Activation element
The activation element ( FSE ) is part of a fire alarm system (FAS) according to DIN 14675 . It is used by the fire brigade to trigger a fire alarm on an object from the outside . The FSE is a key switch for which the fire brigade has a key. When a fire alarm is triggered , the fire brigade key depot (FSD for short) opens . From this, the fire brigade can remove the key to the property after opening another flap.
Application example
Someone detects flames in an object and notifies the fire department. If the fire alarm system has not yet recognized the fire, the fire brigade cannot take the property key from the FSD. In this case, the emergency services can trigger the FSE with a special key, whereupon the outer FSD flap can be opened and, after unlocking the inner flap, the object key can be removed. In contrast to the usual triggering, pulling the disconnection element of a fire alarm system that was built in accordance with DIN 14675 does not activate any fire control systems that, for example, move the elevators to the ground floor or initiate smoke extraction measures. However, since the rules for the behavior of the BMA are drawn up by the locally responsible fire protection department, locally deviating controls may exist that also trigger the fire controls.
Because after the activation of the activation element a normal activation of the BMA takes place, this is also transmitted to the control center . This means that the key cannot be stolen unnoticed.
As a further safety measure, the FSE can be attached at the appropriate height so that a ladder is required to reach it. This reduces the risk of sabotage (e.g. sticking the lock with chewing gum or superglue). In many cities, when a fire alarm system is alarmed, the police are also alerted in order to secure the property. If this is not the case, the release of the FSE can also be linked to the intrusion alarm in a hazard alarm system, in which case a security service is automatically alerted. The installation position and height is specified in the technical connection requirements for fire alarm systems.
Web links
- Leaflet fire brigade key depot (FSD) according to DIN 14675 (accessed on March 20, 2020)
- Information on the procedure for triggering fire alarm systems (accessed on March 20, 2020)
- Fire brigade peripheral devices - BHE Bundesverband (accessed on March 20, 2020)
- Installation instructions for the activation element (FSE) (accessed on March 20, 2020)
- Use of a fire brigade key depot and / or key tube / switch (accessed on March 20, 2020)