400 amp service drawings or diagrams

Status
Not open for further replies.
Re: 400 amp service drawings or diagrams

Chris,
I checked the base I had on hand, & it was exactly the same.. there's definitely something missing in these bases. They usually have a bar that has stud bolts on each end...We must've got a shipment that were all like that.
Sorry, but it looks like a triple lug would be best for the Neutral connections.
 
Re: 400 amp service drawings or diagrams

I appreciate the offer Larry but I was only wondering if it's doable without web space. I might even have some, I don't know. But thanks. :)
 
Re: 400 amp service drawings or diagrams

Back to the subject:

Is this utility provided equipment that wont work?
 
Re: 400 amp service drawings or diagrams

Originally posted by luke warmwater:
Hey Bob (Badger),
do you think the Service Conductors are a violation in the above pic??
Click to expand...
It took me a while of thinking to figure out what you where asking me. ;)
 
Re: 400 amp service drawings or diagrams

I've overbended and have never been called on it even with an inspector on a mission.
 
Re: 400 amp service drawings or diagrams

Is there anything wrong with using a triple lug on this application. I've never seen a triple bolt. Do they actually make one? Thanks
 
Re: 400 amp service drawings or diagrams

Also the romex and the ground wires need to be protected from pysical damage. Especially the Romex.
 
Re: 400 amp service drawings or diagrams

Originally posted by aelectricalman:
I have a double lug on the neutral already. When the poco came to hook it up they said they didnt have a place to tie their neutral. There is only 1 neutral screw for to double lug to tie into (Line and Load is same screw). Is there a triple lug that I need to get so the poco can tie in also?
Click to expand...
My 400A meterbase has lugs that can accept two wires per lug in a single hole. Look at the labeling on the lugs and see if there is something like this:

#4 - 600 MCM
(2) #6 - 250 MCM

The (2) is the key that you can put two wires in the same hole. Mine said you must use the same material (al or cu) and same size wires.

We're not allowed to ground to the meterbase in my area, but I don't think I could have anyway without some other type of lug. Consider grounding from one of your disconnects instead.
 
Re: 400 amp service drawings or diagrams

Originally posted by aelectricalman:
Also the romex and the ground wires need to be protected from pysical damage. Especially the Romex.
Click to expand...
That's your opinion. In my area these cables and conductors are considered not exposed to physical damage.
 
Re: 400 amp service drawings or diagrams

Im sorry, I did not mean to offend you if I did. I actually think the installation looks good. I like it, I was just in the groove of anylizing someone elses work. You know how it is. However, it was my understanding that the Romex has to be protected from once it drops below 6 ft. to floor level in a basement. Or, is the running board what makes this legal. Have I always been wrong? Can someone recite the code is so? Thanks.
 
Re: 400 amp service drawings or diagrams

Originally posted by aelectricalman:
... it was my understanding that the Romex has to be protected from once it drops below 6 ft. to floor level in a basement. Or, is the running board what makes this legal. Have I always been wrong? Can someone recite the code is so?
Click to expand...
?334.15(B) states that it needs protection from physical damage where necessary. The section does not ellaborate where "necessary" is, except to say that within 6 inches of the floor it must have this protection. It has always been up to the local guys to come up with areas and measurements that they feel that romex needs physical protection. Apparently, 6' a.f.f. is the rule in your area, which sounds perfectly reasonable to me. It's just not in the code.
 
Re: 400 amp service drawings or diagrams

And I thought you forgot about me. :D

Edit: So what do they have to say about not providing themselves a spot on the buss then?

[ May 31, 2005, 01:04 AM: Message edited by: physis ]
 
Re: 400 amp service drawings or diagrams

We use two different 400 amp meter bases,the first being a 320/400 amp base double lugs on load side that just fit and we install single 350 mcm lugs for poco.
Second s a full sized 400 can double lug the 2 phases and stack a double and a single for the neytral,these are supplied by the poco fpr free :D
 
Re: 400 amp service drawings or diagrams

Originally posted by iwire:
It took me a while of thinking to figure out what you where asking me. :cool:
Remember that discussion? I didn't have a picture then.

I don't have a picture of the 400amp meter can. And this has since been energized.
I'll try to get one of a 320 can todaay.

The supply house didn't supply bushing, so he didn't install them. When asked, he said that another guy told him PVC adapters don't require bushings.

As for the protection of the wires, the service will be in a utility closet, whereas it would be hard to find extreme phisical damage to the wires. In the States and areas that we work in, it has never been an issue.

To open another can of worms, the NM on the right goes down and enters a 3/4" EMT and sleeves along the concrete wall to the right for 3ft. to the sump pump outlet.
Click to expand...
Click to expand...
 
Re: 400 amp service drawings or diagrams

Originally posted by luke warmwater:
The supply house didn't supply bushing, so he didn't install them. When asked, he said that another guy told him PVC adapters don't require bushings.
Click to expand...
Uh...

You're taking code advice from a parts-guy, Todd?

Admittedly, I question the NEC's requirements on the matter, but I do believe the NEC (perhaps unwittingly) requires it. :)
 
Re: 400 amp service drawings or diagrams

Mornin' George.

No, the supply house just didn't have them in the order. (forgot, or over looked).

Now, how about a SE connector. Do you think that they would require a bushing also when 4/0 SEU enters a panel?

The EMT issue was just that there are some who think you can't run NM through a piece of EMT. You know the debate. :)
I, for one have no problem with it.

Off to Dunkin D's now.
 
Status
Not open for further replies.
Top