I installed a 200 amp meter base and feed through panel on the exterior of a residential building and ran 4/0 ser to a 200 amp interior panel. Do I need to separate my neutral and grounds in the interior panel? I ran my #4 water pipe and my #6 ground rod grounds into the feed through panel.
sub panel or not
- Thread starter jbhindes
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davedottcom
Senior Member
Re: sub panel or not
Your interior panel is a sub panel fed from your exterior Meter/Main panel, yes you must seperate your grounds and neutrals in all panels after the exterior panel.
Dave
Your interior panel is a sub panel fed from your exterior Meter/Main panel, yes you must seperate your grounds and neutrals in all panels after the exterior panel.
Dave
paul
Senior Member
- Location
- Snohomish, WA
Re: sub panel or not
I concur.
I concur.
johndeereman
Member
Re: sub panel or not
Yes I agree too.
Yes I agree too.
- Location
- Windsor, CO NEC: 2017
- Occupation
- Hospital Master Electrician
Re: sub panel or not
Me too!
Where are we going again?
Me too!
Where are we going again?
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Re: sub panel or not
[ April 24, 2005, 08:49 PM: Message edited by: infinity ]
What is a feed through panel? Does it have a Main CB? And if you ran SER cable why would you even think about connecting the grounded and grounding conductors together at the panel?
[ April 24, 2005, 08:49 PM: Message edited by: infinity ]
davedottcom
Senior Member
Re: sub panel or not
A combination meter/main feed through panel has a meter socket, a main breaker that feeds a few circuit breaker spaces and also Lugs at the bottom which are what you use to feed the indoor panel. The Main breaker in the "feed through" panel is the point of disconnect therefore requiring all neutrals and grounds to be seperate after that point. SER is fine, just remove the bonding screw and keep the two seperate.
Dave
A combination meter/main feed through panel has a meter socket, a main breaker that feeds a few circuit breaker spaces and also Lugs at the bottom which are what you use to feed the indoor panel. The Main breaker in the "feed through" panel is the point of disconnect therefore requiring all neutrals and grounds to be seperate after that point. SER is fine, just remove the bonding screw and keep the two seperate.
Dave
davedottcom
Senior Member
Re: sub panel or not
Frank, the first sentence adds:
"...Except at the point of load terminations..."
Aren't the feed through lugs located at a point of load terminations?
Honestly, I'm not sure what that means!?!
Dave
Frank, the first sentence adds:
"...Except at the point of load terminations..."
Aren't the feed through lugs located at a point of load terminations?
Honestly, I'm not sure what that means!?!
Dave
paul
Senior Member
- Location
- Snohomish, WA
Re: sub panel or not
Originally posted by roger:
Well, there is no OCPD distinguishing this as a seperate feeder. It could be argued these conductors are just some long buss extensions, especially if they are in metalic conduit or tubing.
scott thompson
Senior Member
- Location
- Anaheim, California
Re: sub panel or not
I concur with Roger's statement here - please tell us in your opinion why couldn't this be the case.
Although the "Root Reason" behind what Roger posted in his last reply is known by myself and several others (a past thread brought up extreme "out of the box" thinking), I have a feeling the "Laughter" may be inverted in this case.
Not trying to start any trouble, just kind of on the same Hz as Roger.
Scott
I concur with Roger's statement here - please tell us in your opinion why couldn't this be the case.
Although the "Root Reason" behind what Roger posted in his last reply is known by myself and several others (a past thread brought up extreme "out of the box" thinking), I have a feeling the "Laughter" may be inverted in this case.
Not trying to start any trouble, just kind of on the same Hz as Roger.
Scott
physis
Senior Member
Re: sub panel or not
Alright, I know you're no slouch Rog. And I'm sure you've looked at this rather closely (you have brought it up before). But I will find where it doesn't work.
How bout 408.3(C) "Each switchboard or panelboard used as service equipment, shall be provided with a "main bonding jumper"".
250.28 "main bonding jumper shall be used to connect the equipment grounding conductor(s) and the service disconnect enclosure".
Not "service disconnect(s) enclosure(s)".
Can we have two main bonding jumpers?
Alright, I know you're no slouch Rog. And I'm sure you've looked at this rather closely (you have brought it up before). But I will find where it doesn't work.
How bout 408.3(C) "Each switchboard or panelboard used as service equipment, shall be provided with a "main bonding jumper"".
250.28 "main bonding jumper shall be used to connect the equipment grounding conductor(s) and the service disconnect enclosure".
Not "service disconnect(s) enclosure(s)".
Can we have two main bonding jumpers?
Re: sub panel or not
Sam, with the metalic raceways considered, why do we have "enclosures", (plural) in effect it is one.
Think of a buss duct with a service main at one end and 60' (or 160' if you want) away a set of branch circuit breakers as an integral unit within this duct assembly.
Why would this be different?
Roger
Sam, with the metalic raceways considered, why do we have "enclosures", (plural) in effect it is one.
Think of a buss duct with a service main at one end and 60' (or 160' if you want) away a set of branch circuit breakers as an integral unit within this duct assembly.
Why would this be different?
Roger
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