I need to have mains (230V) outside the house, at a remote part
of the garden, and would like to know if this solution is (a) safe
(b) feasible (c) legal [intimate knowledge of NZ law assumed !!]

I have plenty of 2-core mains-rated cable - obviously no earth. At
the remote end the circuitry will be in a metal box. If I use an RCD

http://en.wikipedia.org/wiki/Residual-current_device

(which I do when working with tools outside), bang a metal stake
into the ground, to which the metal termination box is connected, and
put a fuse on Active, is this going to pass muster wrt not killing
people (especially me) ?

TIA

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