This video gives a step by step guide, showing you which formulae to use, which Regulations apply and which tables to use to ensure you have calculated the volt drop correctly and whether or not it is compliant with BS 7671.
Calculating voltage drop in a cable. Is your volt drop too high. Max allowed volt. What to do if your volt drop is too high.
BS7671 18th Edition amendment 2
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On – Site Guide 18th Edition amendment 2
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Casio Scientific Calculator
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Multi coloured pen
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15cm ruler
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30cm ruler
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Folding ruler
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Black writing pens
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