机械安全.进入机械的固定设施.第3部分：楼梯、阶梯和护栏

[中文适用范围]： 本部分的ISO 14122给出了作为 stationary machine（静止机械）一部分的无动力楼梯、踏步梯和护栏的要求，以及这些固定通道装置的无动力可调部件（例如可折叠、可滑动）和移动部件的要求。 注 1“固定”通道装置是指以某种方式（例如通过螺钉、螺母、焊接）安装，只能使用工具才能拆卸的装置。 本部分的ISO 14122规定了最低要求，当机器安装处所需的相同通道装置也是建筑或土木工程的一部分（例如楼梯、踏步梯、护栏）时，这些要求同样适用，前提是该建筑结构部分的主要功能是提供通往机器的通道。 注 2 当没有当地法规或标准时，本部分的ISO 14122也可用于标准范围之外的通道装置。 预期本部分的ISO 14122将与ISO 14122-1结合使用，以提供关于楼梯、踏步梯和护栏的要求。 ISO 14122系列整体适用于需要固定通道的静止和移动机械。不适用于电梯、自动扶梯或其他专门设计用于在两层之间提升人员的动力通道装置。 本部分的ISO 14122不适用于在本部分发布日期之前制造的机械。 [外文原描述]： ISO 14122-3:2016 gives requirements for non-powered stairs, stepladders and guard-rails which are a part of a stationary machine, and to the non-powered adjustable parts (e.g. foldable, slidable) and movable parts of those fixed means of access. NOTE 1 "Fixed" means of access are those mounted in such a manner (for example, by screws, nuts, welding) that they can only be removed by the use of tools. ISO 14122-3:2016 specifies minimum requirements that also apply when the same means of access is required as the part of the building or civil construction (e.g. stairs, stepladders, guard-rails) where the machine is installed, on condition that the main function of that part of the construction is to provide a means of access to the machine. NOTE 2 Where no local regulation or standards exists, this part of ISO 14122 may be used also for means of access which are outside the scope of the standard. It is intended that this part of ISO 14122 be used with ISO 14122‑1 to give the requirements for steps, stepladders and guard-rails. The ISO 14122 series as a whole is applicable to both stationary and mobile machinery where fixed means of access are necessary. It is not applicable to powered means of access such as lifts, escalators, or other devices specially designed to lift persons between two levels. ISO 14122-3:2016 is not applicable to machinery manufactured before the date of its publication.