This document specifies the basic parameters, technical requirements, test methods, inspection rules, signs, labels and accompanying documents, packaging, transportation and storage requirements for intermittent charging DC power supply equipment for lithium battery DC power systems. This document is applicable to intermittent charging DC power supply equipment for station DC power systems using lithium iron phosphate batteries in 35kV ~ 220kV substations. It is the basis for product design, manufacturing, inspection and use. Substations and other power facilities with voltage levels above 220kV can Refer to use.
T/CEC 446.4-2022 history
2022T/CEC 446.4-2022 Lithium battery DC power supply system for electric power Part 4: Intermittent charging DC power supply equipment