Inspection Standard 2: Manufacturing Equipment
Mainly inspect whether the enterprise has advanced aluminum alloy cable manufacturing equipment and technical process equipment.
(1) All aluminum alloy conductor rod continuous casting and rolling production line
The key to aluminum alloy cables is the production of aluminum alloy conductors. Therefore, when choosing a manufacturer, you must first look at whether there is an advanced aluminum alloy conductor rod continuous casting and rolling production line. At present, the most advanced aluminum alloy conductor rod production in China The equipment is a continuous casting and rolling production line with Italian technology that can continuously cast large cross-sections (3807mm2, the largest casting cross-section of other Italian imported production lines can only reach 2400mm2). Multi-pass continuous precision rolling can obtain an aluminum alloy rod with moderate rod strength, high volume density, best electrical conductivity, and the most excellent technical indicators. The alloy wire drawn from this aluminum alloy rod is used for aluminum alloy cables The conductive core of the conductor is the best product for the combination of cables. If a factory does not have its own advanced aluminum alloy conductor rod continuous casting and rolling production line, the quality of the aluminum alloy conductor cannot be controlled from the source of production, and the quality of the aluminum alloy cable cannot be guaranteed!
(2) Conductor stranding production line
At present, the stranded conductors produced by the conductor stranding production lines of general domestic manufacturers usually produce aluminum chips and burrs, which damage the insulation, seriously affect the insulation effect, cause safety hazards and shorten the insulation life. At present, the most advanced conductor stranding production line in China is a sub-motor type, PLC program-controlled nano-stranding machine production line. The aluminum alloy conductor produced by nanotechnology has no aluminum chips, no burrs, no oil, no unevenness, and no scratches. No scratches and scratches can most effectively ensure that the cable insulation is free from any damage or damage, and the service life of the ACSR conductor product is much higher than that of similar products.
(3) Aluminum alloy interlocking armoring production line
At present, the most advanced aluminum alloy interlocking armoring machine production line in the world is Canada's KALMARK aluminum alloy interlocking armoring machine production line. This production line is an aluminum alloy tape interlocking armored cable developed in accordance with American technical standards. The special structure of interlocking can ensure that the cable is damaged by strong external force. Even if the cable is subjected to greater external pressure and external impact, the armor layer can also protect the electrical performance of the insulation layer. The structure of the aluminum alloy non-magnetic armor layer also effectively improves the flame-retardant level of the cable, greatly reducing the fire or fire hazards to the SWA cable, and the non-magnetic aluminum alloy armor also greatly reduces the cable eddy current loss. Compared with steel tape armor, the aluminum alloy tape armored structure is lighter in weight, has no eddy current loss, is convenient to lay, easy to bend, and does not require bridge installation, which can reduce installation and laying costs by 20%-30% and improve installation efficiency.