To view this video, NEUTRAL CURRENTS IN 3 PHASE SYSTEMS, click on the link below https://www.youtube.com/watch?v=zlHbsT4bhR8 At LearnElectrics we have often been asked about neutral currents in three phase systems and how they appear to differ from single phase systems. Examples of questions have included … In a balanced 3 phase system, why are there…

To view this video, PFC TESTING, click on the link below https://www.youtube.com/watch?v=vzgJobigpg0 In this LearnElectrics video we will look at the differences between the single phase and three phase testing of prospective fault current. We are frequently asked questions about the differences and they have included things like … What is PFC? Is PEFC the…

To view this video, 2 WAY AND INTERMEDIATE LIGHTING, click on the link below https://www.youtube.com/watch?v=IGEs5ZZqZx0 In this LearnElectrics video we will look a little deeper into lighting circuits and compare the differences between two common wiring styles. Some recent questions about lighting have included … How do we connect the wiring for 2 way lighting…

To view this video, CAN I FIND R1, click on the link below https://www.youtube.com/watch?v=TXDQkk4VTGA In this video from LearnElectrics we look at how we can find R1 for a circuit given minimal information; and show just what the differences in R1 and R2 are in Ring and Radial circuits. We’ve had several requests from people…

To view this video, 2 PLATE & 3 PLATE LIGHTING, click on the link below https://www.youtube.com/watch?v=NEjCXO_ZC5c In this video from LearnElectrics, we will look at the differences between two plate and three plate lighting circuits – something we have often been asked. Questions like … Just what is the difference? How do we recognise a…

To view this video, AMENDMENT 2 EXAM HELP, click on the link below https://www.youtube.com/watch?v=HYWcYqL5s8o This video from LearnElectrics will help you to understand how to use the Wiring Regulations book and how to quickly and easily find the correct answers to the questions in the 18th Edition, Amendment 2 exam. Here, there are just ten…

To view this video, 3 GANG LIGHT SWITCHES, click on the link below https://www.youtube.com/watch?v=_TDWlUCWrGA Adding lights and changing light switches will often come up as questions in group discussions. How can we add a new ceiling light and then convert the existing 2 gang light-switch into a 3 gang switch and what are the steps…

To view this video, PAT TESTING – A LITTLE HELP, click on the link below https://www.youtube.com/watch?v=NslxwnfZQfI In this video from Learn Electrics, we will explain some of the fault messages that a PAT test meter might display when conducting an Inspection and Test on Electrical Equipment. This came about because we had a recent request…

To view this video, TESTING ZE, click on the link below https://www.youtube.com/watch?v=qAah0Uqx9oI In this video from Learn Electrics, we will look at the differences between the common earthing systems, the things that you need to know when testing Ze. Although the testing of Ze is similar in each case, as we have shown in previous…

To view this video, RING CIRCUIT SPURS, click on the link below https://www.youtube.com/watch?v=V0_6_WmkmsY Testing ring circuits is easy and many electricians are more than proficient at testing them. For some though, the difficulty comes with understanding where the numbers come from. Why the test results are what they are, how do we detect a spur,…