flashover
Total room ignition
Flashover is the moment when fire spreads nearly instantaneously across a space, igniting everything simultaneously.
It occurs when heat buildup causes all combustible surfaces in a room to reach ignition temperature at once: The firefighters retreated seconds before flashover.
In electrical systems, flashover is an arc discharge across an insulator's surface, jumping where current shouldn't flow.
Starting combustion process
- rolloverVehicle flipping accident
- backdraftExplosive fire reignition
- combustionExothermic reaction with oxygen
- ceilingRoom's upper surface
compartment · flames · engulfment · pyrolysis · smoke · ventilation · suppression · sprinkler
Curved line segment
- short-circuitUnintended electrical path
- sparkTiny fiery particle
- insulationThermal transfer prevention
- conductorOne who directs musicians
dielectric · breakdown · fault · switchgear · breaker · electrode · current · transformer
ignition
Starting combustion process
- rolloverVehicle flipping accident
- backdraftExplosive fire reignition
- combustionExothermic reaction with oxygen
ceiling · compartment · flames · engulfment · pyrolysis · smoke · ventilation · suppression · sprinkler · turnout
arc
Curved line segment
- short-circuitUnintended electrical path
- sparkTiny fiery particle
- insulationThermal transfer prevention
conductor · dielectric · breakdown · fault · switchgear · breaker · electrode · current · transformer · panel
- electric arcsarc lamp, arc welder, welding arc, spark gap
- Electrical Dischargesarc, spark, lightning, corona, electric arc
- electrical gridpower grid, power grids, electrical grid, power line, power lines
- electrical problemspower failure, power loss, power outage, outage, blackout
- Explosionsexplosion, blast, detonation, boom, bang
- electrical dischargespark, arc, corona, plasma, lightning