When I joined Wormald in New Zealand 50 years ago they used this type of table in the promotion of Fire Sprinkler systems. The figures came from the records that Wormald kept on all sprinkler fires in Australia and New Zealand. I also think that Mather and Platt did a similar record in the UK.
In the book "Fire - Automatic Sprinklers in Australia and New Zealand 1886 - 1968" by Harry Marryatt there is very good analysis of that time period. It was updated his 1986 edition which I think was called "A Century of Fire Sprinklers"( I don't have a copy of the later book). The figures in 1968 were; 66.6% 1 head 15.6% 2 heads 5.9% 3 heads 3.2% 4 heads 1.6% 5 heads So 93% of sprinklered fires were 5 heads or less. There were 5720 recorded fires in this study. Satisfactory operation was 99.76% with 0.24% unsatisfactory incidents (14) Wormald still keep a record of sprinkler saves on our systems, but the NZ and Australian Fire Protection Associations and the NZ Fire Service try to keep a full list, but it lacks the Technical Detail that was recorded for over 100 years in the Wormald record. Trust this is of interest. Russell Gregory Christchurch, New Zealand -----Original Message----- From: Sprinklerforum [mailto:[email protected]] On Behalf Of Frans Stoop Sent: Thursday, 18 September 2014 4:53 a.m. To: [email protected] Subject: Sprinkler statistics Gentlemen, Once I saw a sprinkler statistic table saying something like this (I don't remember the exact percentages): Regarding fires that are succesfully controlled by sprinklers 50 % of the fires by 1 sprinkler 66 % of the fires by 1 or 2 sprinklers 75 % of the fires by upto 3 sprinklers 80 % of the fires by upto 4 sprinklers 83 % of the fires by upto 5 sprinklers etcetera... Does anyone recognize this table? If so, any idea where I can find it? I already found some statistics on the NFPA, AFSA, FM, SFPE and CIBV websites, but couldn't find this simple table. Met vriendelijke groet / Best regards, Frans Stoop TOS architecture & fire protection Netherlands <[email protected]> Tel. +31-24-324 0112 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
