ISO 25981:2020
道路车辆 - 用于牵引和牵引车辆电气连接的连接器 - 具有12 V或24 V标称电源电压的电子监控充电系统连接器
Road vehicles — Connectors for the electrical connection of towing and towed vehicles — Connectors for electronically monitored charging systems with 12 V or 24 V nominal supply voltage