INSULATION RESISTANCE TESTING AND TRACING

Why do we test the insulation resistance of electrical circuits? After all, it’s just plastic, what can go wrong? In this video we look at the reasons for testing electrical circuits, and then look at some established methods to carry out insulation resistance tests. How do we prepare for testing, what must we do to the circuits even before we begin. And then we will look at the numbers involved. What is a good result, a pass; and what is a fail? We will show you how to calculate parallel resistances to obtain an accurate value for the whole of the installation so that decisions can be made regarding the ongoing safety and reliability. And if we do find problems on a circuit or within the installation, what can we do about it? So finally, we will introduce an excellent method for tracing insulation resistance faults in a circuit. This video is number 106 on our YouTube channel To see a full list of all our LearnElectrics videos, click on the link below.    / @learnelectrics4402   You can also view all our videos by typing LearnElectrics all one word into the YouTube search bar. Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice. This video is provided for guidance only. Every electrical situation is different, please check and ensure that you are applying this learning information to your own individual circumstances correctly and safely. If in doubt, stop and seek competent advice.