I am going to be moving 2 manufactured building and need to install one service feeding them. These are not dwelling units and are going to be used as office spaces at our plant. The first building is going right near the service and has a 100a single phase panel in it. The other building has 2 - 200amp panels in it and is approx. 350' away. I am thinking to install a 600amp service disconnect and run to a trough and then tap onto a 100amp disconnect along with a 400amp disconnect. From there run a 400a feeder to another 400amp non-fused disconnect and tap to 2 - 200amp fusible disconnects to feed the second building. I know this is confusing and I thank you in advance for the responses.
Service size calculation
- Thread starter rockman33
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- Location
- Lockport, IL
- Occupation
- Semi-Retired Electrical Engineer
I think this would meet code requirements. Someone with contracting experience might be able to suggest less expensive alternatives.
Are these manufactured buildings or manufactured/mobile homes used as office space? Articles 545 and 550 requirements are, shall we say, radically different.
As long as they are not technically mobile home used as office space, the external, not on or in disconnecting means not more than 30' rule does not apply. If the 2 - 200A panels have a main circuit breaker, the 2 -200A fused disconnects are not required... and this includes no need for far end 400A disconnect Gus mentioned. Just run the 400A feeder to a j-box and tap to 200A MCB panels... that is if they are MCB.
As long as they are not technically mobile home used as office space, the external, not on or in disconnecting means not more than 30' rule does not apply. If the 2 - 200A panels have a main circuit breaker, the 2 -200A fused disconnects are not required... and this includes no need for far end 400A disconnect Gus mentioned. Just run the 400A feeder to a j-box and tap to 200A MCB panels... that is if they are MCB.
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