What is the purpose of armor rods in electrical systems?

Armor rods are specifically designed to protect electrical conductors from mechanical and environmental damage. They are typically installed at points where the conductor is subject to abrasion, pressure, or bending stresses. By adding these protective rods, the integrity of the conductor is maintained, preventing premature wear and potential failures due to damage from various external factors, such as wind, ice, and animal interference.

The other options do not accurately reflect the primary purpose of armor rods. While enhancing conductivity, reducing resistance, and insulating high voltage lines are important aspects of electrical system design, they do not represent the function of armor rods. Armor rods are not intended to improve the electrical properties of the conductors; their role is strictly protective. This understanding highlights the importance of using equipment designed for specific protective functions in electrical installations.