We're finding a lot of this - no earth wire!
Mostly in light circuits, but every now and then...

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Who needs an earth wire to a socket outlet?

Or even the geyser (as long as it's bonded to something, right?)

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Just an earth line between the geyser earth point and the water pipes - I kid you not.

Pretty tempted to hunt down whoever issued the COC for the original installation on this one.