IEC62196-1:2014 《Plug,socket-outlets,vehicle
couplers and vehicle inlets–Conductive charging of
electric vehicle-Part1:Charging of electric vehicles up to 250A a.c and 400A
d.c》clause 7.11 and clause 7.15
IEC60309-1:2012《Plug,socket-outlets and
couplers for industrial purposes–Part1:General
requirements》clause 24.4