Flame-retardant cable

Aluminum alloy core power cable is a new type of material power cable made of rare earth high-speed iron aluminum alloy for electrical use as the conductor, and manufactured by advanced technologies such as special pressing process and annealing treatment. Aluminum alloy core power cables make up for the shortcomings of pure aluminum cables in the past, greatly improving the bending performance, creep resistance and corrosion resistance of the cables, and can ensure that the cables maintain stable continuous performance under long-term overload and overheating. The electrical conductivity of aluminium alloy is 61.8% of that of the most commonly used reference material, copper IACS, and its current-carrying capacity is 79% of that of copper, which is superior to the pure aluminium standard. Under the same volume, the actual weight of aluminium alloy is approximately one third that of copper. Therefore, when the current-carrying capacity is the same, the weight of aluminum alloy core cables is approximately half that of copper core cables. Replacing copper core cables with aluminum alloy core cables can reduce the weight of the cables, lower installation costs, decrease the wear and tear of equipment and cables, and make the installation work easier.

Flame-retardant type

According to the GB/T19666 standard, flame-retardant cables should have ZA, ZB, ZC, and ZD added before the common model.

The rated voltage U0/U is 0.6/1kV.

The operating temperature of the cable conductor is 90℃.

When a short circuit occurs (with the longest duration not exceeding 5 seconds), the temperature of the cable conductor shall not exceed 250℃.

4. The ambient temperature during cable laying should not be lower than 0℃, and the minimum bending radius is as follows

Single-core cables: When installing unarmored cables, the bending radius shall not be less than 20 times the outer diameter of the cable; when installing armored cables, the bending radius shall not be less than 15 times the outer diameter of the cable.

Multi-core cables: When installing unarmored cables, the bending radius shall not be less than 15 times the outer diameter of the cable; when installing armored cables, the bending radius shall not be less than 12 times the outer diameter of the cable.

Interlocking armored cable: The bending radius during installation shall not be less than 7 times the outer diameter of the cable.