earthing in stables

[sidekick]

A new stable block is now being wired on TT system with use of an earth spike.
As all extreneous conductive parts should be earthed I intend to earth 4 or 5 steel beams in the building.
However, each stable door and door frame is now clad in galvanised steel and each stable has a window with steel frame and bars.
Do all these parts need earthing? Having assumed they do, I have now advised customer who is insistant that they do not want earth wire every where.
Regards
SIDEKICK

 

[Guest123]

Hi there.

There is no need to earth any windows or doors. Any services gas/water etc, and structural steel is enough.