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Public Address Systems

AVEX designs and realises public address systems that are often combined with an evacuation system. Designing these systems involves a variety of devices.

Type A Evacuation System

AVEX is specialised in designing and installing Type A evacuation systems. Type A is an emergency system with a spoken message. This type of evacuation system is obligatory when an automatic fire-protection system is coupled to an autonomous fire detection plant. A Type A system is also capable of emitting a combination of a tone signal and a spoken message, if desired. A Type A system may also be extended for other purposes, such as broadcasting announcements or playing background music.

Evacuation System Type B and C

Having an Evacuation System Type B or C is often obligatory. These two systems make use of a tone signal. Many owners want to use this system also for broadcasting. AVEX offers the possibility to generate within the system the necessary tone signals to make it suitable for the broadcasting of announcements. This way broadcasting and evacuation systems can be combined and there is no need for a separate evacuation system.


Due to its many years of experience AVEX is able to provide you with excellent information about the various installation possibilities of broadcasting and evacuation systems. Furthermore we are able to carry out measurements that map the sound level of tone signals and spoken messages of an existing installation. Do you want more information on this subject or would you like to know whether an evacuation system is obligatory for your system and if so, which type? Please contact us. We would like to assist you in your choice.

Norm NEN2575

Regulations and requirements pertaining to evacuation systems are established in norm NEN2575. This norm describes the conditions and requirements an evacuation system has to comply with. It establishes, among other things, the values for the sound level and the speech understandability of the spoken messages. Moreover the system’s availability must be warranted. Thus, in case of a fire, the cabling employed must preserve its functioning for at least 30 minutes. AVEX possesses all required knowledge and expertise for the realisation of evacuation systems complying with the NEN2575 norm.


Do you want to know more about the possibilities AVEX can offer?

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