Voice alarm systems: the foundation of modern fire safety in buildings

A voice alarm system is an advanced fire safety system that saves lives by giving clear spoken instructions and messages in an emergency. Traditional fire bells or sirens warn of danger, but a voice alarm system takes fire safety to a new level by providing detailed evacuation instructions. The system is particularly important in large, complex or public buildings and in premises where personal safety is a particular concern, such as hotels, accommodation buildings and schools, where fast and orderly evacuation is vital.

In Finland, the need for a voice alarm or emergency announcement system is determined case by case. The solution is based on fire engineering design, the conditions of the building permit, risk assessment and the policies of the authorities. PAP Group specialises in the design, programming, commissioning and maintenance of voice alarm and emergency announcement systems in Finland.

What a voice alarm system means in practice

A voice alarm system is a system that delivers pre-recorded evacuation messages or announcements to people in the event of a fire. The voice alarm system is usually controlled by the fire alarm system and integrated as part of it. The system can be designed to start automatically under the control of the fire alarm system, or partly manually through announcements made by operating staff or the rescue authorities. The operating logic is defined for each site.

The key advantage of a voice alarm system is the clarity of its messages. The alarm tone of a fire bell or fire siren alone does not tell people what they should do or which way to go. Spoken instructions can guide people to the safest escape route, tell them in which part of the building the danger is and calm them by giving clear instructions. This clear spoken guidance makes instructions easier to understand and can support a controlled evacuation.

The system can be programmed to operate by zone. This means that different instructions can be given in different parts of the building depending on where the fire is. For example, areas close to the fire receive an immediate evacuation command, while areas further away may be told to stay calmly where they are and wait for further instructions.

Legislation and standards in Finland

In Finland, the need for a voice alarm or emergency announcement system is determined case by case on the basis of fire engineering design, risk assessment, the conditions of the building permit and the policies of the authorities. The Rescue Act 379/2011 requires the owner and occupier of a building to maintain an adequate level of fire safety. The Decree of the Ministry of the Environment on the Fire Safety of Buildings specifies these requirements for different types of building.

According to the Tukes (Finnish Safety and Chemicals Agency) guideline, evacuation alarm and emergency announcement systems controlled by a fire alarm system are divided into usage classes 3 and 4. A usage class 3 system supplements the fire alarm sounders, whereas a usage class 4 system can replace them. When a usage class 3 or 4 system controlled by the fire alarm system is installed in a building, the fire alarm contractor is responsible for coordinating the delivery of the whole, even if the installation of the announcement system is carried out by a sound systems company.

The standards also set requirements for sound level and speech intelligibility. The system must produce a sufficiently loud and clear sound to be heard clearly throughout the building, including above background noise. The required sound pressure level and how clearly the sound must stand out from background noise are determined in accordance with the standards, the ST-ohjeisto 21 guideline and the site-specific design.

PAP Group ensures that all the systems we design and deliver meet the requirements of Finnish legislation, the ST-ohjeisto 21 guideline and international standards. Our experts keep up to date with changes in legislation and ensure that our customers’ buildings always comply with the regulations.

The key components of a voice alarm system

A voice alarm system consists of several integrated components. The fire alarm control panel is the brain of the system: it receives information from the detectors and triggers the pre-recorded evacuation messages. PAP Group uses Panasonic EBL512 G3 control panels in larger sites. These panels support four loops and can be expanded into a system of up to 30 panels on very large sites.

On smaller sites, the EBL One panel, designed for simpler needs, can be used. It supports one loop and 253 addresses, which is enough for many small and medium-sized buildings. The choice of panel always depends on the size, complexity and special needs of the site.

The voice alarm system is another critical component. It consists of amplifiers, loudspeakers and a central unit. Loudspeakers are placed throughout the building in all areas to ensure that the sound can be heard evenly everywhere. The system must be sufficiently powerful and reliable, as it may be the only means of communicating with people in an emergency.

Standby power is sized on the basis of the system’s usage class, the risks of the site and the applicable standards. Systems connected to a fire alarm system use power supply equipment complying with EN 54-4. This ensures that the system also works during a power cut, which is particularly important in a fire, when the electricity network may be damaged.

Professional design and delivery

Designing a voice alarm system requires an in-depth understanding of both fire safety and the structure of the building. At the design stage, the building’s floor plans, escape routes, intended use and occupancy are analysed. Every building is unique, and the system must be tailored accordingly. It is also a good idea for the occupier of the premises to be involved at the design stage, so that all users’ needs can be taken into account from the outset.

Acoustics are a key design factor. Loudspeaker positions must be optimised so that the sound can be heard clearly everywhere without causing echoes or distortion. In large spaces, such as lobbies or sports halls, this can be challenging. Materials, furnishings and the shape of the space all affect how sound travels.

Installation work, cabling and the mounting of components are the responsibility of the electrical contractor, who ensures that all equipment is installed correctly and connected in accordance with the regulations and instructions. PAP Group’s role on site begins with commissioning and configuring the system once the installations have been completed.

PAP Group’s trained system specialists are responsible for programming, commissioning and testing the system, as well as for inspecting their own work. Programming includes defining announcement zones, loading voice messages and configuring alarm scenarios. The testing stage ensures that every detector, loudspeaker and control unit works perfectly together. The self-inspection also tests sound levels and speech intelligibility in different parts of the building and verifies that the evacuation instructions can be heard clearly.

Maintenance and periodic inspections

The operation of a voice alarm system must be ensured through regular maintenance and inspections. The Rescue Act requires rescue service equipment, such as fire alarm systems, voice alarm systems, escape lighting, smoke ventilation and fire suppression systems, to be kept in working order and appropriately maintained and inspected. The maintenance interval is determined by the equipment’s maintenance instructions and the site’s maintenance programme. In addition, an inspection body carries out a periodic inspection of a statutory fire alarm system every three years. Maintenance ensures that the system works in an emergency.

PAP Group offers comprehensive TURVA maintenance services for voice alarm systems. For the voice alarm system, the loudspeakers, amplifiers and central units are tested. We check that the voice messages are stored and play back correctly. The battery backup is also tested to make sure that the system works during a power cut. If any shortcomings or faults are found, they are recorded in a maintenance report and the customer is given a proposal for repairs.

Regular maintenance is not just a statutory obligation but also a sensible investment in safety. A well-maintained system works reliably at the critical moment and can save lives. Neglected maintenance can lead to system malfunctions precisely when the system is needed most. Research also shows that neglecting maintenance shortens the life cycle of equipment. A properly maintained system reduces its life cycle costs.

User training as part of overall safety

Although a voice alarm system is largely automatic, building staff must understand how it works. User training is an important part of commissioning the system. PAP Group provides training where needed, so that staff know how to act correctly in an emergency.

The training covers the basic functions of the system, recognising alarms, automatic alarms and manual announcements when needed. Staff learn how the system responds to different situations and what action they need to take. The training also covers how the system can be tested safely without disrupting normal operations.

It is particularly important to understand that a voice alarm system is part of a wider safety framework. It does not replace other fire safety measures, such as escape route signage, firefighting equipment or fire safety training for staff. All these elements work together to create a comprehensive safety net.

User training is not an annual requirement, but it can be refreshed as needed. For example, when staff change or the system is updated, it may be useful to arrange refresher training. This ensures that all responsible persons are up to date on how the system works.

Voice alarm systems in different types of building

The need for and implementation of voice alarm systems vary significantly by type of building. In shopping centres and malls, the system is often complex because the building has many visitors who are not familiar with the premises. Evacuation by announcement zone or evacuation zone is particularly important so that people can be guided safely out while avoiding danger areas.

In care facilities and hospitals, a voice alarm system is critical because many residents or patients are unable to move independently. The system must be designed to support staff in their evacuation work by giving clear instructions on which areas must be evacuated first and in which direction. The system can also give staff instructions on how people who need assistance should be moved.

In schools and educational institutions, a voice alarm system helps to get large numbers of people out quickly and safely. PAP Group also delivers emergency announcement and voice alarm announcement systems in smaller schools and shops. The system can give different instructions and direct people to the correct assembly points.

In office buildings, a voice alarm system is often simpler, but still essential. The system can direct employees to the nearest escape routes and provide information on how serious the situation is. In tall buildings in particular, it is important that people receive clear instructions on whether to use the stairs or wait for further instructions.

Integration with other safety systems

Modern voice alarm systems do not operate in isolation; they are integrated with the building’s other safety systems. The connection to the fire alarm system is naturally central, but the system can also be linked to access control, CCTV and building automation.

When integrated with the building automation system and the fire alarm system, the voice alarm system can trigger other safety measures. For example, the ventilation system can be shut down to prevent smoke from spreading, lifts can be sent to the ground floor and stopped, and lighting can be adjusted to illuminate escape routes.

If the site has an automatic fire alarm system connected to the Emergency Response Centre, the fire alarm system’s alarm transmission equipment relays the alarm to the Emergency Response Centre. Alarms can also be relayed to various monitoring centres or other systems as needed.

Possible future developments

The following points describe possible future developments, not requirements of current regulations or standards.

Voice alarm systems are constantly evolving along with technology. One significant development is cloud-based monitoring, which is currently being developed. This would enable remote monitoring and diagnostics of systems, making maintenance easier and fault-finding faster.

Artificial intelligence and machine learning are bringing new opportunities to voice alarm systems. Systems can learn the normal behaviour of a building and identify anomalies more effectively. They can also optimise evacuation routes in real time based on information about where people are and how the fire is spreading.

Mobile technology is increasingly being integrated into safety systems. In future, evacuation instructions may be sent directly to people’s smartphones, providing personal instructions based on their location in the building. This complements the voice alarm system and ensures that the message reaches everyone working in the building.

Standards and regulations are also constantly evolving. PAP Group’s experts closely follow developments in the industry and take an active part in standardisation work. This ensures that we stay at the forefront and can always offer our customers the most up-to-date and effective solutions.

Frequently asked questions about voice alarm systems

Is a voice alarm system mandatory in all buildings?

A voice alarm system is not mandatory in all buildings, but it is required in many public and large buildings and in premises where personal safety is a particular concern. The need is always determined case by case.

A system is typically required in buildings with many occupants, a complex layout or special groups such as children or people with reduced mobility. PAP Group’s experts can assess the needs of your site and tell you whether a voice alarm system is needed in your particular building.

How does a voice alarm system differ from traditional fire bells or fire sirens?

Traditional fire bells and fire sirens only give a general alarm tone indicating that there is an emergency in the building. A voice alarm system, by contrast, gives clear spoken instructions on what people should do and which way to go. It can give different instructions to different areas depending on where the danger is.

A usage class 4 evacuation alarm and emergency announcement system can replace fire alarm sounders, whereas a usage class 3 system supplements them.

How often does a voice alarm system need to be maintained?

The Rescue Act requires a voice alarm system to be kept in working order and appropriately maintained and inspected. The maintenance interval is determined by the system’s maintenance instructions and the site’s maintenance programme. During maintenance, all system components are checked, the audibility of announcements is tested and the battery backup is verified. PAP Group offers comprehensive maintenance services in which our trained technicians make sure the system works perfectly. Regular maintenance is essential to guarantee the reliability of the system and to meet statutory obligations. Neglected maintenance can have serious consequences in an emergency.

Can a voice alarm system also be used for other communication?

A voice alarm system is primarily a safety system, and its main purpose is emergency communication. In many buildings, however, the same announcement system can also be used for normal internal communication, such as notices or event announcements. This is possible provided that the system is designed so that emergency messages always override other announcements. Using the system for other communication can be cost-effective, but it must be ensured that the safety functions are not compromised in any situation.

How does a voice alarm system work if the power fails?

A voice alarm system always has battery backup, which ensures that it works during a power cut. The required operating time on battery power in normal and alarm condition is determined by the design guideline applied and the requirements of the site. Battery backup ensures that the system also works in a fire, when the electricity network may have been damaged or the building may have lost power. The condition of the batteries is checked regularly during maintenance, and they are replaced when necessary. PAP Group ensures that all the systems we deliver meet these requirements.

How long does it take to install a voice alarm system?

How long installing a voice alarm system takes depends on the size and complexity of the building. On a small site, the physical installation may take a few days, while in a large building the project may last several months. The electrical contractor carries out the physical installation and cabling, after which PAP Group’s trained technicians carry out programming, commissioning and testing. The design stage is also an important part of the overall schedule. We always provide a realistic schedule estimate at the start of the project and aim to minimise disruption to the building’s normal operations during installation.

Contact PAP Group

A voice alarm system is a significant investment in the overall safety of a building. A properly designed and delivered system can save lives in an emergency. PAP Group’s experts help you at every stage of the project, from design to commissioning, maintenance and servicing.

We have years of experience in delivering voice alarm systems at a wide range of sites across Finland. We have a thorough knowledge of Finnish regulations, guidelines and standards and make sure that your system meets all the requirements. We use high-quality components and reliable solutions that work year after year.

Contact PAP Group today to discuss your building’s fire safety needs together. Our experts will assess your site and offer a tailored solution that meets your specific needs. Together we can create a safer environment for everyone who uses your building.

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This article was prepared with the help of artificial intelligence. PAP Group’s fire safety experts reviewed the content before publication.