Can the ground cross with the neutral through the box?

[RichTes]

I have a metal NEMA 4x4 channel connected to a sub panel with rigid conduit. it has an L6-30, a 20 amp 220 and two 110v outlets.

Because the box is grounded by the conduit, is the neutral on the 220's crossing the neutral and ground by being screwed to the box?

Thanks,
Rich

 

[alfredeneuman]

Because the box is grounded by the conduit, is the neutral on the 220's crossing the neutral and ground by being screwed to the box?

Could you rephrase your question? As is it doesn't make sense.

 

[KenC]

Could you rephrase your question? As is it doesn't make sense.

to the OP: when rephrasing, include the detail that a 220/240 has no neutral.

 

[dave*99]

If I understand the question (that's a maybe).

OP is asking if he is inadvertently connecting ground and neutral via one of the receptacles.

Here goes:
The L6-30 should not connect to neutral so if wired properly that's ok.

The receptacle type for the "220" is not specified. If it is a 3 wire with ground receptacle and properly wired there is no problem.

If the "220" is a 2 wire with ground receptacle and the neutral is connected where ground belongs - then it is mis-wired.

As for the "110" If is is wired properly (Line, Neutral and Ground conductors) then no problem.

The place errors are made is when one connects the neutral to a ground terminal on a receptacle. The internal bonding in the receptacle then connects the (misplaced) neutral to ground.

I won't address the 110/120/220/240/115/230 detour. Just assume I got it wrong or right - whatever works for you.

 

[RichTes]

That last one says it. I’m concerned about the 20A 220 receptical since I have the white wire running to it from the neutral bar. Can I run from the ground bar instead? Will look at the link provided.

Here’s pics. The terminals are off the 220 in the middle now. Is there a different type of receptical I can use? My sander has that plug. The far left is a 50amp, just in case

https://imgur.com/gallery/hqUzePb

Thanks,
Rich

 

[mm08822]

The white wires you have run to each of the 3 left receptacles (240VAC) need to be replaced with green wires and terminate on the ground bar - not the neutral bar.

White wire can not used as a grounding conductor.

And what are the connectors used on the wires at the 3rd recept?

 

[rlitman]

I can't positively make out what those three receptacles are on the left, but I'm pretty sure that ALL three should have a ground, and not a white wire hooked up to them.

 

[dave*99]

The white wires you have run to each of the 3 left receptacles (240VAC) need to be replaced with green wires and terminate on the ground bar - not the neutral bar.

White wire can not used as a grounding conductor.

And what are the connectors used on the wires at the 3rd recept?

Exactly.

 

[wyliesdiesels]

Is this the only panel in the structure? If so, do you have a disconnect somewhere for this panel in the same structure? If not, then to be code compliant you cannot add any more branch breakers without adding a main disconnect.

 

[pattenp]

You should add insulating plastic bushings on the threaded ends of the conduit connectors.

 

[Bert_]

I can't positively make out what those three receptacles are on the left, but I'm pretty sure that ALL three should have a ground, and not a white wire hooked up to them.

This is your answer ^

 

[Citation]

Related question/thread hijack: Since we are talking about wire colors, as I recall, if you are using a white wire as a hot leg (say in a light switch circuit or a 240v L1 + L2 +G setup) you are supposed to put a band of black electrical tape around the ends to indicate it's hot. Is there a similar rule with ground wires?

I was about to say I can't think of a time when this would come up but I changed my mind. The circuit to my garage used to have a section that was 12/3 without ground (since replaced). As wired it was L1 tied to R and Bk, no L2. Neural tied to W. Ignoring other issues with how things were wired (and there were other issues) would it have been acceptable to say use the red conductor as a ground and wrap the ends with green electrical tape?

 

[RichTes]

Thanks for the responses. I'm traveling for work and can't take better pics so just had what is on the phone, but also why I had time to post.

The disconnect is the 100amp breaker in the main panel not far away (this is in the basement).

I used the black and red for the two hots to the 220 and then the white for the neutral/ground. Will switch that to green and run to the ground bar. Will look for the protective bushings too.

Took longer to make the holes in the plate for the receptacles.

Rich

 

[Bottlecapdigger]

Not sure about the US code but I think here in Ontario if the wire is #10 and larger the wire can be marked with green tape on the ends, and as someone else stated the grounds need to go on the ground bar not neutral bar. bcd