Machines for underground mining. Safety requirements for roof supports hydraulic props. Part 3: Hydraulic and electro-hydraulic control systems

This technical document establishes specific safety requirements for support beams used in underground mining operations, with a particular focus on the third segment addressing hydraulic and electro-hydraulic control systems. It defines the essential criteria necessary to ensure operational safety and reliability within complex mining environments. The scope covers design specifications, performance parameters, and testing protocols relevant to the control mechanisms that govern the movement and support functions of hydraulic equipment. By setting clear guidelines for the integration of hydraulic and electronic components, this specification aims to mitigate risks associated with system failures or malfunctions during extraction activities. It provides a framework for manufacturers and operators to align their equipment with established safety norms. The content details the necessary interactions between fluid power systems and electronic controls, ensuring that all elements function cohesively under demanding conditions. Adherence to these guidelines helps in maintaining the structural integrity of mining infrastructure and protecting personnel involved in underground operations. This document serves as a reference for technical compliance in the manufacturing and maintenance of specialized mining support apparatus.