20/30403636 DC - BS EN 746-2. Industrial thermoprocessing equipment. Part 2. Safety requirements for combustion and fuel handling systems
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20/30403636 DC

BS EN 746-2. Industrial thermoprocessing equipment. Part 2. Safety requirements for combustion and fuel handling systems

Status : Current, Draft for public comment   Published : March 2020



This part of EN 746 specifies the safety requirements for combustion and fuel handling systems that are part of industrial furnaces and associated processing equipment (TPE).


The general safety requirements common to TPE are provided in prEN 746‑1:2020 (See introduction).

This part of EN 746 deals with significant hazards, hazardous situations and events relevant to combustion and fuel handling systems as listed in Annex A, when used as intended and under the conditions foreseen by the manufacturer.

This part of EN 746 covers:

— fuel pipework downstream of and including the manual isolating valve;

— combustion air supply (including oxygen and oxygen enriched combustion air) and flue gas system;

— burner(s), burner system and ignition device;

— functional requirements for safety related control system.

This part of EN 746 applies to any oxidation with air or other gases containing free oxygen of gaseous and liquid fuels or any combustion of them to release thermal energy in TPE.

For thermal or catalytic post combustion and waste incineration, this part of EN 746 applies only to auxiliary burners designed to start-up and/or support the process.

The pressure hazard of the piping and components covered by this part of EN 746 is within the maximum pressure/size relationship of category I as described in normative Annex E.

This part of EN 746 also gives the necessary requirements regarding information for use.

This part of EN 746 does not cover hazards from heating generated by electricity.

This part of EN 746 does not deal with the hazards created by the release of flammable substances from the products processed in the TPE.

This part of EN 746 is not applicable to combustion and fuel handling systems:

  • of gas welding and allied processes;

  • up-stream of the TPE manual isolating valve.

This part of EN 746 is not applicable to electrical cabling and power cabling upstream of the TPE control panel/protective system.

Standard Number20/30403636 DC
TitleBS EN 746-2. Industrial thermoprocessing equipment. Part 2. Safety requirements for combustion and fuel handling systems
StatusCurrent, Draft for public comment
Publication Date10 March 2020
Normative References(Required to achieve compliance to this standard)ISO 7005-2:1988, EN 14382:2019, ISO 13574:2015, ISO 7005-1:2011, ISO 8434-2:2007, EN 1854:2010, EN 62061:2005/corrigendum Feb. 2010, EN 298:2012, ISO 8434-3:2005, EN 161:2011+A3:2013, EN 88-2:2007, prEN 746-1, EN 125:2010+A1:2015, ISO 7-1:1994/Cor 1:2007, ISO 7005-3:1988, EN 334:2019, EN 60204-1:2006/corrigendum Feb. 2010, EN 88-1:2011+A1:2016, EN 331:2015, EN 1643:2014, EN 12067-2:2004, EN ISO 13849 (all parts), EN ISO 5817:2014, EN ISO 228-1:2003, EN 61508 (all parts), EN ISO 8434-1:2018, EN ISO 12100:2010, EN ISO 19879:2010, EN 61511 (all parts), EN ISO 5175-1:2017, EN ISO 23553-1:2014, prEN 746-11:2020, EN ISO 5175-2:2017
Informative References(Provided for Information)ISO 6976, EN 10241, EN 10255, EN ISO 3183:2012, EN 10242, EN 17082:2019, EN 1057:2006+A1:2010, EN 751-1:1996, EN 60730-2-5:2015, EN 60730-2-6:2016, EN 676:2003+A2:2008, ISO 23551-2:2018, ISO 23551-1:2012, EN 1797:2001, ISO 23552-1:2007, ISO 23551-3:2005, EN 267:2009+A1:2011, EN 751-2:1996, ISO 49:1994/COR 1:1997, EN 13480-2:2017
International RelationshipsprEN 746-2
Draft Expiry Date22 April 2020
DescriptorsIgnition systems (heat engineering), Heat engineering components, Heating equipment, Fuels, Industrial, Safety devices, Safety measures, Instructions for use, Marking, Equipment safety, Hazards, Classification systems, Occupational safety, Burners, Furnaces, Pipework systems, Handbooks, Production equipment
Title in FrenchEquipements thermiques industriels Partie 2: Prescription de sécurité concernant la combustion et la manutention des combustibles
Title in GermanIndustrielle Thermoprozessanlagen und dazugehörige Prozesskomponenten - Sicherheitsanforderungen Teil 2: Feuerungen und Brennstoffführungssysteme (ohne Feststoffe)
File Size1.373 MB
NotesWarning: this draft is not current beyond its expiry date for comments.

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