To view this video, 18th EDITION – SESSION 3 – Zs TABLES, click on the link below https://www.youtube.com/watch?v=HbWhzt4r644 To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA This video is the third in our help series on the 18th Edition of the Wiring Regulations. Whether you are studying for the exam or just…

To view this video, 2 WAY LIGHTING, click on the link below https://www.youtube.com/watch?v=I00WNerWJBo To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA A 2 way lighting circuit is to be found in almost every domestic dwelling, factory or commercial premises. They are incredibly easy to wire up, but they do however cause some…

To view this video, 18TH EDITION SESSION 2 – PARTS and CHAPTERS, click on the link below https://www.youtube.com/watch?v=2wr1JP5l0PU To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA This is the second part to our series of videos on the 18th Edition of the Wiring Regulations BS7671. Not only is this video useful for…

To view this video, CABLES LENGTH CALCULATIONS and R1+R2, click on the link below https://www.youtube.com/watch?v=Qq_9MNH8XxU To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA An important skill for any electrician is to be able to calculate cable resistances for given cable lengths and to able to determine the R1+R2 values for the different…

To view this video, 18th EDITION – Session 1 , click on the link below https://www.youtube.com/watch?v=3sp-NByk0Q8 To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA Are you studying for the BS7671 Wiring Regulations 18th Edition exam? Or are you just looking to update your knowledge and skill in using the Regulations book? Whatever…

To view this video, CABLE TESTING … CONTINUITY and INSULATION RESISTANCE TESTS, click on the link below https://www.youtube.com/watch?v=tT3eGK1b0Yk To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA When assessing electricians we have sometimes found areas of knowledge that were not fully understood or appreciated. Why do we test both continuity of conductors and…

To view this video, CONSUMER UNITS … WIRING A 2 WAY SPLIT LOAD BOARD, click on the link below https://www.youtube.com/watch?v=8uu8kcn4eIY To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA A 2 way split load consumer unit is common place for many new installations nowadays, and properties that have been rewired will have been…

To view this video, EARTH LEAKAGE MEASUREMENTS, click on the link below https://www.youtube.com/watch?v=VrvT2tdCbm4 To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA It is a requirement of the Wiring Regulations that electricians measure the earth leakage currents in an installation upon completion of their work. By testing that the earth leakage is within…

To view this video, PROTECTIVE and SWITCHING DEVICES, click on the link below https://www.youtube.com/watch?v=IR2_9N7J4DY To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA Every electrical accessory, switches, RCDs, circuit breakers etc. will have been designed to perform certain functions, according to a common standard of manufacture, the British Standards and/or the European Norming…

To view this video, HOW RCDs WORK, click on the link below https://www.youtube.com/watch?v=6OgaB0BIj18 To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA Have you ever wondered just how an RCD works? How does it detect those minute differences in current that can mean the difference between a harmful electric shock and walking away…