BS EN 55024:1998+A2:2003 applies to information technology equipment (ITE) as defined in CISPR 22.

Harmonized standards prepared by ETSI, which cover the immunity requirements for telecommunications network equipment take precedence over BS EN 55024:1998+A2:2003.

Procedures are defined for the measurement of ITE and limits are specified which are developed for ITE and within the frequency range from 0 Hz to 400 GHz.

The object of BS EN 55024:1998+A2:2003 is to establish requirements which will provide an adequate level of intrinsic immunity so that the equipment will operate as intended in its environment.

For exceptional environmental conditions, special mitigation measures may be required.

Owing to testing and performance assessment considerations, some tests are specified in defined frequency bands or at selected frequencies. Equipment which fulfils the requirements at these frequencies is deemed to fulfil the requirements in the entire frequency range from 0 Hz to 400 GHz for electromagnetic phenomena.

The object of BS EN 55024:1998+A2:2003 is to define the immunity test requirements for equipment defined in the scope in relation to continuous and transient, conducted and radiated disturbances, including electrostatic discharges (ESD).

The test requirements are specified for each port considered.

NOTE 1 Safety considerations are not covered in this publication.

NOTE 2 In special cases, situations will arise where the level of disturbance may exceed the levels specified in this publication, for example where a hand-held transmitter is used in proximity to an equipment. In these instances special mitigation measures may have to be employed.



Cross References:
IEC 60050-161:1980
IEC 60318:1970
IEC 61000-4-2:1995
EN 61000-4-2:1995
IEC 61000-4-3:1995
EN 61000-4-3:1996
IEC 61000-4-4:1995
EN 61000-4-4:1995
IEC 61000-4-5:1995
EN 61000-4-5:1995
IEC 61000-4-6:1996
EN 61000-4-6:1996
IEC 61000-4-8:1993
EN 61000-4-8:1993
IEC 61000-4-11:1994
EN 61000-4-11:1994
CISPR 20:2002
EN 55020:2002
CISPR 22:1997
EN 55022:1998
ISO 9241-3:1992
ITU-T Recommendation I.241.1
ITU-T Recommendation I. 411