ISO 11660-2:2015规定了与ISO 4306-1中定义的移动式起重机的通道、防护装置和约束装置相关的特殊要求。 ISO 11660-1规定了在正常操作、维护、检查、安装和拆卸期间，进入控制站和ISO 4306-1中定义的起重机其他区域的一般要求。它还涉及一般的防护和约束，涉及移动部件、坠落物体或带电部件对起重机上或附近人员的保护。

ISO 11660-2:2015 establishes the particular requirements relating to access, guards and restraints for mobile cranes as defined in ISO 4306？1. ISO 11660？1 establishes the general requirements for access to control stations and other areas of cranes as defined in ISO 4306？1, during normal operations, maintenance, inspection, erection and dismantling. It also deals with guards and restraints in general, concerning the protection of persons on or near the crane with regard to moving parts, falling objects or live parts.