Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

Why should the outer jacket of coaxial cable be resistant to ultraviolet light?

• A. To improve electrical conductivity
• B. To prevent damage from environmental factors
• C. To avoid interference from other signals
• D. To decrease the cable's weight

Answer: (B)

The outer jacket of coaxial cable needs to be resistant to ultraviolet (UV) light primarily to prevent damage from environmental factors. Coaxial cables are often installed outdoors or in areas where they are exposed to sunlight. UV radiation can cause degradation of the cable materials over time, leading to cracking, brittleness, and ultimately failure of the cable. When the outer jacket is made from materials that are UV-resistant, it ensures that the cable maintains its integrity and performance over its expected lifespan. If the jacket were to deteriorate due to UV exposure, it could expose the inner conductor and insulating materials to moisture, dirt, and other contaminants, which could lead to signal loss or even complete failure of the communication system. While it could be argued that improving electrical conductivity, reducing interference, or decreasing weight might relate to coaxial cable performance, these factors are not connected to the requirement for UV resistance. The primary concern is protecting the cable from environmental damage, ensuring reliable operation in various outdoor settings.

The outer jacket of coaxial cable needs to be resistant to ultraviolet (UV) light primarily to prevent damage from environmental factors. Coaxial cables are often installed outdoors or in areas where they are exposed to sunlight. UV radiation can cause degradation of the cable materials over time, leading to cracking, brittleness, and ultimately failure of the cable.

When the outer jacket is made from materials that are UV-resistant, it ensures that the cable maintains its integrity and performance over its expected lifespan. If the jacket were to deteriorate due to UV exposure, it could expose the inner conductor and insulating materials to moisture, dirt, and other contaminants, which could lead to signal loss or even complete failure of the communication system.

While it could be argued that improving electrical conductivity, reducing interference, or decreasing weight might relate to coaxial cable performance, these factors are not connected to the requirement for UV resistance. The primary concern is protecting the cable from environmental damage, ensuring reliable operation in various outdoor settings.