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garysparky1

Hi all, myself & another spark rewired a large 8 bedroomed house earlier in the year I got a call recently from customer telling me that bulbs keep blowing in 2 bathrooms 4x G9s and a candle bulb in wall light downstairs. The lights are all on the same bank of MCBs RCD protected and on 1.5m2 T&E. I have thought maybe spikes in supply would be the answer anybody got any other take on this problem, any help greatly appreciated
 
All G9's from the same batch and poor quality? Mains voltage high? Vibration? Have often had short-lived candle bulbs so that might not be related. Spikes large enough to damage filament lamps will probably damage a whole lot of other stuff, but unusually high voltage will affect halogen lamps more than anything. Are there many other halogens in the property that are OK? What sort of lifespan is he getting from the G9's?
 
The vast majority of the time I put this down to absolutely rubbish bulbs which don't last five minutes. Are they incandescent type?

I put one in my front room a couple of weeks back when the low wattage one I had blew after about three years. Two days later it was dead.
 
Lucien, has given you some very good advice, 3 good points.
 
Not again! Somebody got called out for saying 'lamps' the other day. Call them bulbs in a theatre and you'll never hear the end of it. Let me get this straightened out....

The bulb is part of the lamp which goes in the luminaire but it is also called the envelope and a G9's envelope is a capsule, except in a theatre where it's still a bubble. My avatar shows a bulb that's not part of a lamp, in which the envelope is called a flask, unless the cathode is thermionic in which case it is referred to as a bottle.

Simples.
 
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Not again! Somebody got called out for saying 'lamps' the other day. Call them bulbs in a theatre and you'll never hear the end of it. Let me get this straightened out....

The bulb is part of the lamp which goes in the luminaire but it is also called the envelope and a G9's envelope is a capsule, except in a theatre where it's still a bubble. My avatar shows a bulb that's not part of a lamp, in which the envelope is called a flask, unless the cathode is thermionic in which case it is referred to as a bottle.

Simples.
But it is a fluorescent lamp not a fluorescent bulb, and a candle lamp not a candle bulb, surely???? LOL
 
The bulb is part of the lamp which goes in the luminaire but it is also called the envelope and a G9's envelope is a capsule, except in a theatre where it's still a bubble. My avatar shows a bulb that's not part of a lamp, in which the envelope is called a flask, unless the cathode is thermionic in which case it is referred to as a bottle.

Simples.

I'll take your word for it!
 
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Thanks guys, I did say to customer, who supplied all lights, that the bulbs supplied are probably not good quality the ones blown have been in 5 months non are on dimmers they are now replaced with new supposedly better quality ones. Thanks Lucien for your points it seems mainly halogens that have blown apart from the candle bulb.
 
Not again! Somebody got called out for saying 'lamps' the other day. Call them bulbs in a theatre and you'll never hear the end of it. Let me get this straightened out....

The bulb is part of the lamp which goes in the luminaire but it is also called the envelope and a G9's envelope is a capsule, except in a theatre where it's still a bubble. My avatar shows a bulb that's not part of a lamp, in which the envelope is called a flask, unless the cathode is thermionic in which case it is referred to as a bottle.

Simples.


So we're all agreed that bulbs are for the garden? :tongue:

Boydy
 
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I did a job which sounds similar, 7 bed house with swimming pool house which was 4 bedrooms, kept getting emails saying lamps are blowing.

Checked all the obvious, loose neutral at switch (not possible as in a Wago) and in fitting, checked voltage, 243v so fine there......

We fitted 5 outside light fittings, switched on at the same switch, on a Friday afternoon. By Monday morning they had stopped working.....so drove an hour to the job to be told by the gardener that she had left the lights switched on all weekend, over 48 hours straight.........

Moral of the story is some customers need to be told that a light switch is not just for turning lights ON.......
 
Are the lamps in bathroom enclosed?? Is there a possibility of water vapour getting to lamp ? As we know with halogens we shouldn't touch with our hands as it would reduce lamp life water vapour would / could cause same problem ?
 
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The vast majority of the time I put this down to absolutely rubbish bulbs which don't last five minutes. Are they incandescent type?

I put one in my front room a couple of weeks back when the low wattage one I had blew after about three years. Two days later it was dead.

They don't make "bulbs" like they used to.

In 1951 my Mum, Dad and me moved into another house and there was a light in the hall ( and everywhere else to of course ) but the "bulb" which was fitted in this light before we got there finally popped in 1973.

Not bad going and proves that they can be made to last longer than the do nowadays, but "they" wouldn't sell so many of them .........
 

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