Easy Guide to Insulation Resistance Testing, Fault Finding and How to Complete the Test Sheet

How to carry out Insulation Resistance to the latest wiring regulations and complete the schedule of results. Fault finding for L-N, L-E and N-E. Great refresher or just curious if you have an exam coming up such as 2391 or AM2 or AM2S. Includes Safe Isolation procedure. All level 3 students should know this. Calculate R1 + R2, fault find by looking at the readings.