I have 2x 13 amp plug extensions running from house to shed for electric use. All sleeved including a power lead 13amp. I want ti connect 2 extensions & the pwer supply from a plugged in door socket to a ND42 weather proofoutdoor double switch with a light indcater. Can you please tell me where i put all earth, live & neautal wires?

Jim, October 2021

You get a qualified electrician to do it. It is no longer legal to perform DIY on fixed wiring. You will have trouble selling your house if you can't produce a certificate covering any electrical modifications.

Fghvc, October 2021