This rule, found throughout multiple NEC articles (for instance, Article 358. 26 for PVC), specifies that the total angle of all bends between any two pull points—such as junction boxes, conduit bodies, or cabinets— must not exceed 360. Simply put, a minimum bend radius is how tightly you can bend a wire or cable without damaging it or compromising its mechanical and electrical performance. Microwave engineers know that sharp corners and right-angle bends have their drawback at high frequencies. There is a lot of discussion among SI engineers about the impact of right-angle turns in high-speed routing, but it cannot be denied that sharp corners create discontinuities, which eventually. Bending the wire at a right angle is not going to change this because the number of objects that can diffract the electron has not changed and the collisions are on a nanometer scale, which in that world would be unaffected by the bend. They're a vital part of any structured cabling system, ensuring both practicality and compliance with safety standards.
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