DIY Doctor

Don't Understand Wiring for External Light

Postby MarshalOldgit » Wed Jul 10, 2019 3:12 pm

I'm replacing an external light which simply asks me to connect live,neutral and earth to it. But, instead of 3, I have 4 wires in the cable:
Yellow with a red sleeve
Blue
Red
Yellow/green striped.

Any ideas how I should attach these 4 wires to the three terminals I have?
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Simply Build It

Postby Mr White » Wed Jul 10, 2019 6:26 pm

ball.jpg


The colours used are decided by the person who installed it, there is no "specific colour guide"
It is unusual to have a 3 core and earth, so the question is what was there before you decided to add the light.
The one with the red mark could be live or it could be switched live, and in any case which is the neutral.
Unless you can find the other end of the cable and take it from there, I would suggest you call in a competent person to do the job for you. (It doesn't have to be an electrician)
And never rush / do something you are not competent with as unlike water where you get wet, electricity kills and does not give a second chance.
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