The Priority Protection Document should be developed in each plant where there is a risk of uncontrolled explosion.

It contains information such as:

  • list of potentially explosive atmospheres,
  • classification of these spaces into zones,
  • the risk assessment of the possibility of an explosive atmosphere,
  • description of measures to protect against the effects that must be used,
  • the rules for working in explosive atmospheres.

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This document confirms that the indicated workplace is safe in terms of explosion risk.

The need to prepare an Priority Protection Document stems from the Regulation of the Minister of Economy of 8 July 2010 on minimum requirements concerning occupational safety and health, related to the possibility of occurrence of an atmosphere in the workplace” (Journal of Laws 2010 No. 138 item 931) implementing Directive 1999/92/EC ATEX USER.

Such a document must be created before starting work on a given object. Such a need arises not only when a workplace is made available for the first time. The Priority Protection Document must be identical to the actual state of the facility. Please note that an updated version of the Priority Protection Document is required when changes occur at the site, such as replacement of equipment, change of chemical substance or reorganisation of work.

The Explosion Prevention Document classifies explosive atmospheres. The explosion protection strategy of the facility depends on the results of the risk analysis for an explosive atmosphere. When designing a workplace, it is extremely important to carry out such an analysis as early as possible. This will allow you to select the appropriate protective equipment and prepare the workplace in the best possible way. This is the best time to implement an appropriate concept, as changes in later stages of an investment may lead to increased costs. In summary, the Priority Protection Document should be developed as early as possible and updated when changes occur in the workplace.


The explosion protection document allows for an adequate level of work in potentially explosive atmospheres. The process of creating accurate documentation consists of the following steps.

Classification of explosion hazard zones – a technical audit of the facilities allows for a detailed analysis. The possibility of an emission source is assessed and classified. Ventilation conditions are also an important point of assessment.

Explosion risk assessment – analyses the selection of all safety measures in relation to the existing hazard.

Inspection of technical installations – a detailed inspection is carried out of electrical installations and equipment to check that they are in technically sound condition and comply with legal requirements.

Proposal of possible repairs – if irregularities are found, a plan is drawn up to propose solutions to improve safety.

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