How to calculate R1R2 and verify Zs

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How to calculate R1+ R2 and verify Zs. In this video for #electricians, I talk about calculating R1 + R2, adjusting for operating temperature and verifying Zs. WATCH NEXT:

This video is intended for electricians and those working in the electrical industry in the UK. All thoughts are my own.
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Hi James thanks for the video help me a lot, one question if I’m using a 2 core armoured and the steel as the cpc how do I calculate my r1+r2.

DeanElliott-iixn
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