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12V Tension wire lighting and electronic transformers

Discussion in 'Electrics UK' started by maycat, 2 Nov 2016.

  1. maycat

    maycat

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    Just bought a converted chapel with a couple of 12V tension wire lighting runs hung between the beams. It's a nice solution to a difficult lighting situation, and seems to work well. However I've noticed that the existing runs use JCC electronic transformers, whilst most sites selling tension wire lighting seem to say you have to use toroidal transformers. So anyone know what the issue is with using electronic transformers in such lighting systems ?

    The reason I care is twofold. Firstly I'd like to add another tension wire run to light a dark corner, and would prefer if possible to use a compact and easily hidden electronic transformer as is currently being used. Secondly, because these lights are on most of the time, I'd like to replace the existing halogen bulbs with LEDs, however I'm concerned that in doing so I'll drop below the minimum load on the existing transformers.

    (The ghetto solution to the second problem is I guess to leave one or two halogens in the circuit to keep the load up, and replace the rest with LEDs, but that seems like a problem waiting to happen in the future, if you forget which is which. So I'd prefer to do it properly with an appropriate transformer for an LED load, but which one ?)
     
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  3. flameport

    flameport

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    Vast amounts of radio interference emitted from the long wires.
     
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  4. 333rocky333

    333rocky333

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    As above, most electronic units are labelled with a Maximum lead length usually less than 2 metres, however there are some more compact Toroidal units nowadays than in the past
    There is no minimum load on Toroidal transformers
     
    Last edited: 2 Nov 2016
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