NF EN 50470-3

Electricity metering equipment - Part 3: Particular requirements - Static meters for AC active energy (class indexes A, B and C)

Le présent document s'applique uniquement aux compteurs statiques d'énergie active de classes de précision A, B et C, destinés à la mesure de l'énergie électrique active en courant alternatif sur les réseaux électriques en 50 Hz et 60 Hz, et à leurs essais de type. Le présent document entre dans le champ d'application de la Directive n° 2014/32/UE du Parlement européen et du Conseil du 26/02/2014 relative à l'harmonisation des législations des États membres concernant la mise à disposition sur le marché d'instruments de mesure.

To comply with a standard, you need to quickly understand its issues in order to determine its impact on your activity.

The Requirements department helps you quickly locate within the normative text:
- mandatory clauses to satisfy,
- non-essential but useful clauses to know, such as permissions and recommendations.

The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.

With Requirements, quickly access the main part of the normative text!

The Redline + service - standards comparator allows you to easily and simply identify major changes between the current standard and its last canceled version.

At a glance, you will be able to identify the additions, deletions or modifications to a text, table, figure and formula.


The Redlines + service is offered to you on the collection of French standards in force, in French language and in HTML and PDF format.

For an overview of the service, click on View a standard in redline format

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ