This standard specifies the three-phase four-phase internal combustion engine power stations (including automobile power stations, trailer power stations, and generator sets, hereinafter referred to as power stations) that use internal combustion engines to drive AC power frequency (50Hz), medium frequency (400Hz), and dual-frequency (50Hz, 400Hz) generators. Types, technical requirements, test methods, inspection rules, etc. of pole plugs and sockets. This standard applies to three-phase four-pole plugs and sockets for power stations with rated voltage not higher than 400V and rated frequencies of 50Hz and 400Hz. The plugs and sockets used in 60Hz power stations can be used as a reference.
JB/T 2729-2020 history
2020JB/T 2729-2020 3 phases 4 wires plug & socket for AC movable power plant
1999JB/T 2729-1999 3 phases 4 wires plug & socket for AC movable power plant