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Copper-Chromium-Zirconium Alloy Series Contact Wire
Copper-Chromium-Zirconium (CuCrZr) Alloy Contact Wire Series is a high-performance overhead contact wire solution designed for modern electrified railway systems. Combining high strength, excellent electrical conductivity, superior heat resistance, and outstanding durability, it supports reliable power transmission under demanding operating conditions. Available in standard and tinned versions, it is particularly suited for high-speed railways, urban rail transit, metro tunnels, and coastal environments requiring enhanced corrosion resistance.
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SPECIFICATIONS
| Segment | Application | Models | Key Features |
|---|---|---|---|
| Segment 1 | Electric railway sector: High-speed railways with design speeds of 300–350 km/h and 400 km/h and above | CTCZM150 | High strength, high hardness, excellent heat resistance, and superior electrical conductivity. Designed to withstand high mechanical stress while maintaining stable power transmission performance. Higher conductivity than comparable copper-magnesium contact wires and higher tensile strength than comparable copper-silver contact wires. |
| Segment 2 | Electric railway sector: Electrified railways and urban rail transit with design speeds of 200–250 km/h | CTCZ150, Tinned CTCZ150 | High strength and conductivity with excellent heat resistance. Tin plating provides enhanced corrosion resistance, making it suitable for high-current metro tunnels, high-temperature and high-humidity environments, and coastal elevated railway lines. Successfully applied in projects such as Jinan Rail Transit Line 4. |
Technical Features
- High-speed railway networks
- Electrified mainline railways
- Urban rail transit systems
- Metro tunnels with high current demand
- High-temperature and high-humidity operating environments
- Coastal elevated railway lines exposed to corrosive conditions
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