IEC 61858 pdf download – Electrical insulation systems – Thermal evaluation of modifications to an established wire-wound EIS

IEC 61858 pdf download – Electrical insulation systems – Thermal evaluation of modifications to an established wire-wound EIS
1 scope
This International Standard lists the required test procedures for qualification of modificationsof an established electrical insulation system (EIS) with respect to its thermal classification.This standard is applicable to Els used in wire-wound electrotechnical devices. The testprocedures are comparative in that the performance of a candidate EIS is compared to that ofa reference EIS, which has proven service experience in accordance with IEC 60505 or hasbeen evaluated by one of the procedures given in the lEC 61857 series.
2Normative references
The following referenced documents are indispensable for the application of this document.For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
IEC 60085:2007,Electrical insulation – Thermal evaluation and designation
IEC 60172,Test procedure for the determination of the temperature index of enamelledwinding wires
IEC 60216-5，Electrical insulating materials – Thermal endurance properties – Part 5:Determination of relative thermal endurance index (RTE) of an insulating material
IEC 60317-3，Specifications for particular types of winding wires – Part 3: Polyesterenamelled round aluminium wire,class 155
IEC 60317-4，Specifications for particular types of winding wires – Part 4: Solderablepolyurethane enamelled round copper wire, class 130
IEC 60317-7，Specifications for particular types of winding wires – Part 7: Polyimideenamelled round copper wire, class 220
IEC 60317-8，Specifications for particular types of winding wires – Part 8: Polyesterimideenamelled round copper wire, class 180
IEC 60317-13，Specifications for particular types of winding wires – Part 13: Polyester orpolyesterimide overcoated with polyamide-imide enamelled round copper wire, class 200
IEC 60317-15,Specifications for particular types of winding wires – Part 15: Polyesterimideenameled round aluminium wire, class 180
IEC 60317-16，Specifications for particular types of winding wires – Part 16: Polyesterenamelled rectangular copper wire,class 155
IEC 60317-19，Specifications for particular types of winding wires – Part 19: Solderablepolyurethane enamelled round copper wire, overcoated with polyamide,class 130
IEC 60317-21，Specifications for particular types of winding wires – Part 21: Solderablepolyurethane enamelled round copper wire overcoated with polyamide,class 155
IEC 60317-22，Specifications for particular types of winding wires – Part 22: Polyester orpolyesterimide enamelled round copper wire overcoated with polyamide, class 180
IEC 60317-23，Specifications for particular types of winding wires – Part 23: Solderablepolyesterimide enamelled round copper wire,class 180
IEC 60317-25，Specifications for particular types of winding wires – Part 25: Polyester orpolyesterimide overcoated with polyamide-imide enamelled round aluminium wire, class 200
IEC 60317-29，Specifications for particular types of winding wires – Part 29: Polyester orpolyesterimide overcoated with polyamide-imide enamelled rectangular copper wire,class 200
IEC 60317-30，Specifications for particular types of winding wires – Part 30: Polyimideenamelled rectangular copper wire,class 220
lEC 60317-34，Specifications for particular types of winding wires – Part 34: Polyesterenamelled round copper wire,class 130L
IEC 60317-42,Specifications for particular types of winding wires – Part 42: Polyester-amide-imide enamelled round copper wire, class 200
IEC 60317-46,Specifications for particular types of winding wires – Part 46: Aromaticpolyimide enameiled round copper wire, class 240
IEC 60317-47,Specifications for particular types_of winding wires – Part 47: Aromaticpolyimide enamelled rectangular copper wire, class 240
IEC 60317-51，Specifications for particular types of winding wires – Part 51: Solderablepolyurethane enamelled round copper wire,class 180
IEC 60505,Evaluation and qualification of electrical insulation systems
IEC 61033,Test methods for the determination of bond strength of impregnating agents to anenameled wire substrate
IEC 61857(all parts)， Electrical insulation systems – Procedures for thermal evaluation
IEC 61857-1，Electrical insulation systems – Procedures for thermal evaluation – Part 1:General requirements – Low voltage
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
electrical insulation systemEIS
insulating structure containing one or more electrical insulating materials (EIM) together withassociated conductina parts emploved in an electrotechnical device
3.2
electrical insulating material
EIM
material with negligibly low electric conductivity, used to separate conducting parts at different electrical potentials
3.3
candidate EIS
EIS under evaluation to determine its service capability (thermal)
3.4
reference EIS
established EIS evaluated on the basis of either a known service experience record or a nown comparative functional evaluation
3.5
EIS assessed thermal endurance index
EIS ATE
numerical value of temperature in degrees Celsius for the reference EIS as derived from known service experience or a known comparative functional evaluation