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Yes 543-01-01 was the same regarding minimum cable sizes in 16th amd 2 : 2004
Had a feeling it would be, the 16th was very earthy, equipotental/ simultaneous, sinks, windows, radiators - its a lot easier these days :)
Well I got around 543-01-01 by using insulated & sheathed singles..
 
Had a feeling it would be, the 16th was very earthy, equipotental/ simultaneous, sinks, windows, radiators - its a lot easier these days :)
Well I got around 543-01-01 by using insulated & sheathed singles..

2.5mm is the minimum size if mechanical protection is provided so your 1mm cpc is non compliant even if you do allow the sheath as mechanical protection.
 
house or bungalow?
Approx 15 years ago I had the same problem in a bungalow..
All was ok apart from no RCD and no lighting cpc..
I installed an RCD and a separate 1mm cpc for the lighting circuit..
How was the cpc installed?
 
Question people. When you install a 4mm earth, how do you go about connecting it to the light fittings? I thought it would be too big?
 
Who connects the fittings up?
Sorry Pete, I wasn't very clear. I mean I don't install a 4mm cpc additional to the existing wiring, I just rewire with new cable incorporating a cpc. The former is an option I wouldn't consider.
 
Was that also the case under the old 16th?
The singles that I ran in were insulated and sheathed, as I needed to pick up some live feeds and also at that time it cost less than g/y singles
Yes it was definitely a requirement of the 16th Edition.
 
Sorry Pete, I wasn't very clear. I mean I don't install a 4mm cpc additional to the existing wiring, I just rewire with new cable incorporating a cpc. The former is an option I wouldn't consider.
Right I see
 

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