Earthing a Domestic Fusebox

[Coaster]

Can someone remind me what thickness of earth cable is required to earth the fusebox to the MET?
I did have the info. but can't flippin find it.
Also not sure what rating the main fuse is. Is there any way of finding out/calculating its rating without taking it out?

 

[ColJack]

16mm² ( assuming you have 25mm² tails )

 

[GaryMo]

Also not sure what rating the main fuse is. Is there any way of finding out/calculating its rating without taking it out?

Call your DNO but you'll probably be wasting your time.
There's no way to calculate.

 

[ban-all-sheds]

Can someone remind me what thickness of earth cable is required to earth the fusebox to the MET?
I did have the info. but can't flippin find it.

There are obvious entries for it in the indices of both BS 7671 and the OSG.....