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Electrical Inspection & Testing Forum
X5 RCD Test ?
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<blockquote data-quote="PC Electrics" data-source="post: 32631" data-attributes="member: 650"><p>The relevant BS that RCDs are built to perform against requires that at 5x they trip in &lt;40ms. Therefore we are testing the RCD to ensure it meets this performance spec.</p><p></p><p>I've had a few recently that failed at 5x (especially Crabtree RCBOs) which makes me wonder if the manufacturers do a 100% EOL performance test (or use an SPC method) or just rely on us to do their testing for them? I personally believe the BS should insist on 100% EOL testing, given the increased reliance on RCDs now.</p></blockquote><p></p>
[QUOTE="PC Electrics, post: 32631, member: 650"] The relevant BS that RCDs are built to perform against requires that at 5x they trip in <40ms. Therefore we are testing the RCD to ensure it meets this performance spec. I've had a few recently that failed at 5x (especially Crabtree RCBOs) which makes me wonder if the manufacturers do a 100% EOL performance test (or use an SPC method) or just rely on us to do their testing for them? I personally believe the BS should insist on 100% EOL testing, given the increased reliance on RCDs now. [/QUOTE]
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