Table 2 Data on sprinkler head reliability
Description | Source | Unit | Minimum | Mean | Maximum |
|---|---|---|---|---|---|
Removal | (Watanabe 1979) | per demand |  | 3.0 × 10 -6 |  |
Deformation | (Watanabe 1979) | per demand |  | 4.61 × 10 -4 |  |
Leakage | (Watanabe 1979) | per demand |  | 3.36 × 10 -4 |  |
Obstruction (heat and water) | (Watanabe 1979) | per demand |  | 1.467 × 10 -3 |  |
Partition rearrangement | (Watanabe 1979) | per demand |  | 4.89 × 10 -4 |  |
Paint loading | (Watanabe 1979) | per demand |  | 6.5 × 10 -5 |  |
Failure | (Moinuddin et al. 2009) | per demand |  | 7.82 × 10 -2 |  |
Fire detectors fail to function | (Moelling et al. 1980) | per demand | 1.99 × 10 -3 | 2.97 × 10 -3 | 4.45 × 10 -3 |
Fail to open | (Moelling et al. 1980) | per demand |  | 1.00 × 10 -6 |  |
Failure | (Ronty and Keski-Rahkonen 2004) | failures/year | 1.50 × 10 -4 | 1.70 × 10 -4 | 1.80 × 10 -4 |
Sprinkler installation | (Ronty and Keski-Rahkonen 2004) | failures/year | 8.0 × 10 -3 | 1.1 × 10 -2 | 1.4 × 10 -2 |
New (fail dangerous) | (Nash and Young 1991) | failures/year |  | 3.10 × 10 -2 |  |
Old (fail dangerous) | (Nash and Young 1991) | failures/year |  | 5.10 × 10 -2 |  |
Failure to flow water | (Finucane and Pinkney 1988) | failures/year |  | 2.0 × 10 -2 |  |
Water released but | (Finucane and Pinkney 1988) | failures/year |  | 8.0 × 10 -2 |  |
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