SN EN 61000-2-4 : 2002

INTRODUCTION
1 Scope
2 Normative references
3 Definitions
   3.1 General definitions
   3.2 Phenomena-related definitions
4 Electromagnetic environment classes
5 Compatibility levels
   5.1 General comment
   5.2 Voltage deviations
   5.3 Voltage dips and short-time interruptions
   5.4 Voltage unbalance
   5.5 Temporary power-frequency variation
   5.6 Harmonics
   5.7 Interharmonics
   5.8 Voltage components at higher frequencies (above 50th
        harmonic)
   5.9 Transient overvoltages
   5.10 DC component
6 Compatibility levels
Annex A (informative) Explanations and examples for
        interharmonics
   A.1 Resolution of non-sinusoidal voltages and currents
   A.2 Time varying phenomena
   A.3 Definition of additional terms
Annex B (informative) Examples of expected disturbance levels
        in typical industrial networks
   B.1 Voltage disturbance levels in industrial networks due
        to large converters
   B.2 Voltage disturbance levels in industrial networks at
        high load
   B.3 Voltages dips and short interruption
   B.4 Transient overvoltages
Annex C (informative) Interharmonic and voltages at higher
        frequencies
   C.1 Sources of interharmonics
   C.2 Mitigation methods
   C.3 Voltages at higher frequencies
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Deals with conducted disturbances in the frequency range from 0 kHz to 9 kHz. Also provides numerical compatibility levels for industrial and non-public power distribution systems at nominal voltages up to 35 kV and a nominal frequency of 50 Hz or 60 Hz.