BS EN 60216-5:2008 - Electrical insulating materials. Thermal endurance properties. Determination of relative thermal endurance index (RTE) of an insulating material

BS EN 60216-5:2008

Electrical insulating materials. Thermal endurance properties. Determination of relative thermal endurance index (RTE) of an insulating material

Status : Current, Work in hand   Published : August 2008

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IEC 60216-5 specifies the experimental and calculation procedures to be used for deriving the relative thermal endurance index of a material from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2. The calculation procedures are supplementary to those of IEC 60216-3. Guidance is also given for assessment of thermal ageing after a single fixed time and temperature, without extrapolation. The experimental data may in principle be obtained using destructive, non-destructive or proof tests, although destructive tests have been much more extensively employed. Data obtained from non-destructive or proof tests may be "censored", in that measurement of times taken to reach the endpoint may have been terminated at some point after the median time but before all specimens have reached end-point (see IEC 60216-1). Guidance is given for preliminary assignment of a thermal class for an insulating material, based upon the thermal ageing performance. The calculation procedures of this standard also apply to the determination of the thermal class of an electrical insulation system when the thermal stress is the prevailing ageing factor. This third edition clarifies and corrects a few items and adds an Annex D which provides criteria for the selection of the reference (or reference EIM). The third edition provides instructions for deriving a provisional estimate of the temperature up to which a material may give satisfactory performance in an application (by comparative thermal ageing with a material of known performance). The contents of the corrigendum of December 2009 have been included in this copy.


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Standard NumberBS EN 60216-5:2008
TitleElectrical insulating materials. Thermal endurance properties. Determination of relative thermal endurance index (RTE) of an insulating material
StatusCurrent, Work in hand
Publication Date29 August 2008
Normative References(Required to achieve compliance to this standard)IEC 60216-3:2006, IEC 60216-1:2001, IEC 60216-2, EN 60216-1:2001, EN 60216-2:2005, EN 60216-3:2006
Informative References(Provided for Information)IEC 60085, EN 60085:2008
ReplacesBS EN 60216-5:2003
International RelationshipsEN 61851-1:2001,EN 60216-5:2008,IEC 60216-5:2008
Draft Superseded By06/30159335 DC
DescriptorsElectrical insulating materials, Thermal testing, Statistical methods of analysis, Endurance testing, Heat ageing tests, Thermal properties of materials, Mathematical calculations
ICS19.020
29.020
29.035.01
Title in FrenchMatériaux isolants électriques. Propriétés d'endurance thermique. Détermination de lindice dendurance thermique relatif (RTE) d'un matériau isolant
Title in GermanElektroisolierstoffe. Eigenschaften hinsichtlich des thermischen. Langzeitverhaltens. Bestimmung des relativen thermischen Lebensdauer-Indexes (RTE) von Elektroisolierstoffen
CommitteeGEL/112
ISBN978 0 580 58072 7
PublisherBSI
FormatA4
DeliveryYes
Pages26
File Size715 KB
Price£182.00


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