Lays down rules for signs and reference directions and reference polarities for electric currents and voltages in electric networks, as well as for the corresponding quantities in magnetic circuits.
IEC 60375:2003 history
2018IEC 60375:2018 Conventions concerning electric circuits
2003IEC 60375:2003 Conventions concerning electric and magnetic circuits
1972IEC 60375:1972 Conventions concerning electric and magnetic circuits