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RCD trip at socket but not origin
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<blockquote data-quote="Doc Hudson" data-source="post: 450685" data-attributes="member: 1607"><p>So are you saying a 30ma RCD covering the whole installation is tripping when you test at the load of a circuit whilst other circuits are still connected? The guidance for testing RCD's is as near to source as possible with load(s) disconnected. So if the RCD itself is working OK when tested at source with no loads, that could suggest some cumulative natural leakage on any combination of the circuits connected via that RCD. How many circuits are connected via this RCD? It may be just a poor installation design not allowing for natural leakage on multiple circuits. </p><p></p><p>Doc H.</p></blockquote><p></p>
[QUOTE="Doc Hudson, post: 450685, member: 1607"] So are you saying a 30ma RCD covering the whole installation is tripping when you test at the load of a circuit whilst other circuits are still connected? The guidance for testing RCD's is as near to source as possible with load(s) disconnected. So if the RCD itself is working OK when tested at source with no loads, that could suggest some cumulative natural leakage on any combination of the circuits connected via that RCD. How many circuits are connected via this RCD? It may be just a poor installation design not allowing for natural leakage on multiple circuits. Doc H. [/QUOTE]
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Introduce Yourself
RCD trip at socket but not origin
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