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Still wondering, do you think the aspects of 310.8(D) "Locations exposed to direct sunlight" apply to the low voltage control wire strapped to the exterior conduit?
IMO, since there is no specific requirement for sunlight resistance that applies to low voltage cables, the practice should be allowed. 310 does not apply to low voltage cables, otherwise, the cables would have a lot more info marked on them and we would also know what type of insulation the conductors have.
