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Neutral potential on TT system
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<blockquote data-quote="Normanw" data-source="post: 466337" data-attributes="member: 30347"><p>Whilst troubleshooting a PV system fault (maybe more of that later but it’s not the issue here) my electrician found 235v L-N 202v L-G and 30v N-G. He disconnected everything including all N and G tails, same result. Fitted a new Earth rod, same result. Called supplier who disconnected the house completely (which incidentally includes the complete PV system) and found 235v L-N and said “earth problem - we don’t supply it, your problem mate”.</p><p></p><p>I asked them to check L-G and N-G (my earth rod)whilst house was completely disconnected , they found 202 &amp; 30 but still said your problem mate. I have checked next door who are on same supply, also TT system, they have 235/0/0. </p><p></p><p>Supplier checked his supply cable between transfo and me, don’t know how, says it’s ok. So supplier says supply ok, it’s a house problem, my electrician says house is ok, I’m going to try to get them both here together. </p><p></p><p>Anybody ever seen this before? Neither electrician nor supplier has apparently </p></blockquote><p></p>
[QUOTE="Normanw, post: 466337, member: 30347"] Whilst troubleshooting a PV system fault (maybe more of that later but it’s not the issue here) my electrician found 235v L-N 202v L-G and 30v N-G. He disconnected everything including all N and G tails, same result. Fitted a new Earth rod, same result. Called supplier who disconnected the house completely (which incidentally includes the complete PV system) and found 235v L-N and said “earth problem - we don’t supply it, your problem mate”. I asked them to check L-G and N-G (my earth rod)whilst house was completely disconnected , they found 202 & 30 but still said your problem mate. I have checked next door who are on same supply, also TT system, they have 235/0/0. Supplier checked his supply cable between transfo and me, don’t know how, says it’s ok. So supplier says supply ok, it’s a house problem, my electrician says house is ok, I’m going to try to get them both here together. Anybody ever seen this before? Neither electrician nor supplier has apparently [/QUOTE]
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Neutral potential on TT system
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