Symbol 5319 from IEC 60417 - Title/Meaning: Alarm inhibit Function/description: To identify the alarm inhibit on control equipment.
Additional information: 
The type of alarm may be indicated inside the triangle or below the triangle.
The graphical symbol may be used for temporary alarm inhibit by replacing the negation cross with a cross of broken lines
Published in: Supplement J, 1990;2002-10-07;IEC 60417 database on 2002-11-03 by C00020
Own work using: iso.org/obp/graphics/grs/0bb775f2-2064-4b7d-bcad-7004de4036a1 200.png
Vectorization:  Mrmw