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Kenson
Crew member
Posted
Will a over heated light bulb cause explosion ?
 
Posts: 1 | Location (where you live): HongKong,China | Registered: 08 July 2008Reply With QuoteEdit or Delete MessageReport This Post
MalcolmF
Discoverer
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Depends.
If the bulb is in an explosive atmosphere and the surface exceeds the flashpoint temperature, yes.
Otherwise, the only thing getting hot is the filament, and when that overheats, it melts, preventing any further heating. You then have a piece of glass with some metal inside it.
 
Posts: 373 | Location (where you live): Blackpool Lancs | Registered: 24 September 2007Reply With QuoteEdit or Delete MessageReport This Post
sipioc
Crew member
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quote:
Originally posted by MalcolmF:
Depends.
If the bulb is in an explosive atmosphere and the surface exceeds the flashpoint temperature, yes.
Otherwise, the only thing getting hot is the filament, and when that overheats, it melts, preventing any further heating. You then have a piece of glass with some metal inside it.


What he said
 
Posts: 18 | Location (where you live): Oshkosh | Registered: 14 July 2008Reply With QuoteEdit or Delete MessageReport This Post
JimTopbloke
Discoverer
Picture of JimTopbloke
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I suppose it depends on what type of bulb you are talking about, florescent (cool), plain old incandescent (hot), Metal Halide (very hot!)


These folk were none to happy then a hot bulb set fire to the curtains!
http://en.wikipedia.org/wiki/1992_Windsor_Castle_fire

I'm sure this would have cause plenty of explosions!


It's Logic Jim But Not As We Know It...
 
Posts: 726 | Location (where you live): england, lancashire | Registered: 19 October 2006Reply With QuoteEdit or Delete MessageReport This Post
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