Insights Important Guidelines for Managing and Storing Cable Drums. Understanding Real and Fake Cables. When are Armoured Cables Used? Comparing PVC and XLPE: A Look at Two Common Cable Insulations. How long do cables typically last? Understanding the Importance of Insulation Resistance (IR) Testing for Your Cables. Conductor Resistance: A simple yet essential test for your cables. What are the various classes of cable conductors?