Sven,
I think that a like-for-like replacement should be excepted, in this case.
Only where new installation work takes place
should there be a restriction.
One thing I would like to see, is that they have people at hardware stores that sell electrical gear, to have some sort of idea about the basics of Electricity or Electrical work, how are they supposed to know what wiring system is legal or what type of fiiting complies for such and such installation?. [Linked Image]