IEC 60255: Electrical Relays

IEC 60255 specifies common requirements and rules applicable to measuring relays and protection equipment. This includes any combination of devices to form schemes for power system protection such as control, monitoring and process interface equipment in order to obtain uniformity of requirements and tests.

The IEC 60255 specifies measuring relays and protection equipment used for protection within the power system environment covered by this standard. Other standards in this series may define their own requirements which in such cases shall take precedence. For special applications (marine, aerospace, explosive atmospheres, computers, etc.), the general requirements within this standard may need to be enhanced by additional special requirements. The requirements are applicable only to relays in new condition. All tests in this standard are considered type tests, unless otherwise declared.

The object of IEC 60255 is to specify limits and test methods, for measuring relays and protection equipment, taking into account cominbations of devices to form schemes for power system protection including the control, monitoring, communication, and process interface equipment within those systems.

This standard specifies the requirements for electromagnetic compatibility for measuring relays and protection equiment. The requirements are applicable to measuring relays and protection equipment in a new condition and all tests specified are type tests only.

This IRC 60255 standard is retrieved from IEC 10-31-2013.