DENIOS AG
Dehmer Strasse 58-66
32549 Bad Oeynhausen
br>Tel.: +49 5731753-0
Email: info@denios.ie
Internet: www.denios.ie

Fire-rated cabinets for ATEX zones - What do I need to know?

Within DSEAR, an explosive atmosphere is defined as a mixture of dangerous substances with air, under atmospheric conditions, in the form of gases, vapours, mist or dust in which, after ignition has occurred, combustion spreads to the entire unburned mixture.

You need to carry out a risk assessment to determine if your storage cabinet needs to be zoned as a hazardous area.

Where there are flammable vapours present any electrical equipment that is installed needs to be ATEX rated.

What is ATEX?

ATEX is the name commonly given to the two European Directives for controlling explosive atmospheres:

1) Directive 99/92/EC (also known as 'ATEX 137' or the 'ATEX Workplace Directive') is about the minimum requirements for the protection of the workforce, who may be at risk in explosive atmospheres. More information on how this applies in the UK is available on the HSE website.

2) Directive 94/9/EC (also known as 'ATEX 95' or 'the ATEX Equipment Directive') relates to the use of equipment and systems in potentially explosive atmospheres. More information is available on the HSE website here

ATEX Zones

1

Zone classifications for gases, vapours & mists:

Zone 0 - A place in which an explosive atmosphere consisting of a mixture with air of dangerous substances in the form of gas, vapour or mist is present continuously or for long periods or frequently.

Zone 1 - A place in which an explosive atmosphere consisting of a mixture with air of dangerous substances in the form of gas, vapour or mist is likely to occur in normal operation occasionally.

Zone 2 - A place in which an explosive atmosphere consisting of a mixture with air of dangerous substances in the form of gas, vapour or mist is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

2

Zone classifcations for dusts:

Zone 20 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is present continuously, or for long periods or frequently.

Zone 21 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally.

Zone 22 - A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

3

Zone classification & corresponding equipment categories:

Zone 0 or zone 20 - category 1 equipment

Zone 1 or zone 21 - category 2 equipment

Zone 2 or zone 22 - category 3 equipment

Find out more about ATEX Zones with the HSE guidance.

ATEX Equipment

Areas classified into zones must be protected from sources of ignition. Equipment and protective systems intended to be used in zoned areas should be selected to meet the requirements of the Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 1996.

More information can be found here

Safer solutions - ATEX Certification

Only products and equipment with ATEX certification should be used in specified ATEX zones.

Less hazardous ATEX zones can self-certify products and the manufacturer can stipulate that these products conform to the required standards.

Highly dangerous ATEX zones must have their products inspected and approved by a Notified Body.

See the list of EU authorised Notified Bodies.

DENIOS fire-rated cabinets and containers can be ATEX certified.

Talk to one of our UK experts to discuss your particular needs.

More DENIOS expertise on similar topics.

Whitepaper

Ventilation of Hazardous Materials Cabinets

This free DENIOS white paper shows you various venting alternatives and their differences. Find out why you should keep recirculation filters in mind as an alternative to exhaust air systems.

Read more
Checklist

How to store gas cylinders correctly outdoors

Our checklist shows you how to choose the right location for your gas cylinder storage facility and design it in compliance with the law, how to ensure safe operation on a day-to-day basis and which maintenance and inspection obligations must be complied with.

Read more
Article

Maintenance of fire-resistant cabinets for hazardous substances

For the storage of flammable liquids in workrooms, a fire protection cabinet is required that meets the strict requirements of EN 14470-1. To ensure that your hazardous substances cabinet complies with these requirements in the long term, regular maintenance including a fire protection usability test is required.

Read more
Poster

Recognising and handling defective lithium batteries

With this free DENIOS poster, you can systematically check whether your lithium battery is showing concrete signs of a defect and add practical tips from experts to your action plan for defective lithium batteries.

Read more
Load more items 4 of 75 articles were loaded
i

The specialist information on this page has been compiled carefully and to the best of our knowledge and belief. Nevertheless, DENIOS AG cannot assume any warranty or liability of any kind, whether in contract, tort or otherwise, for the topicality, completeness and correctness either towards the reader or towards third parties. The use of the information and content for your own or third party purposes is therefore at your own risk. In any case, please observe the locally and currently applicable legislation.

Menu
Log in
Your basketAdded to basket
Go to basket
We would be pleased to provide you with advice!

Give us a call or fill out the form and we will get back to you as soon as possible.

Mon - Thu: 08:30 - 17:00 | Fri: 08:30 - 16:00
i

Calls are handled by our UK team. All sales are processed via our German parent company so are VAT* / tariff free where applicable. *Must be fully IE VAT registered