Building connected to outdoor power supply

How do I supply electricity to a garden building?

To provide electricity to an outdoor building, such as a shed, garden office or summer house, you must run an armoured cable from your main house supply to the external building. Ideally, this cable should be buried underground (usually 600mm deep) and connected to a new consumer unit installed in the garden building.

Do I need an electrical supply to a detached outbuilding?

Supply to a detached outbuilding | Technical advice by... Many domestic premises have one or more detached outbuildings such as a garage, garden shed or greenhouse, that require an electrical supply from the installation in the house for lighting or small power.

How much power does an outbuilding need?

What you plan to do in the outbuilding will dictate the power required. If all that is needed is a socket or two and some lighting, then the power requirements are fairly modest, a 13A supply would probably be more than adequate.

What type of cable is recommended for running power to an outbuilding?

If the outbuilding isn’t more than 50 ft. from the house and has a few lights and outlets, it usually can be supplied by a 120v, 20-amp circuit and 12/2 w/grd UF cable. But check with local building authorities before you start. Get the necessary permit, code requirements, and inspection schedules.

How do you wire an outbuilding?

The first step to wiring an outbuilding is to figure out how many lights and outlets you need. If your needs are modest, you may be able to tap into an existing outlet in the main house and extend the circuit from it. Calculate the total loads for the existing circuit and the extension to see if the circuit has enough capacity.

Can you install electricity outside?

From running electricity to a shed to installing armoured cable for a garden office, we’ve carried out a range of outdoor electricity projects. To provide you with some detail on the process of installing electricity outside, whether that’s for outdoor lighting or a much larger project, below is everything you need to know.