Transportation cables are the key components for the stable operation of transportation facilities. They come in various types and cover multiple fields such as rail transit, electric vehicles, airports and ports. When selecting them, factors such as safety, durability, environmental adaptability and laying conditions need to be comprehensively considered.
High-speed rail and metro dedicated cables: High-speed rail and metro, as large-capacity rapid transportation tools, rely on stable and reliable power supply and precise signal transmission for their operation. The catenary cables are the core components for obtaining power in high-speed rail and metro systems. They are suspended above the tracks and connected to the trains through pantographs, continuously supplying powerful electricity to the trains. These cables need to have extremely high conductivity and mechanical strength to withstand the frequent friction and vibration during high-speed train operation. For example, copper alloy catenary cables, with their excellent conductivity and wear resistance, ensure stable power transmission for high-speed rail traveling at 350 kilometers per hour.
Railway signaling cables: These cables are responsible for transmitting important information such as train operation instructions and track condition monitoring, ensuring the safe and orderly operation of trains. These cables have excellent anti-interference performance and adopt a shielded structure design, which can effectively resist electromagnetic interference from surrounding electrical equipment, ensuring the accuracy and stability of signal transmission. For example, the comprehensive sheathed railway signaling cable uses multiple layers of shielding and special insulating materials to control signal transmission errors within an extremely small range, providing a reliable guarantee for train autonomous driving and dispatching command.
Train interior cables: From the lighting and air conditioning systems in the carriages to the onboard entertainment equipment and safety monitoring systems, a large number of electrical wires and cables are required for power and signal connections. The train interior cables need to have fire-resistant, low-smoke, and halogen-free properties to cope with possible fire risks. Low-smoke and halogen-free cables do not produce a large amount of toxic smoke when burning, which can give passengers more time to escape and reduce harm to the environment and human bodies.
High-voltage cables: The high-voltage system of electric vehicles is the core of its power. High-voltage cables are the "blood vessels" that connect key components such as batteries, motors, and electronic control units. As the range and power of electric vehicles continue to increase, higher requirements have been placed on the current-carrying capacity, high-temperature resistance, and electromagnetic shielding performance of high-voltage cables.
Airport-specific cables: The airport is a large and complex transportation hub.