Light bulbs burn out in just one fixture in the house about once a month, also noticed the insulation was burning up above bulb, and fixture has started to corrode around the screws connecting it to the box and on the shaft that holds up the glass cover. voltage is exactly 120 volts, there are 2, 60 watt bulbs in fixture, fixture is rated for 60w bulbs max. I checked the resistance of the nuetral to ground its about .5 ohms, and also meggered all the wires with a 500v megger all showed good. I just took the fixture down tonight, because one bulb was burned out and noticed it was very hot. There is no moisture getting into the light, its on the ceiling of the 1st floor of 2 story house. Light fixture is almost new, also meggered all the wiring on it.
After reading all your posts, I looked more closley and noticed the air from the room was being sucked thru the light, possibly being in a cold air duct, or just a poorly insulated house. This caused the corrosion, and possibly burned out the bulbs from the extra moisutre, so I sealed the openings. Also being an electrician for 10 years, I didnt realize that there was such a difference in the quality of light bulbs, we do have 2, 100lb dogs that jump off the beds above the room having the problem, I will try a better bulbs also. Thanks for all your responses.
Bathroom Sconce
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Category : Lighting Fixtures
it sounds like there is too much heat. do you know if there is a heat duct in the same joist space as the fixture? or is the fixture in a joist space used as a cold air return? that could be a problem. you say the light is in the first floor of a 2 story house. are there kids jumping up and down above? that will shake the filament and cause premature failure. be sure to turn off the light when you put in new lamps. when the filament is on and shook up, it will burn out faster. just a few reasons i have seen in my 30 years of electrical work. good luck.
replace the fixture.
buy the energy efficient ones that are all twisty and spiral. there supposed to last up to 7-9 years.
try better quality bulbs perhaps
Try to get enegry saving lights. They take a longer amount of time to get to max brightness, so they save energy.
they burn out because you leave them on too long. its like driving a car. the more you drive the more gas its going to take. so turn those lights off and save the world from global warming.
Always turn them off when you don’t need them or else you’ll definitely buy another one.
My room’s light burns out so fast it’s annoying. It can be such a pain; trust me, I know. Especially when they’re top-of-the-line light bulbs. I’m thinking of getting the whole thing replaced.
cheap filament that fails after being turned on and off . a bulb will last longer if left on .
next is the vacuum its poor and fails easily.
my guess, cheap bulbs( most are these days), and vibration from upstairs breaking the filiments.
I had two fixtures in my house that I couldn’t keep bulbs in I tried all kinds and finally settled on the lower wattage energy effecient bulbs that last for many years. I tried them a year ago and have not had to replace them yet. If you try those and they continue to blow I’d say you are probably getting small surges and would have an electrician come and figure it out.
well, since you know how to use a megger, i will assume that you are not a smuck. i think this is the most intelligent question ive ever seen on this forum. you didn’t say if the light in this room or any other ever gets extra bright at odd intervals. if they do it could be that you are intermittently losing your neutral. ive been plagued with the intermittent failure of a neutral before, and its enough to make you want to cuss.
if no other light is affected, it could just be cheap bulbs from walmart. we use bulbs from a local lighting store. they cost about the same and have a two year warranty. ive never even heard of this before, but they sure last good for an incandescent bulb.
all my best to u,
Possum