IEC 60296:2003

IEC 60296:2003

November 2003
International standard Cancelled

Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Covers specifications and test methods for unused mineral insulating oils. It applies to oil delivered to the agreed point and time of delivery, intended for use in transformers, switchgear and similar electrical equipment in which oil is required as an insulant and for heat transfer. These oils are obtained by distillation and refining of crude petroleum. Oils with and without additives are both within the scope of this standard.This standard is applicable only to unused mineral insulating oils. Reclaimed oils are beyond the scope of this standard.This standard does not apply to mineral oils used as impregnants in cables or capacitors.NOTE Mineral insulating oils complying with the requirements of this standard, of the same class and containing no additives (see 3.4), are considered to be compatible with one another and can be mixed in any proportion. This does not apply to oils containing additives. Where the user wishes to mix such oils, a check is recommended to be made to ensure that the mixture meets the requirements of this standard.Main changes with regard to previous edition include: the three classes of previous edition have been replaced by only two: transformer oil and low temperature switchgear oil, but a new concept, the lowest cold start energizing temperature, has been included; new properties have been added (i.e. charging tendency); values for properties have been revised.

Main informations

Collections

International IEC standards

Publication date

November 2003

Number of pages

31 p.

Reference

IEC 60296:2003

Print number

3
Sumary
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

Covers specifications and test methods for unused mineral insulating oils. It applies to oil delivered to the agreed point and time of delivery, intended for use in transformers, switchgear and similar electrical equipment in which oil is required as an insulant and for heat transfer. These oils are obtained by distillation and refining of crude petroleum. Oils with and without additives are both within the scope of this standard. This standard is applicable only to unused mineral insulating oils. Reclaimed oils are beyond the scope of this standard. This standard does not apply to mineral oils used as impregnants in cables or capacitors. NOTE Mineral insulating oils complying with the requirements of this standard, of the same class and containing no additives (see 3.4), are considered to be compatible with one another and can be mixed in any proportion. This does not apply to oils containing additives. Where the user wishes to mix such oils, a check is recommended to be made to ensure that the mixture meets the requirements of this standard. Main changes with regard to previous edition include: the three classes of previous edition have been replaced by only two: transformer oil and low temperature switchgear oil, but a new concept, the lowest cold start energizing temperature, has been included; new properties have been added (i.e. charging tendency); values for properties have been revised.
Replaced standards (2)
International standard Cancelled
Amendment 1 - Specification for unused mineral insulating oils for transformers and switchgear

IEC 60296:1982
January 1982
International standard Cancelled
Specification for unused mineral insulating oils for transformers and switchgear

Covers specifications and test methods for unused mineral insulating oils, intended for use in transformers, switchgear and similar electrical equipment. Oils with and without additives are within the scope.

Standard replaced by (1)
IEC 60296:2012
February 2012
International standard Cancelled
Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear

IEC 60296:2012 is now available as IEC Standards+ 60296:2012 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60296:2012 is applicable to specifications and test methods for unused mineral insulating oils. It applies to oil intended for use in transformers, switchgear and similar electrical equipment in which oil is required for insulation and heat transfer. This edition includes the following significant technical changes with respect to the previous edition: - specifications for corrosive sulphur compounds that can lead to copper sulphide deposition in transformers (in non-passivated and passivated oils); - definitions of additives in oil; and - re-insertion of a missing note on oxidation.

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