To view this video, BASIC ELECTRONICS – PART 1 – RESISTANCE, CURRENT, VOLTAGE and WATTS, click on the link below https://www.youtube.com/watch?v=QdRXj3w6mGM This is the first part of our occasional series on basic electronics. It is a fascinating and rewarding career to be in and in these short videos we will introduce the basic concepts and…
VIDEO 087 – THREE PHASE and SINGLE PHASE ELECTRICITY – PART 2
To view this video, THREE PHASE and SINGLE PHASE ELECTRICITY – PART 2, click on the link below https://www.youtube.com/watch?v=EEG3sNeg35A What is three phase? We have all heard of it and it’s companion single phase but how is single phase made and how is three phase generated? Can we get three single phases from a three…
VIDEO 086 – THREE PHASE and SINGLE PHASE ELECTRICITY – PART 1
To view this video, THREE PHASE and SINGLE PHASE ELECTRICITY – PART 1, click on the link below https://www.youtube.com/watch?v=MqQwOQwl5B8 What is three phase? We have all heard of it and it’s companion single phase but how is single phase made and how is three phase generated? Can we get three single phases from a three…
VIDEO 085 – KWH – WHAT IS A KILOWATT HOUR
To view this video, KWH – WHAT IS A KILOWATT HOUR, click on the link below https://www.youtube.com/watch?v=5MXOQMCTRiw How many of us know just how our electricity bill is calculated? What are those symbols and words that they love to use on the bill, what do they mean? How can we determine if one appliance is…
VIDEO 084 – SELECTIVITY DISCRIMINATION and COORDINATION
To view this video, SELECTIVITY DISCRIMINATION and COORDINATION, click on the link below https://www.youtube.com/watch?v=lOcbVQgCSpM Just how do you ensure that a fuse or breaker is going to blow first in an electrical circuit. It is not just simply a matter of choosing something bigger. We have to consider the expected overload current, since different devices…
VIDEO 083 – SCHEDULE OF INSPECTIONS – HOW TO COMPLETE
To view this video, SCHEDULE OF INSPECTIONS – HOW TO COMPLETE, click on the link below https://www.youtube.com/watch?v=Mnn3Ja9g01A We are often asked about completing the different forms and certificates used in the electrical trades and this video is about the Schedule of Inspections for initial verifications. This is a different form to that used for Periodic…
VIDEO 082 – 18th EDITION – SESSION 14 – FORMULAS and CALCULATIONS
To view this video, 18th EDITION – SESSION 14 – FORMULAS and CALCULATIONS, click on the link below https://www.youtube.com/watch?v=FXxxE97xpFA Whether you are studying for the exam or just wanting to keep your knowledge current, these videos will be of great help. They focus on the 18th Edition of the Wiring Regulations BS7671 and this video…
VIDEO 081 – EIC COMPLETION – ELECTRICAL INSTALLATION CERTIFICATE
To view this video, EIC COMPLETION – ELECTRICAL INSTALLATION CERTIFICATE, click on the link below https://www.youtube.com/watch?v=lvoZJrBZkS0 We have often been asked to produce a video on completing the different forms and certificates used in the electrical trades. This video, then, is about the Electrical Installation Certificate or EIC. We look at the certificates or model…
VIDEO 080 – 18th EDITION – SESSION 13 – THE APPENDICES
To view this video, 18th EDITION – SESSION 13 – THE APPENDICES, click on the link below https://www.youtube.com/watch?v=w01C3tEKeUQ This series of exam help videos focuses on the 18th Edition of the Wiring Regulations BS7671. Whether you are studying for the exam or just wanting to keep your knowledge current, these videos will be of great…
VIDEO 079 – SHARED NEUTRALS or BORROWED NEUTRAL
To view this video, SHARED NEUTRALS, click on the link below https://www.youtube.com/watch?v=gr6Z_bBiy5g This video explains what is meant by the term “Shared Neutral” or sometimes called a “Borrowed Neutral”. We are often asked why it is dangerous if everything is working normally, or so it would seem. So … with the aid of simple circuit…