What is the minimum bending radius "R" for reverse curves in lead covered cables?

The minimum bending radius "R" for reverse curves in lead-covered cables is critically important because it prevents damage to the cable's insulation and internal components. For lead-covered cables, the recommended minimum bending radius is eight times the overall diameter of the cable. This larger radius ensures that any stress or strain on the cable is kept within safe limits, which preserves the integrity and functionality of the cable.

Using a radius smaller than the specified eight times could risk kinking or crushing the cable, potentially leading to premature failure or exposure to environmental factors. This guideline is established to enhance the longevity and reliability of the cable in various applications. Understanding the implications of bending radius in cable installation is key knowledge for lineman apprentices, as it informs safe practices that prevent damage during handling and installation.