extraneous conductive parts Ahhhhh

Discussion in 'Electricians' Talk' started by brainebird, Mar 14, 2008.

  1. shnabz

    shnabz New Member

    But..the metal body of a kettle IS an exposed conductive part! It's a conductive part that can be touched that is not normally live, but can become live under fault conditions; because it uses current.

    A radiator however cannot become live under fault conditions because it is not an appliance because it doesn't use current. However, it is liable to to introduce a potential.
     
  2. spinlondon

    spinlondon Screwfix Select

    Shouldn't that be a difference in potential?
     
  3. shnabz

    shnabz New Member

    Nope.

    BS 7671 defines an extraneous -conductive-part as, "A conductive part liable to introduce a potential, generally Earth potential..."

    However, if the rest of the circuit has a different potential, then there will be a difference in potential.
     

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