downlights

[Rogc]

hi i am currently installing 8 x led downlights in my hall, i am going to wire these is series.

the q i have is that one of the lights is pretty close to the feed in the opposite direction to my series string of lights, would it have any detrimental affects is i was to wire the 7 x lamps in series and wire the other one off the feed in the other direction? ie not on the end of the series string, or do i have to run off the seventh light in the chain akll the way around to the eighth?

its been awhile since i did my series and parallel resistor theory so just wondered if this would have any effect?

cheer in advance

Rog

 

[ricicle]

hi i am currently installing 8 x led downlights in my hall, i am going to wire these is series.


its been awhile since i did my series and parallel resistor theory

Better read up again then because the downlights won't be in series (unless they are part of a specialist set)
Mains wiring is done in parallel.

 

[Rogc]

Strange that because my house lighting circuit loops from one light to the next which last time I looked is what series is, mayb my house is different from everyone else's !

 

[EFLImpudence]

last time I looked is what series is,

You didn't look well enough, then.

They will be in parallel.

Don't argue unless you are right.

 

[Rogc]

So why do they just loop from one light to the next then?

 

[Rogc]

Think may need to start again on this one as there seem to b some confusion!!!

When I ment the light string, daisy chain if u like from the feed.

Not breaking into the lighting circuit all the way through my downlights and then back into the circuit again so the whole lighting circuit runs through my downlights!!

Think of the downlights as just one big light fitting coming from the ceiling rose, u have ur supply in then out ( lighting circuit)
Then ur switch wire from live through switch and back again, take switch wire (live) and neutral spured of the lighting circuit.

Right here we go from here I am wiring from one downlight to the next daisy chain series wot ever u want to call it, wot I am askin is can I run 7 in daisy chain then one on its own from the junction box still same switched live ad neutral or do I carry on and connect the last one to the end of the daisy chain and have to run a longer cable,

Hope that's clear as mud?

 

[EFLImpudence]

Series.............................................................Parallel

 

[Rogc]

Thanks for the diagram, now take one of the lights in the parallel circuit and put a switch in the live feed side to the lamp now run to Severn more lights one to the other yes they will b in parallel to each other but then will share the same live feed from the junction box where as if I wire a second live feed off the switch wire to just on light then that has only one light on that live feed while the others have 7 lights drawing of that live feed??

I suspect it doesn't really matter but I thought I'd ask didn't realise it would b this hard to explain!

 

[Rogc]

Series.............................................................Parallel

P.s my house lights are not battery powered!

 

[EFLImpudence]

It's the wiring that is relevant.

 

[Rogc]

I know it is lol,

So any thoughts on the downlight ignoring the lighting circuit itself thinking off the down lights as a light fixture as above does it really make any difference

 

[Aragorn84]

what you propose is fine, so long as they're in parallel.

 

[ricicle]

A domestic lighting circuit might physically look series because you only see a single cable looping between each light (ignoring switch wires !)
But electrically they are in parallel. Go on - draw it out !

 

[Aragorn84]

this is useful:

//www.diynot.com/wiki/electrics:lighting:parallel

 

[EFLImpudence]

Yes, in diagram 'parallel 1' in aragorn84's link you just put switches in the live feed wherever you want to achieve the desired effect.