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About EMC-directive 2004/108/EEC

About EMC-directive 2004/108/EEC

The EMC-directive 2004/108/EEC

The introduction of the ce mark has lead to a number of so-called New Approach directives, one of which is the EMC-directive.

The technical goal of this directive is two-way:

-- Protect the radio spectrum against interfering equipment

-- Protect equipment from common interference

All this within the higher goal of preventing trade barriers between the member states of the European Community as introduced the treaty of Rome 1957.
The EMC directive is part of the Framework of New Approach Directives governed by the CE marking directive.

As all ce related directives this is a New Approach Directive, which means that legal requirements to your equipment regarding EMC are described in global terms, called Essential Requirements, where the technical requirements are created and maintained?by the market -currently by mandate of the European Commission- by bodies such as ISO, IEC, CENELEC and ETSI in the form of technical standards.

The assessment of compliance with the directive is being governed by two articles in the EMC-directive:

-- Manufacturers declaration route acc. art. 10.1

-- Type testing using a Technical Construction File TCF route acc. to art. 10.2

Article 10.1 Manufacturers declaration

The manufacturers declaration consists of a liability statement from the manufacturer or importing agent in which he accepts the legal consequences liability for conformity of its equipment?to the EMC directives essential requirements. The manufacturer is granted permission to do the assessment himself, or to outsource it to any test-house. Using this route the manufacturer is however, bounded to apply the so called href=Harmonized Standards for "type testing". These standards are especially listed for this purpose and published in the official news-letter of the EC OJEC, and in the official journals of all EC-members.

Type testing is the term reserved within the "New Approach" for verifying and proving the compliance of?production numbers of equipment by verifying only one 1 sample, assisted by an optional statistical analysis.

Following the provisions of a suitable Harmonized Standard, one obtains the so-called Presumption of Conformity with the directive.
Any New Approach directive has it''s own list of harmonized standards, describing the technical tests and - requirements also documentation a sample of equipment has to comply with in order to merit the "Presumption of Compliance".

Article 10.2 Type testing using Technical Construction File?TCF

Type testing using a TCF is done when no suitable Harmonized Standard exists, or if the manufacturer prefers other ways of showing compliance.

This route is often used for new developments or in case of "families" of related equipment. In the latter case the application of a harmonized standard becomes too costly if a large number of closely related samples is to be investigated.

Test are carried out on representative set of samples, and by technical investigatio

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