1. Historical practice has proven that aluminum alloy cables, since their development and use in the United States since 1968, have been in use for 43 years. The product has become quite widespread, with a market share of 80% in North America. After 43 years of practical use, aluminum alloy cables have never experienced any failures, making them safe. 2. Inspection and Certification: Aluminum alloy cables have passed inspections and certifications by authoritative institutions such as the UL in the United States, the CUL in Canada, the SAIGLOBAI in Australia, the China Cable and Wire Inspection Center, the Wuhan High-Voltage Research Institute of State Grid, and the Fire-Resistant Building Materials Quality Supervision and Inspection Center. The aluminum conductors meet the requirements of CSA Standard C22.2, Article 38 for ACM alloy conductors, as well as the performance requirements of GB12706.1--2008 and IEC60502.1's new edition, and the relevant standards of UL for the AA8000 series. 3. Aluminum Alloy Composition and Function: The addition of rare earth elements and iron to the composition of the aluminum alloy conductor greatly enhances its conductivity and connection performance. Particularly, when iron is added during the annealing process of the conductor, it produces high-strength anti-creep properties. In cases of current overload, iron maintains a continuous connection, preventing the aluminum alloy conductor from undergoing creep. Creep can be highly detrimental to cables. If cables undergo creep, the original contact points may not be tightly pressed, leading to a rapid increase in contact resistance. Current flow can cause overheating at the joints, and without regular maintenance, safety hazards may arise. It is crucial to address cable creep issues. Creep refers to the gradual, irreversible deformation of metal under the influence of temperature, external forces, and its own weight over time. 4. Flame Retardancy: The insulation material of aluminum alloy cables uses flame-retardant silicone cross-linked polyethylene (XLPE), and the process employs a self-locking armor structure. Its heat dissipation performance is far superior to that of PVC sheathing materials, allowing for rapid heat dissipation. After the flame is extinguished, the flame can quickly be extinguished without spreading to other materials, making the flame retardancy extremely excellent. The use of new materials and processes in aluminum alloy cables ensures their enhanced safety for use.
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