Question:

How do i connect my shed to my house power supply

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there is a 220/240V cable running down to where the old shed used to be, i'd like some sockets in there, but don't know how to wire it up

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  1. First, you don't know what condition the old cable assembly is in; replace it.

    The NEC requires any accessory building with more than one circuit to have a grounding electrode at the building. Also, the minimum ampacity for 2 circuits to an accessory building is 30 Amperes; if you want to have more than 2 circuits, you must supply at least 60 Amps to the sub-panel. You must have a means of disconnect at the shed.

    Changing the ampacity of the circuits will require changing the conductor sizing.

    Call a qualified, licensed Electrical Contractor.


  2. You need help

  3. Don't try and do a job you don't know how to do. Especially if a mistake could cost you your life. Get someone that knows how to do it. While they are doing the job, you could be doing something you do know how to do and everybody can live happily ever after.

  4. you best bet is to contact a local electrician to do it as any new circuits in a domestic dwelling has to comply with part p of the building regs.

  5. You don't have enough knowledge to try it yourself.

    You didn't say if you were in the U.S. or elsewhere although I would guess the U.S.A. from the voltage which should be 120/240.

    1) You would need a ground rod.

    2) A sub panel (2 pole and at least 6 to 8 spaces) [there aren't any smaller]

    3) Wiring, size and connections need to be to the NEC (National Electric Code) and inspected and approved. (otherwise your fire insurance won't cover your mistakes).

    (Sockets are for light bulbs receptacles are for plugging electrical equipment into. (A small shed only would need lights).

    240 Volts really bites really, don't try this yourself.

    Good luck and be safe ! ! !

  6. You really need to get a qualified electrician in for this. Even if you do manage to 'hook it up' yourself you still need 1 to connect it & sign the work off. Better to be safe, legal and insured.

  7. If you don't know how to do it then you should call someone who does.

  8. Get someone to do it that does know what they are doing...possibly an electrician?

  9. Hire a licensed and bonded electrician.

  10. buy a 220v outlet like the one for your dryer..inside the box will be instructions with colored codes

  11. in uk to get round part p you would need to make it into a temporary circuit and not permamaent  so if you plug it in using an rcd plug in the mains socket in the house that is part p written out of the equation.

    then you could then just add sockets in your shed

    you will get all the wiring circuits if you google it


  12. Call an electrician, you don't want to mess with 220/240 volt power.

    Installing a sub-panel isn't a job for a homeowner.

    You didn't mention what size the present wire is, or what amps it's fused at.

  13. In the UK the new P building regs says that you cannot do outside wiring yourself.

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