bcm
Member
- Location
- Atlanta, Georgia
- Occupation
- Engineer
Fellow sparkies,
Please see the attached sketch.
I'm working on a project with 2 fenced areas that share a fence line. One area is denoted as the "utility area" and the other is denoted as the "customer area". The utility area contains an H-frame with the utility meter, service entrance rated disconnect, and a 200A circuit breaker panel with integrated MTS (for a future generator). That main panel feeds several pieces of equipment in the utility area including a GFCI convenience outlet mounted to that H-frame.
One of that panel's breakers then feeds a disconnect switch on its own H-frame that protects a telecom cabinet in the customer area. The telecom cabinet includes its own circuit breaker panel (proposed carrier panel). The customer folks want to have a GFCI convenience outlet in the customer area (on the H-frame with the disconnect) that is fed by the utility area circuit breaker panel.
The thought behind this is that if the customer techs need to shut off the carrier panel to do work, they still have a functioning receptacle they can use to power their tools since utility area panel will still be powered. These are just fenced areas. No buildings involved, no sub-metering, one customer.
Does putting the receptacle in a different fenced area from the panel that feeds it violate the NEC? I'm thinking of 225.30 or 230.3 but they only seem to involve separate services, not branch breakers. Maybe there's something else that applies? If so, would affixing a permanent label to the receptacle (indicating the utility area breaker panel is the supply) be the solution?
Thank you in advance for any input you can offer!
Please see the attached sketch.
I'm working on a project with 2 fenced areas that share a fence line. One area is denoted as the "utility area" and the other is denoted as the "customer area". The utility area contains an H-frame with the utility meter, service entrance rated disconnect, and a 200A circuit breaker panel with integrated MTS (for a future generator). That main panel feeds several pieces of equipment in the utility area including a GFCI convenience outlet mounted to that H-frame.
One of that panel's breakers then feeds a disconnect switch on its own H-frame that protects a telecom cabinet in the customer area. The telecom cabinet includes its own circuit breaker panel (proposed carrier panel). The customer folks want to have a GFCI convenience outlet in the customer area (on the H-frame with the disconnect) that is fed by the utility area circuit breaker panel.
The thought behind this is that if the customer techs need to shut off the carrier panel to do work, they still have a functioning receptacle they can use to power their tools since utility area panel will still be powered. These are just fenced areas. No buildings involved, no sub-metering, one customer.
Does putting the receptacle in a different fenced area from the panel that feeds it violate the NEC? I'm thinking of 225.30 or 230.3 but they only seem to involve separate services, not branch breakers. Maybe there's something else that applies? If so, would affixing a permanent label to the receptacle (indicating the utility area breaker panel is the supply) be the solution?
Thank you in advance for any input you can offer!
