I understand that BS 7671 is notionally derived from IEC 60364, but how closely does it actually track it? The Wikipedia page for IEC 60364 shows that it has many of the same chapters, although for example some of the part 7 sections are missing / different.
So for example if I looked at section 521 say in both standards, would I expect to see the exact same sequence of 521.x.y.z's (apart from the occasional .20x) with exactly the same content?
Also, how are amendments handled? E.g. for the proposed Amendment 2 changes, are these things that have already been added to IEC 60364 (such as part 8) and are now migrating into BS 7671? Plus I guess some things that the IET has proposed on their own? For the latter, will they be added unilaterally to BS 7671 then might get backported to to IEC 60364 at some point in the future if the IEC approve? And if they don't approve, we just live with the divergence?
