Can I add a socket to my boiler power circuit?
The wording of your question is very confusing. If there is a wall receptacle near where she wants to charge her stuff, just buy an adapter that plugs into a wall socket. If the socket is too far away for her charge cords, go to a store and buy a longer charge cord. I have charge cords 10 feet long just for that purpose. If this does not solve your problem try to give a better explanation of what you want to do. Hope this helps.