Specification Title: INFORMATION TECHNOLOGY EQUIPMENT – Immunity characteristics – Limits and methods of measurement

EN 55024 is equivalent to CISPR 24 and applies to, as the name implies, information technologyequipment (ITE). EN 55024 defines the immunity test requirements for information technologyequipment in relation to continuous and transient conducted and radiated disturbances. Tests within the standard include Electrostatic Discharges (ESD), Electrical Fast Transients (EFT), Surge, Power Frequency Magnetic Fields, Power interruptions, Radio Frequency Interference(RFI).

EN 55024 establishes requirements that will provide an adequate level of intrinsic immunity so that the equipment will operate as intended in its environment. The test requirements are specified and applied on port by port approach. Ports are defined and described within the standard. The ports include the overall enclosure, DC Power, AC Power, Earth, Signal, and finally Telecommunication ports.

Compliance with this standard gives partial presumption of conformity with the European EMC Directive, 2004/108/EC. Most products will also require assessment to the emissions companion standard EN 55022, for the measurement of the levels of spurious signals generated by the ITE. Additionally, devices powered via the A.C. mains, may require additional testing for power line harmonics and power line flicker.

Other documents referred to by EN 55024 are;

EN 55016-1-2:2004
EN 55020:2007
EN 55022:2010
IEC 60050-161
EN 60318-1:2009
EN 61000-4-2:2009
EN 61000-4-3:2006
EN 61000-4-4:2012
EN 61000-4-5:2006
EN 61000-4-6:2009
EN 61000-4-8:2010
EN 61000-4-11:2004