led install

Josh2015 · 26-02-2022 06:27AM #1

hi,

I am replacing a light fitting with an LED, when I remove the fitting I find attached. Can someone explain the wiring please?

DSC_0868.JPG

meercat · 26-02-2022 08:15AM

Just connect your wires into the new fitting as originally done

earth(green/yellow)

neutral(blue)

switched live(brown single,the one with black tape)

don’t connect anything into the last remaining connector with the multiple brown cables. This is a permanent feed

ensure power is turned off at the distribution board for safety

kirk. · 26-02-2022 09:56AM

Yah turn off power at the board as there's a permanent feed

Light switch won't isolate supply

Josh2015 · 26-02-2022 11:42PM

Thank you.

What does permanent feed mean?

Padre_Pio · 26-02-2022 11:43PM

Unswitched wires.

Wires that stay live even when you turn off the light switch.

Josh2015 · 26-02-2022 11:47PM

Is it sufficient to turn off the upstairs lights fuse in the fuse box or should the main switch be turned off when working on the light fitting?

kirk. · 27-02-2022 12:21AM

If in doubt turn off the main isolator

Light switch never really isolates anyhow with looped neutrals unless you have a single t+e at the luminaire , light switches are not designed to isolate anyhow only control the light

MCB may not even isolate either if your in bad luck separating neutrals and there's a borrowed neutral connected

kirk. · 27-02-2022 12:24AM

You're supposed to be proving the supply is dead after switching off which can be problem for DIY

At a minimum you want a voltstick if you're not doing above

Gant21 · 27-02-2022 12:27AM

A Chicken stick is a visual guide at best. Prices of multi meters are so cheap I would recommend a meter. A phase tester would be better than a chicken stick and that’s clutching at straw’s

kirk. · 27-02-2022 12:37AM

What's a chicken stick

If you're deriding the voltstick you probably don't use them very much

Phase testers and multimeters are not much good

goingnowhere · 27-02-2022 12:39AM

4 groups of incoming wires

CPC/Earth yellow/green

Neutral blue

Brown with black switched live

Brown live <-DONT CONNECT TO THIS

kirk. · 27-02-2022 01:12AM

I never liked that 3-plate system except for bungalows maybe where it was a convenient system for wiring

Most things domestic should be idiot proof so the loop to switch and single t+e to the light was a safer system where the homeowner is liable to be changing fittings

Josh2015 · 01-03-2022 07:51AM

Is the purpose of the 3 unswitched wires to provide power to other lights independently of this light?

Must these 3 wires be joined to the same single connector.

kirk. · 01-03-2022 08:14AM

https://www.boards.ie/discussion/comment/118712111#Comment_118712111

Ya that's it and they go back the way they are

Josh2015 · 01-03-2022 08:19AM

Why are there 2 neutral wires as opposed to just one?

meercat · 01-03-2022 08:44AM

https://www.boards.ie/discussion/comment/118712135#Comment_118712135

One is fed from previous light (or distribution board)

the other then connects to the next light

the last light on the circuit will only have one

kirk. · 01-03-2022 08:52AM

https://www.boards.ie/discussion/comment/118712135#Comment_118712135

The neutral and feed are both being looped from light to light to supply each one

There's 3 feeds cos you have to drop one to the switch and the single back (black tape at the light there ) switches on the light

I don't really like it for domestic , the single t+e at the light , supplied from the switch is a better system

Neutral at switch then also covers you for smart wiring

Josh2015 · 01-03-2022 10:42PM

have managed to install the LED light. It requires the light switch on the wall to be left on 24/7 in order that the remote control can turn the light off and on, change brightness etc.

Is it safe for the wall switch to be in the on position continuously?