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eLibrary > BS 60080:2020 Explosive and toxic atmospheres. Hazard detection mapping. Guidance on the placement of permanently installed flame and gas detection devices using software tools and other techniques >

BS 60080:2020 Explosive and toxic atmospheres. Hazard detection mapping. Guidance on the placement of permanently installed flame and gas detection devices using software tools and other techniques, 2020

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BS 60080:2020 Explosive and toxic atmospheres. Hazard detection mapping. Guidance on the placement of permanently installed flame and gas detection devices using software tools and other techniques, 2020

Foreword
0 Introduction [Go to Page]
0.1 General
0.2 Document structure
Figure 1 — Document structure
1 Scope
2 Normative references
3 Terms and definitions
4 Hazard identification and risk assessment [Go to Page]
Figure 2 — Risk assessment process
5 Fire and gas (F&G) philosophy [Go to Page]
5.1 General
5.2 Detector location – practical considerations
5.3 Brownfield versus greenfield considerations
6 Detection technology [Go to Page]
6.1 General
6.2 Flame detection
Figure 3 — Typical point of view (POV) alongside external view of the same envelope
Figure 4 — Example of a flame detector field of view
6.3 Heat detection
6.4 Flammable gas detection
6.5 Toxic gas detection
6.6 Ultrasonic (acoustic) gas leak detectors
7 F&G mapping techniques [Go to Page]
7.1 General
7.2 Flame properties
7.3 Flame detection
Figure 5 — Example of a single flame detector map shown in 3D and 2D views
Figure 6 — Chessboard analogy and percentage coverage
7.4 Fluid states and dispersion
Figure 7 — Jet entrainment
7.5 Flammable gas detection
Figure 8 — Example detection output
Figure 9 — Detector contributions analysis
Figure 10 — Relationship between scenarios considered and percentage of scenarios detected
7.6 Toxic gas detection
Figure 11 — Response time with a steady release of toxic gas
Table 1 — Factors in risk and mitigation
8 Detailed engineering [Go to Page]
8.1 General
8.2 Schedule constraints
8.3 Management of change
Figure 12 — Example of ventilation analysis
8.4 Human factors and ergonomics
9 Installation and commissioning (verification) [Go to Page]
9.1 Planning
9.2 Execution
10 System validation [Go to Page]
10.1 Planning
10.2 System validation test
11 Operation, maintenance and modification [Go to Page]
11.1 Evergreening
11.2 Planning
11.3 F&G detection system – execution
11.4 Maintenance
11.5 Modification (management of change)
12 Competence
Annex A (informative) Oxygen enrichment and deficiency
Annex B (informative) Flame detection – Example of volumetric-based mapping [Go to Page]
Table B.1 — Flame detection performance targets
Figure B.1 — Volume to be mapped
Figure B.2 — Grademap volume
Figure B.3 — Risk grade map
Figure B.4 — Existing devices coverage map
Figure B.5 — Existing flame detectors (coverage 1 of 2)
Figure B.6 — Existing flame detectors (coverage 2 of 2)
Figure B.7 — Proposed additional flame detector
Figure B.8 — Updated assessment coverage map (1 of 2)
Figure B.9 — Updated assessment coverage map (2 of 2)
Figure B.10 — Example of basic 2D representation of one detector
Figure B.11 — Example of 2D plane of one detector through a 3D model
Figure B.12 — Example of basic 2D representation of two detectors
Figure B.13 — Example of two detectors through a 3D model
Figure B.14 — Example of basic 2D representation of three detectors
Figure B.15 — Example of 2D plane of three detectors through a 3D model
Annex C (informative) Flammable gas detection – Volumetric-based mapping [Go to Page]
Table C.1 — Estimated blockage ratio
Table C.2 — Flammable gas detection performance targets
Figure C.1 — Volume to be mapped
Figure C.2 — Grademap volume
Figure C.3 — Risk grade map
Figure C.4 — Existing gas detectors
Figure C.5 — Existing devices coverage map (1 of 2)
Figure C.6 — Existing devices coverage map (2 of 2)
Figure C.7 — Updated detection layout
Figure C.8 — Updated assessment coverage map (1 of 2)
Figure C.9 — Updated assessment coverage map (2 of 2)
Figure C.10 — Exampe of OPGD placement in a 3D model
Annex D (informative) Risk and mitigation identification [Go to Page]
Table D.1 — Example of facility information
Table D.2 — Example performance targets
Figure D.1 — Example of facility requirements grade map
Annex E (informative) Graphic symbols for fire and gas detection location drawings [Go to Page]
Table E.1 — Graphical symbols
Bibliography [Go to Page]

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BS 60080:2020 Explosive and toxic atmospheres. Hazard detection mapping. Guidance on the placement of permanently installed flame and gas detection devices using software tools and other techniques, 2020

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please select your company type below: