- Location
- Windsor, CO NEC: 2017
- Occupation
- Service Manager
2008 Cycle.
So I'm dealing with a 800A generator supplying an optional standby system at a data center. The neutral is switched at the ATS, making this a Separately Derived System. The generator is outside in a bricked-in enclosure alongside the RTUs. It is about 20' from the building it serves.
There is no structural steel within the building (the ceiling is held up by three isolated steel trusses), no metal water pipe.
There was a suggestion to route the generator's GEC to the 800A utility service disconnect, and another suggestion to drill a hole in the concrete pad at the generator and drive a ground rod.
How would you handle this?
So I'm dealing with a 800A generator supplying an optional standby system at a data center. The neutral is switched at the ATS, making this a Separately Derived System. The generator is outside in a bricked-in enclosure alongside the RTUs. It is about 20' from the building it serves.
There is no structural steel within the building (the ceiling is held up by three isolated steel trusses), no metal water pipe.
There was a suggestion to route the generator's GEC to the 800A utility service disconnect, and another suggestion to drill a hole in the concrete pad at the generator and drive a ground rod.
How would you handle this?