david nelson Posted October 22, 2014 Share Posted October 22, 2014 I am having a sort out and have loads of wire around. Is there a way to tell what amp rating the wires have? David Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted October 22, 2014 Member Share Posted October 22, 2014 What sort of wire... typical thin single core stuff for cars? Jonathan Link to comment Share on other sites More sharing options...
CharlesElliott Posted October 22, 2014 Share Posted October 22, 2014 Ideally you need to at least measure the core size. If you know it is Thinwall (typical for automotive use), you can measure the outer diameter and extrapolate from there.This page gives you outer diameter and amp rating for Thinwall for example. Link to comment Share on other sites More sharing options...
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