jar546
CBO
What you see is what you get.
-
Welcome to The Building Code Forum
Your premier resource for building code knowledge.
This forum remains free to the public thanks to the generous support of our Sawhorse Members and Corporate Sponsors. Their contributions help keep this community thriving and accessible.
Want enhanced access to expert discussions and exclusive features? Learn more about the benefits here.
Ready to upgrade? Log in and upgrade now.
NEC Code Compliant? What say thee
- Thread starter jar546
- Start date
Mr. Inspector
SAWHORSE
NO
Those busbar lugs are typically only listed for 2 conductors. 110.3(B)
One could argue that the wires are twisted together to be a single conductor, and therefore may comply. The response is to ask what size this alleged conductor is, and if the busbar is listed for that size of wire. My guess is that the terminal is not listed for conductors "somewhere between an 8 AWG and a 4 AWG in size", so therefore 110.3(B) again.
The main reason that this is a bad thing is that if you ever need to adjust one of the grounds in that bundle, you are going to have to unbraid the whole thing to get there. Electrically, there is no issue.
One could argue that the wires are twisted together to be a single conductor, and therefore may comply. The response is to ask what size this alleged conductor is, and if the busbar is listed for that size of wire. My guess is that the terminal is not listed for conductors "somewhere between an 8 AWG and a 4 AWG in size", so therefore 110.3(B) again.
The main reason that this is a bad thing is that if you ever need to adjust one of the grounds in that bundle, you are going to have to unbraid the whole thing to get there. Electrically, there is no issue.
I don't like that, for the reason if the sparky had a solid wire "What would he have done?"
There is a lug tap adapter that could be installed under the smaller bus lugs that would allow for a larger wire connection.
Also how many conductors are permitted under the bus lugs per panel requirements? Typical panel allows two same size conductors depending on size.
There is a lug tap adapter that could be installed under the smaller bus lugs that would allow for a larger wire connection.
Also how many conductors are permitted under the bus lugs per panel requirements? Typical panel allows two same size conductors depending on size.