Hi ColJack,
Understood. I'm looking at '2005_16_Autumn_Wiring_Matters' which gives a good pictorial representation of the TN-C-S system you mention. I was concerned that the chap might have done something out of the ordinary, but I see now that the practice is not unusual.
That said...
Hi all. We moved from the UK to renovate an old farmhouse in the Czech Republic. As is usual in this very rural region of the country, the house is supplied with 3-phase (Aluminium cables) via pole-mounted overheads at 25Amps/phase max. The wiring in the house was ancient, as was the...