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The Bruno Balducci Srl company designs, builds and installs suction and purifying plants complete with dedusters and ventilators with ATEX certifications destined to be used in potentially explosive atmospheres, and certifies each electrical component that is used in these plants.
For a machine to be admitted on the community market, or to receive CE marking, it must conform to the Machinery Directive 2006/42/CE and the ATEX Directive 94/9/CE on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres.
Conformity is obtained through internal control of manufacturing, for the purpose of satisfying the Essential Health and Safety Requirements and by turning in the Complete Technical Dossier to a notified body, for safekeeping to guarantee the integrity and validity of the information collected over time (Directive 94/9/CE, article 8, para. 1, letter b, point i).

Electrical equipment in ATEX classified zones
To decide how to act and which components to choose to comply with the ATEX Directive 94/9/CE, the first thing is to understand exactly in what type of zone the machine will be installed. The client company has to have the zones classified in compliance with the ATEX Directive 99/92/CE.
If the machine is destined to be installed in a classified zone, it must be protected for that hazard level to avoid introducing possible ignition sources.
Depending on the category that the equipment belongs to and the best protection method, the most suitable standards must be applied.
This implicates choosing the standard on the basis of the best type of containment for my specific case.

Product classification based on the ATEX Directive
The ATEX Directive 94/9/CE is a product directive that involves all equipment destined to be used in potentially explosive atmospheres.
This directive is also applied to mines.