Bonding ct cabinet

Status
Not open for further replies.
N

newt

Senior Member
I was wirring up a ct service and noticed the cabinet was not bonded to service. I called inspector and he told me it doesnt have to be. I told him to look at 250.102. He still disagreed. I need a picture so he can see that it is wrong. The service is a 600amp parr. 500 alum. It comes from the transformer to a metal ct cabinet then the main all the conduits are PVC the sevice conductors pass threw donut cts the neutral just passes threw the cabinet no wires are terminated in cabinet(only my metering wires) Does anyone have a code picture of this instal so i can show this feller? thanks
 
Thanks for your help. Many times i see grounding electrode conductor run to our cabinets #4 and I really want to get this resolved.
 
newt said:
Thanks for your help. Many times i see grounding electrode conductor run to our cabinets #4 and I really want to get this resolved.
Click to expand...

Are you talking about using the grounding electrode conductor to do the bonding required in the section Bryan referenced?
 
sandsnow said:
We don't use CT cabinets here.
Click to expand...

What do you use?

Here if I need a CT cabinet the one that I get will have a bonded neutral terminal along with terminals for the ungrounded conductors and mounting pads for the CTs.
 
sandsnow said:
We don't use CT cabinets here.

Can you get them with bonded neutrals?
Click to expand...

The grounded conductor doesn't land here. It passes through. I take one GEC from the disco through each nipple back to the CT can.
 
iwire said:
What do you use?

Here if I need a CT cabinet the one that I get will have a bonded neutral terminal along with terminals for the ungrounded conductors and mounting pads for the CTs.
Click to expand...
Never seen this. I get a cabinet with racks to mount the CT's. No terminations except the bonding terminations I supply.
 
chris kennedy said:
The grounded conductor doesn't land here. It passes through. I take one GEC from the disco through each nipple back to the CT can.
Click to expand...

Must be a power company thing.

Here all metering equipment has bonded neutrals. We can only buy metering equipment from a list of power company approved model numbers and manufacturers.
 
iwire said:
Here all metering equipment has bonded neutrals.
Click to expand...

Hey Bob, Happy Halloween!

I have one being hooked up next week. I'll get pictures. POCO uses a crimp into my neutral for bonding/metering.
 
BOO!


Happy Halloween.

Page 39 top left of this pdf is one of the models we use, the neutral is at the top almost out of sight.
 
Our ct cabinets do not have a terminal bar for the neutral. Looks like we should order that type.
 
ct cabinet

ct cabinet

most folks here use what I think is called a "stud kerney"..basically a split-bolt with a stud attached. Strip the neutral(s) a few inchs and run thru the stud kerney. SOP in these parts.
 
augie47 said:
most folks here use what I think is called a "stud kerney"..basically a split-bolt with a stud attached. Strip the neutral(s) a few inchs and run thru the stud kerney. SOP in these parts.
Click to expand...
Sounds most conevient. Tried to google it. Is there another name for this?
 
Status
Not open for further replies.
Top