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Current carrying capacity of the wires inside a fluorescent batten with regard to LED tubes

psychicwarrior
Hello all - good afternoon !


As in the subject, can someone verify please what the current carrying capacity of the [thin] wires in a flourescent batten is ?


It is with regard to fitting an LED tube replacement where the [electronic] ballast has to be taken out of circuit; the wires from it to one of the tube mount ('tombstones' ?)  have to be cut and wired from the tube mount directly back to the 240V supply, according to most instructions.


I was curious about the wires with regard to doing this - it must be ok as this is the general instruction, but I was interested to know what they can carry.
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    psychicwarrior:

    @gkenyon -  yes I think one has to conclude that the OEM certifications are void.


    Most LED tube kits either make use of the internals as they are (no mods) when a magnetic ballast and starter a    re present (just using a replacement starter) ie. just fit the tube.




    So, if just replacing a starter and the lamp, then perhaps OK, but I don't think either manufacturer would take full responsibility.



    • The manufacturer of the lamp would say it was never designed for that starter and tube?

    • The manufacturer of the replacement lamp and starter gear only made that?


    If electronic internas (no starter/electronic ballast) then everything has to be removed and the LED tube itself is the only active component.





    In both cases I think the LED tube manfacturers instructions for the product and fitting become relevant and the batten is just a mounting facility for the LED tube - which the manufacturer, one would presume, is stating is suitable for their product when their instructions are followed.




    I think it's very doubtful the LED tube manufacturer will take responsibility for anything they didn't provide, type test and verify for themselves.



    The wires being resused in the batten just need to be verified as suitable in my view - electrically - as the supply to the LED tube.





    There may be other components than simply wires - fuse holders, terminal blocks, lamp caps, etc.


    What are you "verifying" against? It could only be really product standards, but which one? And which version? You could well be modding fittings that are a number of years old, and as with BS 7671, other standards change too.




    My post was simply a word of caution that, in the event of there being any "comeback", it's likely to be the person who supplied the tube and carried out the mod, rather than the manufacturers, who are most likely to shoulder responsibility.

    Not that there should be anything to worry about if you are using decent retrofit parts, and fitting them to decent fittings that aren't out of the ark.

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  • 0

    psychicwarrior:

    @gkenyon -  yes I think one has to conclude that the OEM certifications are void.


    Most LED tube kits either make use of the internals as they are (no mods) when a magnetic ballast and starter a    re present (just using a replacement starter) ie. just fit the tube.




    So, if just replacing a starter and the lamp, then perhaps OK, but I don't think either manufacturer would take full responsibility.



    • The manufacturer of the lamp would say it was never designed for that starter and tube?

    • The manufacturer of the replacement lamp and starter gear only made that?


    If electronic internas (no starter/electronic ballast) then everything has to be removed and the LED tube itself is the only active component.





    In both cases I think the LED tube manfacturers instructions for the product and fitting become relevant and the batten is just a mounting facility for the LED tube - which the manufacturer, one would presume, is stating is suitable for their product when their instructions are followed.




    I think it's very doubtful the LED tube manufacturer will take responsibility for anything they didn't provide, type test and verify for themselves.



    The wires being resused in the batten just need to be verified as suitable in my view - electrically - as the supply to the LED tube.





    There may be other components than simply wires - fuse holders, terminal blocks, lamp caps, etc.


    What are you "verifying" against? It could only be really product standards, but which one? And which version? You could well be modding fittings that are a number of years old, and as with BS 7671, other standards change too.




    My post was simply a word of caution that, in the event of there being any "comeback", it's likely to be the person who supplied the tube and carried out the mod, rather than the manufacturers, who are most likely to shoulder responsibility.

    Not that there should be anything to worry about if you are using decent retrofit parts, and fitting them to decent fittings that aren't out of the ark.

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