![]() ![]() Re: What size ground wire on a 50 amp 230V four wire circuit? - Gerald J.Re: What size ground wire on a 50 amp 230V four wire circuit? - bleedred : 10:33.4 AWG to 1 inch is the safest wire size for a 100 amp service panel. Depending on the service panel, different wire sizes are available. ![]() There is no additional derate, we already applied it with the heater You also dont need a wire size bump for distance. A minimum of 4-gauge wire and 1 1/4-inch conduit is allowed for 100-amp service. Add them up and that is 9500 VA or 39.6 amps. ![]() Re: What size ground wire on a 50 amp 230V four wire circuit? - Gerald J. The heater needs a 125 derate to 7500 VA, the 2000 VA table saw does not.The cable will be encased in PVC conduit. The garage is only 10 feet away from the house. Just trying to stay with code - Wizard : 09:46 I just dug an 18' deep trench from the house to my detached garage and Im about to run 3-gauge service cable for my new 100-amp sub panel.Re: What size ground wire on a 50 amp 230V four wire circuit? - sandhills427.110 : 09:09.Re: What size ground wire on a 50 amp 230V four wire circuit? - E718 : 08:33.What size ground wire on a 50 amp 230V four wire circuit? - Wizard : 08:31.I wired my 50amp outlets in my shop with 2x 6awg conductors, 1 6awg neutral, and 10awg ground. The size of your ground wire is determined by the size of your electrical service, and for a 100 amp service, the minimum ground wire size is 6 AWG. But in certain dedicated circuits it is code to reduce a neutral wire but never smaller than your ground. It requires you to calculate the highest possible unbalanced load and size the neutral accordingly. Sizing a neutral is a bit more complicated on size reductions, and is generally not a good idea when wiring receptacles as you are not always sure what might get plugged in. Your conductors need to be 6awg and your ground needs to be 10awg per nec code for a 50a circuit.ฤก0awg (copper ) equipment ground is code for 30-60amps Posted 10:27 (#3563187 - in reply to #3562786) Subject: RE: What size ground wire on a 50 amp 230V four wire circuit? What size ground wire on a 50 amp 230V four wire circuit? ![]()
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