What material is typically used for outdoor cabling?

What material is typically used for outdoor cabling?

• A. Rubber
• B. PVC
• C. Polyethylene
• D. Nylon

Answer: (A)

Outdoor cabling needs a jacket that can withstand sunlight, moisture, temperature changes, and abrasion over long runs. The common choice for this is polyethylene because its jacket is highly resistant to water and UV exposure, remains flexible in cold weather, and is cost-effective to extrude into long lengths. Rubber, while flexible, tends to deteriorate with sun exposure and long-term aging, making it less suitable for outdoor use. Nylon is usually used as a strength member or filler rather than the outer jacket, and while PVC can be used outdoors in some cases, it doesn’t offer the same combination of moisture resistance and UV stability as polyethylene for direct-burial or long outdoor runs. So, the typical outdoor cabling jacket material is polyethylene.

Outdoor cabling needs a jacket that can withstand sunlight, moisture, temperature changes, and abrasion over long runs. The common choice for this is polyethylene because its jacket is highly resistant to water and UV exposure, remains flexible in cold weather, and is cost-effective to extrude into long lengths. Rubber, while flexible, tends to deteriorate with sun exposure and long-term aging, making it less suitable for outdoor use. Nylon is usually used as a strength member or filler rather than the outer jacket, and while PVC can be used outdoors in some cases, it doesn’t offer the same combination of moisture resistance and UV stability as polyethylene for direct-burial or long outdoor runs. So, the typical outdoor cabling jacket material is polyethylene.