1. About IEC publications

What is an Extended version (EXV)?

Some standards are required to be read in conjunction with another standard, i.e. reference document.  Recognizing that it may be difficult to consult both standards simultaneously, we have now made available extended versions. The Extended version (EXV) of an official IEC Standard provides the user with a comprehensive content consisting of the standard and its reference document, with replacements or additions being highlighted in the content of the EXV. 

The EXV allow your experience with IEC Standards to be seamless and efficient as you consult key information and content in a single, easy to use document.

We currently have the following extended versions available.

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