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I think we have ended up slightly at cross purposes. I have no issue with anyone using OSG, BS7671, Pro Certs, or any other reliable reference of the resistance of copper in order to work out expected R1+R2 values.Okay, if i had a radial circuit wired in 6mm/6mm swa and the measured R1/R2 was 0.16ohms. What table or resistance value would you personally use to calculate the length of that circuit as a reference point, and what length would you calculate?
Since you disagree with using the onsite tables and the procert one, im curious what you would use?
My emphasis was intended to be on the "all the OP needs".
I'm a little bit concerned that anyone is having to undertake EICRs and asking some of the questions above, apparently without being provided with the latest regs book or OSG.
I don't mind using this forum to further my own understanding and in turn to try and help other people increase their understanding, but sometimes it feels like people are put in impossible situations by their employers and are expected to run before they can walk.