Feichun PROTOMONT Type 631: Advanced Flexible Trailing Cables for Extreme Underground Mining Environments

Feichun PROTOMONT Type 631 Flexible Trailing Cable represents a cutting-edge solution for underground mining operations. Designed to meet the demanding conditions of modern mines, this cable provides superior electrical and mechanical performance in extreme environments.

Whether it’s the high-tension areas of roadway extension systems or complex mining machinery, the Type 631 is engineered for flexibility, durability, and safety.

• Brand: Feichun PROTOMONT

• Product Designation: Type 631 Flexible Trailing Cable

• Compliance Standard: British Standard BS 6708

• Primary Application: Underground Mine Roadway Extension Cables

Key Benefits:

• Exceptional mechanical protection for tough mining conditions.

• Fire-resistant and oil-resistant to meet harsh underground mining standards.

• Designed for long-term durability with flexible operation in varying temperatures.

II. Technical Specification Highlights

Feichun PROTOMONT Type 631 offers outstanding technical specifications, making it a reliable choice for harsh underground mining environments.

The following features are tailored to meet the most stringent mining conditions.

A. Electrical Characteristics

• Rated Voltage: 3.8/6.6 kV for enhanced power transmission.

• Maximum Operating Voltages: Ensures system stability in high-voltage applications, with a maximum AC voltage of 7.2 kV and DC voltage of 10.8 kV.

• AC Test Voltage: 11 kV to provide extra assurance in safety testing.

B. Conductor Construction

The Type 631 cable features finely stranded tinned copper conductors (Class 5 according to BS 6360) that ensure excellent electrical conductivity and long-term durability.

The core color coding (red, yellow, and brown) simplifies installation and reduces the chance of errors.

C. Insulation and Sheathing

The PROTOLON insulation (Ethylene Propylene Rubber) ensures excellent temperature stability and electrical insulation. The CR inner sheath and PROTOFIRM outer sheath provide an additional layer of protection against environmental stressors such as oils, moisture, and abrasion.

The composite copper/nylon braid phase core screening ensures electrical safety and reduces interference.

D. Mechanical Protection

The galvanized steel wire armoring offers superior mechanical protection, ensuring the cable can withstand the high abrasion and impact forces typically encountered in underground mining.

The tensile load of 15 N/mm² makes it suitable for heavy-duty applications, while the bending radius is designed to prevent damage from bending or twisting.

III. Performance Capabilities

A. Environmental Resistance

Feichun PROTOMONT Type 631 is engineered to operate reliably under extreme environmental conditions, typical of underground mining operations.

The cable exhibits the following resistance characteristics:

• Fire Resistance: The EN 60332-1-2 and IEC 60332-1-2 compliance ensures that the cable is fire-resistant and will not spread flames in the event of a fire.

• Oil Resistance: With EN 60811-404 certification, this cable resists degradation from oils, making it suitable for environments where exposure to oil is a concern.

• Weather Protection: Suitable for both indoor and outdoor use, the Type 631 cable is ozone and moisture resistant, ensuring it can withstand varying weather conditions.

B. Temperature Performance

The Type 631 cable is designed to perform in extreme temperatures, typical of underground mining environments. Below are the temperature performance details:

• Maximum Conductor Temperature: 90°C for continuous operation.

• Short Circuit Conductor Temperature: 250°C for short circuit conditions.

• Temperature Range: This cable remains fully operational across a wide range of temperatures, from -40°C to +80°C for fixed installations and -25°C to +60°C for flexible operations.

IV. Key Application Considerations

A. Underground Mining Environment Challenges

Underground mining presents unique challenges that demand reliable and robust cables. The main issues include:

• Extreme temperature variations that can affect cable performance.

• Mechanical stress, such as bending, abrasion, and tension.

• Exposure to oils, chemicals, and other harsh elements.

• The need for robust electrical insulation to prevent failure.

B. Unique Design Advantages

The Feichun PROTOMONT Type 631 cable is built to tackle these challenges:

• Enhanced Flexibility: Designed for complex mine layouts, it offers exceptional flexibility while maintaining durability.

• Superior Protection: The combination of tinned copper conductors, PROTOLON insulation, and galvanized steel wire armoring ensures that it can withstand physical, electrical, and environmental stresses.

• Long-Term Reliability: With fire resistance, oil resistance, and weather protection, this cable is built to last in the harshest conditions.

V. Installation and Maintenance Recommendations

A. Installation Guidelines

Proper installation is crucial to ensure the cable’s longevity and reliability. Consider the following best practices:

• Cable Routing: Use proper cable supports to avoid excessive tension and damage.

• Bending Radius: Follow the manufacturer's guidelines to prevent excessive bending or twisting.

• Mechanical Protection: Ensure the cable is protected from sharp edges, impacts, and abrasion during installation.

B. Regular Maintenance

To ensure long-term performance, conduct regular inspections:

• Visual Inspections: Check for visible damage or wear.

• Electrical Inspections: Verify the electrical integrity of the cable regularly.

• Preventive Maintenance: Schedule maintenance to detect potential issues before they cause downtime.

VI. Compliance and Certification

Feichun PROTOMONT Type 631 is fully compliant with British Standard BS 6708, ensuring that it meets both local and international electrical and safety standards.

The cable has been rigorously tested and certified to comply with various global standards, making it a reliable choice for critical underground mining infrastructure.

VII. Potential User Considerations

A. Critical Selection Criteria

When selecting the right cable for your mining operation, consider the following:

• Voltage Requirements: Ensure the cable meets the required voltage specifications for your equipment.

• Environmental Conditions: Choose a cable designed for the temperature, humidity, and chemical exposure specific to your mine.

• Mechanical Stress: Consider the bending, tension, and abrasion demands of your specific mining environment.

B. Comparative Advantages

• Superior Temperature Tolerance: The Type 631 withstands a wide range of temperatures, providing reliability in extreme conditions.

• Robust Mechanical Construction: With its galvanized steel armoring, this cable can endure high mechanical stresses.

• Comprehensive Electrical Safety Features: Fire resistance, oil resistance, and ozone protection make the Type 631 a comprehensive solution for safety and reliability.

Conclusion

Feichun PROTOMONT Type 631 Flexible Trailing Cable is engineered for the most demanding underground mining environments. Its advanced materials and rigorous manufacturing process ensure that it delivers superior performance, safety, and durability. From temperature fluctuations to mechanical stresses, this cable is built to handle it all.

By choosing Feichun PROTOMONT Type 631, you are investing in a long-lasting, reliable solution for your mining operations that meets international standards while offering unmatched protection and flexibility.

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.