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Other than Brewing => The Pub => Topic started by: phillamb168 on May 23, 2011, 07:35:21 AM

Title: What happened to this lightbulb?
Post by: phillamb168 on May 23, 2011, 07:35:21 AM
Had it blow out in the oven hood light fixture last night. Looks pretty nuts. Anybody seen anything like this before? What might be the problem?

(http://philliplamb.com/lightbulb.jpg)
Title: Re: What happened to this lightbulb?
Post by: thomasbarnes on May 23, 2011, 07:50:30 AM
Had it blow out in the oven hood light fixture last night. Looks pretty nuts. Anybody seen anything like this before? What might be the problem?

What you're seeing is evidence of electricity arcing between the gap between the light socket and the light bulb base. The heat generated by the arc has melted the metal. It's possible that the fan in the oven hood vibrated the light bulb loose, creating conditions for the arc. If you noticed your light flashing on and off before it died, heard sounds of sparking (buzzing or popping) or smelled something like burnt metal or electrical fire, you were detecting signs of arcing. I had a similar situation with a bulb mounted in an improperly mounted ceiling fan.

I'm not an electrician, but I think you've got a potential fire hazard there. You might need to replace the light socket and/or remount the hood to minimize vibration. You might also need have an electrician check out your electrical system for surges, improperly installed or rated fuses, or loose wiring.
Title: Re: What happened to this lightbulb?
Post by: tumarkin on May 23, 2011, 10:18:11 AM
Had it blow out in the oven hood light fixture last night. Looks pretty nuts. Anybody seen anything like this before? What might be the problem?

What you're seeing is evidence of electricity arcing between the gap between the light socket and the light bulb base. The heat generated by the arc has melted the metal. It's possible that the fan in the oven hood vibrated the light bulb loose, creating conditions for the arc. If you noticed your light flashing on and off before it died, heard sounds of sparking (buzzing or popping) or smelled something like burnt metal or electrical fire, you were detecting signs of arcing. I had a similar situation with a bulb mounted in an improperly mounted ceiling fan.

I'm not an electrician, but I think you've got a potential fire hazard there. You might need to replace the light socket and/or remount the hood to minimize vibration. You might also need have an electrician check out your electrical system for surges, improperly installed or rated fuses, or loose wiring.

that all sounds reasonable. could be. but..... maybe it was the Rapture?
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 23, 2011, 01:14:11 PM
Had it blow out in the oven hood light fixture last night. Looks pretty nuts. Anybody seen anything like this before? What might be the problem?

What you're seeing is evidence of electricity arcing between the gap between the light socket and the light bulb base. The heat generated by the arc has melted the metal. It's possible that the fan in the oven hood vibrated the light bulb loose, creating conditions for the arc. If you noticed your light flashing on and off before it died, heard sounds of sparking (buzzing or popping) or smelled something like burnt metal or electrical fire, you were detecting signs of arcing. I had a similar situation with a bulb mounted in an improperly mounted ceiling fan.

I'm not an electrician, but I think you've got a potential fire hazard there. You might need to replace the light socket and/or remount the hood to minimize vibration. You might also need have an electrician check out your electrical system for surges, improperly installed or rated fuses, or loose wiring.

that all sounds reasonable. could be. but..... maybe it was the Rapture?

Rapture, no. Ikea, yes. Although sometimes I think Ikea is Swedish for Antichrist.

Anyway, I'll tell the landlord. Sounds like we gotta get this fixed. Thanks guys!
Title: Re: What happened to this lightbulb?
Post by: ccarlson on May 23, 2011, 01:53:52 PM
I'm surprised you didn't have a lot of trouble unscrewing it from its socket. .
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 23, 2011, 02:01:04 PM
I would investigate the possibility of moisture and corrosion due to water presence.
Dissimilar metals i.e. the socket material and the bulb base material can definately
corrode when they are in close contact. Water adds to the possibility.  If corrosion
occured that could have begun the process of weakening the metal base in that
type of a pattern, the electricity simply took the most direct route with the least
resistance.
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 23, 2011, 02:21:01 PM
I'm surprised you didn't have a lot of trouble unscrewing it from its socket. .

The wife did :-D
Title: Re: What happened to this lightbulb?
Post by: weazletoe on May 23, 2011, 03:05:21 PM
Stupid French. Can't even get a lightbul right!  ;D  (I can say this. I'm French!)
Title: Re: What happened to this lightbulb?
Post by: SpanishCastleAle on May 23, 2011, 05:14:29 PM
Looks like Bender and a floodlight had a baby to me.
Title: Re: What happened to this lightbulb?
Post by: oscarvan on May 24, 2011, 02:39:55 AM
Bulb worms.......
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 24, 2011, 07:21:17 AM
Bulb worms.......

Can I take care of this with some soapy water like i did for the aphids?
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 24, 2011, 07:23:17 AM
Stupid French. Can't even get a lightbul right!  ;D  (I can say this. I'm French!)

Sans blague? Pourquoi n'avez-toi pas dit plus tôt! A partir de maintenant on allons seulement écrire en français, OK?
Title: Re: What happened to this lightbulb?
Post by: thomasbarnes on May 24, 2011, 08:27:22 AM
I would investigate the possibility of moisture and corrosion due to water presence.

That's a possibility, especially if you're doing big long wort boils on the stove top. I'd expect more discoloration from corrosion, though, especially near the top of the bulb. The clean, closely-placed pits still look like arcing to me, although perhaps it was a combination of water vapor getting into the bulb, which then triggered arcing. Either way, the light socket needs to be looked at.

If Phil can get look at the inside of the light socket, he can tell for sure if it's damaged. If it is, there might be small cones or beads of metal from the lightbulb on the inside of the socket. Like I said, I had a similar problem with an overhead fan/light combination.

It also occurs to me that since Europe (mostly) uses 220 volt household current, that there might be more risk of arcing and whatnot than on 110 volt systems, but I'd have no way of knowing.
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 24, 2011, 09:52:10 AM
I would investigate the possibility of moisture and corrosion due to water presence.

That's a possibility, especially if you're doing big long wort boils on the stove top. I'd expect more discoloration from corrosion, though, especially near the top of the bulb. The clean, closely-placed pits still look like arcing to me, although perhaps it was a combination of water vapor getting into the bulb, which then triggered arcing. Either way, the light socket needs to be looked at.

If Phil can get look at the inside of the light socket, he can tell for sure if it's damaged. If it is, there might be small cones or beads of metal from the lightbulb on the inside of the socket. Like I said, I had a similar problem with an overhead fan/light combination.

It also occurs to me that since Europe (mostly) uses 220 volt household current, that there might be more risk of arcing and whatnot than on 110 volt systems, but I'd have no way of knowing.

I never do my boils on the stovetop - not enough power, too much mess - but we do cook a lot of pasta. That might do it. I'll check on the inside of the socket tonight.
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 24, 2011, 01:39:18 PM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)
Title: Re: What happened to this lightbulb?
Post by: bluesman on May 24, 2011, 02:40:19 PM
That's the first time I've ever seen something like that. I would venture to say you're lucky it didn't overheat to the point of causing an electrical fire and eventually buring down the house.  :o

Title: Re: What happened to this lightbulb?
Post by: ccarlson on May 24, 2011, 02:44:13 PM
What you're seeing is very similar to what happened to houses wired with aluminum years ago. Starts out as slow arcing and eventually builds up heat until you end up with a wire that burned through (the good condition) or a house fire.
Title: Re: What happened to this lightbulb?
Post by: Slowbrew on May 24, 2011, 03:50:28 PM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)


Pourquoi ce forum serait-il différent de ma propre maison? L'épouse parle le français, les enfants parlent l'espagnol et je ne comprends pas tout cela.
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 24, 2011, 03:59:52 PM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)


Pourquoi ce forum serait-il différent de ma propre maison? L'épouse parle le français, les enfants parlent l'espagnol et je ne comprends pas tout cela.
By virtue of having a ready available translator online...that is how it is different! I parlyvouis not one word of da lingo...
Title: Re: What happened to this lightbulb?
Post by: oscarvan on May 25, 2011, 02:40:54 AM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)


Pourquoi ce forum serait-il différent de ma propre maison? L'épouse parle le français, les enfants parlent l'espagnol et je ne comprends pas tout cela.

OK, if you can I can.

Ophouden met deze onzin. Gewoon Engels spreken of het wordt een puinhoop.
Title: Re: What happened to this lightbulb?
Post by: tschmidlin on May 25, 2011, 03:54:39 AM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)


Pourquoi ce forum serait-il différent de ma propre maison? L'épouse parle le français, les enfants parlent l'espagnol et je ne comprends pas tout cela.

OK, if you can I can.

Ophouden met deze onzin. Gewoon Engels spreken of het wordt een puinhoop.
Totally.  Pile of rubble.  Listen to oscar.
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 25, 2011, 04:45:57 AM
Ik doe van harte mee eens!  ;D
Title: Re: What happened to this lightbulb?
Post by: jamminbrew on May 25, 2011, 05:03:30 AM
Þið eruð frekar kjánalegt. Ég farted bara, og það lykta fyndið!
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 25, 2011, 05:22:25 AM
farted !
Excuse you!
Icelanders eat Puffins.... :o
Title: Re: What happened to this lightbulb?
Post by: jamminbrew on May 25, 2011, 05:31:48 AM

Icelanders eat Puffins.... :o
Not to mention horse, whale, dolphin, and zebra!
Sorry, not trying to hijack the OP's post...
Title: Re: What happened to this lightbulb?
Post by: tschmidlin on May 25, 2011, 05:40:01 AM
Þið eruð frekar kjánalegt. Ég farted bara, og það lykta fyndið!
No fair using a language that can't be translated with babelfish
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 25, 2011, 05:45:07 AM
Pile of rubble.  Listen to oscar.
Perhaps a Wee bit of merit? I had fun...sorry to the OP.
Title: Re: What happened to this lightbulb?
Post by: tschmidlin on May 25, 2011, 05:48:30 AM
Pile of rubble.  Listen to oscar.
Perhaps a Wee bit of merit? I had fun...sorry to the OP.
Sorry, don't take this seriously.  I wasn't.  ;) ;D
Title: Re: What happened to this lightbulb?
Post by: punatic on May 25, 2011, 07:37:15 AM
Mẹ của bạn đeo khởi động chiến đấu!
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 25, 2011, 10:32:50 AM
http://www.youtube.com/watch?v=X5hrUGFhsXo

I will tell my wife not to put any lightbulbs in the thing, and to call an electrician toot sweet.
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 25, 2011, 10:37:39 AM
Je suis né dans Fountainbleu et je ne peux pas parler ou écrire le français

One more reason I love the internet   8)


Ooh, Fontainebleau, fancy pants!
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 25, 2011, 12:13:11 PM
Thats funny   ;D
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 25, 2011, 12:29:20 PM
Thats funny   ;D

How is something like this not fancy: (http://manierisme.melancholia.fr/IMG/jpg/fontainebleau_plafond_chapelle.jpg)
Title: Re: What happened to this lightbulb?
Post by: 1vertical on May 25, 2011, 12:45:53 PM
Thats funny   ;D
Phil I was speaking of Faux Da Fo Fo Fo video...
Thats it, I am calling the Amish Electrician!
Edit: We need to get some proper lighting on that fancy schmancy ceiling in my chateau....
Title: Re: What happened to this lightbulb?
Post by: punatic on May 26, 2011, 08:27:57 AM
Since we are speaking in tongues:

I had a cool experience today.  I was in Kona at Costco.  In the three minute walk from my truck in the parking lot to the food window in the front of the store I heard people speaking - German, Brazilian Portuguese, Japanese, Hawaiian, British English, Pidgin, American English, and Vietnamese.  After I had bought a slice of pizza and settled on a picnic bench out on the porch to watch the sunset while I ate it, a woman came walking by speaking French to her dog that she had tied up outside the store.

Hawaii!
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 26, 2011, 10:29:37 AM
Since we are speaking in tongues:

I had a cool experience today.  I was in Kona at Costco.  In the three minute walk from my truck in the parking lot to the food window in the front of the store I heard people speaking - German, Brazilian Portuguese, Japanese, Hawaiian, British English, Pidgin, American English, and Vietnamese.  After I had bought a slice of pizza and settled on a picnic bench out on the porch to watch the sunset while I ate it, a woman came walking by speaking French to her dog that she had tied up outside the store.

Hawaii!

Hawaii sounds like Paris but with more fruits. I mean, mangos and such.
Title: Re: What happened to this lightbulb?
Post by: punatic on May 26, 2011, 05:54:55 PM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 27, 2011, 07:59:52 AM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
Title: Re: What happened to this lightbulb?
Post by: ccarlson on May 27, 2011, 11:19:39 AM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
\

The French must be easily impressed. :)
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 27, 2011, 11:50:38 AM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
\

The French must be easily impressed. :)

All of my in-laws were super impressed with my BBQ, my self-built deck, my raised beds for the garden, my welding, and my couch. Perhaps it's just my in-laws that are easily impressed. Although I have to admit I find my couch impressive as well.
Title: Re: What happened to this lightbulb?
Post by: ccarlson on May 27, 2011, 12:09:23 PM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
\

The French must be easily impressed. :)

All of my in-laws were super impressed with my BBQ, my self-built deck, my raised beds for the garden, my welding, and my couch. Perhaps it's just my in-laws that are easily impressed. Although I have to admit I find my couch impressive as well.

That wasn't meant as a slam on the French, but rather US bulb manufacturers. Last year I bought 8 of the CF flood lamps from a wholesale club. They weren't cheap. To date I've had to go back to the factory for 3 warranty replacement bulbs,  I've got another bad one to replace, but it requires that I drag a very long ladder (which is kept outside and usually very dirty)  into the house.
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on May 27, 2011, 12:42:34 PM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
\

The French must be easily impressed. :)

All of my in-laws were super impressed with my BBQ, my self-built deck, my raised beds for the garden, my welding, and my couch. Perhaps it's just my in-laws that are easily impressed. Although I have to admit I find my couch impressive as well.

That wasn't meant as a slam on the French, but rather US bulb manufacturers. Last year I bought 8 of the CF flood lamps from a wholesale club. They weren't cheap. To date I've had to go back to the factory for 3 warranty replacement bulbs,  I've got another bad one to replace, but it requires that I drag a very long ladder (which is kept outside and usually very dirty)  into the house.

Oh I figured as much, plus I mean, I live in France and I post on an American homebrewers' forum, so I get used to it ;-)

Sucks about the lamps. I've had good luck with stuff from Ikea for the most part, not any flood lamps though. I wonder if maybe CF doesn't work too well above a certain luminosity.
Title: Re: What happened to this lightbulb?
Post by: ccarlson on May 27, 2011, 01:22:06 PM
Oh yeah, I forgot to mention that the lady speaking French was buying lightbulbs.  ;D

The French are VERY impressed by the quality of American lightbulbs.
\

The French must be easily impressed. :)

All of my in-laws were super impressed with my BBQ, my self-built deck, my raised beds for the garden, my welding, and my couch. Perhaps it's just my in-laws that are easily impressed. Although I have to admit I find my couch impressive as well.

That wasn't meant as a slam on the French, but rather US bulb manufacturers. Last year I bought 8 of the CF flood lamps from a wholesale club. They weren't cheap. To date I've had to go back to the factory for 3 warranty replacement bulbs,  I've got another bad one to replace, but it requires that I drag a very long ladder (which is kept outside and usually very dirty)  into the house.

Oh I figured as much, plus I mean, I live in France and I post on an American homebrewers' forum, so I get used to it ;-)

Sucks about the lamps. I've had good luck with stuff from Ikea for the most part, not any flood lamps though. I wonder if maybe CF doesn't work too well above a certain luminosity.

If you look inside them, you see a standard curly type CF bulb. Overall, I've had good luck with those, some lasting several years and used a lot. .
Title: Re: What happened to this lightbulb?
Post by: 1vertical on June 27, 2011, 01:03:56 PM
Phil,
At this point if you have repopulated that light bulb socket, perhaps you should pull
the bulb back out and examine the base of the new bulb for any more worm signs.

Then please report back here and let me know if you found any evidence? And what
ever did happen here?
Thanks   ::)
Title: Re: What happened to this lightbulb?
Post by: phillamb168 on June 27, 2011, 01:30:11 PM
Phil,
At this point if you have repopulated that light bulb socket, perhaps you should pull
the bulb back out and examine the base of the new bulb for any more worm signs.

Then please report back here and let me know if you found any evidence? And what
ever did happen here?
Thanks   ::)

Haven't had the courage to re-populate it yet, given the warnings about the house burning down and whatnot. I'll check with the landlord about sending someone to take a look at it.