This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of DC regulated power supplies for coal mines. This standard applies to single-phase AC power supply and DC regulated power supply for coal mines with rated output voltage below 60V (hereinafter referred to as regulated power supply).
MT/T 408-1995 history
1995MT/T 408-1995 DC regulated power supply for coal mine