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Student & Learning Zone - City & Guilds
What fault can turn a TT into a TNCS and disable the RCD?
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<blockquote data-quote="park1" data-source="post: 263405" data-attributes="member: 18748"><p>Yes my bad, i was looking at it in a in service position, where there would need to be a double fault, L-E and then a N-E. Then realised the the RCD tester is in fact acting as the second fault, so current may divide down the neutral and earth .</p><p></p><p>As mentioned, the RCD need's to be tested in an isolated manor.</p></blockquote><p></p>
[QUOTE="park1, post: 263405, member: 18748"] Yes my bad, i was looking at it in a in service position, where there would need to be a double fault, L-E and then a N-E. Then realised the the RCD tester is in fact acting as the second fault, so current may divide down the neutral and earth . As mentioned, the RCD need's to be tested in an isolated manor. [/QUOTE]
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Student & Learning Zone - City & Guilds
What fault can turn a TT into a TNCS and disable the RCD?
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