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Unexpected Reading Between Earth And Neutral
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<blockquote data-quote="not_shocked_yet" data-source="post: 382613" data-attributes="member: 25580"><p>Hello All,</p><p></p><p>I didn't have time today to check the readings taken last week that have been discussed here as the client needed the RDC tripping issue sorted - which is is! Loose wiring in the switch plate.</p><p></p><p>I ran an Insulation Resistance test with 500V at the DB in the stable block. The system is TT and the stable has it's own earth electrode (according to the client, I haven't looked for it yet but will find tomorrow in the bushes somewhere...)</p><p></p><p>The IR test recorded the following:</p><p></p><p>LN 115 mOhm</p><p></p><p>LE 119 mOhm</p><p></p><p>NE 0.26 mOhm</p><p></p><p>There are 7 circuits on the DB (2 x ring final, 4 x lighting, 1 x another I forget what it is)</p><p></p><p>I will test each individual N to the earth block to see if it is just one circuit which is causing this reading.</p><p></p><p>Any kind thoughts would be welcome.</p><p></p><p>Many thanks.</p></blockquote><p></p>
[QUOTE="not_shocked_yet, post: 382613, member: 25580"] Hello All, I didn't have time today to check the readings taken last week that have been discussed here as the client needed the RDC tripping issue sorted - which is is! Loose wiring in the switch plate. I ran an Insulation Resistance test with 500V at the DB in the stable block. The system is TT and the stable has it's own earth electrode (according to the client, I haven't looked for it yet but will find tomorrow in the bushes somewhere...) The IR test recorded the following: LN 115 mOhm LE 119 mOhm NE 0.26 mOhm There are 7 circuits on the DB (2 x ring final, 4 x lighting, 1 x another I forget what it is) I will test each individual N to the earth block to see if it is just one circuit which is causing this reading. Any kind thoughts would be welcome. Many thanks. [/QUOTE]
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