Fire Code Section 507 Flashcards
507.2 Types of water supply
Reservoirs, pressure tanks, elevated tanks, water mains or other fixed systems capable of providing the required fire flow.
507.21 Private fire service mains
Shall be installed in accordance with NFPA 24
507.2.2 Water tanks
Shall be installed in accordance with NFPA 22
507.3.1 Fire-flow requirements
- Where street alignments mandate the installation of dead-end mains, the fire flow in gallons per minute may be adjusted downward, depending on the type of land development
- A minimum residual water pressure of 20 PSI (137.9 kPa) is to remain in the system with the required gallons per minute flowing
Fire flow by type of land development = Low density residential
2000 gpm from 3 adjacent fire hydrants flowing simultaneously
Fire flow by type of land development = High density residential and neighborhood commerical
4000 gpm from 4 adjacent fire hydrants flowing simultaneously
Fire flow by type of land development = Industrial and Commerical
6000 to 9000 gpm from 4 to 6 fire hydrants flowing simultaneously
Fire flow by type of land development = High density Industrial and Commerical (Principal business districts or Centers)
12000 gpm available to any block (where local conditions indicate that consideration must be given to simultaneous fires and additional 2000 to 8000 gpm will be required).
507.3.2 Fire hydrant spacing.
Every first story dwelling unit, first story guest room and all first story portions of any commerical or industrial building must be within _____
300 feet of an approved fire hydrant.
507.3.2 Fire hydrant spacing.
All fire hydrants shall have a ________ or ________ outlets and conform to the minimum standard of the American Water Works Associtaions for wet barrel hydrants.
2 1/2” by 4” or 4” by 4”
507.3.2 Fire hydrant spacing.
A minimum of ___ fire hydrant is to be provided at each intersection.
one
507.3.2 Fire hydrant spacing.
“built-up” type single 2 1/2” outlet hydrants (6”) pipe surmounted by angle valve shall be used in areas having a static water pressure of
210 psi or more.
507.3.2 Fire hydrant spacing.
Streets with raised median center dividers, excessive traffic loads or more than _____ in dedicated width require the installation of hydrants on _______.
80 feet / on both sides of the street.
507.3.2 Fire hydrant spacing.
Additional intermediate hydrants are required in areas where ________
restricted access, depth of lots, or blocks exceeding the maximum hydrant spacing intervals exist.
507.3.2 Fire hydrant spacing
Low density residential : net land area served per hydrant (sq. ft) / distance between hydrants on roads and fire lanes/ type of hydrants
150,000 / 600 / 2 1/2”x4” double fire hydrant
507.3.2 Fire hydrant spacing
High density residential and neighborhood commerical :
net land area served per hydrant (sq. ft) / distance between hydrants on roads and fire lanes/ type of hydrants
100,000 / 300-450 2 1/2”x4” double fire hydrant
507.3.2 Fire hydrant spacing
Industrial and commerical :
net land area served per hydrant (sq. ft) / distance between hydrants on roads and fire lanes/ type of hydrants
80,000 / 300 / 2 1/2”x4” double fire hydrant or 4”x4” double fire hydrant
507.3.2 Fire hydrant spacing
High density industrial and commerical :
net land area served per hydrant (sq. ft) / distance between hydrants on roads and fire lanes/ type of hydrants
40,000 / 300 / 4”x4” double fire hydrants
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
Low density residential :
Required fire flow
2,000 gpm from three adjacent fire hydrants flowing simultaneously
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
Low density residential :
Maximum Response Distance = Engine co / Truck co
1 1/2 miles / 2 mile
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
High density residential and neighborhood commercial : Required fire flow
4000 gpm from four adjacent fire hydrants flowing simultaneously
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
High density residential and neighborhood commercial :
Maximum response distance = Engine co / Truck co
1 1/2 miles / 2 miles
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
Industrial and Commercial : Required fire flow
6000 to 9000 from four to six fire hydrants flowing simultaneously
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
Industrial and Commercial:
Maximum response distance = Engine co / Truck co
1 mile / 1 3/4 miles
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
High density industrial and commercial (Principal business districts or centers) :
Required fire flow
12000 available to any block (where local conditions indicate that consideration must given simultaneous fires, additional 2000 to 8000 will be required.
507.3.3 Response distances that if exceed require the installation of an automatic fire sprinkler system.
High density industrial and commercial (Principal business districts or centers) : Maximum response distance = Engine co / Truck co
3/4 mile / 1 mile
507.4 Water supply test.
The fire code official shall be ___ prior to the water supply test.
notified
Water supply tests shall be witnessed by _____ or
the fire code official or approved documentation of the test shall be provided to the fire code official prior to final approval of the water supply system
507.5.1 Fire hydrant systems are required where a portion of the facility or building hereafter constructed or moved into or within the jurisdiction is _______
more than 400 feet from a hydrant on a fire apparatus access road. As measured by an approved route around the exterior of the facility or building, onsite fire hydrants and mains shall be provided where required by the fire code official.
Exception to “400 feet” is for ________ occupancies, equipped throughout with an _______. The distance requirement shall be not more than ______
Group R-3 and Group U occupancies /
with an approved automatic sprinkler system / not more than 600 feet.
507.5.1.1 Hydrants for standpipe systems.
Buildings equipped with a standpipe system installed in accordance with section 905 shall have a fire hydrant within _____
“exceptions if”
100 feet of the FDC.
Exceptions to exceed where approved by fire code official.
507.5.2. Inspection, testing and maintenance.
Fire hydrant systems shall be subject to ____
periodic tests as required by the fire code official
507.5.3. Private fire services mains and water tanks.
Shall be periodically inspected, tested and maintained in accordance with
California code of regulations, title 19, division 1, chapter 5
507.5.4. Obstructions
The fire department shall _____ from gaining immediate access to fire protection equipment or fire hydrants
not be deterred or hindered
507.5.5 Clear space around hydrants.
A ____ clear space shall be maintained around the circumference of fire hydrants, except as otherwise required or approved
3 foot
507.5.7 Fire hydrant identification.
The dept shall have the authority to identify any fire hydrant by installing a _____
a blue reflector on the street or access road adjacent to the hydrant
