IEC 60034-8:2026 CMV

IEC 60034-8:2026 CMV contains both the official standard and its commented version. The commented version provides you with a quick and easy way to compare all the changes between IEC 60034-8:2026 edition 4.0 and the previous IEC 60034-8:2007+AMD1:2014 CSV edition 3.1. Furthermore, comments from IEC TC 2 experts are provided to explain the reasons of the most relevant changes, or to clarify any part of the content.

IEC 60034-8:2026 applies to AC and DC machines and specifies:
a) rules for the identification of winding connection points;
b) marking of winding terminals;
c) direction of rotation;
d) relationship between terminal markings and direction of rotation;
e) terminal marking of auxiliary devices;
f) connection diagrams of machines for common applications.
This fourth edition cancels and replaces the third edition published in 2007 and Amendment 1:2014. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) The inclusion of turbine-type synchronous machines in the scope.