Replacing existing 400 amp service with a 600 amp service

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frofro19

Senior Member
Location
VA.
Occupation
Master Electrician
Upcoming project. Replacing an existing 400 amp service with a 600 amp service on a dairy farm. Removing existing 400 amp meter base and replacing with CT cabinet with meter installed on right side if CT cabinet.
Planning on installing a trough above cabinet extending over the left side. Coming out of cabinet to a 600 amp service rated ATS and then over to a 600 amp exterior MDP to feed the 3- 200 amp panels. All 3 panels should have a calculated load of less than 180 amps each and the existing 2 panels have 4/0 AL ungrounded wires. And 2/0 EGC. Coming out of ATS with #6 copper to 2 ground rods.
Does all this look correct? Or am I'm missing anything?
 
Sounds good so far but is there a metal pipe that is an electrode or do you need to bond any water lines. If that was done the grounding electrode conductor will probably need to be upsized
 
Dennis Alwon said:
Sounds good so far but is there a metal pipe that is an electrode or do you need to bond any water lines. If that was done the grounding electrode conductor will probably need to be upsized
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I don't believe there is. Going tomorrow to check things out. If so, I'll upsize the EGC.
 
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