I'm installing a subpanel that will supply only 240V 2-pole devices. I'm positive I never will need the capability to run 120V (1-pole) devices. Am I required to run a neutral wire to the subpanel? Please don't provide answers that recommend I do it "either way" for future-proofing. I only want to know what is code-required.
The code for feeders talks a bunch about the required size of feeder grounded wire, but as far as I've seen it never comes right out and states that it is required to provide a grounded wire. I am of course providing a grounding wire.