when burning objects heat walls and other objects in an enclosed area to their ignition temperature, causing them to flame; marked by large increase in flame volume and a sudden, marked rise in gas temperature
Arcing that is caused by the breakdown of insulation between two conductors where a high current flow exists, with a high potential difference between the conductors
1 ) Rapid combustion and/or explosion of unburned gases trapped at some distance from the main fire front Usually occurs only in poorly ventilated topography 2 ) Stage of a fire at which all surfaces and objects within a space have been heated to their ignition temperature, and flame breaks out almost at once over the surface of all objects within the space
The stage of a fire at which all surfaces and objects within a space have been heated to their ignition temperature and flame breaks out almost at once over the surface of all objects in the space
-An unintended electrical discharge to ground or another phase Flashovers can occur between two conductors, across insulators to ground or equipment bushings to ground