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soulman

Snubber for led's

Question

soulman

Hi, Anyone help me with this please, I replaced GU10 halogens with GU10 5w led's in my hallway and the led's are flashing when switched off. I have installed these many times & never had this problem. I have searched the internet and it would appear that this happens with two way switching, which would explain why i have never had this happen before, as i generally install these in plastic clad ceilings within the bathroom area where the lighting is 1 way. My first question is does anyone know why this happens with 2 way switching? Also i need some help with the snubber what do i need? As i have a few different answers, such as a 240v rc suppressor, a capacitor & a resistor together, a capacitor on its own.

Cheers

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jimwillsher

Sorry to drag up an old-ish topic folks, but this matches my scenario exactly. Not the hair straighteners, the flashing LEDs :-)

 

Bog-standard bulb at the top of the stairs, light switch at top of stairs AND at bottom of stairs. Feed from CU comes to top switch, loops down to bottom switch via grey/black/brown/earth cable (down via black and grey, back via brown) and to the light. I've replaced the bulb with a 240v LED and it now flashes every 3-4 seconds when off.

 

If the light is off via the black cables (e.g. both switches up) it flashes, and there's approx 38v across the pins. If it's off via the grey cable (e.g. both switches down) there's approx 12v across the pins and no flashing. I can work with that, but my other half cannot.

 

I'm curious about the contact suppressor mentioned earlier in this thread:

 

http://www.maplin.co.uk/contact-suppressor-498

 

Does that sound like the answer to my scenario? If so, can it get soldered across any point between switch and lamp (there's a junction box before the light fitting)? It's in roof space with insulation.

 

Many thanks

 

 

 

Jim

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Steve3948

Which strapper is the sw/live connected to and the live.

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Marvo

I have one for you clever folks,

when the lights are on, 10 x 4w LEDs , or even if its just half the bank,

when the mrs is using her hair straighteners they will flicker off every so often, I guessing when the thermostat kicks,

whats the problem?

does anyone have a simple fix or do I need to get a proper sparky in,? :|

Try one of those cheap noise suppressor piggy back plugs you get for computers. It should sink noise to earth regardless whether it originates in an appliance or outside the appliance. The downside is that if it's a large spike the MOV might cause the RCD to trip especially if there's already some cumulative leakage elsewhere in the house.

 

 

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steptoe

Try one of those cheap noise suppressor piggy back plugs you get for computers. It should sink noise to earth regardless whether it originates in an appliance or outside the appliance. The downside is that if it's a large spike the MOV might cause the RCD to trip especially if there's already some cumulative leakage elsewhere in the house.

 

 

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RCD,?

in my house?

those things cost money.!

:slap

 

thanks Marvo,

might be worth a try,

either that or Mr Claus may need to do some more wrapping  ;)

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ajheis

Thanks for that Fellow Sparky's-i will take some over to Spain with me-( RC Device). Any advice on the Optimizers or again are they on previous Posts?

 

 

Regards..

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