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Unexpected Reading Between Earth And Neutral
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<blockquote data-quote="ProDave" data-source="post: 382727" data-attributes="member: 6969"><p>The point is, if you do not understand that 0.05M <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" />hms from N-E is a problem, then perhaps you are in the wrong profession?</p><p></p><p>Why do you think such a low N-E reading might give issues and might cause an RCD to trip?</p><p></p><p>Or do you think it's still high enough not to worry about? After all there's not much voltage between N and E is there?</p><p></p><p>I sometimes think the old fashioned meggers, with a mechaincal dial and a needle were better. With those, if the needle stayed well over to the left all was well in the world. If the needle made a bee line for the right hand end of the scale, you knew you had a problem. it was obvious. These days it just tells you some numbers, and it would appear some people just can't visualise what those numbers mean.</p></blockquote><p></p>
[QUOTE="ProDave, post: 382727, member: 6969"] The point is, if you do not understand that 0.05M :ohms from N-E is a problem, then perhaps you are in the wrong profession? Why do you think such a low N-E reading might give issues and might cause an RCD to trip? Or do you think it's still high enough not to worry about? After all there's not much voltage between N and E is there? I sometimes think the old fashioned meggers, with a mechaincal dial and a needle were better. With those, if the needle stayed well over to the left all was well in the world. If the needle made a bee line for the right hand end of the scale, you knew you had a problem. it was obvious. These days it just tells you some numbers, and it would appear some people just can't visualise what those numbers mean. [/QUOTE]
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