Loop circuits

[D00DY_T00DY]

You will most likely find the lighting circuits the hardest to get your head around at first but it does not take long and it will all make perfect sense whichever way you have to wire it.

Yeah i've done some sockets with an electrician(Yes he's fully qualified and double checked all work I did) and they're fairly simply. Lights and switches seem a bit more tricky hence why i've made this thread to try get my head around the basics of them and I'm a bit more confident on knowing how they work. thanks fellas

 

[Simonslimline]

Maybe they see it as a line feeding the switch (switch line) & then returning to the light (return)

I am more than happy with how it works and have no problem with it.

I guess we have both been taught different terminology thats all. I fully agree with you though.

 

[Pete999]

I believe i understood all that apart from one thing.
College can't afford fancy wires, it'll put them under we used one length of twin and earth and cut it the correct lengths ourselves with brown sleeving to signify the switched live and for the second bit solely for connection purposes? so what will be powering the ceiling rose will be the switched live coming from the switch when it's on? the live from the spur is just to go through the lamp to connect with the switch?

Nothing wrong with sleeving the switched live, I did say ideally you should use twin brown, nothing in the regs to say you have to.

You're a bit off with your second question, the live from the spur and the live feed to the switch are connected into the loop connector in the ceiling rose, as merely a means of feeding the switch, the switched live from the switch connected with the looped switched live going from the ceiling rose to the batten holder connect to the other side of the lamp.

 

[D00DY_T00DY]

Nothing wrong with sleeving the switched live, I did say ideally you should use twin brown, nothing in the regs to say you have to.

You're a bit off with your second question, the live from the spur and the live feed to the switch are connected into the loop connector in the ceiling rose, as merely a means of feeding the switch, the switched live from the switch connected with the looped switched live going from the ceiling rose to the batten holder connect to the other side of the lamp.

That's what i meant, i think i worded it wrong and i'm sure i understand it now only early in my course and i'm quite far ahead in workshop so plenty of time to get this all figured out.
Thanks again by the way.

 

[Pete999]

That's what i meant, i think i worded it wrong and i'm sure i understand it now only early in my course and i'm quite far ahead in workshop so plenty of time to get this all figured out.
Thanks again by the way.

Not a problem any time

 

[Richard Burns]

Pretty diagrams to try and explain the wiring structure:


Effectively the line (not live), neutral and cpc are all grouped near the light fitting (at the three plate) and there is a feed from the line down to the switch and the cable comes back from the switch to the switched line connection (also at the three plate).
The light fitting is just connected to switched line and neutral (and cpc, if required).