I have got ideas as to why they are out of favour.
I am not sure if my views are going to be popular, or if they are correct.
Safety standards and public expectations for safety are increasing and the cost the public are willing to pay has decreased.
Have 7288 products have been subjected to cost down work which has compromised the compliance with other standards and the technical details for providing additional protection, which may well have become more demanding?
Have the more demanding requirements for additional protection been recognised by 7671, but not 7288? Therefore excluding them?
Perhaps the committee missed this in earlier versions, and has had to correct it?
Perhaps they never complied?
Why does one of you not write to the IET technical helpline for clarification?
I am not in a position to be able to do that for reasons I can’t & won’t discuss.
Suffice for me to say, it’s not that I am banned or have fallen out with the IET in any way.