Historical
IEC 60255-26 Ed. 1.0 b:2004
Electrical relays - Part 26: Electromagnetic compatibility requirements for measuring relays and protection equipment
Specifies the requirements for electromagnetic compatibility for measuring relays and protection equipment. Is applicable to measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems.
International Electrotechnical Commission [iec]