The measured voltage has not changed. The design voltage is now 230v and the allowed tolerances on supply voltage have changed to be the sMe as rest of Europe
Any reason why you did not choose an RCBO??
I was told to wire up a similar set up with 63 amp MCB in place of the 32amp in the Main Fuse board. A secondary fuse board with 32 amp RCBO and 32amp RCB out of the original main fuse board.
The supply would go some 5 metres to the garage ending in an isolator. I could then hard wire the Transwave static converter and also a 32 amp socket for a lathe (still to be purchased) and have two wall three phase sockets. One for the 5hp 3 phase lathe and one for the three phase belt grinder.
The guy said he would then come and test and check it and certify it if he was happy.
Any reason why this would not work??