- Reaction score
- 240
Hello.
I am carrying out an inspection on a domestic TN-S system. First observation is that I can see 16.0mm earthing conductor fro CU to MET - but then is steps down to 6.0mm connecting to the supply cable.
This should be 16.0mm - shouldn't it? I am going by table 54.7 in the big yellow book.
Sorry if this has been asked before.....
I am carrying out an inspection on a domestic TN-S system. First observation is that I can see 16.0mm earthing conductor fro CU to MET - but then is steps down to 6.0mm connecting to the supply cable.
This should be 16.0mm - shouldn't it? I am going by table 54.7 in the big yellow book.
Sorry if this has been asked before.....