Emergency lights - maintained vs non-maintained

Discussion in 'Electrics UK' started by Paul_Thomas, 19 Jan 2007.

  1. Paul_Thomas

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  2. luminaire

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    The non-maintained lights will only come on in the event of a power failure.
    The maintained lights you can also use as normal. :)
     
  3. Paul_Thomas

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    Aaah!

    Makes sense, although using the term 'maintained' for it doesn't!!
     
  4. Steve

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    Does that mean "sustained" EMs are on permenantly?
     
  5. Spark123

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    Sustained lights have two lamps, basically a normal lamp and a non-maintained emergency light.
    The normal lamp can be switched, very similar concept to a maintained unit but the maintained unit only having the single lamp for both duties.
     
  6. Steve

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    what about the exit signs in our shop then, which are permenantly lit? what are they called?
     
  7. Spark123

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    How many lamps in them?
    Probably maintained, with a wire loop between L and Ls.
    That is assuming they are self contained (have their own battery pack in them).
     
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