Earth Ground on Welding Table

We have had trouble where I work and there is two welding tables in close proximity. The weldor forgets which table the ground is connected to and runs the welder on the other table, it usually tries to work but doesn't run well. The 110 and 480 plugs that are mounted to the tables usually suffer wire damage.
The fix in our situation was to bond all the tables to one another, so no matter where you start you'll be grounded to the machine.

If you are going to hang a panel in your shop make sure you separate the neutral and ground in the panel, don't tie them together. They should only be tied together at the main panel on your home, where the power comes off the pole.

Moonlight ----- we had the same issue at our shop with a grinder, we let the "Black Smoke" out !!

Grits--- put the box on the wall and run the cord to the table, you need to check codes in your area , don't just ground "everything" including the neutrals.

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sedanman wrote:What we refer to as the ground when welding is more accurately a return path. Neither lead on your welding machine has any path to the supply ground. In single phase a/c wiring there are one or two hot wires, a neutral, and a ground. Neutral and ground share a single common connection at the main service panel only. Neutral and ground serve different functions. Neutral is connected to the center tap of the transformer and serves to divide the 240 volt transformer into two 120 volt transformers. Ground is connected to the earth. Single phase a/c circuits will work with with either one hot lead and the neutral (120 volt) or two hot leads (240 volts). The ground is not needed for the circuit to function. The ground is there for safety. A ground is an electrically conductive material driven into the ground, it can be a water pipe. If grounding a welding table had any I'll effect, we would have problems welding things that we naturally grounded, like fence poles or pipelines.

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If grounding a welding table had any I'll effect, we would have problems welding things that we naturally grounded, like fence poles or pipelines.

The part on the other forums or internet searches always brings up the term "ground loops". Mix that with HF and that is a little confusing. I have already dealt with that subject when I ran underground CAT5E from the house to the workshop. I learned a bit from the APC people because I was using a couple of their CAT5E surge protectors on both ends of the wire thus could have messed up and used the ground from the house on one end and the ground from the workshop on the other. I ran a separate ground in the pipe to utilize only one ground for both ends. But with welding equipment I like to avoid all shocks.
Thanks,
electrode

Good explanation. I already know most all that stuff you mentioned above, but the last sentence clears thing up:The part on the other forums or internet searches always brings up the term "ground loops". Mix that with HF and that is a little confusing. I have already dealt with that subject when I ran underground CAT5E from the house to the workshop. I learned a bit from the APC people because I was using a couple of their CAT5E surge protectors on both ends of the wire thus could have messed up and used the ground from the house on one end and the ground from the workshop on the other. I ran a separate ground in the pipe to utilize only one ground for both ends. But with welding equipment I like to avoid all shocks.Thanks,electrode

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