Many electrical installations are not covered by NFPA 70, this sounds like one of them!
Wiring methods are in the Index or in the "300's", I've never heard of the "cable connivence system". Wire can be assembled or manufactured in just about any desired properties and characteristic's, but if it's not in the good book(as we know it) that we love to hate or love too otherwise, your flat out of luck. :roll:
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