I have only just found the self build wiki as a result of a link on
laminate flooring thread and have been having a browse:
http://www.sbfaq.borpin.co.uk/dokuwiki/doku.php


In the electrics section, regarding cable capacities it says:
The current carrying capacity of typical cables a
6242Y T&E : 1.0mm2 14A
6181Y Single: 1.0mm2 11A

Why is the capacity of the single significantly less than the T&E?

I would have thought it would be the other way round as there is
potentially twice the current flowing in the T&E cable and hence a
higher heating effect.