What is Set?

Set meaning in Safety terms is

  1. An individual incendiary fire.
  2. The point or points of origin of an incendiary fire.
  3. Material left to ignite an incendiary fire at a later time.
  4. Individual lightning or railroad fires, especially when several are started within a short time.
  5. Burning material at the points deliberately ignited for backfiring, slash burning, prescribed burning, and other purposes. 


reference: Glossary A – Z | National Wildfire Coordinating Group