DIN EN ISO 13577-2:2024-09

This standard includes safety requirements. This standard contains specifications which give detail to the essential requirements set out in Annex I of the "Machinery Directive", Directive 2006/42/EC, which apply to machines that are first placed on the market within the EEA. This standard serves to facilitate proof of compliance with the essential requirements of this directive. Once this standard is cited in the Official Journal of the European Union, it is deemed a "harmonized" standard, and thus a manufacturer applying this standard may assume compliance with the requirements of theMachinery Directive ("presumption of conformity"). This document specifies the safety requirements for combustion and fuel handling systems that are part of industrial furnaces and associated processing equipment (TPE), including single and multiple burner systems in thermoprocessing equipment and machines. The general safety requirements common to TPE are provided in ISO 13577-1:2016. ISO 13577-1:2016, Annex B also includes a list of processes for which industrial furnaces and heating systems covered by the ISO 13577 series are used. This document 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 for use as described in the instruction handbook. This document 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 document applies to any oxidation of gaseous and liquid fuels with air or other gases containing free oxygen to release thermal energy in TPE. Annex B includes examples of gaseous and liquid fuels. For thermal or catalytic post combustion and waste incineration, this document 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 document is within the maximum pressure/size relationship of category I as specified in Annex C. This document also gives the necessary requirements regarding information for use. This document does not cover hazards from heating generated by electricity. This document does not deal with the hazards created by the release of flammable substances from the products processed in the TPE. This document is not applicable to combustion and fuel handling systems: - of gas welding and allied processes; - up-stream of the TPE manual isolating valve. This document is not applicable to industrial furnaces and associated processing equipment (TPE), including single and multiple burner systems in thermoprocessing equipment and machines manufactured before the date of its publication. This document is not applicable to blast furnaces, converters (in steel plants), boilers, fired heaters (including reformer furnaces) in the petrochemical and chemical industries. This document is not applicable to electrical cabling and power cabling upstream of the TPE control panel/protective system. This document (EN ISO 13577-2:2023) has been prepared by Technical Committee ISO/TC 244 "Industrial furnaces and associated processing equipment" in collaboration with Technical Committee CEN/TC 186 "Industrial thermoprocessing - Safety", the secretariat of which is held by DIN. This standard differs from DIN EN 746-2:2011-02 as follows: - the document structure has been revised, and the requirements for the different fuels (for example, fuel pipework, combustion air and fuel/air ratio, burners, automatic burner control systems) have been consolidated; - the requirements for testing the fuel pipework after construction have been improved and specified; - requirements for gas pressure booster systems have been added; - a separate clause for liquid fuel atomization has been inserted; - the requirements for solid fuels have been removed; - the requirements for electrical and electronic equipment (DIN EN 746-2:2011, 5.7) have been removed. These are provided in DIN EN ISO 13577-4, and this document contains the corresponding references; - an additional informative annex listing relevant product standards for components in the different regions has been included. National interests in the preparation are represented by Committee Working Committee NA 060-03-02 AA "Combustion and fuel handling systems" of Section "Industrial thermoprocessing" at DIN Standards Committee Mechanical Engineering (NAM). Representatives of manufacturers and users of "machines", and of the employers' liability insurance associations contributed to this standard.