Do electrical regulations allow for the use of twin and earth cable between
an isolating switch and fuseboard?
About 15 years ago I had an istallation and which appears thoroughly
professionally carried out -
From meter to isolator - normal tails -
From isolator switch to consumer unit - twin core and earth (like cooker
cable - 16mm??)
If OK, what size cable is appropriate for this normal domestic installation
as I want to move the fuseboard (and change to a split load with RCD type)
to avoid crossing cellar which is occasionally under water!!

tia
Hugh