Ex-pert Electrical Technologies

Dynamic elaboration on the Art & Science of Hazardous Area Protection

Ex (As per ATEX Directives)

Ex (As per ATEX Directives)

EC Mark

This Hexagon Logo with “Ex” marked inside is as per specification of ATEX ( ATmosphères EXplosives ) . This mark along with the EC mark, is carried by all equipment complying with the ATEX directives.

What is a Directive ?

directive is a legislative act of the European Union, which requires member states to achieve a particular result without dictating the means of achieving that result. It can be distinguished from regulations which are self-executing and do not require any implementing measures. Directives normally leave member states with a certain amount of flexibility as to the exact rules to be adopted. Directives can be adopted by means of a variety of legislative procedures depending on their subject matter. (Wikipedia)

Appareils destinés à être utilisés en ATmosphères EXplosives.

(French Title of the special EU Directives 94/9/EC.  ATEX derives its name from this French title )

The ATEX directive consists of the following two EU directives describing what equipment and work environment is allowed in an environment with an explosive atmosphere.

  • the ATEX 95 equipment directive 94/9/EC, Equipment and protective systems intended for use in potentially explosive atmospheres;

  • the ATEX 137 workplace directive 99/92/EC, Minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres.

The aim of directive 94/9/EC is to allow the free trade of ‘ATEX’ equipment and protective systems within the EU by removing the need for separate testing and documentation for each member state

Explosive Atmosphere is a mixture with air , under atmospheric conditions, of flammable substances in the form of gas or vapour in which, after ignition, combustion spreads throughout the unconsumed mixtures. (IEC: 60079-10 ).

The Hazardous Areas (ref: IEC 60079-10, 14)

Areas in which an explosive atmosphere is present , or may be expected to be present , in quantities such as to require special precautions for the construction , installation and use of equipment. (An Area is a three dimensional region or space)

The Hazardous Contents associated with an area , are quantified through the process of Area Classification

Objectives of Area Classifications .

The basic underlying philosophy is SAFETY of life and property by quantifying the location.A special methodology is used by virtue of which an industrial location ( 3 dimensional space ) is analyzed and classified into Classes & Zones , keeping in view the chemicals/substances involved & the industrial procedures being carried out in that location.

 The Ex Mark for ATEX certified electrical equipment 



This entry was posted on October 29, 2012 by in Uncategorized and tagged , , , , , .
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