Conflicting information from electricians... which is right?
Have a multifamily building that needs to have the fuses replaced with circuit breakers. Simple enough.
There's currently 200 amps coming in from the street and fuses have been historically unremarkable... I don't think a basement fuse has been changed in years. There's a gang with several connected meters in a row, with small 30 amp fuse boxes above them with cables which lead to the units.
One electrician tells me we need to install these massive boxes, each holding a meter and a 100 amp breaker, and run a cable to each apartment. Another tells me all we need to do is add a 100 amp breaker above the existing row of meters and run a cable to each unit. Which is proper?
Changing the fuses to breakers in the units will be pretty straightforward, and hopefully that's where the project will end. The building has knob and tube wiring. Is there anything else we might be required to do?
Another question, I think this one's OK but will ask anyways. With 200 amps coming in, the total of main breakers will be some 800 amps. Neither electrician thought we'd have to upgrade the 200 amp service. Sound right? Currently the basement fuses and existing breakers in the basement total around 300 amps.
There's a big difference in price between installing the large breaker/meter boxes in the basement and keeping the existing meter boxes and just adding just a 100 amp breaker above each.
Which route should we take? Each electrician says the other is wrong.
Anything else we should be aware of?