This document specifies the technical requirements, test methods and inspection rules, product marking, transportation and storage conditions for mechanical multi-function circuit breakers for ungrounded DC systems of 750V and below. This document applies to mechanical multi-function circuit breakers of ungrounded DC power distribution systems not higher than 750V, such as DC power supply systems in power plants, substations, and DC power supply systems for information communications.
T/CEC 363-2020 history
2020T/CEC 363-2020 Technical specifications for mechanical multifunctional circuit breakers for 750V and below ungrounded DC systems