DOwnlighter problem


Postby charliewm » Fri Oct 24, 2008 2:22 pm

Hi All,
Over year ago I had 50W halogen downlighters installed in my kitchen. There are 12 altogether and each has its own transformer. Recently they have decided to stop working, gradually one by one and now there are none working. An electrician came round and said the transformers had blown...ALL of them?? and it was odd that the voltage reading he was getting at the switch was 57, not 230. He said that they were wired in series which was ok but that the whole lot would need replacing. Is he correct?
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Postby ericmark » Sat Oct 25, 2008 11:57 pm

I would agree that for 12 transformers to blow seems a little unusual. At 2.6 amp I would have expected the trip to keep tripping as that's a lot of lights for one switch. I would go for low voltage instead of extra low voltage unless you suffer from voltage variations.
Eric
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Postby charliewm » Mon Oct 27, 2008 9:06 pm

Thanks for your reply. However if I go to the expence of re-installing these lights are they just going to blow again or is there some way of preventing this happening?
charliewm
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Postby ericmark » Tue Oct 28, 2008 3:03 am

If you voltage is not steady then any tungsten lamp will blow only option is LED or cold cathode lamps.
Eric
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