[ground connections for LED channel letters]

Well, the only reason they are able to make us bond the channel letters is because of article 600.

600.24 addresses class 2 wiring systems in signs and says you have to comply with 600.7. Which has you bonding your LED letters in the exact same manner you would for neon.

Running a grounding or bonding conductor outside of conduit is not allowed. 600.7 (b)(7)(b)(7) (b)Bonding conductors installed externally of a sign or raceway shall be protected from physical damage.

The simplest solution is to use a manufactured cable #14 in size with the required green wire. No conduit required then.

600-7 second paragraph states when non-metallic conduit is used and a ground wire is required, it shall be installed separate and remote from the non metallic conduit. I guess its different for nonmetallic conduit

[ground connections for LED channel letters]

You can run the ground wire in the same flex and through the same hole as the LED wire, and it can remain exposed in the wall without conduit or even a plastic jacket. The ground rings are an Electrobits product so maybe call them directly for a spplier with inventory. I heard that Electrobits was "reorganizing," not sure if this is true or not.

When some of the cities down here in Florida require that low voltage systems require ground, despite the 411 code where it states that nothing less than 60v's shall be grounded, we use a terminal bar and bring all the grounds back to a common bar and then back to the house ground. This is only required if we don't use metallic flex, which bonds the letters as long as all contacts are metal to metal and jump together in some way back to the can.

I agree that ground low voltage is a waste but te inspectors need something to gripe to about and God forbid you express your knowledge of your choosen profession.

As I always say, those who can do, those who can't work for the city!!!