Michael Merzenich, Ph.D. is a pioneer in brain plasticity research and the author of more than 150 peer-reviewed articles. He has received numerous awards and prizes, has nearly 100 patents and has been featured in hundreds of books covering topics such as learning, rehabilitation and plasticity.
There shall not be more than the equivilent of four quarter bends (360 degrees total) between pull points, for example, conduit bodies and boxes. ansi/tia/eia-569-b: 8.8.2.2 Bends
The raceway articles in the NEC state that cables shall be permitted in the raceway as long as the appropriate cable article does not prohibit the practice. If your cable is non-metallic sheathed cable (commonly called Romex or NM) there is no prohibition against installing it in flexible conduit.You should probably put a connector on the free end of the cable to prevent abrasion against the sharp edge of the flex.he only problem I can see with putting romex in conduit is that it would (should) change the rules on the conduits capacity. For example, I believe codes state that if you're going to have two circuits in conduit, the conduit must be a minimum of 3/4.