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BS EN 14373:2021

BS EN 14373:2021

$198.66

Explosion suppression systems

Published By Publication Date Number of Pages
BSI 2021 52
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This document describes the basic requirements for the design and application of explosion suppression systems. This document also specifies test methods for evaluating the effectiveness and the scaling up of explosion suppression systems against defined explosions. This document covers: – general requirements for explosion suppression system parts; – evaluating the effectiveness of an explosion suppression system; – evaluating the scale up of an explosion suppression system to larger than tested volumes; – development and evaluation of design tools for explosion suppression systems; – installation, operation and maintenance instructions for an explosion suppression system. This document is applicable only to explosion suppression systems intended for the protection of closed, or essentially closed, enclosures in which an explosion could result as a consequence of ignition of an explosible mixture, e.g. dust-air, gas(vapour)-air, dust-gas(vapour)-air and mist-air. This document is not applicable for explosions of materials listed below, or for mixtures containing some of those materials: – unstable materials that are liable to dissociate; – explosive materials; – pyrotechnic materials; – pyrophoric materials.

PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Symbols and abbreviations (EN 14373)
13 5 Explosion suppression
5.1 Design
14 5.2 General function
15 5.3 Requirements for explosion suppression systems
19 6 Environmental aspects
6.1 General
6.2 Suppressant
6.3 Actuators and other components
7 Experimental testing of the efficacy of an explosion suppression system
7.1 Information to be submitted prior to testing
7.1.1 General
20 7.1.2 Intended use
7.1.3 Information on the parts of the suppression system
21 7.1.4 Calculation model
7.2 Testing
7.2.1 General requirements for test setup
7.2.2 Test program for non-metallic dusts
7.2.2.1 Tests for single vessel volume protection
23 7.2.2.2 Extrapolation to other vessel volumes than tested
25 7.2.3 Test program for metal dust
7.2.4 Test program for gas
7.2.4.1 General
7.2.4.2 Initially quiescent gas mixtures
7.2.4.3 Initial turbulence or presence of turbulence inducing elements
26 7.2.5 Test program for hybrid mixtures of non-metallic dust and gas
7.2.6 Test program for mist-air mixtures
7.3 Parameters to be measured
27 7.4 Test report
28 8 Instructions
8.1 General
8.2 Installation of cables
29 8.3 Assembling
8.3.1 General
8.3.2 Process information requirements
8.4 Commissioning
8.4.1 General
8.4.2 Instructions for hand-over
8.4.3 Commissioning report
30 8.5 Safety
8.6 Maintenance
9 Marking and packaging
9.1 General
9.2 Parts of the explosion suppression system
32 9.3 Explosion suppression system
33 Annex A (informative)Development of an explosion suppression calculation model
A.1 General
A.2 Extinction
34 A.3 Functional tests for model development
35 A.4 Model validation
36 Annex B (informative)Applications
B.1 General
B.2 Hazard definition
37 B.3 Typical process equipment
B.3.1 Spray dryers
B.3.1.1 Introduction
B.3.1.2 Definition of elements
38 B.3.1.3 Dust concentration
39 B.3.1.4 Protection concept
B.3.1.5 Isolation
B.3.1.6 Advanced inerting
B.3.1.7 Flame Duration
B.3.1.8 Interlocking
B.3.2 Clean volumes
B.3.3 Elevators
40 B.3.4 Elongated enclosures
B.3.5 Pipes
B.3.6 Occupied spaces
42 Annex C (informative)Extrapolation to larger volumes
46 Annex D (informative)Significant changes between this European Standard and EN 14373:2005
48 Annex ZA (informative)Relationship between this European Standard and the essential requirements of EU Directive 2014/34/EU aimed to be covered

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BS EN 14373:2021
$198.66