The Electromagnetic Compatibility Regulations 2005 No. 281

Regulation 4(3)

SCHEDULE 2 PHENOMENA AND EFFECTS WHICH MAY BE REGARDED AS ELECTROMAGNETIC DISTURBANCE

1.  Conducted low-frequency phenomena

• harmonics, interharmonics;

• signalling voltages;

• voltage fluctuations;

• voltage dips and interruptions;

• voltage unbalance;

• power-frequency variations;

• induced low-frequency voltages;

• DC in AC networks; and

• DC ground circuits;

2.  Radiated low-frequency phenomena—

• magnetic fields; and

• electric fields;

3.  Conducted high-frequency phenomena—

• induced continuous wave (CW) voltages or currents;

• unidirectional transients; and

• oscillatory transients;

4.  Radiated high frequency phenomena—

• magnetic fields;

• electric fields;

• electromagnetic fields;

• continuous waves; and

• transients; and

5.  Electrostatic discharge phenomena (ESD).