KS C IEC 60051-2-2013(2018) Direct acting indicating analogue electrical measuring instruments and their accessories-Part 2:Special requirements for ammeters and voltmeters
2013KS C IEC 60051-6:2013 Direct acting indicating analogue electrical measuring instruments and their accessories-Part 6:Special requirements for ohmmeters(impedance meters) and conductance meters
2008KS C IEC 60055-1:2008 Paper-insulated metal-sheathed cables for rated voltages up to 18/30 kV(with copper or aluminium conductors and excluding gas-pressure and oil-filled cables)-Part 1:Tests on cables and their accessories