本欧洲标准规定了根据EN ISO 3691 1的平衡式起重车的侧向稳定性验证的动态试验，该标准具有中央控制，坐下，不提升操作员，行驶时额定载荷可达5000公斤平稳的地面与叉子在行驶位置。该标准不适用于Rough Terrain叉车。 注1:经验表明，额定容量超过5000公斤的平衡式卡车不会受到横向不稳定性的严重影响。 这些要求是针对各种驱动系统（例如电/内燃机卡车），考虑到它们对动态稳定性能的不同影响。 本欧洲标准不包括与向后驱动相关的侧向翻倒的风险。 注2:研究表明，在典型的作业操作中向后行驶，例如卸载货车不会导致横向不稳定。因此，只有前进才需要测试。 由于脱离装卸码头或开启坡道造成的风险不在本欧洲标准范围之内。 由于提升或机动操作引起的风险由相应的稳定性测试所涵盖

This European Standard specifies dynamic tests for the verification of lateral stability for counterbalanced lift trucks according to EN ISO 3691 1 that have a centre control, sit down, non-elevating operator, with a rated capacity up to and including 5 000 kg when travelling on smooth level ground with the forks in travelling position. The standard is not applicable for Rough Terrain forklift trucks. NOTE 1 Experience shows that counterbalanced lift trucks with a rated capacity over 5 000 kg are not significantly affected by lateral instability. The requirements are specific to the various drive systems (e.g. Electric-/Internal-Combustion-Engine trucks), taking account of their varying influence on dynamic stability performance. This European Standard does not cover the risk of a lateral tip over associated with driving backwards. NOTE 2 Research has shown that driving backwards in typical working operations, such as unloading of a lorry, does not cause lateral instability. For this reason, only driving forward needs to be tested. Risks due to falling off a loading dock or turning on a ramp are not covered by this European Standard. Risks due to lifting or manoeuvring operations are covered by the respective stability tests.