The European Commission will soon publish a note stating that standard EN-50470:2006 does not gives presumption of conformity as regards incoming electromagnetic disturbances in the range of 2-150kHz (radio noise) as required by the essential requirements in Annex I, points 1.3.3-a, 1.3.3-b and 1.3.4-4th indent, of Directive 2004/22/EC.
No transition period
As yet, the Commission did not announce a transition period, which implies that from the moment of publication, all Watt-hour meters that are placed on the market, including watt hour meters that have already been approved, must meet the requirements for 2-150kHz. Thus, meters that do not meet the requirements can no longer be placed on the market. All Watt-hour meters, including the types that already have an approval, need to be tested against the requirements for 2-150kHz. This applies for module B new approvals, module B revisions of existing approvals, module D and module H1.
Meters already placed on the market
Meters that have already been placed on the market are an issue on national level and the European Commission will not take care of that part. The national decisions will follow later.
We strongly recommend to take the expected change in requirements into consideration
NMi was already prepared to perform the tests. In recent months a specific test setup is developed with which Watt-hour meters can be tested with these phenomena. We strongly recommend to take the expected change in requirements into consideration.
Background
Some cases have been reported recently where the operation of static electricity meters for active energy has been influenced by various equipment generating disturbances in the frequency range of 2150 kHz. Further back ground information can be found in the news item New test setup.
More information
We will keep you up to date via newsletters and the website. If you have any questions, you can send an email to E nmi@nmi.nl
