What requirements must outdoor cables meet? Can ordinary indoor cables be used as substitutes?

Answer :

The use of standard indoor wiring is strictly prohibited outdoors; only outdoor-specific weather-resistant cables must be employed.

Due to the weak material of indoor cable sheaths, they are only suitable for normal-temperature and dry indoor environments and lack resistance to aging and ultraviolet radiation. When used outdoors, issues such as skin cracking, peeling, water ingress, and electrical leakage can occur within just a few months.

Outdoor-specific cables feature comprehensive weather resistance: UV protection, waterproof and moisture-resistant properties, cold and high-temperature tolerance, acid and alkali resistance, anti-aging performance, as well as tensile and wear resistance. They are designed to withstand harsh outdoor conditions including prolonged exposure to direct sunlight, rain, snow, wind, frost, and humid environments without cracking or electrical leakage. With their corrosion-resistant and durable construction, these cables are ideal for various outdoor applications such as overhead wiring, courtyard cabling, construction site wiring systems, and exterior wall installations.