BS EN 62535-2009 绝缘液.检测用过和未用过的绝缘油中的潜在腐蚀性硫的试验方法

标准号：BS EN 62535-2009
中文标准名称：绝缘液.检测用过和未用过的绝缘油中的潜在腐蚀性硫的试验方法
英文标准名称：Insulating liquids - Test method for detection of potentially corrosive sulphur in used and unused insulating oil
标准类型：K15
发布日期：2009/3/31 12:00:00
实施日期：2009/3/31 12:00:00
中国标准分类号：K15
国际标准分类号：29.040.10
引用标准：IEC 60475;IEC 60554-3-1;ASTM D1275;ASTM D130;DIN 51353;EN 13601
适用范围：This International Standard specifies a test method for detection of potentially corrosivesulphur in used and unused mineral insulating oil.Most recent failures due to corrosive sulphur are related to the formation of copper sulphidedeposits in and on the surface of winding cellulosic paper.The test method uses a copper conductor, wrapped with one layer of paper, immersed in theoil and heated to evaluate the capability of the oil to yield copper sulphide and transfer it topaper layers.The growth of copper sulphide on bare copper may cause the presence of conductiveparticulates in the oil, which can act as nuclei for electrical discharge and may lead to a fault.Other test methods exist using a bare copper strip immersed in oil and heated to detect thecorrosive behaviour of oil against copper. ASTM D1275 Method B is also used for this testand a modified procedure using low oil volumes is included in Annex A.Tests with and without paper are considered as complementary and may lead to differentresults.