server connections

[Electro-tech]

If continuity of the earthing conductor was lost the server cabinet or associated metal work if earthed would be carrying as you say 60ma. So if metal work touched and passed through somebody to earth they would get a shock.If all metal work is bonded then the shock potential will be the same wherever touch is possible.However if you have satisfied the Regs 543.7.1.2 etc ,adding a 100ma can only help the situation.Also, as long as this 60 ma leakage current is not adding to leakage at the Main Earthing Terminals and other points where the shock potential could occur in another part of the building. Maybe a earth continuity monitoring system would guarantee connection to earth.