When the NEC talks about a 'ground conductor', is it referring to the white grounded conductor or the green / bare equipment grounding conductor - or both or either in certain circumstances?
Here's a for example:
2008 NEC 410.130(G)(1) General ...bla, bla, bla, fluorescent lights need to have a disconnecting means...
(2) Multiwire Branch Circuits. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the ground conductor.
At work we started to receive 4' fluorescent lights (ahem... luminaires) that had a 'disconnecting means' attached to the ballast wires about 3 months ago. They disconnect the hot and grounded wires. Normally, the EGC is terminated with a ring terminal and screwed to the body of the light e.g. I assume the NEC is referring to the grounded conductor in 410.130(G)(2) and not the EGC. Is this assumption wrong? What do y'all think the NEC means by 'ground conductor' - not just in the above example but in general???
Thanx,
-mac
Here's a for example:
2008 NEC 410.130(G)(1) General ...bla, bla, bla, fluorescent lights need to have a disconnecting means...
(2) Multiwire Branch Circuits. When connected to multiwire branch circuits, the disconnecting means shall simultaneously break all the supply conductors to the ballast, including the ground conductor.
At work we started to receive 4' fluorescent lights (ahem... luminaires) that had a 'disconnecting means' attached to the ballast wires about 3 months ago. They disconnect the hot and grounded wires. Normally, the EGC is terminated with a ring terminal and screwed to the body of the light e.g. I assume the NEC is referring to the grounded conductor in 410.130(G)(2) and not the EGC. Is this assumption wrong? What do y'all think the NEC means by 'ground conductor' - not just in the above example but in general???
Thanx,
-mac