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BS EN 13565-2:2018:2021 Edition

BS EN 13565-2:2018:2021 Edition

$189.07

Fixed firefighting systems. Foam systems – Design, construction and maintenance

Published By Publication Date Number of Pages
BSI 2021 50
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This document specifies the requirements and describes the methods for design, installation, testing and maintenance of low, medium, and high expansion foam fire extinguishing systems. Foam systems may be used to suppress the release of toxic vapours but this application is outside the scope of this document. This document provides guidance for the design of various foam systems available to persons with knowledge and experience in determining the selection of foam fire extinguishing systems which will be effective in protecting specific hazard configurations. For the application of this standard, a risk assessment by a qualified and experienced person should be performed for both new and existing systems, however the risk assessment is outside the scope of this document. This document does not cover a risk analysis carried out by a competent person. Nothing in this document is intended to restrict new technologies or alternative arrangements, provided that the level of foam system performance prescribed in this standard is not lowered, and supported by documented evidence/test reports. All foam systems are generally unsuitable for the following: – chemicals, such as cellulose nitrate, that release sufficient oxygen or other oxidizing agents which can sustain combustion; – energized unenclosed electrical equipment; – metals such as sodium, potassium and sodium-potassium alloys which are reactive to water; – hazardous, water-reactive materials such as triethyl-aluminium and phosphorous pentoxide; – combustible metals such as aluminium and magnesium.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
2 Normative references
10 3 Terms and definitions
3.1 Definitions
14 3.2 Abbreviations
4 Foam extinguishing systems
4.1 General
4.1.1 General requirements
15 4.1.2 Application rates
16 4.1.3 Environmental considerations
4.1.4 Planning
17 4.1.5 Documentation
4.1.6 Supplementary manual foam fire fighting provisions
4.1.7 Equipment
18 4.2 Water supply
4.2.1 Water demand
4.2.2 Operating time
4.2.3 Quality of water
19 4.2.4 Power supply for water pumps
4.3 Foam concentrate
4.3.1 General
4.3.2 Foam concentrate supply – low and medium expansion foams
20 4.3.3 Foam concentrate pumps
4.3.3.1 General
4.3.3.2 Power supply for foam concentrate pumps
4.3.4 Supplementary external connections
4.4 Foam proportioners
4.5 Pipework
4.5.1 Water and foam solution pipework
21 4.5.2 Foam concentrate piping
4.5.3 Non Newtonian foam concentrate
4.5.4 Piping of aspirated foam (including that for subsurface foam applications)
4.5.5 Marking
22 4.6 Foam discharge outlets and generators
4.7 Operation and control systems
4.7.1 Detection of fires
4.7.2 Release of fixed foam extinguishing systems
23 4.7.3 Alarms
5 Flammable liquid storage tanks, bunds and process areas
5.1 General
25 5.2 Fixed cone roof tanks
5.2.1 General
26 5.2.2 Sub surface
27 5.2.3 Restrictions for semi-subsurface-mode
5.2.4 Restrictions for subsurface mode
28 5.3 Floating roof tanks
5.3.1 General
5.3.2 Number of foam discharge outlets for floating roof tanks
5.3.3 Rimseal protection
30 5.4 Bunded/diked areas and process areas
32 6 Foam sprinkler and deluge systems
6.1 Deluge systems
6.1.1 Deluge applications
6.1.2 Deluge limitations
6.1.3 Deluge design
6.2 Foam enhanced sprinkler systems
6.2.1 Foam enhanced sprinkler applications
6.2.2 Foam enhanced sprinkler limitations
6.2.3 Foam enhanced sprinkler design
33 6.3 Foam concentrate
6.3.1 Aspirated foams
6.3.2 Non aspirated foams
6.4 Foam proportioning
6.5 Drain and flushing connections
35 6.6 Supplementary hose streams
7 High expansion foam systems
7.1 General
36 7.2 Foam concentrate
7.3 Equipment
7.4 System design
7.5 Equipment location considerations
7.6 Personnel safety
37 7.7 Discharge rate
7.8 Discharge time
8 Marine loading and unloading docks
8.1 Water supplies
38 8.2 Foam concentrate
8.3 Foam water monitors
8.4 Below dock foam systems
9 Aircraft hangars
9.1 General
9.2 Fire detection
39 9.3 System design philosophy
41 9.4 System duration
9.5 Foam and water pumps
9.6 Acceptable application methods
9.7 Foam types
9.8 Monitors
9.9 Foam-water deluge systems
42 9.10 Medium expansion systems (Type 3 hangars only)
9.11 High expansion systems
9.12 Handlines
9.13 Commissioning tests
43 10 Liquefied flammable gases (LNG/LPG)
10.1 General
10.1.1 Liquefied Natural Gas (LNG)
10.1.2 Liquefied Petroleum Gas (LPG)
10.2 Controlled burn-off
10.3 Un-ignited spills
44 10.4 Fire detection
10.5 Foam properties
10.6 Foam proportioning system
10.7 Application techniques
45 11 Commissioning, testing, and periodic inspections
11.1 Instruction of operating personnel
11.2 Commissioning
11.2.1 General
11.2.2 Visual inspection
11.2.3 Pressure tests
11.2.4 Tests
11.2.5 Completion certificate
46 11.3 The periodic inspection and testing of foam systems
11.3.1 General
11.3.2 Inspections
11.3.2.1 Weekly inspections (by user/ trained personnel)
11.3.2.2 Monthly inspection (by user/ trained personnel)
47 11.3.2.3 Half-yearly inspections (foam system specialists)
11.3.2.4 Yearly inspections (foam system specialists)
48 11.3.2.5 Other inspections
11.4 Shut-down
11.5 Maintenance
11.6 Alterations

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BS EN 13565-2:2018
$189.07