Voice evacuation is an advanced fire safety system that saves lives by providing clear voice instructions and messages during an emergency. Traditional fire bells or sirens alert people to danger, but a voice evacuation system takes fire safety to a new level by providing detailed instructions on how to evacuate. The system is particularly important in large, complex, or public buildings, as well as in facilities where personal safety is a priority—such as hotels, lodging facilities, and schools—where a quick and orderly evacuation is vital.
In Finland, the need for a voice evacuation or safety announcement system is determined on a case-by-case basis. The solution is based on fire safety design, building permit requirements, risk assessments, and official guidelines. PAP Group specializes in the design, programming, installation, and maintenance of these systems in Finland.
What does "voice evacuation" mean in practice?
An audio evacuation system is a system that broadcasts pre-recorded evacuation messages or announcements to people during a fire. Typically, the fire alarm system controls the audio evacuation system, which is integrated into the fire alarm system. The system can be designed to activate automatically, triggered by the fire alarm, or partially manually via announcements made by operating personnel or emergency responders. The operating logic is defined on a site-by-site basis.
The key advantage of voice evacuation is the clarity of the messages. The alarm sound of a fire bell or fire siren alone does not tell people what they should do or in which direction they should move. Voice instructions can guide people to the safest evacuation route, indicate where in the building the emergency is occurring, and reassure people by providing clear instructions. These clear spoken instructions improve the comprehensibility of the instructions and can facilitate a controlled evacuation.
The system can be programmed to operate on a zone-by-zone basis. This means that different parts of the building can be given different instructions depending on where the fire is located. For example, areas near the fire receive an immediate evacuation order, while areas farther away may be instructed to remain calm and wait for further instructions.
Legislation and Standards in Finland
In Finland, the need for a voice evacuation or public address system is determined on a case-by-case basis based on fire safety design, risk assessment, building permit conditions, and official guidelines. The Rescue Act (379/2011) requires building owners and operators to maintain an adequate level of fire safety. The Ministry of the Environment’s Decree on Fire Safety in Buildings specifies these requirements for different types of buildings.
According to Tukes guidelines, fire alarm-controlled evacuation alarm and public address systems are classified into usage classes 3 and 4. A usage class 3 system supplements fire alarms, while a usage class 4 system can serve as a substitute for fire alarms. When a fire alarm-controlled system of usage class 3 or 4 is installed in a building, the fire alarm company is responsible for coordinating the overall implementation, even if the installation work for the public address system is performed by an audio company.
The standards also specify requirements for sound level and speech intelligibility. The system must produce sound that is sufficiently loud and clear so that it can be heard distinctly throughout the building, even over background noise. The sound pressure level required to attract attention must be at least 65 dBA throughout the coverage area and 75 dBA in sleeping areas; furthermore, the sound must stand out from background noise in accordance with the standards, the ST21 guideline, and site-specific design requirements.
PAP Group ensures that all systems we design and implement comply with Finnish legislation, the ST21 guidelines, and international standards. Our experts stay up to date on changes in legislation and ensure that our clients’ properties are always in compliance with regulations.
Key Components of Sound Evacuation
A voice evacuation system consists of several components that are integrated with one another. The fire alarm control panel is the “brain” of the system; it receives data from the detectors and triggers pre-recorded evacuation messages. PAP Group uses Panasonic EBL512 G3 fire alarm control panels in larger facilities. These control panels support four loops and can be expanded into a system of up to 30 control panels for very large facilities.
For smaller sites, the EBLOne control panel—designed for simpler needs—can be used. It supports a single loop and 253 addresses, which is sufficient for many small and medium-sized buildings. The choice of control panel always depends on the size, complexity, and specific needs of the site.
The voice evacuation system is another critical component. It consists of amplifiers, speakers, and a central unit. The speakers are placed throughout the building in all rooms to ensure that the sound is heard evenly everywhere. The system must be sufficiently powerful and reliable, as it may be the only means of communicating with people during an emergency.
The backup power supply is sized based on the system’s usage class, the risks associated with the facility, and the applicable standards. Systems connected to fire alarms use power supplies that comply with EN 54-4. This ensures that the system continues to function even during a power outage, which is particularly important in the event of a fire, when the power grid may be damaged.
Design and Implementation by Professionals
Designing a voice evacuation system requires a thorough understanding of both fire safety and the building’s structure. During the design phase, the building’s floor plans, exit routes, intended use, and number of occupants are analyzed. Every building is unique, and the system must be customized accordingly. It is also advisable for the building’s occupants to be involved in the design phase so that all their needs can be taken into account from the very beginning.
Acoustics are a key design factor. The placement of speakers must be optimized so that sound is heard clearly throughout the space without causing echoes or distortion. In large spaces, such as lobbies or sports arenas, this can be challenging. Materials, furnishings, and the shape of the space all affect how sound travels.
Installation work, cabling, and component installation are the responsibility of the electrical contractor. They ensure that all equipment is installed correctly and connected in accordance with regulations and instructions. PAP Group’s role begins on-site with system commissioning and configuration once the installations are complete.
PAP Group’s trained system specialists are responsible for the system’s programming, implementation, and testing, as well as self-tests. Programming includes defining announcement zones, uploading voice messages, and configuring alarm scenarios. During the testing phase, we ensure that every detector, speaker, and control unit works perfectly together. Self-tests also verify sound levels and speech intelligibility throughout the building and ensure that evacuation instructions can be heard clearly.
Maintenance and Periodic Inspections
The proper functioning of the voice evacuation system must be ensured through regular maintenance and inspections. Emergency response regulations require that emergency response equipment—including fire alarm systems, voice evacuation systems, exit lighting, smoke exhaust systems, and fire suppression systems—be inspected and serviced at least once a year. Maintenance ensures that the system functions properly in emergency situations.
PAP Group offers comprehensive TURVA maintenance and service for voice evacuation systems. As part of the voice evacuation system service, we test the speakers, amplifiers, and control units. We ensure that audio messages are stored and play back correctly. We also test the battery backup to ensure that the system functions during a power outage. If any deficiencies or malfunctions are detected, a maintenance report is prepared and a repair recommendation is provided to the customer.
Regular maintenance is not only a legal obligation but also a sensible investment in safety. A well-maintained system operates reliably when it matters most and can save lives. Neglected maintenance can lead to system malfunctions precisely when it is needed most. Research also shows that neglecting maintenance shortens the lifespan of equipment. A properly maintained system reduces its total cost of ownership.
User Training as Part of Overall Security
Although the voice evacuation system is largely automated, building staff must understand how it works. User training is an important part of the system’s implementation. PAP Group provides training as needed to ensure that staff know how to respond correctly in an emergency.
The training covers the system’s basic functions, identifying alarms, automatic alerts, and manual announcements when necessary. Staff will learn how the system responds to different situations and what actions they need to take. The training also covers how to safely test the system without disrupting normal operations.
It is particularly important to understand that a voice alarm system is part of a broader safety framework. It does not replace other fire safety measures, such as exit signage, firefighting equipment, or fire safety training for staff. All of these elements work together to create a comprehensive safety network.
User training is not an annual activity, but it can be updated as needed. For example, it may be helpful to organize refresher training when there is a change in personnel or in connection with system updates. This ensures that all responsible personnel are up to date on how the system works.
Sound Evacuation in Different Types of Buildings
The need for and implementation of voice evacuation systems vary significantly depending on the type of building. In shopping centers and malls, the system is often complex because there are many people moving through the building who are unfamiliar with the premises. Evacuation by announcement zone or evacuation zone is particularly important to ensure that people can be safely guided out while avoiding hazardous areas.
In care facilities and hospitals, voice-based evacuation systems are critical because many residents or patients are unable to move independently. The system must be designed to support staff in their evacuation efforts by providing clear instructions on which areas should be evacuated first and in which direction. The system can also provide instructions to staff on how to move individuals requiring assistance.
In schools and educational institutions, voice evacuation systems help quickly and safely guide large numbers of people out of the building. PAP Group also installs safety announcement and voice evacuation systems in smaller schools and stores. The system can provide various instructions and guide people to the correct assembly points.
In office buildings, voice evacuation is often simpler, but still essential. The system can guide employees to the nearest exit routes and provide information on the severity of the situation. Especially in tall buildings, it is important that people receive clear instructions on whether to use the stairs or wait for further instructions.
Integration with Other Security Systems
Modern voice evacuation systems do not operate in isolation; rather, they are integrated with other building security systems. The connection to the fire alarm system is, of course, essential, but the system can also be linked to access control, surveillance cameras, and building automation.
When integrated with the building automation system and the fire alarm system, the voice evacuation system can trigger other safety measures. For example, the ventilation system can be shut down to prevent the spread of smoke, elevators can be directed to the ground floor and stopped, and lighting can be adjusted to illuminate exit routes.
If a facility has an automatic fire alarm system connected to the emergency response center, the fire alarm’s signal transmission system ensures that the alarm information is relayed to the emergency response center. Alarms can also be relayed to various control rooms or other systems as needed.
Possible Future Trends
The following sections describe possible future trends, not the requirements of current regulations or standards.
Voice evacuation systems are constantly evolving alongside technological advancements. One significant trend is cloud-based monitoring, which is currently under development. This would enable remote monitoring and diagnostics of the systems, which would simplify maintenance and speed up troubleshooting.
Artificial intelligence and machine learning open up new possibilities for voice-guided evacuation. These systems can learn a building’s normal behavior and detect anomalies more effectively. They can also optimize evacuation routes in real time based on information about people’s locations and the spread of fire.
Mobile technology is becoming increasingly integrated into security systems. In the future, evacuation instructions can be sent directly to people’s smartphones, providing personalized guidance based on their location within the building. This complements voice-based evacuation systems and ensures that the message reaches everyone working in the building.
Standards and regulations are also constantly evolving. PAP Group’s experts closely monitor developments in the industry and actively participate in standardization efforts. This ensures that we remain at the forefront and can always offer our customers the most up-to-date and effective solutions.
Frequently Asked Questions About Voice Therapy
- Is a voice evacuation system required in all buildings?
A voice evacuation system is not mandatory in all buildings, but it is required in many public and large buildings, as well as in facilities where personal safety is a concern. In Finland, the need for a voice evacuation or emergency announcement system is determined on a case-by-case basis based on fire safety design, building permit conditions, risk assessments, and official guidelines.
Typically, such a system is required in buildings with large numbers of people, complex floor plans, or special groups such as children or people with limited mobility. PAP Group’s experts can assess your facility’s needs and advise you on whether a voice evacuation system is necessary for your specific building.
- How does an audible evacuation system differ from traditional fire bells or fire sirens?
Traditional fire bells and fire sirens only emit a general alarm sound indicating that there is an emergency in the building. A voice evacuation system, on the other hand, provides clear, spoken instructions on what people should do and in which direction they should move. It can provide different instructions for different areas depending on where the emergency is located. This clear voice guidance improves the comprehensibility of the instructions and can facilitate a controlled evacuation.
An evacuation alarm and public address system in Service Class 4 can replace fire alarms, whereas a Service Class 3 system supplements them.
- How often should the voice evacuation system be serviced?
Emergency response regulations require that the voice evacuation system be inspected and serviced at least once a year. During maintenance, all system components are checked, the audibility of announcements is tested, and battery backup is verified. PAP Group offers comprehensive maintenance services, where our trained technicians ensure the system is fully operational. Regular maintenance is essential to ensure the system’s reliability and to meet legal requirements. Neglecting maintenance can lead to serious consequences in an emergency.
- Can the voice evacuation system also be used for other types of communication?
A voice evacuation system is primarily a safety system, and its main purpose is emergency communication. In many buildings, however, the same public address system can also be used for normal internal communication, such as announcements or event notifications. This is possible as long as the system is designed so that emergency messages always take precedence over other announcements. Using the system for other types of communication can be cost-effective, but it is essential to ensure that safety functions are not compromised under any circumstances.
- How does the voice evacuation system work if the power goes out?
A voice evacuation system always includes battery backup, which ensures operation during a power outage. According to regulations, the system must operate for at least 24 hours in normal mode and at least 30 minutes during an alarm, running solely on battery power. This ensures that the system will continue to function even in the event of a fire, when the power grid may be damaged or the building is without power. The condition of the batteries is checked regularly during maintenance, and they are replaced as needed. PAP Group ensures that all systems we install meet these requirements and operate reliably under all conditions.
- How long does it take to install a voice evacuation system?
The time required to install a voice evacuation system depends on the size and complexity of the building. In a small project, the physical installation may take a few days, while in a large building, the project can take several months. An electrical contractor handles the physical installation work and cabling, after which PAP Group’s trained installers perform the programming, commissioning, and testing. The design phase is also an important part of the overall schedule. We always provide a realistic schedule estimate at the start of the project and strive to minimize disruptions to the building’s normal operations during installation.
Contact PAP Group
A voice evacuation system is a significant investment in a building’s overall safety. A properly designed and implemented system can save lives in an emergency. PAP Group’s experts will assist you through every stage of the project, from design to commissioning, as well as service and maintenance.
We have years of experience in installing voice evacuation systems in a variety of locations throughout Finland. We have a thorough understanding of Finnish regulations, guidelines, and standards, and we ensure that your system meets all requirements. We use high-quality components and reliable solutions that perform year after year.
Contact PAP Group today, and let’s discuss the fire safety needs of your property. Our experts will assess your property and provide a customized solution that meets your specific needs. Together, we can create a safer environment for everyone who uses your building.
This article was created with the help of artificial intelligence. PAP Group's fire safety experts reviewed the content prior to publication.