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National standard for electrician round aluminum rod: GB/T 3954-2008
The mechanical and electrical performance standards of pure aluminum rod are: (take A2\A4\A6\A8 four typical models as examples)
Model Tensile strength MPA elongation % 20°C resistivity Ωomm2/m
A2 80-110 13 0.
02785
A4 95-115 11 0.
02801
A6 110-130 8 0.
02801
A8 120-150 6 0.
02801
Under the premise of ensuring tensile strength, the elongation of the four typical models is excellent:
A2 15-23%
A4 13-17%
A6 10-13%
A8 8-11%
In layman's terms, 8030 aluminum alloy conductor integrates the advantages of pure aluminum rod from the mechanical properties, that is, the tensile strength must at least reach the lower line of the A8 rod, and the elongation must reach at least the lower line of the A2 rod, on this basis, the lower the resistivity of the 9.
5MM aluminum alloy rod at 20 °C, the better
.
The creep resistance of 8030 aluminum alloy conductor is 300%
higher than that of aluminum.
Note that it is an increase of 300%, not 300%
of pure aluminum.
That is to say, the creep resistance of qualified 8030 aluminum alloy conductors should reach more than
400% of pure aluminum.
Therefore, it is necessary to claim that the service life of aluminum alloy cables can reach 40 years, and the service life of pure aluminum is 10 years, and it is necessary and must also prove
that the creep resistance of aluminum alloy conductors reaches more than 400% of pure aluminum.
National standard for electrician round aluminum rod: GB/T 3954-2008
The mechanical and electrical performance standards of pure aluminum rod are: (take A2\A4\A6\A8 four typical models as examples)
Model Tensile strength MPA elongation % 20°C resistivity Ωomm2/m
A2 80-110 13 0.
02785
A4 95-115 11 0.
02801
A6 110-130 8 0.
02801
A8 120-150 6 0.
02801
Under the premise of ensuring tensile strength, the elongation of the four typical models is excellent:
A2 15-23%
A4 13-17%
A6 10-13%
A8 8-11%
In layman's terms, 8030 aluminum alloy conductor integrates the advantages of pure aluminum rod from the mechanical properties, that is, the tensile strength must at least reach the lower line of the A8 rod, and the elongation must reach at least the lower line of the A2 rod, on this basis, the lower the resistivity of the 9.
5MM aluminum alloy rod at 20 °C, the better
.
The creep resistance of 8030 aluminum alloy conductor is 300%
higher than that of aluminum.
Note that it is an increase of 300%, not 300%
of pure aluminum.
That is to say, the creep resistance of qualified 8030 aluminum alloy conductors should reach more than
400% of pure aluminum.
Therefore, it is necessary to claim that the service life of aluminum alloy cables can reach 40 years, and the service life of pure aluminum is 10 years, and it is necessary and must also prove
that the creep resistance of aluminum alloy conductors reaches more than 400% of pure aluminum.
