SORNagain Posted April 28, 2015 Share Posted April 28, 2015 I wouldn't be too worried about the earth, as the output of the inverter is isolated. Like a building site transformer you could touch live or neutral without a shock, just not at the same time! Rcds don't care about earth either - they just compare the current going out with what is coming back. If they are not equal it trips, the assumption being some current must be flowing to earth. You can connect the mains earth to chassis, this is the safest thing to do since you never know how good the insulation in the inverter is. Your rcd will do nothing unless the insulation in inverter fails and you have an inadvertent connection to earth externally. (The test button will still work but that's different!) Edit: or as Les says and bond n&e. Then your rcd will work properly! Quote Link to comment Share on other sites More sharing options...
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