Hi, thanks in advance for your input. I've got a job coming up that requires routing a 125A feeder to a modular building inside a large warehouse. The building is coming pre-wired from the factory with a 125A main panel. Any recommendations on grounding? It's a steel framed structure inside a large metal building. Do I need to worry about bonding anything else besides the frame of the structure?
Indoor modular building grounding.
- Thread starter danger30
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masterinbama
Senior Member
- Location
- Huntsville Alabama
I see no reason to use anything other than an equipment ground sized to the OCPD. We wired several of these in a local engine manufacturing plant.
- Location
- Massachusetts
IMO bonding it to building steel will cover that issue. :smile:
Pierre C Belarge
Senior Member
- Location
- Westchester County, New York
For the installation as described by the OP, I do not see the need for a grounding electrode or GEC. If there was a service installation for the manufactured building, that would be different.
The EGC installed with the feeder is all that is most likely required. I say it depends on how the panel enclosure is mounted to the M. building.
The EGC installed with the feeder is all that is most likely required. I say it depends on how the panel enclosure is mounted to the M. building.
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