LED lights blowing?

[jjrules2]

I have wired 9 LED lights in a utility room. I wired a 1.5mm cable from the CCU to the 1G switch and then took another 1.5mm from the switch in a radial formation to each of the 9 lights ending with just one cable at the 9th light.


I wired these in a week before the builders put the ceiling up (then marked out my cut outs, cut out and pulled the cable through) and I think maybe the builders have nicked a cable, but wouldn't mind a second opinion. When turning the lights on and off, occasionally all lights go on and off as you'd expect, but every now and then 1 or 2, or even 5 in one go, lamps blow!


At first I thought it must be a loose connection and either a live or neutral is not properly terminated, but after thorough investigation this doesn't seem to be the case. I still have 230v at my "end of line" between L-N and L-E and 0v between N-E, so a loose connection can't be the case can it?


Just wondering what you guys think? Don't want to take down all the lights and wack the old tester out and do IR readings between each leg to discover which leg is nicked unless completely necessary...massive hassle and time consuming!


Thanks


JJ

 

[SJD]

Were any tests done (e.g. continuity, IR, Zs) after the builders had left, before the lights were energised?

 

[MDJ]

Are they 230 or 12 volt, AC or DC?

 

[telectrix]

take the lamps out anf IR test. if you've used 12V LEDs rather than GU10s, more fool you: you'll need to dis. the trannys/drivers.

 

[MDJ]

more fool you: you'll need to dis. the trannys/drivers.

Yup that was going to be my next comment, probably the cause of it all.

 

[telectrix]

incompatible drivers might be the problem. hate to say it, but the builders might not be at fault for once. ( any plumbing pipes within 20 ft.? ).

 

[Octopus]

Can you confirm the lamp type, voltage? etc? Otherwise we may as well be pxssing in the wind.

 

[AndyL]

Why post and not wait/check for an answer? Just no helping some people

 

[Octopus]

Why post and not wait/check for an answer? Just no helping some people

Just check out the OP's previous posts - not exactly confidence building

 

[DPG]

A fiver says they're cheapy-nasty LED bulbs. OP, are there any signs of soot/blackening anywhere on the lamps themselves? Daz

 

[Octopus]

a tenner says he's got the wrong drivers if they are 12v

 

[DPG]

I reckon he's on GU10s - he'd have mentioned transformers otherwise. I'll stick with my fiver bet. Daz

 

[AndyL]

a pound says we don't ever find out

 

[DPG]

Two pound says we do Daz