(N)SSHCÖU 0.6/1 kV Mining & Tunneling Motor Cable | VDE 0207 Compliant Flexible Power Cable for Frequency Converter Drives

Mining and tunneling environments demand rugged, flexible, and reliable power cables capable of withstanding harsh conditions while supplying motor drives, especially for frequency converter-controlled systems. The (N)SSHCÖU 0.6/1 kV Mining & Tunneling Motor Cable meets these needs, complying with VDE 0207 standards, and is widely used in South Africa’s mining industry.

What Is the Structure of the (N)SSHCÖU 0.6/1 kV Cable?

Understanding the cable structure is crucial for evaluating its durability and performance. The (N)SSHCÖU cable features a layered construction designed for both fixed installations and flexible motor operation.

• Conductor: Electrolytic annealed, class 5 stranded tinned copper wires, ensuring excellent conductivity and mechanical flexibility.

• Insulation: 3GI3 type cross-linked elastomeric compound (VDE 0207 – Part 20) provides heat resistance, flexibility, and durability under dynamic stress.

• Screening: Concentric tinned copper wire braiding enhances electromagnetic compatibility (EMC) and prevents signal interference.

• Inner Sheath: GM1b type cross-linked elastomeric compound (VDE 0207 – Part 21), protecting against mechanical damage from internal stress.

• Outer Sheath: 5GM5 type cross-linked elastomeric compound (VDE 0207 – Part 21), highly resistant to abrasion, chemicals, and environmental hazards.

• Color Options: Yellow or black for easy identification in complex installations.

This multi-layer construction ensures both flexibility and durability, making the cable suitable for harsh underground mining and tunneling environments.

How Does the (N)SSHCÖU Cable Perform Electrically?

The operating characteristics of the (N)SSHCÖU 0.6/1 kV cable reflect its suitability for demanding applications:

• Rated Voltage: 600 / 1000 V (U0/U)

• AC Test Voltage: 3 kV

• Operating Temperature:

  • Flexible use: -25°C to +80°C

  • Fixed use: -40°C to +80°C

• Maximum Conductor Temperature: 90°C

• Short-Circuit Temperature: 250°C (max. 5 seconds)

• Minimum Installation Temperature: -15°C

• Minimum Bending Radius: As per VDE 0298-3 Tab.3

• Current Carrying Capacities: As per VDE 0298-4 Tab.15

This thermal and electrical robustness allows the cable to operate safely in fluctuating temperatures and dynamic mining environments without degradation or risk of failure.

Why Is the (N)SSHCÖU Cable Preferred in Mining & Tunneling?

Mining and tunneling present unique challenges:

• Mechanical Stress: Continuous movement of machinery requires cables that resist abrasion, crushing, and bending fatigue.

• Environmental Conditions: Underground mines may have low temperatures, high humidity, and exposure to chemicals.

• Electrical Stability: Motors and frequency converters require consistent power without voltage drops or interference.

The (N)SSHCÖU cable meets all these criteria due to its layered construction, high-quality copper conductors, and elastomeric insulation and sheathing.

How Is the (N)SSHCÖU Cable Used in South African Mines?

In South Africa, the cable is widely used in gold, platinum, and coal mines for motor power supply. Real-world case studies show:

• Gold Mining: Flexible motor drives for underground ore transport systems utilize 3×50+3×25/3 and 3×70+3×35/3 cables for durability and high current capacity.

• Platinum Mining: Long tunnels require fixed and flexible cables capable of enduring frequent bending; 2×16 and 4×16 mm² cables are common.

• Coal Mining: Heavy-duty cutters and conveyors are powered by 3×95+3×50/3 cables, enabling safe operation of frequency-controlled drives.

These applications illustrate the cable’s versatility in heavy-duty, high-demand environments.

Frequently Asked Questions (FAQ)

What makes the (N)SSHCÖU cable suitable for frequency converter-controlled drives?

Its cross-linked elastomeric insulation and concentric copper braiding prevent voltage fluctuations and electromagnetic interference, ensuring stable motor operation.

Can (N)SSHCÖU cables withstand harsh underground mining conditions?

Yes, they are designed for extreme temperatures (-40°C to +80°C fixed) and high mechanical stress, making them ideal for tunnels, shafts, and conveyors.

How does it differ from standard PVC mining cables?

Compared to PVC cables, (N)SSHCÖU offers higher flexibility, better thermal resistance, longer lifespan, and suitability for dynamic motor drives.

What cross-section should I choose for my mine motor application?

It depends on the motor current, distance, and installation type. Use the cable specifications table to select the right size, ensuring the minimum bending radius and thermal limits are respected.

Is the cable suitable for both fixed and flexible installations?

Yes, its layered structure and elastomeric sheaths make it suitable for both applications without compromising safety or performance.

Installation Recommendations

For mining engineers and facility managers:

• Always match the cable size with load requirements.

• Ensure compliance with VDE 0207 standards and local mining regulations.

• Use protective conduits or trays in high-wear areas.

• Schedule periodic inspections to detect insulation wear or mechanical damage early.

For bulk orders or technical consultation on selecting the correct (N)SSHCÖU 0.6/1 kV cable, contact a certified supplier with experience in South African mining operations. This ensures safety, efficiency, and regulatory compliance.