Electromagnetic compatibility (EMC). Environment - Assessment of the emission levels in the power supply of industrial plants as regards low-frequency conducted disturbances
1 Scope
This technical report recommends the procedures to assess the disturbance levels produced
by the emission of the devices, equipment and systems installed in non-public networks
in industrial environment as far as the low-frequency conducted disturbances in the
power supply are concerned; on this basis, the relevant emission limits can be derived.
It applies to low and medium voltage a.c. non-public supply at 50/60 Hz. Networks
for ships, aircraft, off-shore platforms, and railways are out of the scope of this
report.
This technical report deals with the low-frequency conducted disturbances emitted
by equipment connected to the power supply. The disturbances considered are:
• harmonics and interharmonics;
• unbalances;
• voltage changes;
• voltage dips.