This standard specifies the specifications of seven-core cables for electrical connectors between vehicles and trailers. This standard applies to 12N, 24N, 12S and 24S electrical connectors. This standard is equivalent to the international standard ISO 4141-1978 "Road Vehicles-Seven-core Cable".
GB/T 5054-1985 history
2006GB/T 5054.3-2006 Road vehicles Multicore connecting cables Part 3: Construction, dimensions and marking of unscreened sheathed low-voltage cables
1985GB/T 5054-1985 Seven-core connecting cable of motor vehicles and towed vehicles