Sub-fed panels

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tom baker

First Chief Moderator
Staff member
Near here, on Puget Sound we have many sub panels at the Bangor Submarine Base.
Sub panels is a slang term, I prefer feeder panel.
Or maybe surface panel, as I was on a cruiser. We were called targets by the sub-panel types.
 

inspector 102

Senior Member
Location
Northern Indiana
I think the term would be load side equipment as referenced in 250.142(B). Sub-panels is a common term around here that means there is a separate panel located after the main service panel. Is there a more specific question to this post?
 

sguinn

Senior Member
Location
Blue Ridge, Ga
Does anyone think that it would be a bad idea for the NEC to add to the definitions "Sub-panel"? We all know what they are and have all probably used them. Sometimes I just don'getit.
 

wbalsam1

Senior Member
Location
Upper Jay, NY
I've always liked the term remote panelboard. Sometimes the remote panelboard is mounted adjacent to the main panelboard, but I still like the term remote. :smile:
 

iwire

Moderator
Staff member
Location
Massachusetts
sguinn said:
Does anyone think that it would be a bad idea for the NEC to add to the definitions "Sub-panel"?

No not a bad idea but is it actually necessary?

There is nothing special about a sub panel to the NEC.

A sub panel is no different to the NEC then any load side equipment.
 

jeff48356

Senior Member
The thing you need to remember is that with a subpanel, the neutral and ground bus bars need to be separate, and must be fed with 4-conductor cable (red, black, white, and ground). Panels come with a long green screw that is used to bond the neutral to ground. If the panel is used as a sub-panel, do not install the screw. On main panels, the neutral and ground must be bonded together.
 

JohnJ0906

Senior Member
Location
Baltimore, MD
sguinn said:
Does anyone think that it would be a bad idea for the NEC to add to the definitions "Sub-panel"? We all know what they are and have all probably used them. Sometimes I just don'getit.

Maybe define "Service Entrance Panel" or something similar. All panels are treated the same unless they are the main service disconnect, or SDS main.
 
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