Alarm beacon (visual)
Offshore F&G layout practice (ISA 5.1-style letter codes) / ISO 7240 / NFPA 72 / IEC 60617 (signal lamp)
Drawn as
A circle with an X inside (the IEC lamp symbol) and short rays around it, often with the colour noted (red, yellow, blue).
Meaning
Flashing beacon for general alarm, gas or fire alarm, CO2 release or prepare-to-abandon. Colour gives the meaning. Becomes alarm-beacon.
Variants
- Some legends draw a dome with rays or write "B" in a circle
- Often combined with a sounder as one device
Tags
XL · BCN · XL