Classification of explosion protection zones
According to Directive 2014/34/EU, a potentially explosive area is a space in which the atmosphere could become explosive on account of the local and/or operational conditions. These potentially explosive atmospheres are divided into zones. Depending on the frequency and duration of the occurrence of hazardous, explosive atmospheres. An explosive atmosphere is defined as a mixture with air, under atmospheric conditions, of flammable substances in the form of gases, vapours, mists or dust in which, after ignition has occurred, combustion spreads to the entire unburned mixture.