Cable for video doorbell

17 Dec 2018
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United Kingdom
Transformer has been placed in consumer unit and it has power.

To power the 0-24v video doorbell can I use 2 core flexible cable such as 1mm or do i need to use 1mm flat cable.

Also is 1mm cable overkill? Could i use 0.75mm?

Doorbell is less than 2m away from transformer
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Since in a consumer unit the cable must be 230 volt rated, even when only carrying 24 volt. But as long as 230 volt rated not a problem.
So am i right in saying that i can use 0.75mm or even 0.5mm 2 core flex cable then?
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