earth cables

Hi all I am posting here because I always had good advice when I lived in the UK and the forums here in France are not so helpful . Could be my French ! I wanted a bit of advice. We are buying a house built in 1978. The electrical report came back with some anomalies, which are fairly standard...

_ [1] I've used a multi meter to suss out the pins on the twin lamps So, with the lamps upturned, facing upwards and pins going from bottom to top it shows that, Pin 1 is live brown Pin 2 is Blue Neutral Pin 3 is Hot wire Black Pin 4 is Earth _ [2] [very important] The Ballast manual says...

I am changing a two gang light switch from a older plastic version to a metal one. Moving the earths from the back box to the earth terminal on the light switch / plate, but on the two gang on the landing there are two red wires going into the earth terminal in the back box. Do these get moved...

Just seen a video from a fairly big UK based YouTuber, who went to Home Base to get a some bits to make up an extension lead socket. Shame he picked the 2 core 0.75mm² flex. Not sure if he know's he has not earthed it or not or the safety implications of what he has done? Video Below, see...

I want to connect 6mm Earthwire from a bathroom into one of the bathroom power circuits as it must not be taken back to a Consumer board. I have a 20 amp junction box # with cables fitted for the bathroom and the 6mm is too large to fit into the Earth terminal in that box. Is it acceptable to...