grounding modular office trailer

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bark

Member
Location
Washington
I'm looking at a 4 piece modular office trailer. My concern is the grounding part. Each unit has it's own panel, fed from a 125 amp breaker from the service. My question: Will the office trailer require just one set of ground rods since all the frames will be electrically tied together? Each unit will be fed with a 125 amp circuit of their own.
 

david

Senior Member
Location
Pennsylvania
I'm looking at a 4 piece modular office trailer. My concern is the grounding part. Each unit has it's own panel, fed from a 125 amp breaker from the service. My question: Will the office trailer require just one set of ground rods since all the frames will be electrically tied together? Each unit will be fed with a 125 amp circuit of their own.

One set should be all that is required.
Not sure how it would be in compliance to supply a manufactured office trailer with more than one feeder
 

bark

Member
Location
Washington
There are 4 sections and each section has its own panel. We treat those panels as sub panels, fed from the service. A 400 amp service, two 200 amp panels and two sections fed from each panel.
 
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