To go directly to the 18th Edition Help Playlist, (14 videos), click on the link below … https://www.youtube.com/playlist?list=PLTVT88nFGKMy1sq4GLVX2SypMp4c9b-mf The 18th Edition exam is not about what regulations you can remember, but more about your ability to find the correct regulation using the information in the question. The exam question will always contain enough information –…
VIDEO 100 – Zs – TABULATED or MEASURED – EASY CALCULATIONS
To view this video, Zs – TABULATED or MEASURED, click on the link below https://www.youtube.com/watch?v=YVT5d1d3Q8g We are sometimes asked about so called magic numbers, those numbers that will allow us to quickly calculate and determine certain electrical parameters without the need to start searching through many pages of the Wiring Regulations or the On-Site Guide….
VIDEO 099 – EXTENDING SOCKET CIRCUITS – RING and RADIAL
To view this video, EXTENDING SOCKET CIRCUITS, click on the link below https://www.youtube.com/watch?v=3mBXNBwpxXo There are many frequently asked questions to do with extending socket circuits… Can we extend a ring circuit, can we add to a radial circuit? What size fuse must it be and what size cables are permitted? How many sockets can I…
VIDEO 098 – 2 PLATE LIGHTING – ONE WAY and TWO WAY LIGHTING
To view this video, 2 PLATE LIGHTING – ONE WAY and TWO WAY LIGHTING, click on the link below https://www.youtube.com/watch?v=L1cyoqBLkeI How do we install a 2 plate lighting circuit? What is the difference between three plate lighting and two plate lighting? How do we wire up a two way switching circuit? In this video we will…
VIDEO 097 – GARAGE DOOR WIRING – MOTORISING THE DOOR
To view this video, GARAGE DOOR WIRING, click on the link below https://www.youtube.com/watch?v=1eqjPpjBNqA How do we connect the cables to a garage door motor? Which wires go to the motor, which ones to the switch and where do the phase and neutral wires go? And what can we do if the door goes up when…
VIDEO 096 – LIGHTING CIRCUIT FAULTS – SOME COMMON PROBLEMS and SOLUTIONS
To view this video, LIGHTING CIRCUIT FAULTS, click on the link below https://www.youtube.com/watch?v=S1Tzr5VX8-Q There are many occasions when a customer has problems with lighting circuits, but there is little to go wrong with lighting, the occasional lamp that blows, maybe the odd switch that decides to stop switching and that is about it. A lot…
VIDEO 095 – BONDING PLASTIC and COPPER PIPEWORK
To view this video, BONDING PLASTIC and COPPER PIPEWORK, click on the link below https://www.youtube.com/watch?v=EYj9mvOfF_w Do we need to bond copper pipes if the incoming water supply is in plastic pipes? There is often some confusion about what to do; and in this video we will look at several scenarios to help you to better…
VIDEO 094 – 3 PHASE MOTORS – CHANGING DIRECTION
To view this video, 3 PHASE MOTORS – CHANGING DIRECTION, click on the link below https://www.youtube.com/watch?v=2khKIuHD5dw An often asked question – How do we make a 3 phase motor rotate in the opposite direction? In this video we will look at how to do this with direct on line motors, or DOL motors. We will…
VIDEO 093 – FORWARD REVERSE SINGLE PHASE MOTOR DIRECTION
To view this video, FORWARD REVERSE SINGLE PHASE MOTOR DIRECTION, click on the link below https://www.youtube.com/watch?v=45re1J-RxKc Many times we have been asked by customers if it is possible to install a switch to make a single phase electric motor change direction. And we are asked by electricians – just how do we install a single…
VIDEO 092 – BASIC ELECTRONICS – PART 3 – AC to DC CONVERSION and FULL WAVE RECTIFIERS
To view this video, BASIC ELECTRONICS – PART 3 – AC to DC CONVERSION, click on the link below https://www.youtube.com/watch?v=3CNcAED5AyM This is the third video in our series on basic electronics and here we look at converting our AC supply voltage into DC direct current at a much lower voltage for use on electronic circuits…