Insulated and sheathed singles are still in use throughout Ireland.
Mystery grey wire in UK light switch
- Thread starter Alex Pollitt
- Start date
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- Joined
- 26 Dec 2020
- Messages
- 5
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- Country
333rocky333 is in fact correct! There is a red inner. I couldn't see this until I took a close up photo with my phone. To my tired old eyes (even with my reading glasses on) I couldn't distinguish the red from the copper. 
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