Ground and Neutral under same lug?

[steveray]

I know (or at least I think I do) that they can't do this, and for the life of me I can't find it right now....Res service, branch circuit wiring,(14ga and 12ga NM) I know they don't have to be seperated (not a subpanel)...but I can't find the section for under the same screw....Thanks!

 

[jwelectric]

408.41 addresses the neutral. EGCs can be as outlined in the panel and some will allow 3- #14 and 2 #12 each

 

[Dennis]

Remember that this is a fairly new addition to the code and was allowed in earlier version. I only go back to the 2005 with my code books so it was before then but not sure when.

 

[Dennis]

I just did a search and apparently it wasn't code til 2002 addition

 

[raider1]

I just did a search and apparently it wasn't code til 2002 addition

It wasn't code but it was part of the listing of the panelboard. The UL Whitebook for years had information that no more than 1 neutral conductors could be landed under a lug in a neutral bus.

Chris

 

[Dennis]

It wasn't code but it was part of the listing of the panelboard. The UL Whitebook for years had information that no more than 1 neutral conductors could be landed under a lug in a neutral bus.Chris

I didn't know that- thanks Chris

 

[raider1]

Your welcome Dennis.

 

[SCBO1]

Just a clarification: 3-14 ga under same lug and 2-12ga under same lug but they can't be mixed together 1/12ga with 1/14ga, correct?

pc1

 

[steveray]

That is the section I was looking for.....I was just drawing a blank at the time.....Thanks!...

408.41 addresses the neutral. EGCs can be as outlined in the panel and some will allow 3- #14 and 2 #12 each

 

[jwelectric]

Just a clarification: 3-14 ga under same lug and 2-12ga under same lug but they can't be mixed together 1/12ga with 1/14ga, correct?pc1

correct .

 

[gfretwell]

The real answer is on the label of the panel you are inspecting/installing.

Some ground buses will take up to 3 wires.