This Q & A of the Day concerns TN-C earthing systems and RCDs. It is answered by Eaton (Theme - Distribution Equipment):
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| Why not use an RCD in a TN-C earthing system? |
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This Q & A of the Day is just one of thousands answered on a daily basis by our Voltimum Experts in the Technical Expertise area. Question: Why can't I use an RCD in a TN-C earthing system?
Answer: In TN-C (and IT) networks, residual current devices (RCDs) are far less likely to detect an insulation fault. In a TN-C system they would also be very vulnerable to unwanted triggering from contact between earths of circuits on different RCDs or with real ground, so making their use impractical.
To see many more Q & A in Voltimum UK's Experts Area, please click on the link: www.voltimum.co.uk/consult.php?universe=consult.index.questions
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