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Thread: POWTECH 2004: GreCon

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    Author Guest

    POWTECH 2004: GreCon

    Stand 7-337

    Spark Detection and Extinguishment Systems can be easily used in Dust Ex Zones according to ATEX

    When chemicals, lacquers and oils are produced, processed or transported, or if fuel gas is involved, one immediately sees a danger of explosion. But even organic dust, such as wood dust, can violently explode in certain conditions. Everyone who is working in the wood based industry, knows this.

    Therefore, there are rules and directives which specify the requirements if there are explosive atmospheres.

    There are two uniform directives in the EC: 94/9EG (ATEX 95) for manufacturers of equipment which is to be used in explosive atmosphere, and 1999/92/EG (ATEX 137) for users of such systems.

    These directives lay down, Europe-wide, uniform demands on the protection of labour and equipment in environments which are at risk of explosion.

    Currently every operator has to complete an explosion protection document for new plants and will have to do so for existing plants as of 1 January 2006. This document specifies, among other things, the division into different zones: zones 20, 21 or 22 for dust; zones 0, 1 or 2 for gas.

    Only equipment which is approved for the corresponding zone may be used.

    The equipment is to be marked accordingly on the type plate. If an electrical device is marked category 1 or 2, a non-electrical device category 1, or if it is a protection measure (e.g. explosion suppression) then an EC-type examination certificate is required. The manufacturer of the equipment has to submit this certificate on demand.

    The examinations are exclusively carried out by institutes (certified bodies) which are accredited at the EC in Brussels. A simple manufacturer’s certificate is not sufficient. Every user should pay attention to this.

    GreCon spark detectors and extinguishing devices as well as all accessories are available with the necessary category markings 1, 2 or 3. The examination certificate of a certified body is also available.

    Thus the use of a spark detection and extinguishment system as preventive fire protection measure is possible in dust ex zones according to the ATEX directives.

    However it is important for the user of preventive fire protection equipment to insist on the submission of an examination certificate of a certified body to be sure they use equipment which will not cause ignition sources in the sensitive dust ex zones. The ATEX 137 holds every user responsible to a great extent; in case of a damage, he might have to prove that all regulations were implemented correctly.

    Further information regarding the GreCon Spark Extinguishing System you can get during the POWTECH on our booth in hall 7 stand no. 337.

    For more information, please visit:

    Extinguish sparks before fires occur
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