Applies only to newly manufactured "combined meters", measuring more than one type of electric energy (e.g. active and reactive) and meters integrating additional functions which are not in the scope of IEC 60687, IEC 61036, IEC 61268 standards, these additional functions, all related to electric energy metering are maximum demand indicator, time switches, ripple control or radio receivers, etc.

This publication is of high relevance for Smart Grid.