IEC 60038
Encyclopedia
International Standard
IEC 60038 defines a set of standard voltages for use in low voltage
and high voltage
AC
electricity supply systems.
). The three-phase voltages are for use in either four-wire (with neutral) or three-wire (without neutral) systems.
Suppliers using 220 V / 380 V or 240 V / 415 V systems were expected by the standard to migrate to the recommended value of 230 V / 400 V by the year 2003. This migration has already been largely completed, at least within the European Union.
International Standard
The term International Standard may refer to*International standard*International Standard , a category of ballroom dance*International Standard Version, an English Bible translation....
IEC 60038 defines a set of standard voltages for use in low voltage
Low voltage
Low voltage when used as an electrical engineering term concerning an electricity supply grid or industrial use, broadly identifies safety considerations of the system based on the voltage used. The meaning of the term "low voltage" is somewhat different when used with regard to a more typical end...
and high voltage
High voltage
The term high voltage characterizes electrical circuits in which the voltage used is the cause of particular safety concerns and insulation requirements...
AC
Alternating current
In alternating current the movement of electric charge periodically reverses direction. In direct current , the flow of electric charge is only in one direction....
electricity supply systems.
Low voltage
Where two voltages are given below separated by “/”, the first is the root-mean-square voltage between a phase and the neutral connector, whereas the second is the corresponding root-mean-square voltage between two phases (exception: the category shown below called "One Phase", where 240 V is the root-mean-square voltage between the two legs of a split phaseSplit phase
A split-phase electricity distribution system is a 3-wire single-phase distribution system, commonly used in North America for single-family residential and light commercial applications. It is the AC equivalent of the original Edison 3-wire direct current system...
). The three-phase voltages are for use in either four-wire (with neutral) or three-wire (without neutral) systems.
Three-phase 50 Hz
- 230 V / 400 V
- 400 V / 690 V
- 1000 V
Suppliers using 220 V / 380 V or 240 V / 415 V systems were expected by the standard to migrate to the recommended value of 230 V / 400 V by the year 2003. This migration has already been largely completed, at least within the European Union.
External links
- Definition of Voltage ranges as per IEC 60038 – WIKI - Electrical Installation Guide