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Easiest way to test for ring final circuit?

Discussion in 'Home and Garden' started by rubberduck, Mar 5, 2020.

  1. rubberduck


    Joined: Feb 8, 2004

    Posts: 4,048

    Hi, what would be the easiest way for a DIY electrician to test that a circuit has the ring intact and hasn't become radial circuit?
  2. 200sols


    Joined: Jan 14, 2018

    Posts: 4,247

    Location: Hampshire

    Unless you have proper testing equipment then you cant. Why would you expect a ring to have become a radial unless some serious bodge work has occurred?
  3. Jez


    Joined: Oct 18, 2002

    Posts: 32,227

    Just break the ring at any socket and test both ends?
  4. bremen1874


    Joined: Oct 20, 2008

    Posts: 11,095

    One loose connection, which can happen over time, would break the ring.

    It wouldn’t be difficult to disconnect both ends from the consumer unit and test the basic continuity.
  5. lewism


    Joined: Mar 10, 2006

    Posts: 2,575

    Location: Fife

    You'll need an ohm meter. plenty of guides online that will show you how to test a ring circuit.
  6. MeEsH BaKkA


    Joined: Dec 12, 2002

    Posts: 2,947

    Turn the power off. Check the power is off with a device you have verified working... unless you fancy potentially ******* your boxers/dying.

    Whip the easiest to access socket off the wall.

    Use a multifunction tester that will do down to around 0.1 Ohms or a touch together beepy tester if your circuit isn’t massive.

    Test between L-L N-N and E-E you should get continuity between them all the E-E reading should be a touch higher than the others if it’s sheathed cable.

    There are other tests to do to actually make sure it is wired in a ring but I don’t have the time to explain all the fig 8 stuff.
  7. rubberduck


    Joined: Feb 8, 2004

    Posts: 4,048

    This makes sense, thanks for taking the time to post.