Product Overview
The (N)TMH3S 0.6/1kV Round Portable Mining Cable is engineered for extreme high mechanical stress applications, particularly where high tensile and abrasion forces are encountered. Specially designed for reeling applications, this cable serves to connect heavy, self-driven loaders, shuttle cars, and other mobile mining equipment that are supplied with electrical power via cable reels. In addition to mining environments, it is suitable for use in dry, moist, and wet rooms as well as outdoors on construction sites and other industrial applications.
Key Standards:
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In line with IEC 60502-1
Key Characteristics
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Exceptional Mechanical Durability: Excellent impact and abrasion resistance for the most demanding mining environments.
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Superior Flexibility: Maintains excellent flexibility under continuous reeling and unreeling operations.
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Environmental Resistance: Highly ozone and weather resistant for reliable outdoor performance.
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Extended Temperature Range:
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Fixed installation: -50°C to +90°C
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Mobile installation: -40°C to +90°C
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Maximum conductor operating temperature: 90°C
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Maximum short-circuit current temperature: 250°C
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Oil and Heat Resistance: Reliable performance in the presence of lubricants and elevated temperatures.
Specifications
| Parameter | Details |
|---|---|
| Voltage Rating | 0.6/1 kV (Low Voltage) |
| Temperature Range (Fixed) | -50°C to +90°C |
| Temperature Range (Mobile) | -40°C to +90°C |
| Maximum Conductor Temperature | 90°C |
| Maximum Short-Circuit Temperature | 250°C |
| Oil Resistance | Excellent |
| Cold Resistance | -40°C (mobile) |
| Conductor Class | Class 5 flexible bare copper (IEC 60228) |
| Outer Jacket Color | Yellow |
Construction
| Component | Description |
|---|---|
| Conductor | Finely stranded bare copper, flexible Class 5 in accordance with IEC 60228 for maximum flexibility. |
| Separator | If needed, a suitable tape separator applied between conductor and insulation. |
| Insulation | Ethylene-Propylene Rubber (EPR) 90°C type 3GI3 according to DIN VDE 0207 Part 20, providing excellent electrical and thermal properties. |
| Circuit Identification | Insulation colors: Brown, Black, Grey for power cores; Earth cores: Green/Yellow. |
| Assembly | Three power cores and three insulated earth cores cabled together. Rubberized cotton binder tape applied overall for core retention. |
| Outer Jacket | Thermoplastic Polyurethane (TPU) compound offering exceptional abrasion, impact, tear, and oil resistance. |
| Jacket Color | Yellow for high visibility in mining environments. |
Technical Parameters
| Number & Cross-Section (Power + Grounding) | Power Conductor Stranding | Nominal Insulation Thickness | Overall Diameter (Min/Approx/Max) | Max Conductor Resistance at 20°C | Ampacity* at 30°C Ambient | Approx. Weight |
|---|---|---|---|---|---|---|
| N × mm | mm | mm | Ω/km | A | kg/km | |
| 3×25 + 3G6 | 180 × 0.4 | 1.4 | 23.5 / 25.5 / 26.0 | 0.780 | 121 | 1252 |
| 3×35 + 3G6 | 254 × 0.4 | 1.4 | 27.0 / 27.1 / 29.5 | 0.554 | 150 | 1556 |
| 3×50 + 3G10 | 364 × 0.4 | 1.6 | 30.0 / 33.2 / 33.7 | 0.386 | 182 | 2293 |
| 3×70 + 3G16 | 514 × 0.4 | 1.6 | 35.0 / 38.0 / 39.5 | 0.272 | 234 | 3164 |
| 3×95 + 3G16 | 684 × 0.4 | 1.8 | 39.0 / 43.6 / 44.1 | 0.206 | 284 | 4016 |
| 3×120 + 3G25 | 870 × 0.4 | 1.8 | 44.0 / 45.8 / 47.0 | 0.161 | 330 | 4987 |
| 3×150 + 3G25 | 1092 × 0.4 | 2.0 | 49.0 / 51.9 / 52.5 | 0.129 | 375 | 6122 |
| 3×185 + 3G35 | 1325 × 0.4 | 2.2 | 54.5 / 57.5 / 58.5 | 0.106 | 429 | 7541 |
| 3×240 + 3G50 | 1752 × 0.4 | 2.4 | 60.5 / 62.7 / 64.5 | 0.0801 | 510 | 9737 |
| 3×300 + 3G50 | 2203 × 0.4 | 2.6 | 68.5 / 72.5 / 73.0 | 0.0641 | 555 | 12029 |
*Note: Ampacity values are for reference and may vary based on installation conditions.
Typical Applications
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Connection of heavy self-driven loaders in underground mining operations
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Power supply for shuttle cars and mobile mining equipment using cable reels
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Reeling and trailing applications with continuous movement
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Dry, moist, and wet indoor environments
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Outdoor construction sites and industrial areas
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Applications requiring extreme tensile and abrasion resistance
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Mobile equipment with frequent cable reeling/unreeling cycles