TB 149 Residential Sprinkler Systems Flashcards
As of ___, CA is requiring the installation of residential fire sprinklers in all new one or two family dwelling and manufactured homes
january 1st, 2011.
1/1/11
Including new construction of garages, patios extending ____ and _____
extending 4’ from house, unattached structures greater than 200 sq feet.
Sprinklers are only required in ___
livable areas of home
What sealed spaces are exempt?
attics
What kind of sprinklers are used?
thinner fusible links or smaller diameter bulbs
Head temperatures range from
135 to 175 degrees
Coverage of a minimum area of
12’ x 12’
Most new systems of sprinkler use ___ piping
CPVC chlorinated polyvinylchloride.
CPVC is lightweight, ___
orange colored rigid plastic pipe
Special extended coverage sprinklers can cover
up to 20’ x 20’ area
Water supply can be obtained from a variety of sources. They include; the _____.
domestic water supply, elevated tank, pressure tank, stored source or well with an adequate pump.
Piping beyond the street shut-off valve shall be installed in such a manner that the supply to the sprinklers shall not be ___ when the domestic system is being serviced (domestic water can be isolated).
turned off
Shut-off/control valves are usually located in the garage or on the side of the house. Identification signs are required by ____ but the minimum size of sign and lettering is not regulated.
LADBS
Piping Material : black pipe, copper pipe, ______, ____, schedule 40 steel or thin walled steel.
chlorinated polyvinylchloride (CPVC) / polybutylene (PB)
Most all of the new systems in the City use ___ due to cost, fabrication time, fire resistiveness, connectability to domestic water and less friction loss.
CPVC
