Elongation is an important indicator of the mechanical properties of a conductor, and is an important indicator of the pros and cons of the product and the ability to withstand external forces. It is also an important indicator for testing the mechanical properties of cable conductors. The elongation of the aluminum alloy cable after annealing can reach 30%, while the elongation of the copper cable is 25%, and the elongation of the ordinary aluminum rod is 15%, which is an important index that can replace the aluminum core cable and the copper cable.
2, aluminum alloy cable flexibility
Torsion test: The toughness of the metal wire is mainly tested, the better the toughness, and the more twists can be withstood. An important disadvantage of ordinary aluminum wire is its high brittleness. As long as it is twisted at a certain angle for several times during installation, the conductor will crack, and the crack will generate heat and corrosion, which is an important cause of fire. The use of aluminum alloy cable, due to its good toughness, will not cause cracks, and the safety hazard that occurs during installation is reduced.
3. Bending performance of aluminum alloy cable
Bending test: mainly tests the bending resistance of metals. Materials with uneven material or brittleness have poor bending resistance. According to GB/T12706, the bending radius of copper cable installation, the bending radius of copper cable is 10-20 times cable diameter, the bending radius of aluminum alloy cable is 7 times cable diameter, and the use of aluminum alloy cable can reduce the layout space. It is easier to lay and reduce installation costs.
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Label: Cable Aluminum Alloy Bending Properties Mechanical Properties Bending Test
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