(O)TMCETMPU 6/10 kV to 14/25 kV Three Conductor Round Portable Trailing Cable

Mining Cables
Description

Product Overview

The (O)TMCETMPU series is a premium three-conductor round portable trailing cable engineered for the most extreme underground mining applications. Rated from 6/10 kV to 14/25 kV, this cable features triple-extruded EPR insulation with semi-conductive layers and a rugged thermoplastic polyurethane (TPU) jacket. Designed to withstand high tensile stress, abrasion, and continuous flexing on cable reels, it delivers reliable power to heavy mining equipment in the harshest environments.

Applications

  • Underground mining – connecting heavy self-driven loaders, shuttle cars, and continuous miners

  • Open pit mining – trailing cables for mobile equipment using cable reels

  • Industrial sites – dry, moist, wet rooms and outdoor locations

  • Extreme mechanical stress – high tensile and abrasion demands

Standards & Approvals

  • Design principles: Based on IEC 60502, VDE 0250 part 813

  • Conductor: IEC 60228 Class 5 flexible tinned copper

  • Insulation: Superior EPR compound exceeding DIN VDE 0207 part 20 type 3GI3 requirements

Key Characteristics

Property Performance
Temperature rating Conductor operating: 90 °C
Short-circuit (max): 200 °C
Flexibility at: –30 °C
Flexibility Excellent, even at low temperatures
Environmental resistance Highly ozone and weather resistant
Mechanical resistance Excellent impact and abrasion resistance
Chemical resistance Oil and heat resistant

Cable Construction

  1. Conductor
    Finely stranded tinned copper, flexible Class 5 (IEC 60228).

  2. Power core insulation system (triple extrusion)

    • Inner semi-conductive rubber layer

    • Insulation: high-quality ozone-resistant ethylene-propylene rubber (EPR)

    • Outer semi-conductive rubber layer

    • Optional: Semi-conductive tape separator

    • Screen/Mixed braid: Tinned copper wires combined with colored textile threads (black, white, red for circuit identification)

  3. Ground check conductor
    Annealed tinned copper (IEC 60228) with polypropylene insulation, yellow.

  4. Grounding conductor (Earth)
    Flexible finely stranded tinned copper.

  5. Assembly
    Three power cores + two earth conductors + one ground check conductor are cabled together.
    Single-faced rubber-filled binder tape applied overall.
    Integral filled jacket design for enhanced torsion resistance.

  6. Outer jacket
    Thermoplastic Polyurethane (TPU) compound – extra heavy duty, oil resistant, very high abrasion and tear resistance.
    Colour: Yellow (other colours available on request).

Technical Parameters

All values are nominal. Conductor resistance measured at 20 °C. Ampacity at 30 °C ambient.

6/10 kV

Power + Grounding Conductors Power conductor stranding Grounding/Ground check stranding Insulation thickness Jacket thickness Approx. overall diameter Max. conductor resistance Ampacity Approx. weight
mm² N x mm N x mm mm mm mm Ω/km A kg/km
3x50+2x16+1x10 364x0.4 116x0.4/74x0.4 3.4 5.5 54.0 0.393 202 4307
3x70+2x35+1x10 514x0.4 254x0.4/74x0.4 3.4 5.5 54.8 0.277 250 5534
3x95+2x35+1x16 684x0.4 254x0.4/116x0.4 3.4 5.5 62.6 0.210 301 6901
3x120+2x50+1x10 870x0.4 364x0.4/74x0.4 3.4 5.5 66.3 0.164 352 7467
3x185+2x70+1x35 1325x0.4 514x0.4/254x0.4 3.4 5.5 75.6 0.108 461 11100

8.7/15 kV

Power + Grounding Conductors Power conductor stranding Grounding/Ground check stranding Insulation thickness Jacket thickness Approx. overall diameter Max. conductor resistance Ampacity Approx. weight
mm² N x mm N x mm mm mm mm Ω/km A kg/km
3x50+2x16+1x10 364x0.4 116x0.4/74x0.4 4.5 5.5 60.3 0.393 215 4900
3x70+2x35+1x10 514x0.4 254x0.4/74x0.4 4.5 5.5 63.2 0.277 265 6100
3x95+2x35+1x16 684x0.4 254x0.4/116x0.4 4.5 5.5 68.2 0.210 319 7100
3x120+2x50+1x10 870x0.4 364x0.4/74x0.4 4.5 5.5 72.2 0.164 371 8400
3x185+2x70+1x35 1325x0.4 514x0.4/254x0.4 4.5 5.5 76.7 0.108 488 12100

14/25 kV

Power + Grounding Conductors Power conductor stranding Grounding/Ground check stranding Insulation thickness Jacket thickness Approx. overall diameter Max. conductor resistance Ampacity Approx. weight
mm² N x mm N x mm mm mm mm Ω/km A kg/km
3x50+2x16+1x10 364x0.4 116x0.4/74x0.4 6.8 5.5 65.1 0.393 215 6800
3x70+2x35+1x10 514x0.4 254x0.4/74x0.4 6.8 5.5 69.7 0.277 265 8000
3x95+2x35+1x16 684x0.4 254x0.4/116x0.4 6.8 5.5 75.3 0.210 319 9000
3x120+2x50+1x10 870x0.4 364x0.4/74x0.4 6.8 5.5 78.3 0.164 371 9400
3x185+2x70+1x35 1325x0.4 514x0.4/254x0.4 6.8 5.5 86.3 0.108 488 14000

Note: Stranding construction shown as number of wires x individual wire diameter. Grounding/Ground check stranding = Earth conductor / Ground check conductor.

Specifications at a Glance

  • Voltage ratings: 6/10 kV, 8.7/15 kV, 14/25 kV

  • Conductor operating temperature: 90 °C

  • Short-circuit temperature: 200 °C

  • Cold flexibility: –30 °C

  • Oil resistance: Yes

  • Jacket material: TPU (extra heavy duty)

  • Outer jacket colour: Yellow (custom colours available)