本文件与第1部分一起处理移动机械的所有重大危害 - 液压挖掘机按照预期使用并在与机器的整个使用寿命相关的制造商合理预见的误用条件下（见条款4）。 这部分的要求是对所制定的共同要求的补充 prEN 474-1。本文件不重复prEN 474-1的要求，但增加或取代了土方机械 - 液压挖掘机的应用要求。 这部分还涉及衍生的机械和衍生用途，例如。起重作业应用，铲铲应用，日志应用，抓斗应用，磁板应用。 本欧洲标准不适用于CEN颁布本欧洲标准之日前制造的液压挖掘机

This document together with EN 474 1:2022 deals with all significant hazards, hazardous situations and events relevant to hydraulic excavators when used as intended and under the conditions of misuse which are reasonably foreseeable by the manufacturer (see Annex A) associated with the whole lifetime of the machine as described in EN ISO 12100:2010, 5.4. The requirements of this document are complementary to the common requirements formulated in EN 474 1:2022. This document does not repeat the requirements of EN 474 1:2022 but supplements or modifies the requirements for hydraulic excavators. This document does not provide requirements for main electrical circuits and drives of machinery when the primary source of energy is an external electrical supply. The following significant and relevant hazards are not covered in this document: — Laser; — Lightning. This document does not provide performance requirements for safety related functions of control system(s). This document does not deal with towing of trailers. This document does not deal with demolition machinery. This document also deals with lifting operation application, shovel application, log application, grapple application, and magnetic plate application. This document is not applicable to hydraulic excavators which are manufactured before the date of publication of this document by CEN.