spatialking323 posts
01-08-2021
7:09pm
I have read through this post and I noticed some folks here use both lines from the distribution panel. That is, line 1, line 2, neutral, and earth, such as would be wired when using the Southwire 10 awg, 3 wire. Since line 1 and line 2 are opposite in phase for North America (and anywhere else where split phase lines are used) that means hum is more likely to occur since the outlets are no longer identical polarization.
@spatialking
I suggest you reread the thread again. No one mentions using both Lines, legs, (therein a 120/240V multiwire branch circuit), to feed a single dedicated 120V branch circuit.
I think you misunderstood what @gs5556 meant when he recommended using 10-3 with ground Romex for a 120V dedicated branch circuit.
FWIW, 3 conductor with ground NM sheathed cable (Romex is a Trade Name of Southwire) is not designed/manufactured only for use for 120/240V multiwire branch circuits. 3 conductor with ground is also used for 3 way switching of lighting as well as split duplex receptacle(s) switching for table lamps. Top receptacle of duplex is hot all the time, bottom receptacle is switched by a wall switch.
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