and sheathing material testing |
| DIN VDE 0298-3 | Minimum bending radius for reeling cables |
| DIN VDE 0250-813 | Specifications for reeling cables |
| DIN EN 60811-404 | Oil and flame resistance testing |
| GOST Fire Certification | Russian compliance for fire safety |
III. Technical Specifications
A. Electrical Characteristics
| Specification | Value |
| Rated Voltage | 20/35 (42) kV |
| Nominal Voltage | 35,000 V |
| Test Voltage | 50 kV |
| Max. Conductor Temp. | 90°C |
| Short Circuit Temp. | 250°C |
This cable’s robust electrical characteristics ensure consistent performance even under extreme operational conditions.
B. Conductor Engineering
Very Finely Stranded Copper: Provides excellent flexibility and current-carrying capacity.
Bare Conductor (Class FS): Optimized for high mechanical durability and conductivity.
IV. Advanced Structural Composition
A. Insulation and Layering Technology
| Layer | Material Description |
| Inner Semi-Conducting | Semi-conductive EPR for uniform stress distribution |
| Core Insulation | Specialized EPR Rubber (PROTOLON Compound) |
| Outer Semi-Conducting | Semi-conductive NBR with easy-strip technology |
B. Unique Design Features
Three-Core Design: Ensures even power distribution and mechanical balance.
Split Earth Conductor Configuration: Enhances safety and grounding.
Integrated Optical Element System: Facilitates seamless data transmission for modern industrial systems.
V. Optical Element Specification
A. Fiber Optic Integration
| Fiber Type | Attenuation (850/1310 nm) | Bandwidth |
| G62.5/125 μm Multi-mode | <3.3 dB/km | >400 MHz |
| G50/125 μm Multi-mode | <2.8 dB/km | >1200 MHz |
| E9/125 μm Single-mode | <0.4 dB/km (1550 nm) | High-Precision |
With low attenuation and high bandwidth, this optical system ensures accurate and fast data transmission even in harsh industrial environments.
VI. Mechanical and Environmental Performance
A. Mechanical Characteristics
| Specification | Value |
| Torsional Stress | ±100°/m |
| Tensile Strength | 20 N/mm² (static), 25 N/mm² (dynamic) |
| Travel Speed | 100 m/min (rewinding), 120 m/min (reeling) |
B. Bending Radius Specifications
| Operation Type | Minimum Radius |
| Fixed Installation | 6 × Cable Diameter |
| Flexible Operation | 10 × Cable Diameter |
| Directional Changes | 20 × Cable Diameter |
C. Environmental Resilience
| Property | Compliance |
| Temperature Range | -40°C to 80°C (fixed); -35°C to 80°C (flexible) |
| Flame Retardant | EN/IEC 60332-1-2 |
| Oil Resistant | Yes |
| UV Resistant | Yes |
| Seawater Resistant | Yes |
VII. Sheathing and Reinforcement
| Sheath Layer | Material |
| Inner Sheath | Rubber Compound 5GM3 |
| Outer Sheath | PCP Special Compound 5GM5 |
| Reinforcement | Braided Polyester |
VIII. Application Domain Analysis
A. Primary Use Cases
High-Voltage Excavator Systems: Reliable power for large mining equipment.
Mobile Crushers: Efficient energy transmission for mobility and performance.
Dumper Power Infrastructure: Durable, heavy-duty electrical connections.
Extreme Industrial Environments: Withstanding environmental and mechanical challenges.
B. Installation Considerations
Proper installation ensures optimal performance:
Deployment Strategies: Utilize proper reeling techniques to avoid twisting or damage.
Performance Optimization: Regular inspections and monitoring to maintain efficiency.
Operational Challenges: Address torsional and tensile stress through compliant configurations.
IX. Risk Mitigation and Performance Management
A. Potential Operational Challenges
Electrical Stress Factors: Minimized through advanced insulation layers.
Mechanical Wear: Reduced by reinforced sheathing and stranded copper conductors.
Environmental Degradation: Prevented by robust UV, oil, and seawater-resistant outer sheaths.
B. Preventive Maintenance Strategies
Inspection Protocols: Periodic reviews to identify wear and tear.
Performance Monitoring: Utilize integrated optical systems for real-time diagnostics.
Lifecycle Management: Replace components proactively based on usage data.
X. Market Positioning and Competitive Analysis
The Feichun PROTOLON 20/35 kV Cable stands out with:
High-Voltage Capability: Supporting extreme applications with reliability.
Integrated Optical Technology: Facilitating advanced industrial monitoring.
Environmental Robustness: Durability in challenging conditions.
XI. Professional Recommendations
A. Installation Best Practices
Follow recommended bending radius guidelines during installation.
Ensure compatible reel configurations to avoid mechanical stress.
B. Performance Optimization
Leverage optical monitoring systems for predictive maintenance and operational efficiency.
C. Expert Consultation
Engage with Feichun’s technical team for tailored solutions.
XII. Future Technological Perspective
The Feichun PROTOLON (M) R-(N)TSCGEWOEU LWL 20/35 kV represents the future of medium-voltage cables, integrating optical and electrical technologies for enhanced performance.
With advancements in materials and design, the cable’s capabilities are poised to expand further, meeting the ever-growing demands of industrial power systems.
Appendices
Technical Data Summary
| Specification | Value |
| Voltage Rating | 20/35 (42) kV |
| Temperature Range | -40°C to 80°C |
| Max. Travel Speed | 120 m/min |
| Bending Radius | 6×D to 20×D |
For further support, consult the Feichun technical team or visit our website for detailed manuals and resources.
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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Feichun PROTOLON (M) R-(N)TSCGEWOEU LWL 20/35 kV: High-Performance Flexible Medium Voltage Cable for Extreme Industrial Applications Images
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