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VIDEO 124 – EARTHING A SHED OR OUTBUILDING – TT – TNS – TNCS

Posted on April 27, 2022

  To view this video, EARTHING A SHED OR OUTBUILDING, click on the link below https://www.youtube.com/watch?v=UgDhYDArgdA With more people working from home now, here at LearnElectrics, we have been asked many times about converting a shed into a work space or work cave as some call it. The electrical supply to such a work space,…

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P117 – 2391 CIRCUIT QUESTIONS No.2 – CALCULATIONS AND CIRCUIT CHART – PRINTABLE PDF

Posted on February 2, 2022

P117 – 2391 CIRCUIT QUESTIONS No.2 – CALCULATIONS AND CIRCUIT CHART – PRINTABLE PDF This continues our mini-series on 2391 assessment questions with another test results chart and a further 8 questions with fully worked answers. We have also included an essential calculations sheet with the most relevant calculations for this video and exercise. The…

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P116 – Find r1 from Zs – Printable PDF – Easy Electrical Calculations

Posted on January 17, 2022

        We should all know how to calculate Zs from the various circuit measurements. But can we reverse the process. If we have measured Zs then how can we work backwards and arrive at the resistances of the individual circuit conductors? And how do we unravel the resistance values of a ring…

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P115 – CABLE LENGTH CALCULATIONS FROM RESISTANCE

Posted on December 29, 2021

CABLE LENGTH CALCULATIONS FROM RESISTANCE When inspecting an installation, planning extensions to circuits and other remedial work, we may need to know the length of a circuit’s cables. You may know, for instance, that you have the two ends of a ring circuit, but do you know the route taken by the circuit’s twin and…

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VIDEO 001 THE RESISTOR COLOUR CODE

Posted on September 30, 2021

VIDEO 001 The Resistor Colour Code To view this video, The Resistor Colour Code, click on the link below https://www.youtube.com/watch?v=Rexyl2V829g To view all our videos, click on the following link https://www.youtube.com/channel/UCYaJQnpO4XAp0yCgqzMkmfA   In this video you will learn how to use The Resistor Colour Code for 3 band, 4 band and 5 band resistors. For…

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Recent Posts

  • VIDEO 147 – TABLE OF TABLES – 18th EDITION – AMENDMENT 2 – FINDING THE ANSWER
  • VIDEO 146 NEW REGULATIONS – NEW QUESTIONS – 18TH EDITION – AMENDMENT 2 – FINDING THE ANSWER
  • VIDEO 145 – Zs TABLES – 18th EDITION EXAM – AMENDMENT 2 – ANSWERING THE QUESTION
  • VIDEO 144 – 18TH EDITION EXAM QUESTIONS – AMENDMENT 2 – FINDING THE ANSWER
  • VIDEO 143 – RING CIRCUIT CALCULATIONS – TESTING METHODS – SOME PROBLEMS – THE RIGHT NUMBERS AND THE WRONG ONES

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