Does Anything Look Odd with this Service?

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This is the supply from outside to the inside of the building, a large service.

Does anything look odd?

DelawarePumpHouse_470724.jpg
 

480sparky

Senior Member
Location
Iowegia
Not really sure, but the phase markings above the terminals apprear to be N-3-2-1. Reverse rotation?

Also, there's some 'spare parts' in the far end of the cabinet.
 

whillis

Member
Location
Vancouver, BC
I'm with Jim. It could be that the majority of the loads do not require a neutral so a derating was applied. If this is the case I sure hope the building isn't re-purposed without someone looking at the service!
 

jim dungar

Moderator
Staff member
Location
Wisconsin
Occupation
PE (Retired) - Power Systems
Without knowing the service requirements it is not possible to pass judgment on the single 'grey' conductor. If this is a high impedance grounded system, the single grounded conductor is allowed to be run separately from the phase conductors.
 

nakulak

Senior Member
ok, if that is the neutral, and its not high impedance, and I am counting 9 other conductors, then the neutral does not meet the 12.5% rule.
 
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