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Help with IR test & bonding query
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<blockquote data-quote="avinalarf" data-source="post: 75800" data-attributes="member: 631"><p>Hi KME, thanks for taking the time to answer. Yes, I know that - just didn't add the M to the icon Blushing</p><p></p><p>Yep, ok with that also.</p><p></p><p>I was using a long bit of cable and it was 0.05, so was just going to subtract that from the reading to gas.</p><p></p><p>Ok, this is where you're confusing me! We were taught to disconnect gas/water earth from MET (to avoid parallel paths), connect PE lead (green) to disconnected earth and just press the probe of the (red) test lead onto the pipe as close to the bonding clamp as possible, but not on it! We were definitely not told to undo the earth clamp.</p><p></p><p> I WAS trying to do an IR test on a ring. I had pulled the cables at the CU and was testing that way (how I was taught). Just couldn't understand why my tester counted up to over 500V when testing from earth to line or neutral, but only going up to 1 when testing between line and neutral. Hope that makes sense.Was my assumption about the earth cables from the main fuse correct?</p></blockquote><p></p>
[QUOTE="avinalarf, post: 75800, member: 631"] Hi KME, thanks for taking the time to answer. Yes, I know that - just didn't add the M to the icon Blushing Yep, ok with that also. I was using a long bit of cable and it was 0.05, so was just going to subtract that from the reading to gas. Ok, this is where you're confusing me! We were taught to disconnect gas/water earth from MET (to avoid parallel paths), connect PE lead (green) to disconnected earth and just press the probe of the (red) test lead onto the pipe as close to the bonding clamp as possible, but not on it! We were definitely not told to undo the earth clamp. I WAS trying to do an IR test on a ring. I had pulled the cables at the CU and was testing that way (how I was taught). Just couldn't understand why my tester counted up to over 500V when testing from earth to line or neutral, but only going up to 1 when testing between line and neutral. Hope that makes sense.Was my assumption about the earth cables from the main fuse correct? [/QUOTE]
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Help with IR test & bonding query
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