BS ISO 1726-2-2007 道路车辆.拖拉机和半挂车之间的机械连接.低耦合拖拉机和高容量半挂车之间的互换性
Road vehicles - Mechanical couplings between tractors and semi-trailers - Interchangeability between low-coupling tractors and high-volume semi-trailers
This part of ISO 1726 specifies dimensions to ensure interchangeability between a low coupling height tractor vehicle and a coupled high-volume semi-trailer, the two together constituting a high-volume articulated vehicle. It specifies certain interchangeability dimensions, including those of the optimised gooseneck contour, as well as operating dimensions related to angle values. The specifications are primarily intended to permit semi-trailers to be coupled with two-axle tractors. However, three-axle tractors are not excluded, provided they are in compliance with the requirements of this part of ISO 1726. This part of ISO 1726 does not provide limitations of maximum gross mass and overall dimensions, which are generally laid down by legislative requirements.