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26/45 kV (N)TMCWOEU Railway Cable
Overview: The TEBAOFLEX (N)TMCWOEU railway cable is an ultimate 26/45 kV flexible connection cable designed specifically for rolling stock and railway networks. Engineered to withstand intense vibrations and extreme environmental factors, it ensures unparalleled power transmission safety for modern trains.
Key Specifications:
- Rated Voltage: 26/45 kV (Max continuous: 31/54 kV).
- Fire Safety Classes: Complies with BS 6853 (1b), NF F 16-101 (Class D/Fo), and DIN 5510.
- Material: Halogen-free HM3 polymer sheath and super clean EPR insulation.
- Environmental Resistance: Outstanding resistance to oil (IRM 902), fuel (IRM 903), UV, ozone, and sub-zero climates (-40°C).
- Mechanical Strength: Tested against heavy vibrations, rock-falls, and hailstones (EN 61373 Category 1, Class B).
The Ultimate (N)TMCWOEU Railway Cable for Rolling Stock and Train Networks
When engineering power systems for high-speed trains, locomotives, and urban transit networks, standard industrial cables are inadequate. The TEBAOFLEX (N)TMCWOEU railway cable is an ultimate 26/45 kV flexible connection cable meticulously designed for the railway sector. Capable of handling high-voltage pulses and extreme physical stress, this premium cable guarantees uninterrupted power delivery and supreme passenger safety under the most demanding dynamic conditions.
Why is Our (N)TMCWOEU Railway Cable the Best Choice for Trains?
As a leading source factory in the specialized cable industry, TEBAOFLEX builds the (N)TMCWOEU railway cable to exceed stringent international transportation standards. The cable offers exceptional railway network suitability, capable of managing voltage pulses according to IEC 61287-1 and sustained overvoltages per EN 50163 (Zone C). Whether exposed to continuous solar radiation, heavy condensation, or freezing blizzards, our cable maintains its structural integrity and electrical performance.
For additional context regarding electrical safety standards in modern transportation, you can explore the technical principles of railway electrification systems.
Superior Fire Safety and Halogen-Free Performance
In the rolling stock industry, fire safety is the absolute highest priority. In the event of an emergency, cables must not propagate flames or release toxic, blinding smoke. Our (N)TMCWOEU railway cable is constructed with an advanced Halogen-Free HM3 polymer sheath and has achieved top-tier global fire class certifications:
- Flame Resistance: Fully complies with IEC 60332-1 and EN 50265-2-1.
- Smoke Density & Toxicity: Meets BS 6853 (Vehicle category 1b), NF F 16-101 (Class Fo), and EN 50305 (ITC < 3) standards, ensuring light transmission > 60% with zero toxic halogen gas emission.
- Fire Propagation: Tested to IEC 60332-3 Category C and NF C 32-070 Class C1.
Detailed Cable Construction
To withstand constant vibrations and severe environmental hazards, the cable features a highly robust multi-layer architecture:
- Conductor: Highly flexible tinned (or plain) copper wire, Class 5 according to DIN VDE 0295 / IEC 60228.
- Inner Conductor Screen: Conductive rubber layer for electrical field smoothing.
- Insulation: Super clean Ethylene Propylene Rubber (EPR) insulation for unparalleled dielectric strength.
- Outer Core Screen: Conductive rubber layer (easy strippable) combined with conductive tape and a spiral of tinned copper wires.
- Outer Sheath: Halogen-free, cross-linked polymer compound HM3 (acc. to DIN VDE 0207-24). Oil resistant, flame retardant, and colored Red.
Technical Data & Environmental Resistance
Our railway connection cables are subjected to rigorous physical and chemical tests to ensure long-lasting performance on the tracks:
| Rated Voltage | 26/45 kV (Max Continuous: 31/54 kV) |
| Test Voltage & Impulse Peak | 87 kV (AC 5 min) / 250 kV Impulse |
| Conductor Temperature | Max. +90°C (Short circuit: +250°C) |
| Ambient Temp. (Fixed / Flexing) | -40°C to +80°C / -25°C to +80°C |
| Oil & Fuel Resistance | IRM 902 (72h@100°C) / IRM 903 (168h@70°C) |
| Mechanical Toughness | Resistant to rock-falls, hailstones, and vibrations (EN 61373 Cat 1, Class B) |
| Chemical & Weather Resistance | Ozone, UV, Saltwater, Snow, Ice, and Outdoor Cleanser resistant |
Dimensions and Weight (26/45 kV Series)
TEBAOFLEX supplies the (N)TMCWOEU railway cable in various cross-sections. Below are the typical dimensions for our flexible tinned copper series:
| Cross-section (mm²) | Conductor Dia. approx (mm) | Insulation Thickness (mm) | Overall Cable Dia. (mm) | DC Resistance at 20°C (Ω/km) | Weight approx. (kg/km) |
|---|---|---|---|---|---|
| 1 x 50 / 16 | 9.3 | 8.0 | 36 – 38 | 0.393 | 1,900 |
| 1 x 95 / 16 | 12.9 | 8.0 | 40 – 42 | 0.210 | 2,700 |
| 1 x 150 / 25 | 16.0 | 8.0 | 44 – 46 | 0.132 | 3,700 |
| 1 x 240 / 25 | 20.6 | 8.0 | 49 – 51 | 0.082 | 4,500 |
| 1 x 400 / 35 | 26.5 | 8.0 | 55 – 57 | 0.050 | 6,400 |
| 1 x 630 / 35 | 33.9 | 8.0 | 62 – 66 | 0.028 | 9,200 |
Frequently Asked Questions (FAQ)
1. Why must rolling stock cables be halogen-free?
In enclosed spaces like passenger trains and subway tunnels, standard PVC cables release highly toxic, corrosive halogen gases and thick black smoke when burning, which impedes evacuation. Our halogen-free HM3 sheath ensures maximum visibility and zero toxic gas emissions during fire emergencies.
2. Can this cable withstand continuous vibrations on a moving train?
Yes. The (N)TMCWOEU railway cable is strictly tested according to EN 61373 Category 1, Class B for strain patterns and vibrations. Its Class 5 flexible stranded copper core prevents metal fatigue and breakage even under constant motion.
3. How can I order this specialized cable for my railway project?
As an ISO-certified direct factory, TEBAOFLEX supplies premium heavy-duty cables globally. We offer custom manufacturing and wholesale pricing for major infrastructure projects. To discuss your specifications, please contact our specialized engineering team today.
