See attach picture, a retail building with several tenants are powered from main wireway via utility furnished tap can, I thought NEC limits to max. 6 disconnect switches per service after the tap can? Looks like picture shows 7 disconnect switches installed, can someone explain? If we have more than 6 tenants, what can we do? Install a main disconnect switch before / after tap can? Or have two service feeder, each serves one tap can? (the tap can is fed direct from utility pad mounted xfmr via underground conduit).