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Flashcards in NFPA 13 Deck (7)
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1

ESFR Sprinklers definition

Early Suppression Fast-Response Sprinkler. A type of fast response sprinkler that have a thermal element with an RTI of 50 (meters-seconds) or less. High-challenge fire hazards.

2

What is required to space ESFR sprinklers closer than 8-ft apart?

Not allowed. Section 14.2.9.4: “Minimum Distance Between Sprinklers. Sprinklers shall be spaced not less than 8 ft (2.4 m) on center.”

3

For sway bracing assemblies, the listed load rating should include a minimum safety factor of ___ against the ultimate break strength of the brace components and then be further reduced according to the brace angles.

Section A.18.5.2.3: “The listed load rating should include a minimum safety factor of 2.2 against the ultimate break strength of the brace components and then be further reduced according to the brace angles.”

4

The RTI of a standard response sprinkler is ___
(meter-second)1/2 or more

80. Section 3.3.205.2* “General Sprinkler Characteristics. (b) Sprinklers defined as standard response have a thermal element with an RTI of 80 (meter-seconds)1⁄2 or more.

5

When are sidewall sprinklers allowed to be installed
closer than 4 ft from light fixtures or similar
obstructions?

Section 10.3.6.1.2: “Sidewall sprinklers
shall not be installed less than 4 ft (1.2 m) from light
fixtures or similar obstructions unless the requirements
of 10.3.6.1.2.1 or 10.3.6.1.2.2 are met

6

Buildings more than ___ feet high must have an automatic sprinkler system throughout the building

55 feet

7

You must have an automatic fire sprinkler system if…

Automatic fire sprinkler systems must be installed in all newly built commercial buildings with a fire area that exceeds 5,000 square feet, after any remodeling or renovation that extends the fire area beyond 5,000 square feet, or any single tenant expansion requiring a new certificate of occupancy that increases the fire area beyond 12,000 square feet. Fire sprinkler systems must be installed throughout the building and must be designed to provide the maximum amount of coverage