本文件规定了便携式、手持式、内燃机驱动的切断机的设计和施工的安全要求和验证措施，该切断机拟由单个操作员用于切割沥青、混凝土、石头和金属等建筑材料。它仅适用于专门设计用于最大外径为430 mm的旋转粘合磨料和/或超磨料（例如金刚石）切断轮的机器，中心安装在主轴轴上，并由主轴轴驱动，主轴轴的顶部旋转远离操作员（见图1）。本文件涉及所有重大危险、危险情况或在制造商合理可预见的误用条件下按预期使用时对这些机器具有重大意义的危险事件。重大危害清单见附件F。本文件规定了消除或减少使用过程中产生的危险的方法，以及与机器一起提供的安全工作实践的信息类型。本文件不考虑切断轮规格。切断轮被视为符合现有切断轮标准。例如，请参阅参考书目。所有通过文件，便携式，手持，内燃机驱动的切断机被称为“切断机”。本文件不适用于出版日期之前制造的机器。

This document specifies safety requirements and measures for their verification for the design and construction of portable, hand-held, internal combustion engine-driven cut-off machines intended to be used by a single operator in the cutting of construction materials, such as asphalt, concrete, stone and metal. It is applicable only to those machines designed purposely for use with a rotating, bonded-abrasive and/or super-abrasive (for example diamond) cut-off wheel having a maximum outer diameter of 430 mm, centre-mounted on and driven by a spindle shaft where the top of the wheel rotates away from the operator (see Figure 1). This document deals with all significant hazards, hazardous situations or hazardous events significant to these machines when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer. See Annex F for a list of significant hazards. This document specifies methods for the elimination or reduction of hazards arising from their use, as well as the type of information on safe working practices to be provided with the machines. Cut-off wheel specifications are not considered in this document. Cut-off wheels are deemed to comply to existing cut-off wheel standards. NOTE For example see Bibliography. All through the document, portable, hand-held, internal combustion engine-driven cut-off machines are called "cut-off machines". This document is not applicable to machines manufactured before the date of its publication.