Designation of hazardous zones

Designation of hazardous zones

Trust the professionals

What we will do for you

  • we classify and designate the range of hazardous zones for existing facilities
  • we classify and delineate the range of hazardous zones at the design stage in order to eliminate any potential errors and select appropriate machines and accessories
  • we will update hazardous zones (after significant changes within the hazard-affected facilities)
  • we will reduce the range and type of a designated hazardous zone

Mariusz Balicki
biuro@hazex.eu
+48 508 655 995
+48 12 2018 100

Because for the last 20 years we have completed hundreds of explosion safety projects directly in customers’ facilities. Apart from regulatory studies our activities also include physical adaptation of industrial plant to explosion safety and process requirements. This is why we have gained unique experience in all major industries – from the food industry, through the chemical and petrochemical industries, to the energy and wood industries.

PROJECTS WE HAVE TAKEN PART IN

Dedicated Explosion Safety System (DESS) for four dedusting installations in the pharmaceutical industry

Explosion risk assessment of the starch and gelatin receiving, storage and transport system

Provide a complete dust and gas extraction system for two production lines in an aluminium industry manufacturing plant located in Western Europe

Explosion safety audit of the sewage sludge drying, transport and storage divisions

Analysis and assessment of explosion risk for a dedusting filter project

Comprehensive adjustment of the production facility to the requirements of explosion and process safety conditions

Risk assessment for the flour receiving, storage and transport system

Monitoring dangerous gas concentrations with gas detection systems

Project of modernization of a bucket elevator and chips containers

Power Industry Looks after Safety of Their Facilities – Explosion Protection Document for Four Heating Plants and Two Boiler Houses

The employer is obliged to set up explosion hazard zones as it is imposed by the Regulation of the Minister of Economy of 8 July 2010 on minimum requirements for health and safety at work related to a potential risk of occurrence of an explosive atmosphere in the workplace.

The Regulation reads that the employer divides explosion hazard areas into zones and classifies them on the basis of probability and duration of an explosive atmosphere as:

  1. Zone 0: the area where the explosive atmosphere containing a mixture of air and combustible substances as gases, vapours and mists occurs permanently, frequently or for longer periods;
  2. Zone 1: the area where the explosive atmosphere containing a mixture of air and combustible substances as gases, vapours and mists may sometimes occur in normal operation;
  3. Zone 2: the area where the explosive atmosphere containing a mixture of air and combustible substances as gases, vapours and mists does not occur in normal operation and, if it occurs, it will last for a short period.
  4. Zone 20: the area where the explosive atmosphere as a flammable dust cloud in the air occurs permanently, frequently or for longer periods;
  5. Zone 21: the area where the explosive atmosphere as a flammable dust cloud in the air may sometimes occur in normal operation;
  6. Zone 22: the area where the explosive atmosphere as a flammable dust cloud in the air does not occur in normal operation and, if it occurs, it will last for a short period.

When it divides the explosion hazard areas, the employer should take into account layers, dust deposits and accumulated dust, as sources which may potentially create an explosive atmosphere. […] The employer shall mark any areas where an explosive atmosphere in quantities dangerous to safety and life may occur, at the entries to such areas, with a warning sign as shown in the attachment.

The same document imposes the obligation on the employer to hold the Explosion Risk Assessment document and the Explosion Protection Document.