What is the typical use of armors in electrical cables?

Armors are typically used in electrical cables primarily to protect against severe physical damage. This additional layer of protection is crucial in scenarios where cables may be exposed to harsh environmental conditions, mechanical stress, or potential impacts that could compromise the integrity of the conductors and insulation. By providing this robust defense, armors ensure the longevity and reliability of electrical systems, especially in industrial settings or outdoor installations where cables are more vulnerable to external threats.

The other options, while they touch on aspects related to cable design, do not accurately represent the primary function of armoring in electrical cables. For instance, flexibility is generally enhanced through the choice of materials and construction techniques, rather than through armoring. Magnetic shielding is also not a function of armor; it is achieved with different materials and designs meant specifically to reduce electromagnetic interference. Lastly, while electrical conductivity is critical in cable design, armors do not enhance conductivity; their purpose is protective rather than conductive.