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ATEX
HOME
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| Atex Information |
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| Scope of the
directive |
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| Differences
between the old and new directives |
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| What is a
potentially explosive atmosphere? |
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| Directive
implementation |
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| Scope of the
Directive - This Directive is adopted by the European Union (EU)
to facilitate free trade in the EU by aligning the technical and legal
requirements in the Member States for products intended for use in potentially
explosive atmospheres. The Directive covers equipment and protective systems,
which may be used in areas endangered by potentially explosive atmospheres
created by the presence of flammable gases, vapors or dusts. The Directive
covers both electrical and mechanical equipment. The Directive covers
harmonization of requirements as well as, conformity assessment procedures. |
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| Differences
between old national regulations and new Directives -
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- Only one directive for mining equipment and
other places liable to be endangered by explosive atmospheres.
- The directive indicate safety requirements for equipment intended for use in
potentially explosive environment created by the presence of dusts and safety
requirements for non-electrical apparatus intended for use in explosive
atmospheres.
- It brings the "CE" marking for equipment and protective systems, which may be
used in explosive atmospheres.
- It takes the place of national regulations for electrical apparatus. This new
directive has a larger scope than domestic standards. |
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| More information on old and new approaches on
the EEC website, ATEX page. |
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| What is a
potentially explosive atmosphere?
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An explosive atmosphere is defined as a mixture of:
- An inflammable substance (dust, gas, mists, or dusts) (A)
- The oxygen in the surrounding air = always present (B)
- Under atmospheric conditions in which, after ignition has occurred (C),
combustion spreads to the entire unburned mixture (in the case of fibers, the
dust may not completely burn after combustion). |
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| Directive
implementation - |
| Before July 1st, 2003 (enforcement date)
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Manufacturers have the choice to sell and/or to use products designed
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in compliance with the 94/9/CE Directive.
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in compliance with the national regulations in force for electrical equipment
used in explosive atmosphere.
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| From July 1st, 2003:
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Manufacturer:
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All products placed on the market have to comply with the 94/9/CE directive.
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User:
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| The user's responsibility concerns a direct
use of products depending on areas he has defined and thus depending on risks
that might occur. The installation must be in conformity with the European
Directives. All products used will have to comply with the 94/9/CE directive.
In case of defects, installed products which can not be repaired must be
replaced by products in conformity with the 94/9/CE Directive. |
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