There may be few Electrical 'Codes' as such in France, but one of them is that that British flat grey twin-and-earth (all photos) wire is banned, because the earth wire is bare inside the outer sheath with no color coded sleeve. If EDF (National PoCo) see any of that stuff, even when just reading your meter, they cut you off immediately!!
Is that chewing gum or Electroplasm sealant?
Alan


Wood work but can't!