Hey all I'm sure it's an old frequently asked one but had a callout this afternoon where young couple just bought brand new high end Miele washing machine and had plugged into an old powerbreaker rcd socket in garage. As soon as it's turned on to start any program and door interlock operates as next part of sequence cuts in internally the rcd trips. I explained basically that machines, fridges, IT kit can all leak a bit of current and cause nuisance tripping. It is brand new though but it's also very electronic based too. I tested the socket with my Fluke MFT and on ramp test it tripped fine @ 24mA on 0 degree and falling 180 degree sides and on auto test rcd it was at 38.6 ms on x 1 and 18ms on x 5 settings just standard 30mA red socket. All fed via a spur cable from in house upstairs ring from BS3036 board. Do you think get machine checked out / replaced or just maybe extra leakage from circuitry inside ? I mean 3.5mA usual for a washer but must be somewhere around 24mA as that's the point the Fluke reads it tripping.
Best bit I thought was sketchy was that from that socket it's spurred off again to an fcu for ancient boiler controls and 6mm earth singles onto pipes there are from BS951 clamps and poked into the socket itself earth terminal so in effect bonded back on a single 1.5mm cpc from the spur cable.
Best bit I thought was sketchy was that from that socket it's spurred off again to an fcu for ancient boiler controls and 6mm earth singles onto pipes there are from BS951 clamps and poked into the socket itself earth terminal so in effect bonded back on a single 1.5mm cpc from the spur cable.
