18TH EDITION AMD 2

AJJewsbury:

Take it up with CENELEC and the IEC. I understand that the IET's hands are tied.

Surely the IET have some leeway - after all we still allow ring circuits and have a prohibition on plastic CUs that don't align with the wider standards.


  - Andy.

Indeed and differences on reduced CPCs in twin and earth , the 6ka exception for consumer units downstream of a 100A fuse, reduced low voltages, transformer isolated shaver sockets, not really permitting mix and match  home brew consumer units, and a shed load of other stuff that is UK specific.

There are mechanisms for two committees to disagree, and one committee is perfectly entitled to kick back and request  clarification/ evidence/ justification of recommendations,  and even after that is permitted a degree of or derogation from the decisions of the other. After all,  if that were not the case the UK committee could safely be dismissed and be replaced by contracting translators. Schucko sockets and L-N polarity reversal anyone ?


In any case in the EU countries that do have AFDD (Germany is the one I know about, mainly) it is 16A combined lights and power circuits, not 32A ones that come under scrutiny,  I detect the UK tendency to gold plate the requirements, rather than to be practical.

There is already a huge gulf between what is in service, and the ideals of regs land - look at the discussion of the lighting circuits without CPC, this sort of thing makes it wider -  or will missing AFDD be the next 'is this a C1? ' debate item..

AJJewsbury:

Take it up with CENELEC and the IEC. I understand that the IET's hands are tied.

Surely the IET have some leeway - after all we still allow ring circuits and have a prohibition on plastic CUs that don't align with the wider standards.


  - Andy.

Indeed and differences on reduced CPCs in twin and earth , the 6ka exception for consumer units downstream of a 100A fuse, reduced low voltages, transformer isolated shaver sockets, not really permitting mix and match  home brew consumer units, and a shed load of other stuff that is UK specific.

There are mechanisms for two committees to disagree, and one committee is perfectly entitled to kick back and request  clarification/ evidence/ justification of recommendations,  and even after that is permitted a degree of or derogation from the decisions of the other. After all,  if that were not the case the UK committee could safely be dismissed and be replaced by contracting translators. Schucko sockets and L-N polarity reversal anyone ?


In any case in the EU countries that do have AFDD (Germany is the one I know about, mainly) it is 16A combined lights and power circuits, not 32A ones that come under scrutiny,  I detect the UK tendency to gold plate the requirements, rather than to be practical.

There is already a huge gulf between what is in service, and the ideals of regs land - look at the discussion of the lighting circuits without CPC, this sort of thing makes it wider -  or will missing AFDD be the next 'is this a C1? ' debate item..