Ok probably stupid question
I'm pretty sure this cant be done ..
We have 2 x 35mm 1ph armoureds feeding a building..
the cables run through ducting next to each other.
The building is to be modified and requires 1 x 3ph supply...
Is it against regs to use one cable as L1 , N , E
And the second cable as L2, L3, E Or L2, L3, N
