BS EN 61000-3-3:2008 Historical

BS EN 61000-3-3:2008 is concerned with the limitation of voltage fluctuations and flicker impressed on the public low-voltage system. It specifies limits of voltage changes which may be produced by an equipment tested under specified conditions and gives guidance on methods of assessment.

BS EN 61000-3-3:2008 is applicable to electrical and electronic equipment having an input current equal to or less than 16 A per phase, intended to be connected to public low-voltage distribution systems of between 220 V and 250 V line to neutral at 50 Hz, and not subject to conditional connection.

Equipment which does not comply with the limits of this part of IEC 61000 when tested with the reference impedance Zref of 6.4, and which therefore cannot be declared compliant with this part, may be retested or evaluated to show conformity with IEC 61000-3-11. Part 3-11 is applicable to equipment with rated input current ?75 A per phase and subject to conditional connection.

The tests according to this part are type tests. Particular test conditions are given in annex A and the test circuit is shown in Figure 1.

NOTE The limits in this part of IEC 61000 are based mainly on the subjective severity of flicker imposed on the light from 230 V/60 W coiled-coil filament lamps by fluctuations of the supply voltage. For systems with nominal voltage less than 220 V line to neutral and/or frequency of 60 Hz, the limits and reference circuit values are under consideration.



Cross References:
IEC 60050-161:1990
IEC/TR 60725
IEC 60974-1
IEC 61000-3-2:2005
IEC 61000-3-11
IEC 61000-4-15
EN 60974-1:2005
EN 61000-3-2:2006
EN 61000-3-11:2000
EN 61000-4-15:1998
2004/108/EC
1999/5/EC


Replaces BS EN 61000-3-3:1995 which remains current.

All current amendments available at time of purchase are included with the purchase of this document.