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</html><description>As well as being an efficient coolant for use in transformers, switchgear and other electrical apparatus, oils are used as part of the electrical insulation between internal live parts. It is critical to regularly test the electrical properties of the oil as they can change with degradation due to oxidation, acids, sludge, gas and water [&hellip;]</description><thumbnail_url>https://blog.uk.tdk-lambda.com/uk/files/2013/05/PXF60-500-125.jpg</thumbnail_url></oembed>
