garage electrics

[powelly]

hi i need some advice from someone , i need to install a 2 way consumer unit in a detached garage to supply a light and double sockets. But the con unit at the house has no room for any more circuits so is there any way round this ? help with this matter would be most appreciated thanks !!![/u]

 

[JAmmmmm]

You will either have to have your CU replaced or have a separate CU added for the garage. RCD protection is a must.

Are you planning to do this yourself? If so are you aware of Part P?

 

[mfarrow]

Henley block and new tails to a separate fuse switch, then out to garage.
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.
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Or a bigger consumer unit.

 

[ban-all-sheds]

hi i need some advice from someone , i need to install a 2 way consumer unit in a detached garage to supply a light and double sockets.

• For a circuit to supply a given load, how would you go about deciding what cable and protective device to use?
  
  
• Do you know which circuits can be ring finals and which cannot, and what the advantages and disadvantages of each are?
  
  
• Do you know what the two main lighting circuit topologies are, and what the advantages and disadvantages of each are?
  
  
• How do you calculate maximum demand and how can diversity be used?
  
  
• What are the 3 different types of domestic single-phase supplies provided in this country, how would you recognise them, and what differences do each make to the requirements for the rest of the installation, particularly any outdoor supplies?
  
  
• Can you correctly identify all components and connections of a circuit by method of testing or otherwise? In doing so can you identify or recognise anything wrong or dangerous with the circuit?
  
  
• Do you understand how the way in which you install cables affects how much current they can carry?
  
  
• What are the rules concerning cables concealed in walls, partitions and under floors?
  
  
• What are the rules for cables run outdoors, buried in the ground or overhead?
  
  
• Where cables need to be joined, how should this be done / not be done and in what circumstances are different methods acceptable?
  
  
• Can you identify extraneous conductive parts, and do you know the requirements for main and supplementary bonding of them?
  
  
• Which circuits should be RCD protected?
  
  
• How do you propose to isolate your supply so that you can connect up your new CU?
  
  
• Do you know what tests you would carry out on the installation - what sequence you'd do them in and at what point you would energise the installation, and for each test do you know what is being measured, why it is important, how you would carry out the test, and with what equipment, and what sort of results you would expect to get if everything was OK?

The thing is, installing new CUs, outside supplies, submains etc is not a trivial job, and I can assure you that it involves knowing far more than you think it does.