What would the professional do?

[Agile]

Senario: rambling old house with kids and lodgers, four fridges, lots of computers, TVs etc.

Whole house on 80A RCD. Two power and one lighting circuit have leakage of about 8 Ma each and this results in occasional trips of the RCD.

To repower, RCD has to be made first and then each circuit added slowly to avoid tripping again.

Tony

 

[camieabz]

Not an expert, but when re-wiring my old place, I got a split MCB circuit box, and left the fridge, freezer and essential low requirement sockets (e.g. the PC) off of the RCD. The rest of the kitchen and the other sockets were put on two 32A MCBs on the RCD.

Just my tuppence.

 

[camieabz]

Oh and I did have one RCD problem. A cheap £5 iron that the missus bought kept tripping the circuit....think it was the thermostat or summat. Bucketed the thing sharpish.

 

[plugwash]

the best soloution would be to find and deal with the cause of the leakage

failing that replace the CU with one with just a switch incomer and then use RCBOs for cuircuits that need rcd protection