GU10s popping the circuit breaker

[oldtimer]

Ok Looking for a bit of feedback here as I do work for a letting agent I am getting a common problem reoccurring with GU10s ie when they go they sometimes trip the circuit breaker ie type B 6 amp.

Now I have checked the circuits and fittings out and these lamps can be plugged into a track or a ceiling downlight. So has anybody else have the same problem and would changing the CB to a type C cure this type of nuisance tripping.

 

[eskimo39]

We have a load of downlights in our kitchen and when one of those goes it sometimes takes out RCD and MCB.

 

[Deleted member 9648]

Change to a type C will stop most of the instances...but GU10's are particularlly bad for this,they often wreck dimmers as well.
Good quality lamps will probably be less prone.
Sorry if this egg sucking territory but dont forget that if you are changing to a type C you will have to confirm disconnection times are still met.

 

[oldtimer]

Thanks guys very much appreciated I just needed another point of view because I had checked everything from the wiring connections etc so its good to know that it is a common problem.

 

[KINKY]

dimmer in our kitchen packed-in after two GU10s popped

 

[mayfair]

GU 10s good quality or bad quality all seem prone to being shall we say being crap, slightest bit of movement in for example the ceiling and of they pop usually taking dimmer fuse with them.

 

[Darkwood]

When the filament of an incandescent lamp blows it creates and ionised path between the live and neutral pins inside the lamp, the resistance thus is so low you get a short circuit which lasts a very small amount of time this is often easily seen by a mcb and thus trips, the more compact the lamp the higher the chance of it tripping the mcb, with the phase out of incandescent lamps coming soon its only a short term issue now and those who seek to rectify this issue by upgrading to larger mcb or type C or D must verify that ELI readings wont be compromised in doing so, but please be aware a short circuit as it is seen will still be seen equally by a type c or d and upgrading isnt a cure it may reduce the occurence of tripping but wont stop it as its not an inrush issue.
I find most customers accept the odd nuiscance tripping when its explained they wont be using the same type of lamp in a few years time and ive personally stopped fitting fillament lamps altogther now.

 

[telectrix]

maybe a expensive wasy of curing the problem but you could consider fotting 12v lamps with transformers. i'd be very wary of fitting c type MCB as the disconnection time may not be achievable as wirepuller stated earlier. think without looking it up the max. Zs for c type 6A is around 3ohms

 

[bugsy]

When the filament of an incandescent lamp blows it creates and ionised path between the live and neutral pins inside the lamp, the resistance thus is so low you get a short circuit which lasts a very small amount of time this is often easily seen by a mcb and thus trips, the more compact the lamp the higher the chance of it tripping the mcb, with the phase out of incandescent lamps coming soon its only a short term issue now and those who seek to rectify this issue by upgrading to larger mcb or type C or D must verify that ELI readings wont be compromised in doing so, but please be aware a short circuit as it is seen will still be seen equally by a type c or d and upgrading isnt a cure it may reduce the occurence of tripping but wont stop it as its not an inrush issue.
I find most customers accept the odd nuiscance tripping when its explained they wont be using the same type of lamp in a few years time and ive personally stopped fitting fillament lamps altogther now.

I think this is all there is to say!

 

[telectrix]

not exactly all...... the only acceptable equivalent of a GU10, giving out an acceptable light level is 4 or 5 watt LEDs at around £15-£20 a pop. are customers prepared to pay out for 6/10 Leds just to see what they are cremating in their designer kitchen?

 

[mayfair]

15k for a kitchen 20p each for lamps

not exactly all...... the only acceptable equivalent of a GU10, giving out an acceptable light level is 4 or 5 watt LEDs at around £15-£20 a pop. are customers prepared to pay out for 6/10 Leds just to see what they are cremating in their designer kitchen?

 

[Darkwood]

Although the initial cost of led gu10 can be high over the lifetime the energy saved pays for itself many times over, and prices are constantly falling, i find a 4watt led ample for say a bathroom and they are already coming out at under a tenner and with a life span of 50000 hrs they tend to be maintenance free and expected the fitting will be renewed before the led lamps but waiting 10yrs to see if they do there service is just one thing that remains to be seen.

 

[nickblake]

Ill add this if you purchase a good quality GU 10 that has an internal fuse ,these will reduce the possabilities of the MCB tripping they also protect the triac's commonly found in dimmers , im not saying they will 100% stop the tripping and blowing up of dimmers but they help the

 

[telectrix]

Although the initial cost of led gu10 can be high over the lifetime the energy saved pays for itself many times over, and prices are constantly falling, i find a 4watt led ample for say a bathroom and they are already coming out at under a tenner and with a life span of 50000 hrs they tend to be maintenance free and expected the fitting will be renewed before the led lamps but waiting 10yrs to see if they do there service is just one thing that remains to be seen.

in our bathroom were 4 GU10s. as an experiment, i tried 4 x 1watt leds. total 4watts. her indoors went up and said " what the *****. where's the bath"

 

[Darkwood]

in our bathroom were 4 GU10s. as an experiment, i tried 4 x 1watt leds. total 4watts. her indoors went up and said " what the *****. where's the bath"

Well understandable anything under 4w aint worth bothering about unless your spot lighting your darts trophy i only see the 1watt leds collecting dust on the shelves at the wholesalers over the next few years