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RCCB tripping - help needed..
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<blockquote data-quote="mattydubster" data-source="post: 484019" data-attributes="member: 31591"><p>Sorted! </p><p></p><p>Ok, so I did a ramp test with everything disconnected and it popped out at 25mA then added the circuits one by one and got a leak of only about 3 or 4 mA, that's with all appliances etc connected. Until.... I turned on the final circuit which is an old immersion heater circuit that supplies a lift -then I could barely get the trip to stay on and couldn't get a ramp test reading either. Switched off the isolation switch at the lift end and everything was perfect again. </p><p></p><p>So I switched everything off and did IR on the lift circuit with the lift isolator switched on.....L/E &amp; N/E were perfect. I then did a ramp test with just the lift on and it tripped at 19mA.</p><p></p><p>Did the only thing I could do - put the Lift on a separate RCBO and then everything was completely fine!</p><p></p><p>Thanks for your help people</p></blockquote><p></p>
[QUOTE="mattydubster, post: 484019, member: 31591"] Sorted! Ok, so I did a ramp test with everything disconnected and it popped out at 25mA then added the circuits one by one and got a leak of only about 3 or 4 mA, that's with all appliances etc connected. Until.... I turned on the final circuit which is an old immersion heater circuit that supplies a lift -then I could barely get the trip to stay on and couldn't get a ramp test reading either. Switched off the isolation switch at the lift end and everything was perfect again. So I switched everything off and did IR on the lift circuit with the lift isolator switched on.....L/E & N/E were perfect. I then did a ramp test with just the lift on and it tripped at 19mA. Did the only thing I could do - put the Lift on a separate RCBO and then everything was completely fine! Thanks for your help people [/QUOTE]
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RCCB tripping - help needed..
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