SYSTEMS - FIREPROTECTION Flashcards
Standpipes Class I
dry standpipe system, not directly connected to water supply, equipped with 2.5” outlets for used by fire department personnel. Required for non-sprinkled Group A, with occupancy greater than 1000 persons, covered in open malls, underground buildings, and on stages greater than 1000 ft.²
Standpipes Class II
wet standpipe system directly connected to water supply and equipped with 1.5 “ outlet and hoses intended for use by building occupants
Standpipes Class III
combination system directly connected to water supply and equipped with both 1.5 “ and 2.5” outlets. Required in all buildings were floor level of highest story more than 30 feet above lowest level of fire department vehicle access
Portable Fire extinguisher class A
ordinary combustibles, paper, wood, cloth. Water based agents
Portable Fire extinguisher class B
flammable liquids such as gasoline and paint. carbon dioxide, foam and halogenated agents
Portable Fire extinguisher class C
electrical equipment. Nonconductive agents
Portable Fire extinguisher class D
combustible metals. Dry powder extinguishing agent, sodium chloride or graphite
Combination ionization/photovoltaic smoke alarms
are the best
quick-response (or fast-response) sprinklers
All light hazard occupancies are required to have quick-response (or fast-response) sprinklers. These include hotels, motels, offices, residential, healthcare, and other buildings where faster sprinkler operation could enhance life safety. The biggest difference between quick-response and standard-response sprinkler heads is their activation temperatures. As the name suggests, quick-response sprinkler heads activate sooner.
Standard-response sprinklers
Standard-response sprinklers are used in factories and warehouses, where the occupancy is low.
