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RCBO problem
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<blockquote data-quote="batty" data-source="post: 33164" data-attributes="member: 66"><p>The reason the Robin type with d-lok trip Rcbo's is because they put 25 amps down circuit for a very short time and because the neutral is solid Rcbo will sense this as a fault and trip this is also why they can trip 6 amp Mcb's. RCD'S on the other hand are double pole and what the d-lok does is freezes RCD while test is performed. Other testers put a much smaller current down circuit and hence do not trip both Rcbo's and RCD'S. I think this is correct if my memory serves me correctly.</p><p></p><p>Batty</p></blockquote><p></p>
[QUOTE="batty, post: 33164, member: 66"] The reason the Robin type with d-lok trip Rcbo's is because they put 25 amps down circuit for a very short time and because the neutral is solid Rcbo will sense this as a fault and trip this is also why they can trip 6 amp Mcb's. RCD'S on the other hand are double pole and what the d-lok does is freezes RCD while test is performed. Other testers put a much smaller current down circuit and hence do not trip both Rcbo's and RCD'S. I think this is correct if my memory serves me correctly. Batty [/QUOTE]
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