I agree. The reason I posed the question was that I could not find an official document, either code or standard, that actually stated if a sprinkler system was installed in a specific way that way was designed to extinguish a fire. You found the answer to my question when you mentioned NFPA 15. I think some have confused the difference between a water spray system and a sprinkler system thinking they are basically the same. After reading, I now know the difference. NFPA has differentiated the intent by creating the two different documents. There is no question, one of the secondary outcomes from a sprinkler system operation is the extinguishment of a fire. As you stated, the main concept it the control of the fire.

Thank you and John for taking the time to research and supply information on this topic.

Jim Mazerat
Forensic Investigations Group