EN 13463-8:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Non-electrical equipment for potentially explosive atmospheres - Part 8: Protection by liquid immersion 'k'Appareils non électriques destinés a etre utilisés en atmospheres explosibles - Partie 8: Protection par immersion dans un liquide 'k'Nicht-elektrische Geräte für den Einsatz in explosionsgefährdeten Bereichen - Teil 8: Schutz durch Flüssigkeitskapselung 'k'13.230Varstvo pred eksplozijoExplosion protectionICS:SIST EN 13463-8:2003enTa slovenski standard je istoveten z:EN 13463-8:200301-december-2003SIST EN 13463-8:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13463-8September 2003ICS 13.230English versionNon-electrical equipment for potentially explosive atmospheres -Part 8: Protection by liquid immersion 'k'Appareils non électriques destinés à être utilisés enatmosphères explosibles - Partie 8: Protection parimmersion dans un liquide 'k'Nicht-elektrische Geräte für den Einsatz inexplosionsgefährdeten Bereichen - Teil 8: Schutz durchFlüssigkeitskapselung 'k'This European Standard was approved by CEN on 1 August 2003.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13463-8:2003 E

Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.10Bibliography.15

movingmechanisms immersed below the lowest allowable level of the flammable liquid being processed (e.g.petroleum product dispensers),c) hydraulic pumps and motors having their internal rotating parts continuously immersed in the flowing hydraulicfluid used to transmit the hydrostatic or hydrokinetic energy,d) oil filled gearboxes, having their gear wheels partially immersed, but continuously coated by a viscous film oflubricating oil. In this example the protective oil coating may be supplied by natural splashing of the wheels asthey rotate in the oil, or by directing a continuously flowing stream of oil directly onto them from an oil pump inthe gearbox sump,e) fluid couplings, torque converters, connected for example, between the output shaft of a driving motor and theinput shaft of fully loaded machine, to allow it to be started gradually (‘soft starting’).In all of the above, ignition protection is achieved by the fact that protective liquid prevents the surroundingexplosive atmosphere from coming into contact with the ignition source(s) by continuously coating, and/orlubricating and cooling the moving parts.A similar type of ignition protection, known as oil immersion ”o”, has been used for many years for electricalequipment, where, in addition to the above, the liquid also acts as an electrical insulating medium. It is for this latterreason that this standard cannot be applied to electrical equipment, because it allows the use of liquids thatconduct electricity.
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