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eLibrary > BS EN IEC 62770:2024 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment >

BS EN IEC 62770:2024 Fluids for electrotechnical applications. Unused natural esters for transformers and similar electrical equipment, 2024

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Annex ZA (normative)Normative references to international publicationswith their corresponding European publications [Go to Page]
English [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms [Go to Page]
3.1 Terms and definitions
3.2 Abbreviated terms
4 Properties, their significance and test methods [Go to Page]
4.1 General
4.2 Physical properties [Go to Page]
4.2.1 Appearance and colour
Table 1 – Abbreviated terms [Go to Page]
[Go to Page]
4.2.2 Viscosity
4.2.3 Pour point
4.2.4 Water content
4.2.5 Density
4.3 Electrical properties [Go to Page]
4.3.1 Breakdown voltage
4.3.2 Dielectric dissipation factor (DDF)
4.3.3 Relative permittivity (dielectric constant)
4.4 Chemical properties [Go to Page]
4.4.1 Acidity
4.4.2 Corrosive sulfur
4.4.3 Additive content
4.4.4 Furfural content
4.5 Performance [Go to Page]
4.5.1 General
4.5.2 Oxidation stability
4.6 Health, safety and environmental (HSE) properties [Go to Page]
4.6.1 Fire point and flash point
4.6.2 Polychlorinated biphenyls (PCBs)
4.6.3 Biodegradation
4.6.4 Aquatic toxicity
5 Classification, identification, general delivery requirements, and sampling [Go to Page]
5.1 Classification
5.2 Identification and general delivery requirements
5.3 Sampling
Table 2 – General specifications
Annex A (normative) Summary of the test method for evaluating oxidation stability of unused natural esters [Go to Page]
A.1 General
A.2 Test conditions
A.3 Precision
A.4 Relative repeatability (r)
A.5 Relative reproducibility (R)
Table A.1 – Relative repeatability and relative reproducibility obtained for different parameters during RRT
Bibliography [Go to Page]

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