HG/T 4175-2011 in English

This standard outlines the general technical requirements for the instrument power supply system in chemical plant equipment. It provides specifications for the design, installation, and operation of such systems to ensure their reliability and safety. The document covers key aspects including power supply configuration, electrical protection, and control mechanisms. It also includes guidelines for the selection of components and the implementation of maintenance procedures. The standard aims to establish a uniform approach for the power supply systems across different chemical facilities, facilitating consistent performance and compliance with industry standards. It serves as a reference for engineers and technicians involved in the planning and execution of instrument power supply systems.