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Discuss Downlighter bulbs blowing in the Industrial Electrician Talk area at ElectriciansForums.net

M

mickpjack

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What would cause downlighter bulbs to blow after a few days of being changed?

For example, in the kitchen of a house where i'm going to be doing some work, there are four 240v halogen downlighters connected radially from the switch & some of the bulbs blow after only a few days of being changed. Some of the other rooms in the house seem to suffer from the same problem too.

Any suggestions would be most welcome.
 
E

el diablo

  • Thread Starter Thread Starter
  • #2
What would cause downlighter bulbs to blow after a few days of being changed?

For example, in the kitchen of a house where i'm going to be doing some work, there are four 240v halogen downlighters connected radially from the switch & some of the bulbs blow after only a few days of being changed. Some of the other rooms in the house seem to suffer from the same problem too.

Any suggestions would be most welcome.
might be loose connections in the wiring.
 
C

CHRIS-H

  • Thread Starter Thread Starter
  • #3
could be the connections or the lights could be over heating due to insalation (fibreglass) which can cause the down light connections to melt and make short but probs a loose connection
 

jeremy

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Mentor
Arms
WHERE IN THE COUNTRY ARE THESE LIGHTS?sorry just disabled caps lock. thats better I look after a couple of pubs in fulhamwhich are close to Stamford Bridge and Craven Cottage, they had lamps popping at the end of each match day as the local voltage suddenly fluctuated due to floods being switched off, kettles being switched on , whatever. Found out that all lamps were bought from either B&Q or HOM base, cos they are cheap. Not if you are buying three times as many they're not. imho Sylvania are a reliable choice
 
B

beaver74

  • Thread Starter Thread Starter
  • #5
are all the problem light on ground floor ,i have come across this problem when the kids playing will vibrate the floor and lamps go
 
J

Jurassic Spark

  • Thread Starter Thread Starter
  • #6
If they're GU10s, you could always replace them with CFL types - expensive at around six quid each, but longer lasting and cheaper to run.
 
E

el diablo

  • Thread Starter Thread Starter
  • #7
If they're GU10s, you could always replace them with CFL types - expensive at around six quid each, but longer lasting and cheaper to run.
that would be a good example of treating the symptom and not the cause.:p
 
Could be a loose connection. Look at the switch as well. If its a faulty switch the current could fluctuate rapidly but is not always visible to the eye at the fitting. Try changing the switch and see if that sorts it.
 
U

uksel

  • Thread Starter Thread Starter
  • #9
i'd make sure it's definitely lamp quality before you go blowing god knows how many £6 lamps for the client, i don't think they'd appreciate that on their tab :lol:
 
S

salisbury spark

  • Thread Starter Thread Starter
  • #10
Had problems while renovating houses and fitting these lamps.
Definately had problems with poor lamp quality from toolstation and lamps in cold flat roof in winter on switch on.
Grease on fingers causes hot spots on any lamp reducing life -but dont think this is your cause.
No answer here apart from lamp quality
 
U

uksel

  • Thread Starter Thread Starter
  • #11
maybe it could be an accessory they are using in the house causing problems.

a dodgy hairdryer, or old iron, antuique tumble dryer/washing machine etc. could cause some nuisance tripping and also blow the lights if they are on at the time...

maybe??
 
H

heathelect

  • Thread Starter Thread Starter
  • #12
I also find the ones that come with the fitting if they from diy stores are usually of inferior quality and dont last long, i then replace with ones from wholesaler and theres usually not a problem. dave
 
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