In accordance with the “Regulation on the Protection of Employees from the Dangers of Explosive Environments”, these substances are considered to be substances that can create an explosive atmosphere unless the presence of flammable and/or mixtures of flammable substances with air is proven by research. does not cause explosion independently. The locations of these substances should be divided into zones according to the frequency of occurrence of explosive atmospheres and the duration of this atmosphere. These classifications must be stated in the Explosion Protection Certificate (PKD).

The classification of hazardous places for gases and dusts is as follows.

In places where explosive atmospheres may occur, ex-proof equipment and protective systems determined as a result of the evaluations made in the Explosion Protection Document (PKD) should be used and selected according to the categories specified in the Equipment Regulation. and Protective Systems Used in Potentially Explosive Atmospheres (2014/34/EU).

Ex-proof equipment consists of 3 categories in total. Equipment in the appropriate category for the explosive atmosphere class should be selected.

Zone 0 or Zone 20: Category 1 equipment,

Zone 1 or Zone 21: Category 1 or 2 equipment,

Zone 2 or Zone 22: Category 1, 2 or 3 equipment can be used.

ATEX regulations are basically divided into two. The first of these is the Regulation on Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres (2014/34/EU). The purpose of this Regulation is to determine the basic health and safety rules, conformity assessment procedures and procedures and principles regarding market surveillance required for the safe supply to the market of equipment and protective systems used in potentially explosive environments.

The second is the “Regulation on the Protection of Employees from the Dangers of Explosive Environments”. The purpose of this regulation is to regulate the procedures and principles regarding the measures to be taken to protect employees from the health and safety hazards of explosive atmospheres that may occur in the workplace. It is mandatory to prepare an Explosion Protection Certificate (PKD) in workplaces within the scope of the regulation.

When classifying the hazards of explosive atmospheres, they should be classified according to regions according to the frequency of occurrence of the explosive atmosphere and the duration of this environment. The hazard classification for each explosive atmosphere must be evaluated in the Explosion Protection Certificate (PKD). Hazard classes are expressed as regions.

The classification of hazardous areas for gases and dusts is as follows.

Gases: Zone 0, Zone 1, Zone 2

Powders: Zone 20, Zone 21, Zone 2