Blog
Digital Insulation Tester: The Complete UK Guide
Digital insulation tester guide for UK motor repair workshops: what the accuracy and range figures really mean, how a £69 backup meter compares with a premium brand, and when to step up to a PI/DAR set.
Electrical Insulation Tester: A UK Beginner's Guide
Electrical insulation tester guide for UK apprentices: what it measures, how to choose between 250V, 500V and 1000V, and why it complements rather than replaces a multifunction tester.
Megohm Meter: A UK Guide for HVAC Engineers
Megohm meter guide for UK HVAC and refrigeration engineers: testing compressor and fan windings to earth on the 500V range, what to disconnect first, and how temperature affects the reading.
High Resistance Meter: A UK Guide for Plant Maintenance
High resistance meter guide for UK plant maintenance engineers: reading insulation in the megohm range, spot-testing motors in a shutdown window, and building a repeatable trend record.
How to Perform an Insulation Resistance Test (UK)
Step-by-step UK insulation resistance test for commissioning: isolate and disconnect both ends, choose 250V, 500V or 1000V, read the megohm result and discharge safely before you energise a cable.
Megger Test Explained: A UK Guide for Electricians
Megger test explained for UK electricians chasing damp-circuit faults: what the test shows, how to read megohm results after RCD tripping, and when an EICR still needs a calibrated multifunction tester.