Hi

I'm moving into a new workshop but I can't figure out whether there is
3 phase already installed or not.

There are 4 large fuses as the mains comes into the building. I guess
that 3 are lives and one neutral. Could be wrong though. Two of the
lives are currently connected to for single phase metered domestic
use.

There is only metering setup for single phase though.

What is the best way to proceed? I would prefer 3 phase if possible
and within cost constraints but might go for a Transwave or similar if
the 3 phase is too expensive to set up.

Any thoughts appreciated.

TIA

NIcholas