Timeline for Using Chassis as a conductor for DC Power Supply Return

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when toggle format	what		by	license	comment
Jul 25, 2018 at 6:10	comment	added	Transistor		Thanks, @Jack. I had made that point in some of comments on other answers and then muddied my answer with the addition of Figure 1a. Un-muddied with addition of 1c.
Jul 25, 2018 at 6:08	history	edited	Transistor	CC BY-SA 4.0	Added Figure 1c, etc.
Jul 25, 2018 at 3:03	comment	added	Jack Creasey		Grounding at two points as shown does NOT create a ground loop. To create a ground loop you would need a Gnd wire between the two units as well. It is however never good policy to used a frame or sheet metal cover to carry current. It typically has bolted connections which need to be tightened and the metal is a poor conductor compared to wire (which is why you get loops when you have multiple connection point). It is good design to carry a ground wire back to a common point on the frame/chassis, typically near the AC mains entry point.
Jul 24, 2018 at 22:00	history	edited	Transistor	CC BY-SA 4.0	added 25 characters in body
Jul 24, 2018 at 21:48	history	answered	Transistor	CC BY-SA 4.0