Belden makes so dang many variations that I would simply call up their tech rep.
They seem to have every imaginable variation on the theme.
Since 60Hz ripple can degrade many digital and DC values, they've been at it for quite some time.
It's extremely relevant to know just how many amps are being pumped, whether you're going to have to run this stuff in a plenum, whether it's always in pipe, etc.
You don't want to order out cable that -- while cheaper -- is pretty restricted. For it's a sure thing that at some point change orders are going to have you running DC power in free space. LED strips just lend themselves to that.
BTW, you don't need a 600 V rating if it's impossible for the Service to provide no more than 180 peak volts over ground and 300 VAC peak to peak. [ 208Y120 VAC ]
"...the maximum voltage of any conductor..." means exactly that. It's not a reference to the rating of common building wire -- 600VAC(RMS).
If your Service is the ever popular 480Y277 VAC -- you'll need the full 600V rating.
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As a heads up: strobing lamps actually trigger migraines!
This has been absolutely proved by medical experiments. As a partial cure, sufferers are provided polarizing glasses -- whether they need corrective lenses or not.
Even the general public finds the ripple in fluorescent strip lamps unpleasant. This effect is hugely repressed by the coiled design of CFLs. (The E&B fields get wound up and back right along with the conducting vapor.) Sick and dying fluorescent tubes go through such antics all the time; which you've probably seen.
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After all of your effort, you don't want occupants complaining about the quality of illumination.
