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(dop) 1999-02-01 This is the date when this standard was published in
the Official Journal of the European Communities and may be used for demonstrating
conformity with the EMC Directive.
(dow) 2001-07-01 This is the date when all conflicting or previous
standards are withdrawn and this standard must be used.
Following is the requirements for EN 55024:1998
Table 1 - Immunity, enclosure port
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Environmental phenomenon |
Test specification |
Units |
Basic Standard |
Remarks |
Performance criterion |
| 1.1 |
Power-frequency magnetic field |
50 1 |
Hz A/m (r.m.s.) |
IEC 61000-4-8 |
See 1) |
A See annex B of EN 55024 |
| 1.2 |
Radio-frequency electromagnetic field Amplitude
modulation |
80 – 1000 3
80 |
MHz V/m (unmodulated, r.m.s.)
% AM (1 kHz) |
IEC 61000-4-3 |
The test level specified is prior to
modulation See 2) |
A |
| 1.3 |
Electrostatic discharge |
4 (Contact discharge) 8 (Air discharge) |
kV (charge voltage) kV (charge voltage) |
IEC 61000-4-2 |
|
B |
| 1) Applicable only to equipment
containing devices susceptible to magnetic fields, such as CRT monitors, Hall elements,
electrodynamic microphones, magnetic field sensors, etc. 2) The frequency
range is scanned as specified. However, when specified in annex A, an additional
comprehensive functional test shall be carried out at a limited number of frequencies. The
selected frequencies are: 80, 120, 160, 230, 434, 460, 600, 863 and 900 MHz (± 1%). |
Table 2 - Immunity, signal ports and telecommunication ports
| |
Environmental phenomenon |
Test specification |
Units |
Basic Standard |
Remarks |
Performance criterion |
| 2.1 |
Radio-frequency continuous conducted |
0.15 - 80 3
80 |
MHz V (unmodulated, r.m.s.)
% AM (1 kHz) |
IEC 61000-4-6 |
See 1) and 3) |
A |
| 2.2 |
Surge Line to ground |
1 1.2/50 (8/20) |
kV (peak) Tr/Th m
s |
IEC 61000-4-5 |
See 2) and 4) |
B |
| 2.3 |
Fast transients |
0.5 5/50
5 |
kV (peak) Tr/Th ns
kHz repetition frequency |
IEC 61000-4-4 |
See 3) |
B |
| 1) The frequency range is scanned
as specified. However, when specified in annex A, an additional comprehensive functional
test shall be carried out at a limited number of frequencies. The selected frequencies for
conducted tests are: 0.2, 1, 7.1, 13.56, 21, 27.12, and 40.68 MHz (±
1%). 2) Applicable only to ports which according to the manufacturer’s
specification may connect directly to outdoor cables.
3) Applicable only to cables which according to the manufacturer’s
specification supports communication on cable lengths greater than 3m.
4) Where normal functioning cannot be achieved because of the impact of the
CDN on the EUT, no test shall be required. |
Table 3 - Immunity, input d.c. power port (excluding equipment
marketed with a a.c./d.c. power converter)
(if d.c. power is fed on conductors included in signal cables, then the
requirements of 2.1 – 2.3 only apply to this cable)
| |
Environmental phenomenon |
Test specification |
Units |
Basic Standard |
Remarks |
Performance criterion |
| 3.1 |
Radio-frequency continuous conducted |
0.15 - 80 3
80 |
MHz V (unmodulated, r.m.s.)
% AM (1 kHz) |
IEC 61000-4-6 |
See 1) |
A |
| 3.2 |
Surge |
0.5 1.2/50 (8/20) |
kV (peak) Tr/Th m
s |
IEC 61000-4-5 |
Test applied lines to earth (ground) See 2)
|
B |
| 3.3 |
Fast transients |
0.5 5/50
5 |
kV (peak) Tr/Th ns
kHz repetition frequency |
IEC 61000-4-4 |
See 3) |
B |
| 1) The frequency range is scanned
as specified. However, when specified in annex A, an additional comprehensive functional
test shall be carried out at a limited number of frequencies. The selected frequencies for
conducted tests are: 0.2, 1, 7.1, 13.56, 21, 27.12, and 40.68 MHz (±
1%). 2) Applicable only to ports which according to the manufacturer’s
specification may connect directly to outdoor cables. |
Table 4 - Immunity, input a.c. power ports (including equipment
marketed with a separate a.c./d.c. power converter)
| |
Environmental phenomenon |
Test specification |
Units |
Basic Standard |
Remarks |
Performance criterion |
| 4.1 |
Radio-frequency continuous conducted |
0.15 - 80 3
80 |
MHz V (unmodulated, r.m.s.)
% AM (1 kHz) |
IEC 61000-4-6 |
See 1) |
A |
| 4.2 |
Voltage dips |
>95 0.5 |
% reduction period |
EN 61000-4-11 |
See 2) |
B |
| 30 25 |
% reduction period |
C |
| 4.3 |
Voltage interruptions |
>95 250 |
% reduction period |
EN 61000-4-11 |
See 2) |
C |
| 4.4 |
Surges |
1.2/50 (8/20) 1 line to line
2 line to earth (ground) |
Tr/Th m s kV
(peak)
kV (peak) |
IEC 61000-4-5 |
See 3) |
B |
| 4.5 |
Fast transients |
1.0 5/50
5 |
kV (peak) Tr/Th ns
kHz repetition frequency |
IEC 61000-4-4 |
|
B |
| 1) The frequency range is scanned
as specified. However, when specified in annex A, an additional comprehensive functional
test shall be carried out at a limited number of frequencies. The selected frequencies for
conducted tests are: 0.2, 1, 7.1, 13.56, 21, 27.12, and 40.68 MHz (±
1%). 2) Changes to occur at 0 degree crossover point of the voltage waveform.
3) When the manufacturer specifies protection measures and it is impractical
to simulate these measures during the tests, then the applied test levels shall be reduced
to 0.5 kV and 1 kV.. |
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