Earthing with solid rock below surface - burying tape for lightning earth

[Marvo]

When bedrock is the enemy Ufer earthing is your friend.

 

[nicebutdim]

 

[Rockingit]

When bedrock is the enemy Ufer earthing is your friend.

0.17Ω (Ze) is my PB on a TT - and that was an Ufer ?

 

[Robson689]

I don't think this has a large enough surface area for what's required. The minimum lattice mat or solid plate size is 600x600 for lightning conductors and there isn't any guidance for things like this.

 

[nicebutdim]

I don't think this has a large enough surface area for what's required. The minimum lattice mat or solid plate size is 600x600 for lightning conductors and there isn't any guidance for things like this.

I was thinking along the lines of the stuff being used in addition to other means of earthing to increase area and help reduce Ra

 

[Robson689]

I was thinking along the lines of the stuff being used in addition to other means of earthing to increase area and help reduce Ra

Don't get me wrong it probably would help. I just have a biased opinion to the traditional methods and I honestly haven't tried anything else. All we use is rods, mats, ring tape or foundation earthing. It's not an industry that modernises quickly unfortunately.