IEC 60152:2021
Designation of phase differences by hour numbers in three-phase AC systems
Abstract
IEC 60152:2021 specifies methods and rules for the designation of phase difference between two items in a three-phase AC system. The designations are intended to be applied in the technical documentation of industrial installations, equipment, and products, and also on markings of equipment and products.
IEC 60152:2021 cancels and replaces the first edition published in 1963. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the title has been updated to reflect the content of the document;
b) the concept of identifying conductors with hour number has been removed as the concept is considered out of date and other means for identifying conductors exists;
c) definition of hour number (clock number) and phase difference introduced.
IEC 60152:2021 cancels and replaces the first edition published in 1963. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) the title has been updated to reflect the content of the document;
b) the concept of identifying conductors with hour number has been removed as the concept is considered out of date and other means for identifying conductors exists;
c) definition of hour number (clock number) and phase difference introduced.
Look inside
Additional information
| Publication type | International Standard |
|---|---|
| Publication date | 2021-07-09 |
| Edition | 2.0 |
| Available language(s) | English/French |
| TC/SC | TC 3 - Documentation, graphical symbols and representations of technical informationrss |
| ICS | 29.020 - Electrical engineering in general |
| Stability date | 2030 |
| Pages | 13 |
| File size | 1147 KB |
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