EN 50263:1999

1 Scope
2 Normative references
3 Object
      3.1 Emission
      3.2 Immunity
4 Definitions
5 Industrial locations
6 Conditions during testing
      6.1 Emission tests
      6.2 Immunity tests
7 Criteria for acceptance
      7.1 Emission tests
      7.2 Immunity tests
8 Test report
9 Documentation
Table 1 - Emission tests
Table 2 - Immunity tests - Enclosure port
Table 3 - Immunity tests - Power supply port
Table 4 - Immunity tests - Communication port
Table 5 - Immunity tests - Input and output ports
Table 6 - Immunity tests - Functional earth port

The objective of the standard is to specify limits and test methods for apparatus in relation to electromagnetic emissions which may cause interference in other apparatus. These emission limits represent essential electromagnetic compatibility requirements and have been selected to ensure that the disturbances generated by the apparatus, operated normally at industrial locations do not exceed a level which could prevent other apparatus from operating as intended. Test requirements are specified for the enclosure and power supply ports. Note: in special cases, for instance when highly susceptible devices are being used in proximity to the apparatus, additional mitigation measures may have to be employed.