BS EN 61000-2-4:1995 Electromagnetic compatibility (EMC). Part 2. Environment - Section 4. Compatibility levels in industrial plants for low-frequency conducted disturbances
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This section of IEC 1000-2 gives the requirements for the compatibility levels for industrial and non public networks. These levels are relevant to disturbances that may occur in the electrical power supply in normal operating conditions.
This standard applies to low-voltage and medium-voltage a.c. power supply at 50 Hz/60 Hz. Networks for ships, aircraft, off-shore platforms and railways are out of the scope of this standard.
This standard deals with the parameters of voltage deviations (amplitude, frequency, phase- balance and wave-shape) from the ideal sinusoidal voltage that may be expected at the in-plant point of coupling (IPC) within industrial plants or other non-public networks.
The compatibility levels are given for different electromagnetic environment classes. The disturbances here considered are relevant to the power supply only and the classes are determined by the characteristics of the supply network. This standard is in practice a classification of the a.c. supplies associated with industrial and non-public networks.
NOTE - Compatibility levels at the point of common coupling (PCC) are specified in the standards applicable to public networks or may be specified by supply authorities.
ICS 33.100.01 Electromagnetic compatibility in general
Language:
English
Subject Keywords:
Electric power networks; Electrical impedance; Noise (spurious signals); Voltage fluctuations; Electric power system disturbances; Alternating current; Electromagnetic compatibility; Grades (quality); Electromagnetic radiation; Electrostatics; Overvoltage; Manufacturing industries; Transient voltages; Harmonics; Electrical installations; Industrial facilities; Magnetic fields; Electric power distribution; Electromagnetic fields; Low-voltage installations; Alternating-current power transmission