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T-N-S or TN-C-S ???? Help pls.

MrFox

I have been asked to replace a consumer unit. All seems fine, and the incoming earth seems to be on the sheath of the incomer, so, TN-S. But, it says TN-C-S on the previous EICR. Did that spark make a mistake or is there something here I'm missing? Also, do we presume the Line and Neutral are in that cable going to the meter??? I hope so… Thx in advance.

b13f6e8ca4a8740403be79c8a45433ce-huge-tns_or_tncs.png
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    Thanks everyone for useful feedback. The Ze is 0.1R and Ipf is 2.4kA on the old EICR (I'll measure when I'm in next week as that seems suspiciously accurate), which would indeed indicate a N-E link outside somewhere close? Also I've asked WPD what they classify it as.


    The CT is for a battery solar storage system in the loft.

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  • 0

    Thanks everyone for useful feedback. The Ze is 0.1R and Ipf is 2.4kA on the old EICR (I'll measure when I'm in next week as that seems suspiciously accurate), which would indeed indicate a N-E link outside somewhere close? Also I've asked WPD what they classify it as.


    The CT is for a battery solar storage system in the loft.

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