DIY Doctor

How to Wire up a 2 Gang Switch in new Shed

Postby singhstar » Tue Dec 24, 2019 1:41 pm

Hi All,

I've setup some electrics in our new shed with a seperate consumer unit and have ran a 1.5mm 3 core to an LED batton which then rings to the switch but I also have an exterior light that I want to add to the second switch on the plug.

Could someone please tell me where the wires go so that each switch will control 1 interior light and the other switch for outside.

I have added an image of exactly how it currently is.

Thank You for your help in advance.
Attachments
2 way wire.jpg
singhstar
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Postby Mr White » Tue Dec 24, 2019 7:29 pm

You have wired it wrong before you start.

You should take a twin and earth from the 6A mcb to the switch. (I will call this cable M)
You take a twin and earth cable from each light position to the switch. (I will call these Lt1 and Lt2)
(You will now have 3 cables at the switch, each with 3 cores)

You connect* the earth of M to the earth of Lt1 and the earth of Lt2
You connect* the neutral of M to the neutral of Lt1 and the neutral of Lt2

This will leave you with 3 wires.

You connect the live of cable M to the switch terminal you call L (Are you sure it does not say C on the switch?) You also need to take another short wire from this terminal L to the other terminal L

You now have 2 wires left. (One each from Lt2 and Lt1)

You now connect the wire from Lt2 to the switch terminal marked L1
You now connect the wire from Lt1 to the other switch terminal marked L1

You then install the lights, and connect the live neutral and earth to the respective terminals of each light.

You then get a competent person to test and connect to the consumers unit.

* Under no circumstances can you use the other switch terminals as connectors, you should use connector block or better still "wago connectors"

You will also require earth sleeving, for the earth wire on the twin and earth.
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Postby singhstar » Wed Dec 25, 2019 6:07 am

Hello sir

Thank you for this.
I will carry this out later today.

Appreciate the help.
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