[TT system]
There's some confusion here, I think. If you have a single consumer unit and _all_ circuits are protected by RCBOs then you won't need a "master RCD" - just a main switch.
[TT system]
There's some confusion here, I think. If you have a single consumer unit and _all_ circuits are protected by RCBOs then you won't need a "master RCD" - just a main switch.
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