I am designing an electronics package for a camera that pans back and forth 180˚ but never completes a revolution. Currently I have the power cable going down along the pan axis and out through an IP-68 cable gland in the bottom of the enclosure. This works for weather protection but I have concerns about the cable fatiguing over time due to twisting back and forth. Although the camera does not spin around and around, it does pan back and forth a few hundred times a day. The cable is secured and strain relieved at the top, then runs about 12" unsupported until reaching the cable gland. Thus there would be about 15˚ of "twist" per inch. Does this raise any concerns with you all? Can you think of any immediate issues? Or are there resources for cable fatigue in these types of applications? Most of what I've found online is for high-speed motion or CNC, which this is neither.
See attached for quick sketch