Is my sparky or Citipower wrong?
So I have a brand new house, brand new MSB and aerial lead-in. We have a 3phase, 80A service from Citipower as confirmed by them yesterday via phone.
The issue is that original sparky installed a 50A 3ph main breaker (was supposed to be 63A breaker, but he didn’t have one in the truck on install day), and he is now in the wind.
So I asked my new sparky to quote me on whether the main breaker can be upgraded to 63A , as we have issues with overload on L1 with main breaker tripping when an EV is charging at 11kw (3ph) and powerwall is charging at 10kw( single phase, L1).
New sparky has checked everything and said yep, no worries can install a new 63A main breaker - But that he’ll need a Citipower truck visit to isolate and reconnect mains, which will be $1000+ by itself.
But then I spoke to Citipower and they said nah, no truck visit required, just have your sparky pull the service fuses himself to isolate.
Sparky is still saying nope, he’s not allowed to touch the service fuses and won’t do the work without a Citipower truck visit.
So please enlighten me as to who is correct here - and ideally provide a link to a relevant document I can show my sparky if he is incorrect.