IEC-152 › Historical Revision Information
Designation of phase differences by hour numbers in three-phase AC systems

IEC-152 - REPLACED BY IEC-60152 - SUPERSEDED
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Provides a means for identifying the conductors of 3-phase interconnected systems by the use of hour (clock-face) numbers, taking as a basis the phase sequence, starting from an arbitrary origin, of their applied voltages.
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29.020 (Electrical engineering in general Including voltages, general electrical terminology, electrical documentation, electrical tables, safety, fire hazard testing, etc. Electrical diagrams and charts, see 01.100.25 Electrical power stations, see 27.100 Electromagnetic compatibility, see 33.100)

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Document Number

IEC-152

Revision Level

REPLACED BY IEC-60152

Status

Superseded

Publication Date

July 1, 2021

Committee Number

3