Aluminum wire is better or copper wire, copper clad aluminum wire is better or pure aluminum wire

Regarding the question of whether copper wire or aluminum wire is better for home improvement wires, choose different wires according to different functions.

Advantages of copper wire: low resistivity; Good ductility; High intensity; anti-fatigue; Good stability; High ampacity; voltage loss bottom; Low calorific value; Low electrical loss; Antioxidant; Convenient construction.

Disadvantages of copper wire: copper wire is high, the specific proportion is large, and the comprehensive cost is high.

Advantages of aluminum wire: cheaper; Small specific gravity, that is, light weight; Oxidation resistance, corrosion resistance.

Disadvantages of aluminum wire: low conductivity, large electrical loss, poor tensile strength, low corrosion resistance, the joint part is particularly easy to oxidize, if it is connected with the copper wire, the joint part is more prone to corrosion due to the potential difference, and it is easy to cause circuit opening and estimation.

Aluminum wire aluminum wire is a linear material made of aluminum, it is a solid pressure machined product with a uniform cross-section along its longitudinal length and is delivered in rolls. The cross-sections are circular, elliptical, square, rectangular, equilateral triangle, and regular polygon. Characteristics and applicationsDue to the high strength and good fatigue strength of aluminum alloy, it is widely used in aircraft structures (skin, skeleton, ribs, frames, etc.).

Rivets, missile structures, propeller assemblies and other structures. 2024 aluminum alloy with a density of grams and centimeters (pounds and inches). Tensile Strength B(MPa) 425 Conditional Yield Strength Sample Size:

All wall thicknesses are annealed and newly quenched in good formability, and the heat treatment strengthening effect is remarkable, but the heat treatment process is strict. Poor corrosion resistance, but pure aluminum coating can be effectively protected; It is easy to crack when welding, but it can be welded or riveted by a special process. Copper wire is used to refer to the copper wire of the telegraph.

It has good conductivity and is widely used in the manufacture of wires, cables, brushes, etc. It has good thermal conductivity and is often used in the manufacture of magnetic instruments that must be protected from magnetic interference, such as compasses, aviation instruments, etc. Excellent plasticity, easy to hot and cold pressing, can be made into tubes, rods, wires, belts, strips, plates, foils and other copper materials.

There are two types of pure copper products: smelted products and processed products. Advantages and disadvantages of copper wire:

Advantages: strong electrical conductivity and high mechanical strength. Cons:

High cost. Aluminum wire: Pros:

Light weight, good conductivity and low cost. Disadvantages: low mechanical strength, easy oxidation.

Is it better to have aluminum wire or copper wire Copper wire is better. The reasons are: 1. Load power:

For copper wire and aluminum wire with the same cross-sectional area, the load power of copper wire is greater than that of aluminum wire. 2. Flexibility: copper wire has better flexibility, easy bending, and strong fatigue resistance.

Aluminum wire is comparatively easy to break when bent. 3. Stability: Aluminum wire is very easy to oxidize, so that the resistance becomes larger, the load of the wire is reduced, and safety problems are easy to occur.

However, the stability of the copper core is excellent. 4. Resistivity: The resistivity of copper wire is small, and the resistivity is lower than that of aluminum wire, which leads to a large power consumption loss of aluminum wire and serious heating, which affects the utilization rate of electricity.

1. Copper wire: 1. Advantages: good electrical conductivity and good thermal conductivity.

2. Disadvantages: **More expensive than general wires.

2. Aluminum wire: 1. Advantages: Under the condition of the same quality and diameter, the length ratio of copper-clad aluminum wire to pure copper wire is:

1:1, which greatly reduces the cost of cable production; Copper-clad aluminum wire is more malleable than pure copper wire, and unlike aluminum, it will generate insulating oxides, so it is easier to process;

The copper-clad aluminum wire is light in weight and easy to transport, install and construct. Because the mechanical properties of copper-clad aluminum wire and pure copper wire are not exactly the same, attention should be paid to it during engineering construction, and experience should be continuously accumulated.

2. Disadvantages: The melting point of aluminum wire is low.

When transmitting high-frequency signals, copper-clad aluminum wire is better than pure aluminum wire; Neither is allowed to be used when it comes to transmitting electrical energy.

Due to the "skin effect" of high-frequency signals, copper-clad aluminum wire and copper-clad steel wire have the same conductivity as pure copper wire when transmitting high-frequency signals (greater than 5MHz).

Because the conductivity of aluminum is only 2 3 of copper, the national standard stipulates that all wires and cables used to transmit electrical energy must use non-metal-plated or metal-plated annealed copper wire as conductors, and it is forbidden to use aluminum wires (including copper-clad aluminum wires) as conductors.

Kiss very high answer to the answer for you, my answer is as follows<>

Copper-clad aluminum wire is good, the following is my personal experience, I hope it can help you Copper-clad aluminum wire is better than pure aluminum wire. Because of the skin effect of the current, because a layer of copper is wrapped outside the aluminum wire, because the resistivity of copper is low, when passing through the same size of current, the copper-clad aluminum wire is less heated than the aluminum wire, and the degree of insulation aging is also reduced. Because of the coating of copper on the outside of the aluminum wire, the oxidation rate of the lead width of the wire is reduced, and the service life of the wire is longer.

To sum up: copper-clad aluminum wire is better than pure aluminum wire.

Hello! 1. **Different, aluminum wire** is much lower than copper wire, normal copper wire ** is twice that of aluminum wire, and copper wire is heavier than aluminum wire. 2. The flexibility is different, the flexibility of copper wire is more excellent, the deformation is simple, and the fatigue resistance is strong, and the aluminum wire is very easy to break when bending.

There are aluminum wires and copper wires for cables, so how to choose? PCHOUSE will introduce to you today which is better, aluminum wire cable or copper wire cable.

1. Aluminum wire and cable 1, advantages **cheap, copper is the second time of aluminum, and the specific gravity of copper is twice that of aluminum, so aluminum wire is cheaper than copper wire, suitable for low-capital projects or temporary electricity. The weight of aluminum wire cable is 40% of that of copper wire cable, and the construction and transportation cost is low. Aluminum wire is oxidation resistant and corrosion-resistant, and aluminum wire is a necessary material for high-voltage, large-cross-section, and large-span overhead power transmission.

2. Disadvantages Aluminum wire has a high failure rate, is easy to break, and is easy to heat.

2. Copper wire and cable 1, advantages.

The resistivity of aluminum wire cable is about two times higher than that of copper wire cable. Copper alloys have high ductility and high strength, especially at high temperatures. Aluminum is easy to break when repeatedly bent, but copper is not easy.

In terms of elasticity, copper is also about twice as high as aluminum. Due to the low resistivity, the allowable current carrying capacity (maximum current) of the copper wire cable of the same cross-section is about 30% higher than that of the aluminum wire cable. Copper wire cable has a long transmission distance and low voltage loss.

Under the same current, the heat generation of copper wire cable with the same cross-section is much smaller than that of aluminum wire cable, and the operation is safer. Due to the low resistivity of copper, compared with aluminum cables, copper cables have low power loss, which is conducive to improving power generation utilization and protecting the environment. 2. Disadvantages.

The copper wire is high and the proportion of copper wire is large, which determines the high cost of copper wire.