Connection of outbuilding

you really need a type S rcd to get disrimination

but they are insanely priced
 
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It is 2.5sq SWA Which is rated for 42A in britain (i think). 45A here when burried directly in the grownd.
 
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Ban

Think those are the figures for XPLE.

BR

RCD protection for the cable is a good idea. 100mA at the house and 30mA at the business end for final circs.

Plug

All this b*lls about connecting the spade with the armour is total tripe...the cable should be buried 400mm down in duct, with warning tape above it. This will prevent a spade even getting a sniff of the cable.

Surely that has to be better than relying on your half-baked theory about contact between spade and earth for safety?

The whole point about burying cable is that it should be done with a view to avoiding damage to that cable. If it can't be seen, it should be out of harm's way.
 

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