TB 149 RESIDENTIAL SPRINKLER SYSTEMS

Question 1

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

As of January 1, 2011, the State of California is requiring the installation of residential fire sprinklers in all new one and two family dwellings and manufactured homes.

This mandate uses the NFPA 13D standard that includes new construction of garages, patios extending ___’ from house and unattached structures greater than ___ sq. ft. Sprinklers are only required in livable areas of homes; attics or other combustible sealed spaces are exempt.

Answer 1

4’

200

Question 2

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

nearly 2/3 of those deaths occurring at home.

home fire can reach deadly proportions in as little as 3 minutes, with 7 to 10 minutes passing before first responders arrive.

Answer 2

Reference

Question 3

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

Head temperatures range from ___ to ___ degrees

Answer 3

135 to 175

Question 4

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

cover a minimum area of ____ x _____.

Extended coverage heads can cover a ___ x ___ area.

Answer 4

12’x 12’

20’x 20’

Question 5

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

They include; the domestic water supply, elevated tank, pressure tank, stored source or well with an adequate pump.

Most home systems in the City are connected to the domestic water supply.

Answer 5

Reference

Question 6

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

Shut-off/control valves are usually located in the garage or on the side of the house.

If difficulty locating the shut-off valve occurs, shut the water off at the street.

Answer 6

Reference

Question 7

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

These include black pipe, copper pipe, chlorinated polyvinylchloride (CPVC), polybutylene (PB), schedule 40 steel or thin walled steel.

Most all of the new systems in the City use CPVC due to cost, fabrication time, fire resistiveness, connectability to domestic water and less friction loss. CPVC is a lightweight, orange colored rigid plastic pipe.

Answer 7

Reference

Question 8

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

LADBS requires a (minimum) water demand capable of flowing ____ heads for a period of ___ minutes.

Answer 8

2

10

Question 9

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

Residential sprinklers are not subject to Chief’s Regulation No.4 testing and would only be inspected when construction is complete.

Answer 9

reference

Question 10

TB 149 RESIDENTIAL SPRINKLER SYSTEMS

There are a variety of piping materials that can be used for residential systems. These include:

black pipe
copper pipe
chlorinated polyvinylchloride (CPVC)
polybutylene (PB)
schedule 40 steel
thin walled steel.

Answer 10

reference