Hi
I have a site where they have some sockets fed via Three Phase and Neutral and others TP with no N. Rather than both types of sockets for both types of appliances, was looking at 'standardising' and upgrading all plugs to TP and N. And where the appliance did not need a N, it would be left unterminated. That way, the TP no N could still plug into the a TPN socket but only use the TP parts. Hope I am making sense .
My question is, these are all fed by RCBO devices. My concern was around nuisance tripping where N is not being used. I am pretty sure that all phases are monitored so if when an appliance is being used and no N current flowing, then current is still deemed to be balanced as it monitors the current across the phases as well, so will not trip. Is that correct - I am pretty sure it is.
Thanks.
John
I have a site where they have some sockets fed via Three Phase and Neutral and others TP with no N. Rather than both types of sockets for both types of appliances, was looking at 'standardising' and upgrading all plugs to TP and N. And where the appliance did not need a N, it would be left unterminated. That way, the TP no N could still plug into the a TPN socket but only use the TP parts. Hope I am making sense .
My question is, these are all fed by RCBO devices. My concern was around nuisance tripping where N is not being used. I am pretty sure that all phases are monitored so if when an appliance is being used and no N current flowing, then current is still deemed to be balanced as it monitors the current across the phases as well, so will not trip. Is that correct - I am pretty sure it is.
Thanks.
John