Electrical Ground Bus Bar

[Askarel27]

Is it mentioned in any standard to provide Ground Bus for Electrical in a Electrical room.
Can someone provide me standard reference regarding ground bus bar for electrical.

 

[7anoter4]

I don’t know a standard requiring a general ground bar in an electrical room. However, there are some standards requiring a ground bar in a switchgear or panel.
IEC Publication 60298 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kv and up to and Including 52 kV. Ch. 5.3 Earthing.
NEC [NFPA-70] ARTICLE 408 Switchboards, Switchgear, and Panelboards (C) Used as Service Equipment