EN 50353:2001
(Main)Insulating oil - Determination of fibre contamination by the counting method using a microscope
Insulating oil - Determination of fibre contamination by the counting method using a microscope
This standard describes the method of determining fibre contamination of mineral insulating oil used in electrotechnical equipment by counting the number of fibres on the surface of a membrane filter
Isolieröl - Bestimmung der Faserverunreinigungen mittels eines Zählverfahrens mit einem Mikroskop
Huiles isolantes - Détermination de la contamination par fibres par la méthode du comptage avec utilisation d'un microscope
Insulating oil - Determination of fibre contamination by the counting method using a microscope
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Insulating oil - Determination of fibre contamination by the counting method using a microscopeIsolieröl - Bestimmung der Faserverunreinigungen mittels eines Zählverfahrens mit einem MikroskopHuiles isolantes - Détermination de la contamination par fibres par la méthode du comptage avec utilisation d'un microscopeInsulating oil - Determination of fibre contamination by the counting method using a microscope29.040.10Izolacijska oljaInsulating oilsICS:Ta slovenski standard je istoveten z:EN 50353:2001SIST EN 50353:2002en01-maj-2002SIST EN 50353:2002SLOVENSKI
STANDARD
SIST EN 50353:2002
EUROPEAN STANDARDEN 50353NORME EUROPÉENNEEUROPÄISCHE NORMSeptember 2001CENELECEuropean Committee for Electrotechnical StandardizationComité Européen de Normalisation ElectrotechniqueEuropäisches Komitee für Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels© 2001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 50353:2001 EICS 29.040.20English versionInsulating oil -Determination of fibre contamination bythe counting method using a microscopeHuiles isolantes -Détermination de la contaminationpar fibres par la méthode du comptageavec utilisation d'un microscopeIsolieröl -Bestimmung der Faserverunreinigungenmittels eines Zählverfahrens mit einemMikroskopThis European Standard was approved by CENELEC on 2000-12-01. CENELEC members are bound tocomply 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 national standards may be obtained onapplication to the Central Secretariat or to any CENELEC member.This European Standard exists in three official versions (English, French, German). A version in any otherlanguage made by translation under the responsibility of a CENELEC member into its own language andnotified to the Central Secretariat has the same status as the official versions.CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain, Sweden, Switzerland and United Kingdom.SIST EN 50353:2002
EN 50353:2001- 2 -ContentsPageForeword.3Introduction.41 Scope.42 Normative references.43 Terms and definitions.44 Principle.55 Reagents.56 Apparatus.57 Cleaning procedure.68 Sampling.79 Filtration procedure.710 Microscope calibration.811 Fibre counting and sizing procedure.912 Calculation and expression of results.1013 Precision.1014 Test report.10Figure 1 - Schematic representation of a suitable filtration apparatus.11Annex A (normative)
Method for low fibre concentrations.12A.1 Reagents.12A.2 Apparatus.12A.3 Initial set-up and cleaning.
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