AppNotes - Understanding EMC Stands and Specifications Page 2 (E



          EN 50081-1:1992 Emission/Residential, commercial and light industry
Part Frequency Range Limits Basic Standard Remarks
Enclosure







AC Mains




 30-230MHz
230-1000MHz

0-2kHz

0.15-0.5MHz
Limits decrease linearly
with log frequency
0.5-5MHz

5-30MHz

0.15-30MHz
 30dB(uV/m)
37dB(uV/m)



66-56dB(uV)
56-46dB(uV)

56dB(uV)
46dB(uV)
60dB(uV)
50dB(uV)
See basic standard		 EN 55022
Class B

EN 60555-2
EN 60555-3
EN 55022
Class B





EN 55014		 The statistical
evaluation in the basic
standard applies


The statistical
evaluation in the basic
standard applies





 ¥


†
Application Note
Â¥ =          Applicable only for apparatus containing processing devices.
† =          Applicable to apparatus covered within the scope of EN 60555-2 and EN 60555-3.                Limits for apparatus not currently covered by EN 60555-2 and EN 60555-3 are under                consideration.
Annex A
Part Frequency Range Limits Basic Standard Remarks
Signal Control
DC Power Input
DC Power Output
& Other

 0.15-0.5MHz
limits decrease linearly
with log requency
0.5-30MHz

 40-30mB(µA) quasi peak
30-20dB(µA) average

30dB(µA) quasi peak
20dB(µA) average 		CISPR
Publication 22
Amendment under
consideration Class B

 Current probe
measurement with line
terminated to reference
plane via 150W
Â