To view this video, KITCHEN ELECTRICS, click on the link below https://www.youtube.com/watch?v=bOSMYzXY_Uk We see lots of questions posted about kitchens and we hope to show you, with some simple drawings, what you should consider when working in kitchens in order to keep the users and the building safe. Some of the more frequent questions that…

To view this video, DIMMER SWITCHES, click on the link below https://www.youtube.com/watch?v=K7gp6JhvmHs We’ve had many questions about dimmer switches and asking how they work. In this video we will look at the more common type of dimmer switch that is used with standard domestic filament lamps. This will be the type of dimmer switch that…

To view this video, TRANSFORMER CALCULATIONS, click on the link below … https://www.youtube.com/watch?v=Bfftl8hRYp0 We’ve received a few requests for a video on transformer calculations and this video is a result of that. Transformers are easy to understand and to perform calculations on, if a few basic rules are understood. As with most calculations, understanding what…

To view this video, OBSERVATION CODES, click on the link https://www.youtube.com/watch?v=7lpkJFhq1E0 This video is a short introduction to recording observation codes on EICRs correctly. What code to use is very much up to the individual inspector who is on-the-spot, so to speak. And many inspectors will need little assistance to coding correctly. But what if…

To view this video, 3 PHASE VOLTAGE DROP, click on the link https://www.youtube.com/watch?v=RCHw0TUEAes We’ve had lots of requests for a video on 3 phase voltage drop in electrical installations. Many factors can affect this, the position in relation to the origin, cable sizes, types of cable and the loads being serviced to name a few….

To view this video, LOOP IMPEDANCE & PFC, click on the link https://www.youtube.com/watch?v=xtDId-g7GjU Recently, we made a video on validating ring circuit test results with tips on what you should know for electrical assessments. This video follows on from that and looks at Earth Fault Loop Impedance testing, Ze, PFC and more. Again, we keep…

To view this video, VALIDATE TEST RESULTS, click on the link https://www.youtube.com/watch?v=6Re2sqGVoWY In this LearnElectrics video we will look at some assessment tips and methods on validating R1 + R2 for ring circuits and proving that the Zs measurements that you have made with your test meter are acceptable. The ability to do this, to…

To view this video, WHAT IS POWER FACTOR, click on the link https://www.youtube.com/watch?v=bXiE9bdFLsU In this video from LearnElectrics, we will take a very gentle look at this thing called power factor; and show you how we use Watts and volt-amperes to help us look at how efficient a system is. Starting at a nice easy…

To view this video, MORE MAGIC NUMBERS, click on the link https://www.youtube.com/watch?v=l0y8gtfUj_k Several years ago we made a short video called “35 THE MAGIC NUMBER” and it’s now time to improve on that, and also to add a second magic number. These numbers will help you to calculate Voltage Drop and Loop Impedance or Zs…

To view this video, 3 PHASE LOST NEUTRAL, click on the link https://www.youtube.com/watch?v=0MVNJUstzCY We’ve had questions asked recently about 3 phase installations and what happens if the neutral connection is lost. In particular, why is equipment damaged? And why is a 3 phase lost neutral serious? As well as asking what happens if the neutral…