Table 12 Percentage of fires where the design number of sprinklers was exceeded and where the fire was controlled by sprinklers, from 1967-1968 UK data reported by (Baldwin and North 1971 )
Hazard | Number of fires reported | Design number of sprinklers | Design number of sprinklers exceeded | Controlled by sprinklers |
|---|---|---|---|---|
Extra low hazard | 30 | 4 | 23% | 90% |
Ordinary hazard 1 | 8 | 6 | 17% | 88% |
Ordinary hazard 2 | 91 | 12 | 9% | 93% |
Ordinary hazard 3 | 476 | 18 | 6% | 95% |
Extra high hazard | 14 | 29 | 3% | 79% |