Chp 6 Terms Flashcards
Critical radiant flux
The amount of external radiant heat energy (measured in watts per square centimeter) below which a flame front will cease to propagate.
Demand area
The expected area of sprinklers that will activate as anticipated by the sprinkler design standard; essentially the projected size of the fire.
Fire barriers
Assemblies that are typically one to two hour rated and used to enclose shafts, exit stairwells, exit passageways, and horizontal exits, into separate spaces from certain hazardous areas
Fire partitions
Assemblies that are typically 1 hour rated and are used to create fire resistive corridors and to separate tenant spaces and covered Mall buildings.
Fire walls
Assemblies that are typically 2 to 4 hour rated and are used to create separate buildings within an overall structure.
Horizontal Exit
Fire red wall typically running from one exterior wall to another, used when stairwells and multi-story buildings are too far away for egress purposes.
Houseline
Class 2 standpipe system that supplies 100 GPM at 65 psi. Intended for use by building occupants.
Peened
Forcible attachment of a thermocouple to a steel column or beam.
Smoke barrier
A 1 hour fire rated assembly that has also been designed and tested to minimize the migration of smoke.