2 Plate Method Testing 2 Way Switching for Continuity of CPC, Polarity and Insulation Resistance EAL Awards City & Guilds In this video we look at a lighting circuit using the 2 plate method that is controlled by 2 way switching. I demonstrate how to test for continuity of the CPC, polarity and insulation resistance. It is very important that all electronic devises are removed before carrying out our insulation resistance test. I also demonstrate how the insulation resistance test should be carr

Why Testing Grid Switches Can Be a Nightmare for Electricians 1 Way Lighting Circuit Wired in Conduit - Continuity of the CPC & Insulation Resistance Tests In this video we look at carrying out the dead tests on our 1 way lighting circuit wired in PVC singles in a plastic conduit exercise. I demonstrate how to set up my Megger MFT tester and then carryout the continuity of CPC test and include the polarity test at the same time. Next I go on to demonstrate how to carryout the insulation resistan