SIST EN 60426:2007

Oznaka standarda: SIST EN 60426:2007
Koda projekta: 17181
Organizacija: SIST
Naslov (angleški): Electrical insulating materials - Determination of electrolytic corrosion caused by insulating materials - Test methods
Naslov (slovenski): Električni izolacijski materiali - Ugotavljanje elektrolitske korozije, ki jo povzročajo izolacijski materiali – Preskuševalne metode (IEC 60426:2007)
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Tehnični odbor: IZO - Izolanti - trasformiran v TC IZS
ICS: 17.220.99 29.035.01
Status: Objavljen
Objavljen: 01-dec-2007
Refer. št. objave: Sporočila 2007-12
Referenčna oznaka: EN 60426:2007
Področje projekta (angleško): This standard 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.

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