cjsparkey

It’s not fully clear from that first picture but it looks like a 30mA RCD, are you on a TT earth rod ? Normal practice would be for this to be a 100mA or even 300mA unit to provide some discrimination as it is primarily protecting the circuit as far as the internal DB.

We signed up a while back and finally found a quiet evening to post a hello. We are well into our self build in southwest Scotland, I’m a sparkle by trade so have been around building sites all my working life, we are currently a third of the way through nailing 7500 slates on the roof in an attempt to get watertight. Just like to say I’ve found this forum a great source of inspiration and information.