IEC 60426-2007 电绝缘材料.测定绝缘材料引起的电解腐蚀.试验方法

标准号：IEC 60426-2007
中文标准名称：电绝缘材料.测定绝缘材料引起的电解腐蚀.试验方法
英文标准名称：Electrical insulating materials - Determination of electrolytic corrosion caused by insulating materials - Test methods
标准类型：K15
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：K15
国际标准分类号：29.035.01
引用标准：IEC 60068-3-4-2001;IEC 60454-2
适用范围：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.