ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 4
Recent Posts
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
Bathroom electrical
by gfretwell. 08/14/17 02:05 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
Fire alarm phone lines and color coding
by gfretwell. 08/08/17 10:26 PM
New in the Gallery:
Housebilding DIY wiring
Popular Topics(Views)
239,868 Are you busy
175,422 Re: Forum
167,716 Need opinion
Who's Online Now
0 registered members (), 32 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#177764 - 05/11/08 07:37 PM Oldest Operational Lamp  
Zapped  Offline
Member
Joined: Oct 2002
Posts: 482
Huntington Beach, CA, USA
I think we linked to an article on this forum a few years ago about this low-wattage lamp. Now, it's 107 yrs and counting. they just don't make em like they used to...

http://www.latimes.com/news/local/la-me-lightbulb5-2008may05,0,3217216,full.story


Work Gear for Electricians and the Trades

#177776 - 05/11/08 10:38 PM Re: Oldest Operational Lamp [Re: Zapped]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
It looks like it is running at about 50% of the rated voltage. I bet if you put a 240v lamp in your luminaires at home they would last forever too.


Greg Fretwell

#177784 - 05/12/08 06:34 AM Re: Oldest Operational Lamp [Re: gfretwell]  
SteveFehr  Offline
Member
Joined: Mar 2005
Posts: 1,208
Chesapeake, VA
It's still incredibile, though.


#177815 - 05/12/08 10:50 PM Re: Oldest Operational Lamp [Re: gfretwell]  
HighPotter  Offline
Member
Joined: Aug 2004
Posts: 42
So. Cal
Originally Posted by gfretwell
It looks like it is running at about 50% of the rated voltage. I bet if you put a 240v lamp in your luminaires at home they would last forever too.


Bet they wouldn't.

HP


#177822 - 05/13/08 08:50 AM Re: Oldest Operational Lamp [Re: HighPotter]  
Ann Brush  Offline
Member
Joined: Dec 2005
Posts: 152
Ohia
I bet if you took a 1000 long-life rough treatment 240V bulbs and put them in 110V surge suppressed and line conditioned sockets several of them would last 100 years.

They just happen to have noticed that that bulb has lasted that long, numerous bulbs - exactly similar and made by the same company have burned out long ago, we just don't keep track of them. We also don't run them on a line conditioner and surge suppressor. Does not surprise me in the least.


#177826 - 05/13/08 09:44 AM Re: Oldest Operational Lamp [Re: Ann Brush]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
I have some 20 year old "sign bulbs" that are still working. In fact I have never replaced one. That is what I have in all the lights over my screen cage.


Greg Fretwell

#177852 - 05/13/08 08:32 PM Re: Oldest Operational Lamp [Re: gfretwell]  
HighPotter  Offline
Member
Joined: Aug 2004
Posts: 42
So. Cal
Originally Posted by gfretwell
It looks like it is running at about 50% of the rated voltage. I bet if you put a 240v lamp in your luminaires at home they would last forever too.


Does it say that in the article?


#177853 - 05/13/08 08:34 PM Re: Oldest Operational Lamp [Re: Ann Brush]  
HighPotter  Offline
Member
Joined: Aug 2004
Posts: 42
So. Cal
Originally Posted by Ann Brush
I bet if you took a 1000 long-life rough treatment 240V bulbs and put them in 110V surge suppressed and line conditioned sockets several of them would last 100 years.

They just happen to have noticed that that bulb has lasted that long, numerous bulbs - exactly similar and made by the same company have burned out long ago, we just don't keep track of them. We also don't run them on a line conditioner and surge suppressor. Does not surprise me in the least.


Does it say that the bulb is installed on a surge and line conditoner?


It's a 4 watt bulb with a VERY thick filament.

HP


#177870 - 05/14/08 07:13 AM Re: Oldest Operational Lamp [Re: HighPotter]  
SteveFehr  Offline
Member
Joined: Mar 2005
Posts: 1,208
Chesapeake, VA
They also said "battery". So, not only is it surge and line conditioned, it's also on UPS. Not a cheap one, I hope...

I LOLled at the part about batting it for luck and tossing nerf balls at it until they realized how old it was.



Member Spotlight
sparky66wv
sparky66wv
West Virginia
Posts: 2,236
Joined: November 2000
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.015s Queries: 15 (0.003s) Memory: 0.8021 MB (Peak: 0.9734 MB) Zlib enabled. Server Time: 2017-08-17 06:08:27 UTC