Upgrade of fat braid main earth conductor

[SW1970]

Hi folks, about to do a domestic PIR and observed during survey that the main earth conductor is flat braided copper. Didn't measure but from photo it looks either 6 or 10mm2 CSA. Assuming that Captain Adiabatic tells me it's inadequate, when I call on supplier to upgrade, will they most likely replace with larger braid or put on a new sheath clamp with appropriate round cable? Many thanks, SW

 

[La Poste]

Thanks for that warning.

I just wonder what they will say about this when they see it.

Not fitted by me and apologies for hi jacking the thread.