How to Ensure Low Temperature Rise During Long-Term EV Fast Charging? OMG' Liquid-Cooled Cables Offer the Solution

In long-term EV fast charging scenarios, sustained high currents easily cause cable heating and temperature rise, which not only reduces charging efficiency but also may trigger safety hazards such as insulation layer aging and short circuits. However, OMG' EV liquid-cooled charging cables, by integrating application characteristics and technical needs of the European and American markets, address this "high-temperature challenge" through core innovations, achieving dual guarantees of safety and efficiency.

 

In terms of technical compatibility, most regions in Europe and America adopt immersion oil cooling, and OMG' liquid-cooled cables are highly compatible with this cooling system. Equipped with a built-in precision closed-loop cooling system, they rapidly dissipate heat generated by conductors during fast charging through the circulation of high thermal conductivity coolant inside the cables. Even under high-power long-term charging conditions of 180kW and above, the core temperature of the cables can be stably controlled below 60°C, far lower than the temperature rise threshold of traditional cables, fundamentally avoiding performance degradation or safety risks caused by high temperatures.

 

Targeting current demands in different regions, OMG' provides precise specification solutions: - For the American market, the recommended specifications are 2X3AWG (suitable for 400-500A), 2X2AWG (suitable for 500-600A), and 2X1AWG (suitable for 600-700A). - For the European market, the recommended series is 2x(16-35mm²), including 16mm² (suitable for 250-300A), 25mm² (suitable for 400-500A), and 35mm² (suitable for 500-600A). All specifications are designed with high-temperature resistant insulating materials and low-impedance conductors: the former can withstand instantaneous high temperatures above 125°C, ensuring safety redundancy even in case of occasional failures of the cooling system; the latter reduces current transmission losses, allowing more electrical energy to be directly used for battery charging. Combined with the advantage of low temperature rise, the overall efficiency of long-term fast charging is increased by more than 15%, solving both the "slow charging" problem and eliminating concerns about "unsafe charging".

 

As a cable enterprise deeply rooted in the European and American markets, OMG' liquid-cooled products have obtained authoritative certifications such as TUV and UL. Their low-temperature rise performance has been verified through extreme environment tests—whether in fast charging at -30°C in Nordic winters or under high-temperature exposure in American summers, they maintain stable performance. Currently, these cables have been batch-matched to the fast charging networks of leading EV charging equipment and operation enterprises in Europe and America, becoming a core choice for ensuring safe and efficient long-term fast charging.