关于移动式脚手架的通道
For mobile scaffolds, an internal ladder with a cover (preferably hinged) over the access hole in the platform is preferred over an external ladder. If an external ladder must be used, it shall be installed vertically on the narrow side of the scaffold (to minimize the potential for overturning) and a step-through opening in the guardrail system (protected by a self-closing drop-bar at toprail height) shall be provided, instead of workers having to climb over the guardrails.
对于移动脚手架,最好有内部梯子,而不是外部梯子。脚手架平台的进出通道洞口应该有盖板(最好是装铰链的)。如果必须使用外部梯子,必须垂直安装在脚手架较窄的一边(减小移动脚手架倾倒的风险),栏杆系统上必须设置一个供进出的踏步开口(这个开口应该在上栏杆的高度处用一个可以自动关闭的落杆进行防护),而不是让工人不得不从栏杆攀爬。
注意:照片里外部内部两种通道都有。只是其中的落杆被一个固定的上栏杆取代。其他的要求基本都符合上述脚手架通道标准。