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#60019 - 12/21/05 09:04 AM Light Bulbs  
sandro2  Offline
Member
Joined: Mar 2005
Posts: 49
philadelphia,PA
What would cause light bulbs in recessed lighting to constantly burn out and or shatter?


Work Gear for Electricians and the Trades

#60020 - 12/21/05 09:09 AM Re: Light Bulbs  
LearJet9  Offline
Member
Joined: Apr 2005
Posts: 197
Millis, MA USA
vibration, excessive voltage, cheap lamps, tapping lamp with a hammer, over tightening; To name a few.


#60021 - 12/21/05 09:17 AM Re: Light Bulbs  
sandro2  Offline
Member
Joined: Mar 2005
Posts: 49
philadelphia,PA
What would be excessive voltage for a residential home for 120v. bulb?
(besides 240v.)


#60022 - 12/21/05 09:52 AM Re: Light Bulbs  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
I'd try 130v bulbs first, and check the manufacturer's can/trim/lamp combination ratings.

Oh, and I'd suggest keeping the hammer away from the fixtures.


Larry Fine
Fine Electric Co.
fineelectricco.com

#60023 - 12/21/05 12:00 PM Re: Light Bulbs  
jwhite  Offline
Member
Joined: Dec 2005
Posts: 64
Trenton, NC, USA
+ or - 5 % is generaly considerd to be within tolerance.


#60024 - 12/21/05 01:59 PM Re: Light Bulbs  
GETELECTRIC  Offline
Member
Joined: Oct 2003
Posts: 172
toronto canada
Excessive wattage.


#60025 - 12/21/05 03:59 PM Re: Light Bulbs  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
We have found that vibration kills a lot more than people think; especially on a lower floor where people walk above. One house was so bad we put rough service bulbs in. Never blew another one there.


#60026 - 12/21/05 04:09 PM Re: Light Bulbs  
Spark Master Flash  Offline
Member
Joined: Jul 2003
Posts: 141
Las Vegas, Nevada, USA
Too much heat in the recess can. Change bulbs to lower wattage rating, maybe change recess can's trim ring to a thinner design to allow more air flow.

Loose neutral.

These are a couple of ideas that might help.

SMF


"When in doubt, short it out"

#60027 - 12/21/05 09:41 PM Re: Light Bulbs  
lamplighter  Offline
Member
Joined: Oct 2005
Posts: 101
Clawson,Michigan,USA
What style lamps are you burning up?
Are they standard, pear shaped incandescents or are they spots or floods that are designed to reflect the light (and some of the heat) out of the can?
If they are standard incandescents such as you would find in a lamp, switch to the proper bulbs. If they are spots or floods, change to a lower wattage and make sure there is no insulation covering the back of the can.


#60028 - 12/21/05 10:45 PM Re: Light Bulbs  
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
Lost neutral, call fire dept.
Resistive connections, often the case...
Over-loaded circuit, rare...
Thermal sensor in over lamped can, often.
The cheapest lamp found on the internet, often.
Wrong dimmer, is also possible.


Mark Heller
"Well - I oughta....." -Jackie Gleason

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