ISO 20474-1:2017规定了ISO 6165中定义的土方机械的一般安全要求，这些要求中的每一项都是两个或更多土方机械系列的共同要求。它也适用于机器附件，以及主要用于挖掘、装载、运输、钻孔、摊铺、压实或挖沟土、岩石和其他材料的设备的衍生机械。 它旨在与ISO 20474的其他部分结合使用，这些部分给出了特定机器系列的规定。这些具体要求优先于本文件对相关机器的要求。 对于多用途机械，ISO 20474中要求涵盖此类机械功能和应用的所有零件均适用。 例如，对于同样用作挖沟机的小型装载机，ISO 20474-1、ISO 20474-3和ISO 20474-10的相关要求适用。 ISO 20474-1:2017规定了按照预期使用或在制造商合理预见的误用条件下使用土方机械时，其范围内（见附录A）与土方机械相关的所有重大危险、危险情况和事件。它规定了适当的技术措施，以消除或减少调试、运行和维护期间相关危险、危险情况或事件产生的风险。 ISO 17757涵盖了与自动机器相关的具体要求。 ISO 20474-1:2017不适用于发布日期之前制造的机器。

ISO 20474-1:2017 specifies the general safety requirements for earth-moving machinery as defined in ISO 6165, each of these requirements being common to two or more earth-moving machine families. It is also applicable to machine attachments, and to derivative machinery designed primarily for equipment used to excavate, load, transport, drill, spread, compact or trench earth, rock, and other materials. It is intended to be used in conjunction with the other parts of ISO 20474, which give the provisions that are specific to particular machine families. Those specific requirements take precedence over the requirements of this document for the machines concerned. For multipurpose machinery, all of those parts of ISO 20474 whose requirements cover the functions and applications of such machines are applicable. EXAMPLE For a compact loader also used as a trencher, the relevant requirements of ISO 20474？1, ISO 20474？3 and ISO 20474？10 are applicable. ISO 20474-1:2017 deals with all significant hazards, hazardous situations and events relevant to the earth-moving machinery within its scope (see Annex A) when used as intended or under conditions of misuse reasonably foreseeable by the manufacturer. It specifies the appropriate technical measures for eliminating or reducing risks arising from relevant hazards, hazardous situations or events during commissioning, operation and maintenance. Specific requirements related to autonomous machines are covered in ISO 17757. ISO 20474-1:2017 is not applicable to machines manufactured before the date of its publication.