I want to ground some equipment that has only a 2-wire cord.

Is it safe to make a cable that has a wire connected to the earth pin of a 3-pin plug and use that as a grounding strap?

(This is NZ, but I guess the same would apply in most electrical codes).

  • Does this equipment have a "square-within-a-square" marking on it? Also, is it in a metal box or a plastic one? – ThreePhaseEel Nov 27 '16 at 23:19
  • 1
    In the US they sell grounding straps which terminate in the standard mains 3-prong plug, you know the one. Only the ground pin is connected to anything. – Harper Nov 28 '16 at 6:09
  • Metal, and double insulated ("square-within-a-square") - it's two SL1200 decks and a mixer. Which seem to act as a really good aerial to pick up mains noise. – Rich Nov 28 '16 at 6:13

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