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Ring the local supply company , I've come across unrodded tranformers , or nicked rods and cables at the suppliers transformers . Especially on transformers mounted on poles . But sometimes it's just down to the location. As long as it complies with bs 7671 and the touch voltage rule then there...

AM2 , acheivement measurement 2. Under city and guilds , apprentices sit 2 AM tests . An AM1 and AM2 , an AM1 is usually sat after the first year and is used to check basic circuit knowledge and clipping t+e , bending radii etc . AM2 involves a complete installation within a set timeframe ...

If your inspecting a new installation then you should be doing r1+r2 on every point (to prove earth cont and correct connection of accessories ) and then Zs the last point in the circuit to prove the Zs reading will give you 0.4 (0.2 on tt system) disconnection (unless an rcd is in circuit). On...