Man cave earthing

[Ghost2011]

hi all I've got a man cave to get a supply to the earthing at the house is TNS, the man cave is steel frame, no spare ways in the house cu, it's a 30m run from meter to man cave, would you suggest a tt install or can I use the TNS, tt would be a pain to get the rods in ground as walls are underneath and ground full of Flint. Was going to split the tails at the meter I've already got swa in ground 3 core 16mm.

What would be best way for earthing in your opinion

Thanks

 

[Octopus]

What do you think is best? What are they planning to use in it?

 

[Ghost2011]

They are planning on using it for a chill out room so most should be a heater or 2. But I want to future proof I case they use it as anything else.

 

[westward10]

I would use the TN-S. Splitting the meter conductors would you lose the single point of isolation.

 

[bigspark17]

i would also use tn-s using the 16mm earthing conductor in the swa as bonding to the steel frame.

 

[Ghost2011]

Using the tns would save me a lot of hassle of trying to get a earth rod into the ground as it's solid. I was planning on putting a isolator next to where I split the tails for isolation.