(N)TSCGEWÖU-(SB) 6/10kV VDE 0250-813 Heavy-Duty Elastomer-Sheathed Mining Cable for Open & Underground Mines

APPLICATION

Used in open and underground mines.

Cable Structure

CONDUCTOR : Electrolytic, stranded, tinned copper wire DIN VDE 0295 Class 5
SEPERATOR : Semiconducting !ayer over power conductors and earth conductors
INSULATION : Phase cores are insulated with 3Gl3 compound (acc. to DIN VDE 0207 part 20). Earth cores are not insulated.
SEPERATOR : Semiconducting layer over phase core insulations
LAYUP : Al! cores are laid up in contact with each other and interstitial ground cores.
OUTER SHEATH : Heavy duty elastomer outer sheath 5GM5 (acc. to DIN VDE 0207 Teil 21)

Cable Properties: 

RELATED STANDARDS : VDE 025 0 – 813
RATED VOLTAGE : 6/10 kV
TEST VOLTAGE : 17 kV (AC), 42,5 kV (DC)

Technical Specifications: 

Cross-section (mm2)

MIN. OVERALL DIAMETER
(mm)

MAX. OVERALL DIAMETER
(mm)

APPROX. CABLE WEIGHT
(kg/km)

COPPER WEIGHT
(kg/km)

3.6/6kV

3×25+3×25/3

46.2

50.2

3.08

1.008

3×70+3×35/3

58.8

62.8

5.52

2.47

3×95+3×50/3

62.5

66.5

6.58

3.437

3×120+3×70/3

68.2

72.2

8.11

4.328

6/10kV

3×25+3×25/3

47.9

51.9

3.27

1.008

3×35+3×25/3

51.6

55.6

3.86

1.31

3×50+3×25/3

56.7

60.7

4.75

1.764

3×70+3×35/3

60.5

64.5

5.75

2.47

3×95+3×50/3

64.2

68.2

6.38

3.437

3×120+3×70/3

69.9

73.9

8.38

4.328

Mining operations, whether in open-pit or underground environments, demand robust and reliable electrical infrastructure. Among these, mining cables play a critical role in ensuring operational efficiency, safety, and long-term reliability. One such cable designed for high-voltage applications in harsh mining conditions is the (N)TSCGEWÖU-(SB) 6/10kV VDE 0250-813 Heavy-Duty Elastomer-Sheathed Mining Cable.

What Is the (N)TSCGEWÖU-(SB) Mining Cable and Where Is It Used?

The (N)TSCGEWÖU-(SB) mining cable is a heavy-duty, elastomer-sheathed, medium-voltage cable designed specifically for open and underground mining applications. Its key use cases include powering:

  • Excavators, crushers, and haulage equipment in underground tunnels.

  • Open-pit mining machinery, such as draglines and shovels.

  • High-power auxiliary systems like ventilation fans, pumps, and control stations.

South African mines, including gold, platinum, and coal operations, often operate in challenging conditions—high mechanical stress, moisture, dust, and variable temperatures. The robust design of the (N)TSCGEWÖU-(SB) cable ensures reliable performance in such extreme environments, reducing downtime and maintenance costs.


What Are the Advantages of Using (N)TSCGEWÖU-(SB) in South African Mines?

South African mines face specific challenges that the (N)TSCGEWÖU-(SB) cable addresses:

  1. Mechanical Strength: Its elastomer sheath resists wear, abrasion, and crushing in underground tunnels.

  2. Thermal Stability: The cable withstands high operating temperatures common in deep mining.

  3. Chemical Resistance: It tolerates oils, lubricants, and mine chemicals, reducing degradation.

  4. Electrical Reliability: Tinned copper conductors and semiconducting layers minimize electrical stress and ensure consistent power delivery.

  5. Compliance: Conforms to VDE 0250-813, meeting international safety standards recognized by South African regulators.


What Are Some Real-World South African Case Studies?

In South African mining operations, several examples highlight the cable’s performance:

  • Platinum Mine in Rustenburg: (N)TSCGEWÖU-(SB) cables were used for powering high-capacity haulage equipment in underground tunnels. The cables demonstrated exceptional resistance to mechanical wear, extending service life by over 30% compared to previous PVC-sheathed cables.

  • Coal Mine in Mpumalanga: Medium-voltage feeders supplying ventilation fans and pumps utilized the 3×95+3×50/3 cross-section. The heavy-duty elastomer sheath reduced downtime caused by cable damage during routine maintenance.

  • Gold Mine in Gauteng: Cables connected draglines and crushers in open-pit operations, benefiting from flexibility during equipment repositioning.

These case studies highlight that long-term reliability and reduced maintenance costs are key advantages for South African operators.


Frequently Asked Questions (FAQ)

Can the (N)TSCGEWÖU-(SB) Cable Be Used in Both Open-Pit and Underground Mines?

Yes. The heavy-duty elastomer sheath and flexible design make it suitable for mechanically demanding environments, both above and below ground.

What Are the Load Capacities for Different Cross-Sections?

The choice depends on power requirements:

  • 3×25+3×25/3: Up to 120 A continuous

  • 3×50+3×25/3: Up to 200 A continuous

  • 3×120+3×70/3: Up to 380 A continuous

Note: Exact values depend on installation conditions and ambient temperature.

How Does It Compare to Chloroprene-Sheathed Cables?

Elastomer-sheathed (N)TSCGEWÖU-(SB) cables provide better flexibility and chemical resistance, especially under continuous mechanical stress. Chloroprene is durable but stiffer in lower temperatures.

Can This Cable Handle High Short-Circuit Currents?

Yes. Its tinned copper conductors and high-quality insulation allow short-duration short-circuit withstand, provided installation and thermal ratings are respected.

Is Maintenance Required?

Periodic inspections for sheath integrity, insulation resistance, and mechanical damage are recommended. Regular maintenance extends service life and ensures operational safety.


What Are the Key Takeaways for Mining Operators?

  1. Reliable Power Supply: Ensures machinery operates without interruption, improving productivity.

  2. Durable Construction: Elastomer sheath and tinned copper conductors resist mechanical, thermal, and chemical stresses.

  3. Flexible Installation: Can be routed through tunnels, machinery, or open-pit conveyors with minimal bending issues.

  4. Compliance and Safety: Meets VDE 0250-813, reducing regulatory concerns.

  5. Cost-Effective: Lower maintenance frequency translates into long-term cost savings.


Why Choose (N)TSCGEWÖU-(SB) for Mining Operations?

Mining is a high-risk environment, and electrical failures can cause costly downtime or safety hazards. The (N)TSCGEWÖU-(SB) 6/10kV heavy-duty elastomer-sheathed mining cable is engineered to withstand the mechanical, thermal, and chemical challenges of South African mines. With robust conductors, high-quality insulation, and a flexible elastomer sheath, it provides a long-lasting, reliable, and safe solution for medium-voltage power distribution.

Whether used for underground haulage, open-pit draglines, or ventilation systems, this cable ensures continuous operation, regulatory compliance, and reduced maintenance costs, making it a smart choice for mining operators seeking both performance and safety.