PA/GA loudspeaker (horn)
Offshore F&G layout practice (ISA 5.1-style letter codes) / ISO 7240 / NFPA 72 / IEC 60617 (loudspeaker)
Drawn as
A small rectangle with a flared trumpet (trapezoid) opening out of it, the IEC loudspeaker or horn.
Meaning
PA/GA horn loudspeaker carrying alarm tones and voice messages across the plant. Becomes pa-loudspeaker.
Variants
- Ceiling speakers in buildings are drawn as a circle with a small square
Tags
LS · PA