Earth bonding metal balcony

[JosephandAmber]

Last year I had a large cast-iron balcony constructed with steps down into my garden. The balcony is bolted into the walls and also into the pavement where it meets the garden. Is there a requirement to earth this? If so, should it be a separate 10mm CPC direct to the CU or could I link it to the 6mm CPC currently protecting the garden sockets?

View attachment Screenshot 2020-04-30 at 15.35.10.png

 

[Jurassic Sparks]

I would think the proximity to the ground, and anchors into the wall will more than make a good earth, unless you are planning on running some high voltage power system through it, its parts of the building surely

 

[radiohead]

No requirement to either earth or bond the said item. Earthing and bonding are not the same thing by the way.
Nice job!