Ex Glossary
Ex Definitions
The most important Definitions for Explosion Proof
Protection topic
Here and below you can find some of the most important Definitions of the main terms used in the field of explosion proof protection.
Enjoy the reading!
The term Atex derives from the French phrase ATmosphères EXplosives.
Atex splits in two Directives: ATEX 1999/92/EC Directive e ATEX 2014/34/EU Direttive.
ATEX 1999/92/EC DIRECTIVE
Atex 153 “workplace” 1999/92/EC Directive – Workers
Sets out the minimum requirements for improving the health and safety protection of workers potentially at risk from explosive atmospheres.
ATEX 2014/34/EU DIRECTIVE
Atex 114 “equipment” 2014/34/EU Directive – Manufacturers
Sets out the essential health and safety requirements for the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres at EU level.
Diagram to demonstrate the 3 ingredients that must be present to produce an explosion: Fuel + Oxidizer + Source of Ignition.
An explosion occurs when an explosive atmosphere and an efficient trigger source are present at the same moment and in the same place. If one of the two is not present, no explosion will occur.
The danger of explosions exists, for example, when the following activities are carried out: Extraction, production, stocking, transportation, processing, extravasation and transfer of inflammable substances that are capable of causing an explosive atmosphere.
A place in which there is or could be an explosive atmosphere due to the presence of gas, in such a quantity as to require particular measures for the realization, installation and use of the structures.
To enable the right choice and installation of the structures (apparatus) to be made for use in hazardous areas, the classification of the danger zones is carried out according to the frequency and permanency of the dangerous explosive atmosphere. The vehicle’s protection must be suitable in proportion to the area of danger where it will be used.
Elimination of one or more components comprising the combustion triangle.
The Directive 2006/42/EC of May 17,2006 comes into effect in Europe.
The machine must be planned and built in order to avoid any kind of explosion risks caused by the machine or by gas, liquids, dusts, vapour and other substances used by the machine.
- Nature of the dangerous atmosphere
- Classification of the gases
- Temperature Class
- Classification of dusts
- Maximum surface temperature
- Probability of dangerous atmospheric presence
- Classification of the areas
Safety of industrial trucks. Operation in potentially explosive atmospheres. Use in flammable gas, vapour, mist and dust. Specifies additional technical requirements for the prevention of ignition of an explosive atmosphere of flammable gases, vapors, mists or dusts and for industrial trucks of equipment group II and cat. 2G, 3G, 2D or 3D .
Specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines hereinafter referred to as “engines” of group II cat. 2/3 and Group I M2 for use in potentially explosive atmospheres of flammable gas and vapour and dust.
The term Atex derives from the French phrase ATmosphères EXplosives.
Atex splits in two Directives: ATEX 1999/92/EC Directive e ATEX 2014/34/EU Direttive.
ATEX 1999/92/EC DIRECTIVE
Atex 153 “workplace” 1999/92/EC Directive – Workers
Sets out the minimum requirements for improving the health and safety protection of workers potentially at risk from explosive atmospheres.
ATEX 2014/34/EU DIRECTIVE
Atex 114 “equipment” 2014/34/EU Directive – Manufacturers
Sets out the essential health and safety requirements for the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres at EU level.
Diagram to demonstrate the 3 ingredients that must be present to produce an explosion: Fuel + Oxidizer + Source of Ignition.
An explosion occurs when an explosive atmosphere and an efficient trigger source are present at the same moment and in the same place. If one of the two is not present, no explosion will occur.
The danger of explosions exists, for example, when the following activities are carried out: Extraction, production, stocking, transportation, processing, extravasation and transfer of inflammable substances that are capable of causing an explosive atmosphere.
A place in which there is or could be an explosive atmosphere due to the presence of gas, in such a quantity as to require particular measures for the realization, installation and use of the structures.
To enable the right choice and installation of the structures (apparatus) to be made for use in hazardous areas, the classification of the danger zones is carried out according to the frequency and permanency of the dangerous explosive atmosphere. The vehicle’s protection must be suitable in proportion to the area of danger where it will be used.
Elimination of one or more components comprising the combustion triangle.
The Directive 2006/42/EC of May 17,2006 comes into effect in Europe.
The machine must be planned and built in order to avoid any kind of explosion risks caused by the machine or by gas, liquids, dusts, vapour and other substances used by the machine.
- Nature of the dangerous atmosphere
- Classification of the gases
- Temperature Class
- Classification of dusts
- Maximum surface temperature
- Probability of dangerous atmospheric presence
- Classification of the areas
Safety of industrial trucks. Operation in potentially explosive atmospheres. Use in flammable gas, vapour, mist and dust. Specifies additional technical requirements for the prevention of ignition of an explosive atmosphere of flammable gases, vapors, mists or dusts and for industrial trucks of equipment group II and cat. 2G, 3G, 2D or 3D .
Specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines hereinafter referred to as “engines” of group II cat. 2/3 and Group I M2 for use in potentially explosive atmospheres of flammable gas and vapour and dust.
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