TT SYSTEMS - WHY MUST THEY BE RCD PROTECTED

Why must a TT system have full RCD protection?
What happens during an earth fault?
Why can’t we use 1667 ohms for everything?
Can an RCD be fitted outside the consumer unit?
What about long meter tails?
These are just some of the questions we have been asked in relation to TT systems, and in this video we will answer these questions and show you some of the dangers of NOT having an RCD installed
This video is No.130 on our UA-cam channel where we have videos on a wide range of electrical topics.
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Always work safely, electricity can be dangerous. If you are unsure, stop and seek advice.
This video is provided for guidance only. Every electrical situation is different, please check and ensure that you are applying this learning information to your own individual circumstances correctly and safely. If in doubt, stop and seek competent advice.