本文件规定了承包商拟使用的支撑装置的安全要求 制造商支撑装置的示例包括:框架支架、楔块支架、屏蔽支架、成对支架 框架和推拉支撑系统，包括推进和锚固装置的组件 提供支持功能。本文件不包括输送机上的固定元件，即采煤机 设备、动力装置支腿和闸板、阀门、液压和电液控制装置、照明和 信号设施和其他辅助设备。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document stipulates the safety requirements for the use of support units intended by the manufacturer. Examples of support units are: frame supports, chock supports, shield supports, paired frames and push-pull support systems including the components of advancing and anchoring devices which provide support functions. This document excludes fixing elements on the conveyor, coal-winning equipment, power set legs and rams, valves, hydraulic and electro-hydraulic control units, lighting and signalling facilities and other ancillary equipment.All current amendments available at time of purchase are included with the purchase of this document.