You can edit almost every page by Creating an account. Otherwise, see the FAQ.

Horn light

From EverybodyWiki Bios & Wiki


"Horn light" is the term used in American and Canadian fire alarm systems to describe the annunciators used to notify the occupants of a building that an alarm condition exists and at least that area of the building should be promptly evacuated. The device emits a very loud noise and also uses a xenon strobe light to call attention to itself.

Older horn lights were "unsupervised". These devices, when powered by a direct current voltage, simply sounded and flashed for as long as the voltage was present. Newer horn lights are supervised; these can separately annunciate and flash so that they can be silenced while still providing the visual notification that occupants should evacuate the area.

Fire safety codes generally call for all separately enclosed areas to contain at least one horn light so that the annunciation is obvious even in enclosed spaces such as conference rooms and toilet rooms.


This article "Horn light" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Horn light. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.