Zeroing server racks

Question

Server equipment

Dear friends, today I would like to ask you:
How much is it really necessary to zero server racks?
There are different racks: servers are spinning on some, and only ciscos are hanging in some, they are located in completely different rooms and even different buildings
. touch some new expensive equipment, but nevertheless there is a question of the need to "dripping on the brains" of the authorities.

Answer 1

Grounding is done for safety purposes, if you value your life, then “drip” intensively.
If the organization is serious, then it should be interested in this.

Answer 2

Of course, you need to ground!
Firstly, it is the safety of people (potential equalization on metal structures).
Secondly, equipment protection (against discharges and electromagnetic pickups).
Thirdly, improving the quality of the signal (with a normal ground, zero is really zero, without any interference).

Answer 3

So zeroing or grounding? As I understand it, according to the standard, you still need PE. And its existence is primarily a security issue.

Answer 4

habrahabr.ru/post/144464/ very detailed material on the topic of grounding.