This part of GB/T 12970 specifies the product classification, general technical requirements, inspection rules and packaging of annealed copper wire for electrical purposes. This part applies to annealed copper stranded wires, copper brush wires and annealed copper antennas for communication in electrical installations and motors.
GB/T 12970.1-2009 Referenced Document
GB/T 321-2005 Preferred numbers-Series of preferred numbers
GB/T 3953-2009 Round copper wire for electrical purposes