Flashcards in NFPA 13 Deck (7)
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.
What is required to space ESFR sprinklers closer than 8-ft apart?
Not allowed. Section 220.127.116.11: “Minimum Distance Between Sprinklers. Sprinklers shall be spaced not less than 8 ft (2.4 m) on center.”
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.18.104.22.168: “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.”
The RTI of a standard response sprinkler is ___
(meter-second)1/2 or more
80. Section 22.214.171.124* “General Sprinkler Characteristics. (b) Sprinklers defined as standard response have a thermal element with an RTI of 80 (meter-seconds)1⁄2 or more.
When are sidewall sprinklers allowed to be installed
closer than 4 ft from light fixtures or similar
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
Buildings more than ___ feet high must have an automatic sprinkler system throughout the building