I live in a new build house where the developers contractors have installed a junction box on the outside wall of my house that takes a feed from the consumer unit "Garage" RCD, and joins it to an underground cable that takes the power to my garage for lighting and sockets. What I would like to do is simply swap that junction box out for an outdoor socket, so the power uses the socket internal wiring as the junction box, and I can then plug devices into the socket like lawnmowers. Is that safe/permissable?
Thanks for coming back to me, the circuit breaker in the house consumer unit is rated at 16amps and the RCD is 32amps. The cable both into and out of the junction box looks like it is 2.5mm. There is a second box with breakers and RCD in the garage, immediately fed from the junction box. That unit has breakers for the light and sockets inside the garage.
Probaly the circuit is signed off as a dedicated circuit with the the garage supply , being designed as just those items to be fed in the garage only. I would not advise connecting up a socket outlet onto this junction box. you could seek the advice of a local registered electrician , with no obligation.
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