Sign

[hhsting]

I have drive thru menu board sign attached sketch. There are 2 single pole 20 amp circuit breakers, under it is terminals and on top of the breakers are two receptacles isolated.

I have one branch circuit with one hot, one neutral, one EGC, one isolated EGC to the sign to power the menu board as well as the two receptacles.

The menu boards are considered their own structure they are outside on pad.

NEC 2014 section 600.6 requires operable switch or circuit breaker. Following questions:

1. Can the circuit breaker acts as the sign circuit breaker 600.6? It would be inside the back cover

2. Would the sign require grounding electrodes per NEC 2014 section 250.32?

 

[hhsting]

I have drive thru menu board sign attached sketch. There are 2 single pole 20 amp circuit breakers, under it is terminals and on top of the breakers are two receptacles isolated.

I have one circuit from panelboard 20A breaker with one hot, one neutral, one EGC, one isolated EGC to the sign to power the menu board as well as the two receptacles.

The menu boards are considered their own structure they are outside on pad.

NEC 2014 section 600.6 requires operable switch or circuit breaker. Following questions:

1. Can the circuit breaker acts as the sign circuit breaker 600.6? It would be inside the back cover

2. Would the sign require grounding electrodes per NEC 2014 section 250.32?

Post #1 I meant to say circuit Not branch circuit from panelboard 20A circuit please see edited above. I am not sure what to call it feeder or branch circuit.

 

[tom baker]

Branch ckt does not require ground rods. Is your ckt breaker in a panelboard or is a supplementary OCPD?

 

[hhsting]

Branch ckt does not require ground rods. Is your ckt breaker in a panelboard or is a supplementary OCPD?

So there are 3 circuit breakers: First is 120V single pole 20A in panelboard feeding the sign/receptacles/2 internal breakers and other two are internal circuit breakers 1 pole 20A in the sign.

The circuit breaker in the menu board sign comes with manufacturer menu board.

The circuit going to the menuboard and to the internal circuit breaker is fed from panelboard inside building with 20A breaker.

 

[Another C10]

The circuit going to the menuboard and to the internal circuit breaker is fed from panelboard inside building with 20A breaker.

I would think this supply your mentioning could be manipulated for powering down sign altogether after hours or run through a timing mechanism.

 

[Another C10]

The menu boards are considered their own structure they are outside on pad.

Unless the codes have changed ..again ... there is only one place of reference for a grounding rod and that's way upstream of all branch circuits being right there at the meter main ... done, any additional grounding rods just allow for fault current to bleed off possibly somewhere else, which isn't the best design.

 

[hhsting]

Going back to post #1 question #1 can the internal breaker serve as sign disconnect 700.6 they would be behind back cover?