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The way I see it is that isolation switches are more for convenience than for safety, so the lack of one means it's a C3, because it's an area for improvement. It is not a C2, because it's not potentially dangerous.

Many thanks to all of you for confirming my gut feel. I had a different spark do an EICR in my own house and he never commented about any of the 3 extractor fan isolating rocker switches I have in the 3 bathrooms in my house. They are all good quality plastic components with no exposed metal...

The heater is mounted under the bath in the upstairs bathroom, and is accessed by removing a service panel in the ceiling in the room underneath it. The spark wants the isolation switch mounted in the ceiling near the access panel. So, if a fault occurs, then you would have to run down the...

It's an instant electric water heater, so no moving parts, so no mechanical maintenance. Yes, it might be a bit more convenient to just flick a double pole isolation switch once every 15 years when the appliance needs replacement, but that falls into the convenience bucket ... not the safety...

I have just had a mandatory EICR done for a rental property. The electrician issued a C2 for no local isolator switch for an electric instant water heater that is mounted under the bath. When I asked him which regulation this was contravening he was unable to quote one, but said a fault COULD...

I have just had a mandatory EICR done for a rental property. The electrician issued a C2 for a rocker type fan isolation switch mounted in the ceiling at 2.5m above the floor and 2m away from the basin tap, which is the closest 'wet component'. He wanted to see a pull switch instead. When I...

Is it worth trying to have an RCD for each of the three phases that will be split into monophases to balance the load around the house so that I can reuse the 10 existing MCBs, or should I just take the plunge and go RCBO throughout?

I'm trying to wrap my head around the way in which to implement a three phase distribution board that suits my requirements ... requirements which are by no means unusual. I need three phases only for the pump of a heat pump. The whole of the rest of the system can be single phase. From...