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eLibrary > BS EN 17942:2024 Welding and allied processes. Gas welding equipment. Safety requirements for thermoprocess equipment with open firing oxy-fuel gas welding equipment >

BS EN 17942:2024 Welding and allied processes. Gas welding equipment. Safety requirements for thermoprocess equipment with open firing oxy-fuel gas welding equipment, 2024

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BS EN 17942:2024 Welding and allied processes. Gas welding equipment. Safety requirements for thermoprocess equipment with open firing oxy-fuel gas welding equipment, 2024

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1 Scope
2 Normative references
3 Terms and definitions
4 Safety requirements, measures and ascertaining compliance [Go to Page]
4.1 General
4.2 Gases [Go to Page]
4.2.1 General
4.2.2 Gases in accordance with EN 437:2021
4.2.3 Acetylene [Go to Page]
4.2.3.1 General
4.2.3.2 Suitability for use of acetylene
4.2.3.3 Sealing materials for acetylene distribution systems
4.2.3.4 Pipe systems
4.2.3.5 Equipment parts
4.2.3.6 Safety valve
4.2.4 Hydrogen [Go to Page]
4.2.4.1 General
4.2.4.2 Suitability for use of hydrogen
4.2.4.3 Tightness testing of pipe systems for hydrogen
4.2.5 Oxygen or oxygen-enriched combustion air [Go to Page]
4.2.5.1 General
4.2.5.2 Suitability for use of oxygen
4.2.5.3 Sealing materials for oxygen distribution systems
4.2.5.4 Pipe systems
4.2.5.5 Equipment parts
4.3 Gas distribution system [Go to Page]
4.3.1 General
4.3.2 Connections
4.3.3 Interrupted lines
4.3.4 Galvanic elements
4.3.5 Gas warning devices – Stationary gas detector
4.3.6 Hoses and couplings
4.3.7 Labelling
4.3.8 Inspection and testing [Go to Page]
4.3.8.1 General
4.3.8.2 Strength test
4.3.8.3 Gas tightness test
4.3.9 Condensate drains
4.3.10 Purge points
4.3.11 Safety devices to prevent gas back flow and flashback
4.3.12 Pressure fluctuations
4.3.13 Bypass
4.3.14 Disconnection of prescribed safety devices
4.3.15 Mandatory safety devices [Go to Page]
4.3.15.1 Manual isolating valve
4.3.15.2 Automatic shut-off valve
4.3.16 Industrial thermo-processing equipment
4.3.17 Valve monitoring system
4.3.18 Gas pressure regulator
4.3.19 Pressure and flow monitors [Go to Page]
4.3.19.1 Pressure monitors for fuel gas, oxygen and compressed air
4.3.19.2 Flow monitors in the cooling circuit
4.3.20 Filters/strainers
4.3.21 Exhaust gas system
4.3.22 Ignition system
4.3.23 Individual manual shut-off valves for gas welding equipment
4.3.24 Supply of pre-mixed fuel gas/air mixtures to the gas welding equipment
4.3.25 Gas welding equipment [Go to Page]
4.3.25.1 General requirements
4.3.25.2 Gas welding equipment as a burner
4.3.25.3 Gas welding equipment as an ignition burner
4.3.26 Startup and ignition [Go to Page]
4.3.26.1 Startup
4.3.26.2 Starting fuel gas quantity
4.3.26.3 Ignition
4.3.27 Safety time [Go to Page]
4.3.27.1 General
4.3.27.2 Maximum values for safety times for gas welding equipment
4.3.28 Flame failure [Go to Page]
4.3.28.1 Flame failure during startup
4.3.28.2 Flame failure during operation
4.3.29 Burner power control unit
4.3.30 Flame monitoring [Go to Page]
4.3.30.1 Operator supervision
4.3.30.2 Automatic burner control system
5 Requirements to the design of electrical and electronic equipment for control and protective systems
6 Checking of safety requirements and/or measures
7 User information [Go to Page]
7.1 Labelling
7.2 Operating instructions
7.3 Description of the IThE
7.4 Checking procedure
7.5 Commissioning
7.6 Shutdown procedure
7.7 Maintenance procedure
7.8 Documentation
Annex A (informative)List of hazards
Annex B (informative)Typical examples of industrial thermoprocessing equipment, gas welding equipment [Go to Page]
B.1 Classification
Annex C (informative)Typical examples of piping diagrams
Annex ZA (informative)Relationship between this European Standard and the essential requirements of EU Directive 2006/42/EC aimed to be covered [Go to Page]

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BS EN 17942:2024 Welding and allied processes. Gas welding equipment. Safety requirements for thermoprocess equipment with open firing oxy-fuel gas welding equipment, 2024

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please select your company type below: