L Catlett - Franklin Elec wrote:
There are ANSI standards that deal directly with this question.
ASTM F 1506 is the standard covering this.
The heraldry must not pose a greater risk than if it wasn't there. If unsure, have it tested, or don't use it.
That's for NFPA 70E, I don't know enough about NFPA 2112 to answer that portion.