The risk is violating the code. Using wire that is not listed or not approved by the manufacturer of a system voids warranties and listings. Nothing may happen but then again the house could burn down and you will have to answer for it. Failure to follow manufacturers instructions and parts not listed for its application puts the liability right in your lap. With out specific testing of the zip wire and lights, there is no way telling what will happen. More then likely nothing will but you have no way of knowing and do you want to risk your liability for the installation with no back up? I find it hard to believe your company's insurance would pay out a claim if it were ever to come to that. Odds or slim it would ever happen. Doing it right the first time lessens the probability
