Is this a problem???

[Buck Hartley, CMI]

The local sparky and the local AHJ says these double taps are not a problem.

[Jim Port]

Sounds like at least two more people need a Code update class or read the label inside the panel.

[James F. McKee]

so they are kidding ...right?

[Christopher Currins]

ARTICLE 408 Switchboards and Panelboards

408.41 Grounded Conductor Terminations.

Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.

Exception: Grounded conductors of circuits with parallel conductors shall be permitted to terminate in a single terminal if the terminal is identified for connection of more than one conductor.

[kluce]

It hard to say what you are talking about since everything looks good.

If you are talking about the neutral and ground wires, it's fine.

[Jeffrey R. Pope]

Originally Posted by kluce

If you are talking about the neutral and ground wires, it's fine.

In what part of the world would that be? Even the panel listing will tell you this is wrong. . .

[kluce]

Two hot wires are not allowed.

Two neutral wires not allowed.

But a neutral and a ground from the same circuit, why not?

[Jeffrey R. Pope]

It's specifically prohibited in the NEC, and is in direct contradiction with the listing of the panel.

[kluce]

Still don't know what is the worst thing that can happen.

Around here it is considered an acceptable practice. I don't know one city inspector that will call it out.

I'm so use to seeing this type of installation around here that I never questioned it. I though I seen in the NEC that a neutral and ground are allowed. I'll have to look.

[mnahrgang]

Originally Posted by kluce

Still don't know what is the worst thing that can happen.

Around here it is considered an acceptable practice. I don't know one city inspector that will call it out.

I'm so use to seeing this type of installation around here that I never questioned it. I though I seen in the NEC that a neutral and ground are allowed. I'll have to look.

Acceptable practice???? Um....do the letters "BS" mean anything to you?

[kluce]

Originally Posted by mnahrgang

Acceptable practice???? Um....do the letters "BS" mean anything to you?

The picture in question are not two neutrals. They are a neutral and a ground wire.

I agree that two neutrals are not allowed and clearly noted in the NEC. City Inspectors around here would also not allow that kind of installation.

[Jeffrey R. Pope]

Originally Posted by kluce

I agree that two neutrals are not allowed and clearly noted in the NEC.

The NEC says nothing about two neutrals;

408.21 Grounded Conductor Terminations. Each grounded conductor shall terminate within the panelboard in an individual terminal that is not also used for another conductor.

The panel listing allows for 1 neutral per termination, and up to 3 grounding conductors per termination.

[kluce]

Trying to get a home inspection report done so I don't have time now to look it up.

Originally Posted by kluce

Still don't know what is the worst thing that can happen.

Still don't know what the worst thing that can happen.

[Patrick Bolliger]

In general terms:

I believe it has to do with the "clamping pressure" of the terminal screw with respect to surfaces and a "current" carrying conductor. Normally the Grounding conductor is NOT carrying current (in a perfect world ,its a "safety") so they can be grouped per NEC up to three per termination as Jeff P. has posted.

If you add two "conductors" such as the Grounded (neutral, current carrying) conductor and a Grounding conductor under one terminal it maybe possibly to not properly "fastened" or properly apply correct pressure on the conductors for proper amperage (current) to pass on a smaller surface area due to clamping screw making less contact on the two conductors. Proper torque or pressure on the conductor also determines the amperage at that point. Think surface area and current with respect to responsibility of the conductor.

[Doug Edwards, CMI]

Here, read this. It will "esplain" it.

http://static.schneider-electric.us/...0100DB0705.pdf