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  1. 2nd August 2009, 06:47 PM #1
    qld
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    Default How long should it take for a lightbulb to explode from heat?

    I know of a 100 watt lightbulb that was left on overnight and exploded in the morning.

    Does anyone know how long one should take to explode?
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  3. 2nd August 2009, 06:49 PM #2
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    Never.

    Only problem is if the bulb is enclosed in a fitting of lower wattage rating.
  4. 2nd August 2009, 06:51 PM #3
    snowyskiesau
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    Quote Originally Posted by qld View Post
    I know of a 100 watt lightbulb that was left on overnight and exploded in the morning.

    Does anyone know how long one should take to explode?
    A lightbulb should not explode under normal circumstances.


    Unless it's covered in mould of course....
    Geoff
    The view from home
  5. 2nd August 2009, 06:59 PM #4
    qld
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    What sort of fitting would you use for a 150w bulb?

    Some sort of thing that is 100% metal?
  6. 2nd August 2009, 07:00 PM #5
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    Quote Originally Posted by qld View Post
    I know of a 100 watt lightbulb that was left on overnight and exploded in the morning.

    Does anyone know how long one should take to explode?
    A fraction of a second.
  7. 2nd August 2009, 08:06 PM #6
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    Well I'm no explosives expert but a fraction of a second seems about right.
    Mick

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  8. 2nd August 2009, 08:15 PM #7
    epineh
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    Quote Originally Posted by qld View Post
    What sort of fitting would you use for a 150w bulb?

    Some sort of thing that is 100% metal?
    Depends on the application, is this an outdoor light ? If so what is it lighting up? Need a little more info to help out.

    A standard incandescent lamp isn't really all that great once you go over 60W, if you need more light then an alternative light is generally better, mercury vapour, metal halide etc, but it really depends on what you are trying to do...

    Cheers.

    Russell.
  9. 3rd August 2009, 02:01 PM #8
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    Thats right fellas, feed the troll...
  10. 3rd August 2009, 06:26 PM #9
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    Light bulbs never explode..........they implode.
    Chris
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    Life isn't always fair

    ....................but it's better than the alternative.
  11. 3rd August 2009, 10:03 PM #10
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    The light bulbs on but nobody's home.

    Quote Originally Posted by Christopha View Post
    Thats right fellas, feed the troll...
    Whatever note you blow youre never more than a semitone away from the correct one....(Miles Davis)
  12. 3rd August 2009, 10:04 PM #11
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    Youre assuming its the light bulb exploding. It could be a case of exploding mould.


    Quote Originally Posted by snowyskiesau View Post
    A lightbulb should not explode under normal circumstances.


    Unless it's covered in mould of course....
    Whatever note you blow youre never more than a semitone away from the correct one....(Miles Davis)
  13. 4th August 2009, 03:10 PM #12
    qld
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    Im guessing a lightbulb in a ceiling connection will explode faster than a single lightbulb hanging from a cord?
  14. 4th August 2009, 03:14 PM #13
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