DIN EN 60255-22-7 : 2004

1 Scope and object
2 Normative references
3 Definitions
4 Test severity levels
5 Test equipment
  5.1 Test generator
  5.2 Verification of the test generator
  5.3 Coupling networks
6 Test set-up
  6.1 Earthing connections
  6.2 Auxiliary equipment
7 Test procedure
8 Criteria for acceptance
9 Test report
Annex A (informative) Background information for power
        frequency tests
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Figure 1 - Port tested in this standard for measuring relays
           and protection equipment
Figure 2 - Example of Class A differential mode tests
Figure 3 - Example of Class B differential mode tests
Figure 4 - Example of common mode tests

Specifies the general requirements for power frequency immunity tests for measuring relays and protection equipment for power system protection, including the control, monitoring and process interface equipment used with those systems.