The EVAC (Emergency Voice and Communication) voice alarm systems are defined by the new Fire Prevention Code as voice alarm systems for emergency purposes (s.s.e.p).

In applying the performance method to fire safety for the safeguarding of life, the objectives of the fire-fighting professional are: the direct and explicit demonstration of the possibility for all occupants of an activity to reach or remain in a safe place and the demonstration of the possibility for rescuers to operate safely. In other words, it must be demonstrated that the time available for the exodus is less than the time required for the exodus.

The EVAC systems, in addition to being included at the regulatory level as a solution for correct alerting and evacuation, are very efficient due to the possibility of sending sound messages and therefore providing precise indications for the evacuation.

Reference standards

The UNI ISO 7240-19 currently remains in Italy the reference standard for fire emergency audio systems. CEN/TS 54-32 represents a standard according with ISO 7240-19.

If the system has no fire evacuation function but only an emergency function, the reference standard for the system and components is EN 50849.

Where is it mandatory to provide an EVAC system?

At the moment it is mandatory to provide these systems in:

  • business contexts,
  • public entertainment venues,
  • hotel facilities,
  • school buildings,
  • health facilities
  • underground stations
  • airports
  • in all those environments where personnel who have not been able to receive adequate training for safe exodus access.

In the new Fire Prevention Code it is applicable in all those conditions where it has been decided on the basis of the risk assessment, therefore a category of EVAC is associated according to the level of performance of the GSA (Fire Safety Management).


Mozzanica offers support to companies, designers and consultants to identify, design, supply and maintain EVAC systems in efficient conditions.

With its qualified and trained personnel, Mozzanica designs and assembles EVAC units complete with power systems at its own workshop.


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