本文件与EN 474-1:2022一起论述了与3.1中定义的铺管机相关的所有重大危险、危险情况和事件，当按预期使用时，以及在制造商合理预见的与EN ISO 12100:2010，5.4中所述的机器整个使用寿命相关的误用条件下（见附录A）。本文件的要求是对EN 474-1:2022中制定的通用要求的补充。本文件不重复EN 474-1:2022的要求，但补充或修改了铺管机的要求。本文件还规定了后置绞车的附加要求。本文件不提供控制系统安全相关功能的性能要求。本文件未涵盖以下重大和相关危险: -自推进机械（或拖拉机）和接收机械之间的动力传输激光；-闪电具有旋转上部结构的铺管机不在本文件范围内。本文件不适用于在CEN发布本文件之前制造的铺管机。

This document, together with EN 474-1:2022, deals with all significant hazards, hazardous situations and events relevant to pipelayers as defined in 3.1, 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 pipelayers.This document also specifies additional requirements for rear mounted winches.This document does not provide performance requirements for safety related functions of control system(s).The following significant and relevant hazards are not covered in this document:- Transmission of power between self-propelled machinery (or tractor) and recipient machinery;- Laser;- Lightning.Pipelayers with rotating upper structure are excluded from the scope of this document.This document is not applicable to pipelayers manufactured before the date of publication of this document by CEN.