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Zones - Areas of responsibility for the company

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Safety is highest priority

At all places where flammable substances are produced, processed, transported or stored, safety is extremely important - especially in the chemical industry, petrochemical industry, in oil and natural gas production and in mining.

In order to provide the highest level of safety possible, most states legislations have developed corresponding conditions in the form of laws, regulations and standards. These now have to be implemented by companies because the operator of a plant is solely responsible for safe operation in accordance with the directive 1999/92/EC.


The area of responsibility thereby extends to

  • Stipulation of the explosive areas (zones),
  • Compilation of an explosion protection document,
  • Realization of organizational and technical measures for explosion protection,
  • Implementation of checks,
  • Use of products in Ex-areas that comply with the directive 94/9/EC.

The zone division in the IEC!

The International Electrotechnical Commission, or IEC for short (www.iec.ch) is an international standardization organization in the electrotechnology and electronics sector that is headquartered in Geneva.

 

Areas subject to gas explosion:

Zone 0
Area in which an explosive atmosphere with a mixture of air and flammable substances in the form of gas, vapor or fog is present, either constantly or in the long term.

Zone 1
Area in which it must be assumed that an explosive atmosphere with a mixture of air and flammable substances in the form of gas, vapor or fog arises during normal operation.

Zone 2
Area in which it must be not assumed that an explosive atmosphere with a mixture of air and flammable substances in the form of gas, vapor or fog arises during normal operation and if so, then only rarely and for a short time.

 

Areas with flammable dust:

Zone 20
Area in which there is an explosive atmosphere in the form of a cloud of flammable dust in the air, constantly, in the long term or frequently.

Zone 21
Area in which is must be assumed that an explosive atmosphere in the form of a cloud of flammable dust in air sometimes occurs during normal operation.

Zone 22
Area in which is must not be assumed that an explosive atmosphere in the form of a cloud of flammable dust in air sometimes occurs during normal operation, and if this happens, then only for a short time.

ecom instruments is a renowned specialist in the field of intrinsic safety.

Learn more about intrinsic safety issues, intrinsically safe products, and regulations here. Find information in our glossary, read about special cases our sign up for one of our in-depth workshops and trainings.

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