prawnabie
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| posted on 2/11/08 at 07:38 PM |
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Number plate light problem!
Hi Guys
I have just fitted a new "mini" type numberplate light to my locost.
As per usual, the "base" of the numberplate light is earthed and the live part is seperated by a rubber shim.
This is all hunkydory until I insert the bulbs, then the whole assembly becomes earthed. There are two bulbs in the light and this happens with either
bulb it.
Is this right because it is driving me mad!
Thanks
Shaun
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blakep82
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| posted on 2/11/08 at 07:43 PM |
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how are you measuring it? if you're putting a multi meter against the body (of the light, or the car, or earth lead, whatever) and the other
terminal agaisn't the live wire, when the bulb's in, then its correct
________________________
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Paul (Notts)
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| posted on 2/11/08 at 07:43 PM |
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The bulb will connect the live supply to the earth so that it lights up!
Paul
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02GF74
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| posted on 2/11/08 at 08:21 PM |
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^^^ wot they say.
if you are measureing resistance, even a 6 W ublb would be about 2 ohm - that depending on your meter will look more or less like a short.
if the lamp hourins is open circuit before you insert the lamp and when you insert the lamp, the two contacts contact t he bulb correctly, it soulnds
like it is ok.
if you are worried, temporarily fit a small A fuse between the wire and lamp., a cheap way is to take a mains cable, strip it down and take one or
two filaments from the wire - that will act as fuse.
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BenB
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| posted on 2/11/08 at 10:09 PM |
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Wot they said.
You could use a fuse.
Personally I'd just "flick" the feed +ve wire onto the +ve supply of the car battery and see what happens. You should get a little
spark (the bulb will pull a little bit of current). You'll know if you've got a short because you'll get a flipping big arc!!!
Crude but effective....
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prawnabie
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| posted on 2/11/08 at 10:28 PM |
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Thanks guys, just confused me - sorted now!
Shaun
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