NEC210.25 (B)
In a small mixed use (2 small dwelling units and 2 commercial spaces) the owners want to change a storage space into a studio apartment. A 200 amp house panel in the common area feeds a couple small house loads. They want to feed the new apartment from the existing house panel. This violates NEC210.25 (B). As a remedy they want to mount a small subpanel next to and fed from the existing 200 amp house panel, make the new panel the house panel and change the existing 200 amp house panel to the panel for the apartment. This would appear to meet NEC 210.25 (B) and NEC 240 as the apartment tenants would have access to overcurrent. (The entire building is fed from an I-line panel-there is no separate metering.) It seems excessive and redundant to mount a subpanel for the house loads but it may be necessary to meet code. Any thoughts?:?
In a small mixed use (2 small dwelling units and 2 commercial spaces) the owners want to change a storage space into a studio apartment. A 200 amp house panel in the common area feeds a couple small house loads. They want to feed the new apartment from the existing house panel. This violates NEC210.25 (B). As a remedy they want to mount a small subpanel next to and fed from the existing 200 amp house panel, make the new panel the house panel and change the existing 200 amp house panel to the panel for the apartment. This would appear to meet NEC 210.25 (B) and NEC 240 as the apartment tenants would have access to overcurrent. (The entire building is fed from an I-line panel-there is no separate metering.) It seems excessive and redundant to mount a subpanel for the house loads but it may be necessary to meet code. Any thoughts?:?