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RCD problem during test
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<blockquote data-quote="Dave.C" data-source="post: 432331" data-attributes="member: 27848"><p>Canoe Boy</p><p></p><p> That is my opinion, tripped before test could be completed although I think I need to do as Rob the Rich suggests and test whilst no loads are on.</p><p></p><p>As the same problem did not occur upstairs / on other RCD, there must be an issue with an appliance / load.</p><p></p><p> I have found some other info and it states</p><p></p><p><u><span style="font-size: 11px"><em>If you get 'TRP' displayed on the Megger it either means you haven't connected probes correctly or there isn't an earth path. I speak from experience...</em></span></u></p><p><u><span style="font-size: 11px"><em></em></span></u></p><p><u><span style="font-size: 11px"><em> Jim</em></span></u></p><p></p><p>This was from a Screwfix forum, I know I had good probe connections so can only put it down to earth path, however, I had an R1+R2 reading of 0.39 from garage to main D/B, where the original cert shows 0.61 and Zs measured 0.22 vs 0.94 on cert which seems a huge difference.</p><p></p><p>I will go back to check with all loads disconnected</p><p></p><p>Thank you all for the pointers and advice</p></blockquote><p></p>
[QUOTE="Dave.C, post: 432331, member: 27848"] Canoe Boy That is my opinion, tripped before test could be completed although I think I need to do as Rob the Rich suggests and test whilst no loads are on. As the same problem did not occur upstairs / on other RCD, there must be an issue with an appliance / load. I have found some other info and it states [U][SIZE=11px][I]If you get 'TRP' displayed on the Megger it either means you haven't connected probes correctly or there isn't an earth path. I speak from experience... Jim[/I][/SIZE][/U] This was from a Screwfix forum, I know I had good probe connections so can only put it down to earth path, however, I had an R1+R2 reading of 0.39 from garage to main D/B, where the original cert shows 0.61 and Zs measured 0.22 vs 0.94 on cert which seems a huge difference. I will go back to check with all loads disconnected Thank you all for the pointers and advice [/QUOTE]
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