BV wire is abbreviation form of a name plastic copper wire, the name is the general purpose of the single core hard conductor non - sheathed power cable.
B stands for category, cloth wire, T on behalf of the conductor is: copper conductor, V stands for insulation: PVC. Suitable for AC voltage 450/750V and the below power device, daily electric appliance, instrument/gauge and telecommunication equipment power cable.
BV plastic wire executive standard:
GB/T5023-2008 this standard is equivalent to IEC 60227-2007, JB/T 8734-2012

