In the intermediate fire protection facility operator theory exam, there are more questions about building fire prevention knowledge, and there are also more questions about numerical values in building fire protection, such as fire resistance limit, smoke prevention partition, maximum allowable area, fire spacing, etc.
It is easier for candidates to memorize this kind of value when they usually practice, and many classification grades and materials need to be memorized, which is a more common test question in the elimination theory.
Let's take a look at the summary record of key values on building fire protection, which is a more important chapter in the theory, and there is a lot of content.
Knowledge of building fire protection
Classification of buildings
Height: Single multi-storey: 27m for residential buildings, 24m or more for public (industrial) buildings with a single storey.
High-rise: residential 27m, public (industrial) building 24m, non-single-storey.
Age: Ancient, Modern, Modern.
Age:
Fire Resistance Limit
Stability. Integrity: Backfire flame is greater than 10s
Thermal insulation: 140 on average, 180 on a single point
Fire and smoke prevention
Firewall 3h (4h for factory building A and B, warehouse A, B and C).
Fireproof partition wall for 2h (boiler and diesel generator with oil storage room for 3h).
Fire Partition:
The minimum area of the smoke-proof partition is 500, and the crossbeam of the smoke-proof component is greater than 50cm
Fire spacing
The height is 13m, the skirt is 6m, the three are 8m, and the four are 12m
Class B factory building and important public buildings are 50m, and open flame is 30m
Other layouts
Fire lane: Clear width 4m, 5m from wall, slope 10%.
Control room: the first floor or the basement floor, directly connected to the outside.
Pump room: There is no need to set up three basement floors or less or a height of 10m
Fire elevator: one for each fire protection zone, 60s from the first floor to the top floor, at least 800kg; The emergency landing button is within 2m horizontally and 18-2.1m
**Apron 100m, Standard Floor 2000m
Evacuate safely
High-rise civil exterior doors, stairs, and walkways are 1m 100 people.
Evacuation doors, safety exits 09m
Evacuation walkway, evacuation staircase 11m
The evacuation distance is self-spraying, and the distance is increased by 25%; 30m from any point indoors to the safety exit; The evacuation port cannot be directly connected to the outdoors, and a 10m evacuation walkway is used; The horizontal distance of the nearest edge of the safety exit is greater than 5m
Between the two evacuation floors, 50m, 5 people
Large underground structures
Refuge aisle Grade A, 6, Grade A Door + Grade B Door.
Fireproof compartment 6, Grade A door, Grade A.
The sunken plaza is 13m away and has an area of 169
Other Aggregations
The packaging quality of D and E combustibles is 1 4 or the volume is 1 2, which is calculated as Class C.
The thickness of the internal and external insulation layer of the external wall should not be less than 10mm
Building Components: