I need to complete the 2nd phase of a project started 3 yrs ago. Did a remodel on a house with a 400/320 A meter assembly with 2 200 A main breakers in 1 assembly. The project was intended to prepare for a 200 A service/breaker to the residence interior and an additional 200 A breaker for future for a swimming pool and maybe car chargers. Service requirements have changes as now we are into 2020 nec. FPL brought in 4/0 xhhw hots and a 2/0 neutral ( aluminum ). At the time, it was grounded with #3 thwn cu to a grounding plate, 2 # 6's to grounding rods and #6 to building steel. I'm sure I have to upgrade the gec and ground to the building steel.
Question is what size, based on 400 A wiring, the 4/0 aluminum feed, or the 250 mcm aluminum going to the interior panel ( shared conduit, upgraded 1 wire size ).
Will also need to add a couple of surge protectors ( outside meter center included a 200 A 8/16 panel, has room for a surge protector ) and a change to the original meter center. It was designed ( 3 yrs ago ) with 2 200 a breakers, one was installed to feed the house. Now the code has changed, the new meter center has a separate
compartment for each 200 A main breaker. I intend to use the one each of the existing 2 position load lugs at the meter can to add a new 200 A outdoor load center with a 200 A main allowing me to feed the pool equipment and allow for a future car charger or 2...
Thanx, dhsvcs
Question is what size, based on 400 A wiring, the 4/0 aluminum feed, or the 250 mcm aluminum going to the interior panel ( shared conduit, upgraded 1 wire size ).
Will also need to add a couple of surge protectors ( outside meter center included a 200 A 8/16 panel, has room for a surge protector ) and a change to the original meter center. It was designed ( 3 yrs ago ) with 2 200 a breakers, one was installed to feed the house. Now the code has changed, the new meter center has a separate
compartment for each 200 A main breaker. I intend to use the one each of the existing 2 position load lugs at the meter can to add a new 200 A outdoor load center with a 200 A main allowing me to feed the pool equipment and allow for a future car charger or 2...
Thanx, dhsvcs
