Power supply configuration sharing

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Power outages are not allowed for Class 1 electrical loads; therefore, a UPS system that matches the capacity of the electrical equipment should be selected； For secondary electrical load, a dual-circuit reliable power supply from different bus sections is provided ； A third-level electrical load can be powered by a single power supply circuit. The DCS and SIS systems of each unit are classified as primary electrical loads; therefore, in addition to being supplied with power from two separate sources, they are also equipped with a UPS unit whose capacity matches that of the electrical equipment ； Within the project, the production units involving key hazardous chemical processes that fall under the category of \"two key areas and one major issue\", as well as the water pumps in the refrigeration systems, the electricity used for the fire protection system, and certain environmental protection devices, are classified as secondary load items; therefore, a dual-power supply system is installed for them ； Other general production equipment, maintenance and repair facilities, as well as auxiliary living facilities are classified as category III electrical load. Finally, diesel generator sets are installed as required to serve as a backup power source. The above has become the standard mode.