This standard specifies the working principle and composition, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, and quality commitment of electric DC power system insulation monitoring devices (hereinafter referred to as products). This standard applies to the design, manufacturing, selection and inspection of insulation monitoring devices in 110 V and 220 V DC power systems in power systems and other power projects.
T/ZZB 0708-2018 history
2018T/ZZB 0708-2018 Insulation monitoring device for DC power supply system