本欧洲标准规定了EN 1459所涵盖的自推式可变拖车的纵向负载力矩指标（LLMI）和纵向负载力矩控制（LLMC）系统正向运行的技术要求，验证和试验程序。 本欧洲标准完成了条款5.8.4 EN 1459:1998纵向稳定性的要求。 在EN 1459中，LLMI被称为纵向安全警告装置。 本欧洲标准涵盖了固定式卡车的LLMI和LLMC系统，用于在综合，稳定和平坦的地面上执行装载或放置功能。 本欧洲标准不涵盖由于横向不稳定或由于卡车行驶而导致的不稳定性的风险。 LLMI和LLMC不是为了警告卡车正在行驶时的倾覆风险。 注意:在出版时，本欧洲标准中的要求不代表最新技术，出版日期后允许24个月的过渡期，使制造商能够充分发展其产品以满足本欧洲标准的要求

This European Standard specifies the technical requirements, verification and test procedure for the longitudinal load moment indicators (LLMI) and longitudinal load moment control (LLMC) systems operating in the forward direction for self propelled variable reach trucks covered by EN 1459. This European Standard completes the requirements of Clause 5.8.4 Longitudinal stability of EN 1459:1998. The LLMI has been designated by the words longitudinal safety warning devices in EN 1459. This European Standard covers LLMI and LLMC systems for stationary trucks performing loading or placing functions on consolidated, stable and level ground. This European Standard does not cover the risk due to lateral instability, or instability due to the travelling of the truck. The LLMI and LLMC are not intended for warning of the overturning risk whilst the truck is travelling. NOTE Acknowledging that, at the time of publication, the requirements included in this European Standard do not represent the state of the art, a transition period of 24 months is permitted after the date of publication, such that manufacturers can develop their products sufficiently to meet the requirements of this European Standard.