BS EN 60626-2 provides the test methods for combined flexible materials for electrical insulation. Some properties and relevant test methods, according to the performance requirements of IEC 60626-3, were confirmed.
Other test methods are described as a supplement of guidance in BS EN 60626-2 for further specification that could be agreed upon between customer and supplier to meet specific needs of the end-use.
BS EN 60626-2 deals with test methods of combined flexible materials consisting of two or more different insulating materials laminated together as described in IEC 606261. The components of flexible combined materials are polymer film and fibrous sheet material. This standard does not include materials based on mica paper, as primary component, covered by IEC 60371, but mica paper may be used as complementary material.
BS EN 60626-2 on electrical insulation materials test is useful for:
BS EN 60626-2 provides best practice guidelines for testing various characteristics of combines flexible electrical insulation materials, such as:
BS EN 60626-2 can help in better communication between supplier and the customer, to be able to select appropriate material for further processes in manufacturing.
BS EN 60626-2:2009 supersedes EN 60626-2:1995.
The main changes from EN 60626-2:1995 are as follows:
Some tests such as for edge tearing and stiffness, not used and not listed in the requirements of Part 3, they were deleted.
EN 60626-2:2009
EN 61643-11:2002/A11:2007
IEC 60626-2:2009