DIY Forum

 

Ultimate HandymanUltimate Handyman on Pinterest

 

DIY Forum/Home improvement advice forum

 

 

A-Z CONTENTS | DISCLAIMER | DIY VIDEO | HOME | SAFETY FIRST | FORUM RULES

It is currently Thu Oct 18, 2018 11:36 pm
Visit Hilti


Time zone: Europe/London [ DST ]




 

 


Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Mon May 07, 2018 9:09 pm 
Offline
Senior Member

Joined: Thu Jan 27, 2011 10:17 am
Posts: 151
Has thanked: 14 times
Been thanked: 0 times
I have a celling light with 5 or 6 LED bulbs fitted. Just noticed they are glowing dimly but the light switch is turned off.
If I trip the cct breaker at the fuse box for the lighting cct they stop glowing.
If I remove one of the LED bulbs and fit a halogen bulb they stop glowing.

My first thought is that there is current leakage but I cannot convince myself that is correct but that's still all I can think of.

what are your thoughts?

thank you

glassescase


Share on FacebookShare on TwitterShare on DiggShare on DeliciousShare on Google+
Top
 Profile  
Reply with quote  
PostPosted: Mon May 07, 2018 9:23 pm 
Offline
Pro Carpenter
User avatar

Joined: Sat Dec 16, 2006 10:11 pm
Posts: 20728
Location: redhill surrey an auld reekie laddie
Has thanked: 693 times
Been thanked: 1966 times
its induced current with another circiut next to the wires powering somthing causing the induction
with leds working on say 3w as little as 0.5w will cause them to glow
works in a similar way to your rechargeable toothbrush with no metal to metal contact

_________________
we are all ------------------still learning


Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 8:23 am 
Offline
Senior Member

Joined: Thu Jan 27, 2011 10:17 am
Posts: 151
Has thanked: 14 times
Been thanked: 0 times
thanks big-all, sort of what I was thinking. how the heck do I trace and solve this? Why do the LED's go off if I replace 1 with a Halogen bulb?
If I have other lighting cables at the same switch as it is a 3 gang switch I'm a bit stumped on what to do.
Is replacing cables the answer?

glassesase


Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 9:26 am 
Offline
Pro Carpenter
User avatar

Joined: Sat Dec 16, 2006 10:11 pm
Posts: 20728
Location: redhill surrey an auld reekie laddie
Has thanked: 693 times
Been thanked: 1966 times
its not actually a problem its not a fault to find
its actually virtually no current
you could try another make off led bulb that may need a greater current to "flicker" with
you could replace one with another sort[incandesent/low energy ] to stop the ghostly effect but at the extra consumption
its just cables running along side they may have a direct connection or no connection at all think along the lines off static but without the capacity to store the energy
as an aside
if we assume about 14p per kwh or unit off electricity
and your bulb or tv or what ever is on for an average 10 hrs a day
for every 1watt consumed you will use 50p a year so iff you replace a 3w led with a 7w le bulb you will consume an extra £2 a year [4wx50p]

_________________
we are all ------------------still learning



For this message the author big-all has received gratitude : glassescase
Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 9:50 am 
Offline
Senior Member

Joined: Thu Jan 27, 2011 10:17 am
Posts: 151
Has thanked: 14 times
Been thanked: 0 times
thank you. what do you think about leaving 1 halogen bulb in, will that suffice or will there still be a current draw.....just not enough to make the LED's glow?

glassescase


Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 9:59 am 
Offline
Pro Carpenter
User avatar

Joined: Sat Dec 16, 2006 10:11 pm
Posts: 20728
Location: redhill surrey an auld reekie laddie
Has thanked: 693 times
Been thanked: 1966 times
its minute amounts off current if you have different sorts off leds mix and match and leave the glowing ones where they wont bother you :lol:
but any low energy bulb will use less current than a halogen but solve the problem

_________________
we are all ------------------still learning


Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 6:08 pm 
Offline
Senior Member

Joined: Thu Jan 27, 2011 10:17 am
Posts: 151
Has thanked: 14 times
Been thanked: 0 times
big-all, why do the LED's in the light fitting stop glowing when I replace just 1 with a halogen bulb?

glassescase


Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 6:24 pm 
Online
Senior Member

Joined: Sat Sep 01, 2012 7:03 pm
Posts: 7936
Has thanked: 45 times
Been thanked: 1356 times
As big-all said the lights are glowing because there is an induced current / voltage in the cable. (It often happens on the light you have on the landing)
When you add a "normal" lamp there is so little current / voltage that it can not even make this lamp glow. (Although it tries) because the induced current / voltage is trying to light the "normal" lamp, there is (if you will) none left for the other lamps, so they do not glow.

_________________
Fret not, a forum is a collection of opinions. Above, are mine.

Which is correct? Metre or Meter? Click the link to find out more.

Working on anything electrical? have you got a multi meter? why not? Would you hit a nail with a shoe?

If gloom had a voice, it would be me. :mrgreen:

:idea1: How to post a picture on this forum Click here



For this message the author someone-else has received gratitude : glassescase
Top
 Profile  
Reply with quote  
PostPosted: Tue May 08, 2018 9:10 pm 
Offline
Senior Member

Joined: Thu Jan 27, 2011 10:17 am
Posts: 151
Has thanked: 14 times
Been thanked: 0 times
thank you someone-else.
Now I understand.
As its a bedroom light I'll leave the halogen bulb in place.

thanks again someone-else and big-all

glassescase


Top
 Profile  
Reply with quote  
PostPosted: Wed May 09, 2018 7:01 am 
Offline
Senior Member
User avatar

Joined: Tue May 10, 2011 3:43 am
Posts: 2673
Location: North Wales
Has thanked: 64 times
Been thanked: 543 times
In theory any bulb which states suitable for dimming should have a leak off resistor built in, so the very small amount needed to work the dimmer (or any other electronic switch without a neutral) will not cause the lamp to light.

However some makes leak off more than others, one can use a interference capacitor same as found in electric drills and the like to leak off a little more to stop lamps glowing, however in most cases all that is needed is select another make, normally the cheaper the better.



For this message the author ericmark has received gratitude : glassescase
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

 

 




Similar topics
   

Time zone: Europe/London [ DST ]


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Visit Solent plastics


 

 

 

News News Site map Site map SitemapIndex SitemapIndex RSS Feed RSS Feed Channel list Channel list
ultimatehandyman privacy policy

Contact

 

Powered by phpBB® Forum Software © phpBB Group

phpBB SEO