I've got main and equipotential bonding, all more-or-less in accordance with the 16th (close enough so that I'm not worried about anything 
).
I've got what looks like a TN-S system, and I note that the earth connection that goes from my earth block to the sheath of the incoming cable constists of 2 uninsulated, unprotected multistranded conductors. It looks like each conductor has an overall area of between 2.5 and 3 sq mm, and it just runs "in mid-air" (i.e. not clipped to any surface) for about 100-120mm.
Firstly - is this some of MB's favourite cable? (it's a 1950s house)
Secondly, should I get the supplier to replace it? I'm not sure that its lack of physical protection is a Good Thing, nor its small size in comparison to the rest of the earthing in my installation.
Thirdly, if #2 is yes, is there anything (supply regulations?) which make them obliged to replace it at their expense?
).I've got what looks like a TN-S system, and I note that the earth connection that goes from my earth block to the sheath of the incoming cable constists of 2 uninsulated, unprotected multistranded conductors. It looks like each conductor has an overall area of between 2.5 and 3 sq mm, and it just runs "in mid-air" (i.e. not clipped to any surface) for about 100-120mm.
Firstly - is this some of MB's favourite cable? (it's a 1950s house)
Secondly, should I get the supplier to replace it? I'm not sure that its lack of physical protection is a Good Thing, nor its small size in comparison to the rest of the earthing in my installation.
Thirdly, if #2 is yes, is there anything (supply regulations?) which make them obliged to replace it at their expense?
