BlueWire: The permanent solution for ice-free overhead lines
Prevent costly disruptions and delays in your timetable caused by ice and frost formation on the overhead lines. Ice on the contact wire causes trains and trams to lose power, and in extreme cases, can even lead to overhead line breakage due to the heavy weight of the ice layer. Heatpoint’s BlueWire is an innovative heating system powered directly by the overhead line itself (500V to 1200V). This ensures you are always prepared for wintry conditions, guaranteeing that your vehicles can depart from the depot on time, every morning.

The benefits of the BlueWire system
Our advanced system is developed to maximize the reliability of your network and reduce operational costs:
- Save on labor and equipment: You reduce the need for costly nighttime emergency crews and specialized mechanical ice-removal vehicles.
- Protect your rolling stock: The presence of ice causes arcing, leading to excessive wear on the current collectors (pantographs). BlueWire prevents this and significantly extends the service life of your rolling stock.
- Direct power supply via overhead line: The system draws its power directly from the existing network (OHL), making complex external power supplies unnecessary.
- Environmentally friendly and safe: It is a 100% chemical-free solution that requires no additional personnel.
- Fully automated: The control system operates completely automatically via smart sensors or can be controlled manually from a distance.

Innovative Cable Technology
The BlueWire heating cable is designed for maximum heat transfer and seamless installation in the overhead contact line:
- Unique Triangular Shape: The cable features a triangular design, ensuring excellent thermal contact and easy installation on top of the contact wire.
- Rapid Results: At a temperature of -5°C and with biting wind, the contact wire is above freezing and completely ice-free within just 5 minutes.
- High-Quality Materials: The cable features twisted metal heating wires, UV-resistant TPE material for optimal heat transfer, safe silicone insulation, and a fiberglass sheath for mechanical stability.
- - Safe Installation: The system is secured with special phosphor bronze clips to prevent galvanic corrosion.
BlueWire Cable Specifications
Feature | Specifications |
|---|---|
| Power | Nominal 24 W/m (dynamic design: 20 to 30 W/m) |
| Voltage | Nominal up to 1,000 VDC |
| Design | Triangle 7.5 x 7.5 x 7.5 mm |
| Weight | 95-100 grams per meter (including 8 mounting clips) |
| Maximum Temperature | 80°C without deformation |
| Insulation Value | Minimum 5 kV |



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