Influence of the measuring instrument directive on the electrical sector

Aim of the Directive and conformity demonstration The MID, intended to facilitate the placing on the market of a wide range of measuring instruments, will apply to electricity meters. The MID is a ‘New Approach’ directive, amongst other things setting basic Essential Requirements (ERs). The MI-003 annex gives the particular requirements for electricity meters. The directive does not give the test conditions and the level of the external influences to be applied. One way for manufacturers to be able to demonstrate conformity of their products with the directive is to make use of standards that interpret the requirements, such standards having been produced as a result of a mandate issued by the European Commission. The CENELEC has received such a mandate and is drawing up a suitable standard. Another reference paper (IR46) is prepared by OIML. As both papers can be taken into account to demonstrate conformity, they have to be close to one another to keep the global approach credible.