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EN 62770:2014

Current
Current

The latest, up-to-date edition.

Fluids for electrotechnical applications - Unused natural esters for transformers and similar electrical equipment
Published date

18-04-2014

IEC 62770:2013 describes specifications and test methods for unused natural esters in transformers and similar oil-impregnated electrical equipment in which a liquid is required as an insulating and heat transfer medium. Natural esters with additives are within the scope of this standard. Because of their different chemical composition, natural esters differ from insulating mineral oils and other insulating fluids that have high fire points, such as synthetic esters or silicone fluids. Natural, ester-derived insulating fluids with low viscosity have been introduced but are not covered by this standard. Pertinent properties of such fluids are given in Annex B. This standard is applicable only to unused natural esters. Reclaimed natural esters and natural esters blended with non-natural esters fluids are beyond the scope of this standard.

Committee
CLC/SR 10
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current

Standards Relationship
IEC 62770:2013 Identical
NF EN 62770 : 2014 Identical
NBN EN 62770 : 2014 Identical
NEN EN IEC 62770 : 2014 Identical
I.S. EN 62770:2014 Identical
PN EN 62770 : 2014 Identical
DIN EN 62770 : 2014 Identical
VDE 0370-70 : 2014 Identical
SN EN 62770:2014 Identical
UNE-EN 62770:2014 Identical
BS EN 62770:2014 Identical
CEI EN 62770 : 2014 Identical

I.S. EN 60079-6:2015 EXPLOSIVE ATMOSPHERES - PART 6: EQUIPMENT PROTECTION BY LIQUID IMMERSION 'O'
BS EN 60079-6:2007 Explosive atmospheres Equipment protected by oil immersion \'o\'
EN 60079-6:2015 Explosive atmospheres - Part 6: Equipment protection by liquid immersion "o"

ISO 3016:1994 Petroleum products Determination of pour point
ISO 2719:2016 Determination of flash point Pensky-Martens closed cup method
EN 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
IEC 61125:1992 Unused hydrocarbon based insulating liquids - Test methods for evaluating the oxidation stability
ISO 3675:1998 Crude petroleum and liquid petroleum products Laboratory determination of density Hydrometer method
IEC 61039:2008 Classification of insulating liquids
IEC 60422:2013 Mineral insulating oils in electrical equipment - Supervision and maintenance guidance
IEC 60156:1995 Insulating liquids - Determination of the breakdown voltage at power frequency - Test method
IEC 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
EN 61125:1993/A1:2004 UNUSED HYDROCARBON-BASED INSULATING LIQUIDS - TEST METHODS FOR EVALUATING THE OXIDATION STABILITY
EN 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
IEC 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
IEC 62535:2008 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
IEC 60475:2011 Method of sampling insulating liquids
EN 61100:1992 Classification of insulating liquids according to fire point and net calorific value
IEC 61100:1992 Classification of insulating liquids according to fire-point and net calorific value
EN 61620:1999 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
IEC 61099:2010 Insulating liquids - Specifications for unused synthetic organic esters for electrical purposes
IEC 61868:1998 Mineral insulating oils - Determination of kinematic viscosity at very low temperatures
EN 61198:1994 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
EN 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
EN 62535:2009 Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
ASTM D 1275 : 2015 Standard Test Method for Corrosive Sulfur in Electrical Insulating Liquids
EN 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
ISO 12185:1996 Crude petroleum and petroleum products — Determination of density — Oscillating U-tube method
IEC 60050-421:1990 International Electrotechnical Vocabulary (IEV) - Part 421: Power transformers and reactors
EN 60296:2012 Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
EN 62021-3:2014 Insulating liquids - Determination of acidity - Part 3: Test methods for non mineral insulating oils
IEC 62697-1:2012 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids - Part 1: Test method for quantitative determination of dibenzyldisulfide (DBDS)
EN 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
EN 60076-14:2013 Power transformers - Part 14: Liquid-immersed power transformers using high-temperature insulation materials
IEC 60666:2010 Detection and determination of specified additives in mineral insulating oils
IEC 61620:1998 Insulating liquids - Determination of the dielectric dissipation factor by measurement of the conductance and capacitance - Test method
IEC 60814:1997 Insulating liquids - Oil-impregnated paper and pressboard - Determination of water by automatic coulometric Karl Fischer titration
IEC 60247:2004 Insulating liquids - Measurement of relative permittivity, dielectric dissipation factor (tan d) and d.c. resistivity
IEC 61619:1997 Insulating liquids - Contamination by polychlorinated biphenyls (PCBs) - Method of determination by capillary column gas chromatography
IEC 61198:1993 Mineral insulating oils - Methods for the determination of 2-furfural and related compounds
IEEE C57.147-2008 IEEE Guide for Acceptance and Maintenance of Natural Ester Fluids in Transformers
EN 60475 : 2011 Method of sampling insulating liquids
IEC 62021-3:2014 Insulating liquids - Determination of acidity - Part 3: Test methods for non-mineral insulating oils
EN 60666 : 2010 DETECTION AND DETERMINATION OF SPECIFIED ADDITIVES IN MINERAL INSULATING OILS

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