If the new circuit is for sole use for the external lighting, it will not require a FCU providing the circuit is cable and fused rated correctly. But you will still require RCD or mechanical for buried cables(as my previous post), this can be done be either the use of earth protected cable, a RCBO or a RCCB with MCB, if the latter I would still install a double pole isolation switch for the external light, to prevent power loss on other circuits if outside light becomes faulty.The socket can be knocked out from the CU, does that mean the spur off will automatically fall under the same protection?
No - you'll need an FCU before the socket.Considering the above and comments from before, i should be ok to run to a FCU switch then on to the external light - correct?
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