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EXPLOSIVE ATMOSPHERES - PART 2: EQUIPMENT PROTECTION BY PRESSURIZED ENCLOSURE 'P'
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-01-2014
Publisher: National Standards Authority of Ireland
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.Only cited Standards give presumption of conformance to New Approach Directives/Regulations.Dates of withdrawal of national standards are available from NSAI.
National ForewordFOREWORDINTRODUCTION1 Scope2 Normative references3 Terms and definitions4 Protection levels5 Constructional requirements for pressurized enclosures6 Temperature limits7 Safety provisions and safety devices (except for static pressurization)8 Safety provisions and safety devices for static pressurization9 Supply of protective gas10 Pressurized equipment with an internal source of release11 Release conditions12 Design requirements for the containment system13 Protective gas and pressurizing techniques when there is an internal source of release14 Ignition-capable equipment15 Internal hot surfaces16 Type verification and tests17 Routine tests17 Routine tests18 Marking19 InstructionsAnnex A (normative) - Purging and dilution testsAnnex B (informative) - Examples of functional sequence diagramAnnex C (informative) - Examples of the changes in pressure in ducts and enclosuresAnnex D (informative) - Information to be provided to the userAnnex E (normative) - Classification of the type of release within enclosuresAnnex F (informative) - Examples for the use of the dilution area conceptAnnex G (normative) - Internal Cells and Batteries for Level of Protection 'pxb' and Level of Protection 'pyb'Annex H (normative) - Internal Cells and Batteries for Level of Protection 'pzc'BibliographyAnnex ZA (normative) - Normative references to international publications with their corresponding European publicationsAnnex ZZ (informative) - Coverage of Essential Requirements of EU DirectivesAnnex ZY (informative) - Significant changes between this European Standard and EN 60079-2:2007
Includes the specific requirements for the construction and testing of electrical apparatus with pressurized enclosures, of protection type 'p', intended for use in explosive gas atmospheres.
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