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Reference IEC 60970 ed2.0 withdrawn corrigendum

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Title Versión Oficial en Español - Líquidos aislantes. Métodos para la determinación del número y tamaño de partículas
Publication date 2007-07-16
Format, price
(Swiss francs)
and language
100.- 37 pages
100.- 211 Kb
 
Abstract Describes the sampling procedures and methods for the determination of particle concentration and size distribution. Three methods are specified. One uses an automatic particle size analyser, working on the light interruption principle. The other two use an optical microscope, in either the transmitted light or incident light mode, to count particles collected on the surface of a membrane filter. The optical microscope methods are described in ISO 4407. All three methods are applicable to both used and unused insulating liquids. Annex A contains an alternative sampling procedure using a syringe and Annex B reports a reference for the calibration of automatic particle counters. The significant technical changes with respect to the previous edition are as follows: - new calibration procedures for automated laser particle; - three figures contamination code; - new procedure of sample pre-treatment when automated laser counter method are used.
Technical Committee 10 - Fluids for electrotechnical applications  RSS
ICS Codes
17.220.99 Other standards related to electricity and magnetism

29.040.10 Insulating oils
 
Replaced by
Stability date 2016
 
Work in progress
ProjectStage codeForecast publication date
No project under development--


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