BSI PD 7974-7:2019
$198.66
Application of fire safety engineering principles to the design of buildings – Probabilistic risk assessment
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 52 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Design approach |
| 11 | Figure 1 — Flowchart for demonstrating adequate safety of a design |
| 12 | Figure 2 — General flowchart for design assessment using PRA methods |
| 14 | Figure 3 — Consolidated flowchart for a design through PRA |
| 15 | 5 Acceptance criteria Figure 4 — One-dimensional representation of generalized consequence-frequency (FC) |
| 17 | Figure 5 — Generalized consequence-frequency (FC) diagram with indication of tolerability limit and negligible limit |
| 18 | Figure 6 — Flowchart to determine the applicable PRA acceptance criteria for demonstrating adequate safety |
| 19 | Figure 7 — FN diagram (cumulative exceedance frequency versus number of casualties) |
| 29 | 6 Analysis methods |
| 30 | Table 1 — Summary of discussed methods and main characteristics |
| 32 | Figure 8 — Event tree analysis Figure 9 — Fault tree analysis |
| 38 | Figure 10 — Example of typical uncertainty distribution |
| 39 | Figure 11 — Example of Tornado Chart Showing Contribution to Variance |
| 40 | 7 Data collection for PRA |
| 41 | Annex A (informative) Acceptance and tolerability criteria Table A.1 — Individual risk limits Table A.2 — Parameters and valuation of benchmark proportionality constant SCCR1life Annex B (informative) indicative probabilities |
| 42 | Table B.1 — Sprinkler reliability by occupancy based on USA experience Table B.2 — Sprinkler effectiveness (%) by occupancy based on NZ experience Table B.3 — Overall probability of fire starting in various types of occupancy |
| 43 | Table B.4 — Fire growth rate distributions Table B.5 — Fire load energy density for various types of occupancy |
| 44 | Table B.6 — System effectiveness Table B.7 — Extent of Damage in USA Fire Incidents, 1989-1994 |
| 45 | Annex C (informative) Commentary on acceptance criteria Figure C.1 — Acceptability criteria |
| 50 | Bibliography |
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