Can anyone help me out with what code says or what any requirements are for grounding an indoor power supply that feeds only one amplifier (5ft away) and is wired with a grounded outlet plug?
I'm not looking for "It couldn't hurt" or "It's not a bad idea" but rather, is additional grounding REQUIRED and what, specifically, code says about it. Manufacturer recommends it but stops short of saying it's required.
Grounding requirements for indoor power supply
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