BS EN 60426:2007 - Electrical insulating materials. Determination of electrolytic corrosion caused by insuating materials. Test methods

BS EN 60426:2007

Electrical insulating materials. Determination of electrolytic corrosion caused by insuating materials. Test methods

Status : Current   Published : March 2007

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HARDCOPY



IEC 60426:2007 determines the ability of insulating materials to produce electrolytic corrosion on metals being in contact with them under the influence of electric stress, high humidity and elevated temperature. The effect of electrolytic corrosion is assessed in one test by using consecutively two methods:


- visual semi-quantitative method consisting in comparing visually the corrosion appearing on the anode and cathode metal strips, with those given in the reference figures. This method consists of the direct visual assessment of the degree of corrosion of two copper strips, acting as anode and cathode respectively, placed in contact with the tested insulating material under a d.c. potential difference at specified environmental conditions. The degree of corrosion is assessed by visually comparing the corrosion marks on the anode and cathode metal strips with those shown in the reference figures;


- quantitative method, which involves the tensile strength measurement, carried out on the same anode and cathode metal strips after visual inspection.


An additional quantitative test method for determining electrolytic corrosion, which involves tensile strength measurement of copper wire, is described in the informative Annex C.




Standard NumberBS EN 60426:2007
TitleElectrical insulating materials. Determination of electrolytic corrosion caused by insuating materials. Test methods
StatusCurrent
Publication Date30 March 2007
Normative References(Required to achieve compliance to this standard)IEC 60454-2, EN 60068-3-4:2002, IEC 60068-3-4:2001
Informative References(Provided for Information)No other standards are informatively referenced
ReplacesBS 5735:1979, IEC 60426:1973
International RelationshipsEN 60426:2007,IEC 60426:2007
Draft Superseded By05/30136157 DC
DescriptorsElectrochemical corrosion, Tensile testing, Corrosion tests, Copper corrosion tests, Test specimens, Solid electrical insulating materials, Testing conditions, Electrical insulation, Electrical insulating materials, Visual inspection (testing)
ICS17.220.99
29.035.01
Title in FrenchMatériaux isolants électriques. Détermination de la corrosion électrolytique en présence de matériaux isolants. Méthodes d'essais
Title in GermanElektroisolierstoffe. Prüfungen zur Bestimmung der elektrolytischen Korrosionswirkung von Isoliermaterialien
CommitteeGEL/112
ISBN978 0 580 50417 4
PublisherBSI
FormatA4
DeliveryYes
Pages30
File Size665 KB
Price£182.00


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