I'm just contemplating the idea of replacing an old Hager consumer unit (6 ways...no RCD)....A few appliances I've installed have a dedicated RCD (underfloor heating cable and steam shower) - note: the RCDs are not in the Consumer Unit but next the appliances in question (it should be obvious from the title).
What are the benefits or disadvantages (if any) if in a non distant future I decide to update the CU with a 17th edition complete with RCDs?
Will both RCD from the appliance and from the CU trigger at the same time? If the appliance being affected by a fault has a dedicated RCD would this mean that it would be shut down while the rest of the circuit will remain live?
I'd like the idea that there might still be some benefits in having some remote RCD and on the consumer unit - not just an overkill or worst still an over-sensitive system....
Any idea?
What are the benefits or disadvantages (if any) if in a non distant future I decide to update the CU with a 17th edition complete with RCDs?
Will both RCD from the appliance and from the CU trigger at the same time? If the appliance being affected by a fault has a dedicated RCD would this mean that it would be shut down while the rest of the circuit will remain live?
I'd like the idea that there might still be some benefits in having some remote RCD and on the consumer unit - not just an overkill or worst still an over-sensitive system....
Any idea?