Triggering element for a fire protection system, fire protection element equipped therewith, and method for detecting the triggering of a fire protection element

The invention relates to a triggering element (1) for a fire protection system, the triggering element comprising at least one rupture body (10), which is provided with an optical waveguide (2), into which optical waveguide at least one predetermined breaking point (25) is introduced. The invention further relates to a sprinkler head or a smoke evacuation damper having at least one triggering element of this type and to a method for detecting the triggering of a sprinkler head or of a smoke evacuation damper of a fire protection system.