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AAAC ケーブルの長所と短所

About the materials of construction, we always see the all alloy aluminum cable(AAAC cable). It is the highest cable product now. So what are the advantages and disadvantages of aaac cable?

Creep Resistance of AAAC Cable

The alloy material and annealing process of the aluminum alloy conductor reduces the tendency of the wire to “creep” under heat and pressure, and the creep resistance is improved by 300% compared to pure aluminum, avoiding the relaxation problem caused by cold flow or creep.

Tensile Strength and Elongation of AAAC Cable

Compared with pure aluminum conductors, the tensile strength of aluminum alloy conductors is greatly improved. Due to the addition of special components and special processing techniques, the elongation rate is increased to 30%, which is safer and more reliable to use.

Connection Performance of AAAC Cable

Aluminum alloy electrical connections are as safe and stable as copper wire connections. The composition of the アルミニウム合金 greatly improves its bonding properties. When the conductor is annealed, the added iron creates a high-strength creep resistance that ensures the stability of the connection even if the joint is overloaded and overheated for extended periods of time.

Self-weight Bearing Capacity of AAAC Cable

Aluminum alloy can improve the tensile strength of pure aluminum. Aluminum alloy cables can withstand 4,000 meters of self-weight. And copper cables can only support 2,750 メートル.

The inherent corrosion resistance of aluminum is due to the formation of a thin and strong oxide layer on the surface of aluminum when it comes into contact with air. It is especially resistant to various forms of corrosion. Aluminum can withstand harsh environments, so it is widely used in cable conductor trays, as well as many industrial components and containers.

Corrosion is often associated with the joining of dissimilar metals in wet environments, and appropriate protective measures can be taken to prevent corrosion, such as lubricants, antioxidants and protective coatings.

Alkaline soil and some types of acidic soil environments are highly corrosive to aluminum, so directly buried aluminum conductors should be insulated or molded with a sheath to prevent corrosion. In containing environments such as railway tunnels, the corrosion resistance of aluminum alloy are significantly better than copper.

The flexible aluminum alloy has good bending properties. Its unique alloy formula and processing technology greatly improve the flexibility. The flexibility of aluminum alloy is 30% higher than that of copper. And the rebound rate is 40% lower than that of copper. Then the bending radius of cable is 10×20 times, while the bending radius of the aluminum alloy cable is only 7 回. It is easy to connect.

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