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In the countryside, the house is electrified, with copper wire or aluminum wire, this has advantages and disadvantages, but now the electricity consumption in the countryside is larger, many people will choose copper wire, aluminum wire is used to pull electricity for the house, in order to be cheap, and at that time there was not so much electricity consumption to choose aluminum wire, copper wire in safety performance is still relatively safe. <>
Respective advantages and disadvantages of copper and aluminum wires:
Advantages of aluminum wire: The biggest advantage of aluminum wire is that it is much cheaper than copper wire, and the advantage of aluminum wire is that it is much lighter than copper wire, and it is a common overhead line in life.
The wires are all made of aluminum wires.
Disadvantages of aluminum wire: The biggest disadvantage of aluminum wire is that the current carrying capacity of aluminum wire with the same cross-sectional area is higher than that of copper wire.
Check a lot, basically one level is worse, for example, the current carrying capacity of 6 square aluminum wire is only equivalent to the current carrying capacity of 4 square copper wire; There is also poor mechanical strength, if it is a concealed wire, try not to use aluminum wire. <>
Advantages of copper wire: The advantage of copper wire is that the current carrying capacity is much higher than that of aluminum wire with the same cross-sectional area, which is one grade worse; In addition, the mechanical strength is much higher than that of aluminum wire, so copper wire is used for the wires of buried circuits.
Disadvantages of copper wire: The biggest disadvantage of copper wire is that it is high, much higher than aluminum wire, and another disadvantage of copper wire is that its weight is relatively heavy. <>
When pulling electricity to the house in the countryside, you should know that due to the increase in household electricity consumption, such as the addition of a lot of electrical appliances, the current required is much higher than before, so the current carrying capacity of the wire is also required to be high, and from this point of view, copper wire should still be selected; In addition, the circuit layout in many homes is also used in the way of buried pipe threading, it is recommended not to choose aluminum wire, to choose copper wire, because the wire should be subjected to a lot of force when the buried pipe is threaded.
**On the case, aluminum wire does save a lot of money than copper wire, but in terms of safety, you still have to choose copper wire, even if aluminum wire is cheap, it can't save much money, and it may lead to replacing electricity in the future, so it's not worth it.
In real life, when pulling electricity in the countryside, don't save any money, after all, copper wire is durable and has good safety performance, so you should choose carefully when pulling electricity.
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I feel that copper wire is still used, in terms of the carrying current capacity of copper wire and aluminum wire, copper wire of the same quality can carry more current than aluminum wire, and the ductility of copper wire is also higher than that of aluminum wire, 30% of copper wire and 18% of aluminum wire.
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In the countryside, it is better to use aluminum wire than copper wire to electrify the house. Because the electricity power in rural areas is small, aluminum wire is sufficient, and the cost of aluminum wire is lower than that of copper wire.
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Copper and aluminum have the same electrical conductivity. But aluminum costs more than copper. Therefore, in the countryside, it is better to use copper wires to pull electricity for houses, and copper has more resources on the earth than aluminum.
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Dear, hello, I'm glad to answer for you, is the line used on the rural pole copper wire or aluminum wire A: The line generally used on the rural pole is copper wire The rural circuit wiring can not always be straight, there will always be a place where the rib is bent, so when purchasing wires, it is also necessary to pay attention to the ductility of the wire, which is also a very important point. In terms of the ductility of wires, the ductility of copper wire is much higher than that of aluminum wire, generally speaking, the ductility of copper is 30%, while the ductility of pure aluminum is 18%.
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Regarding the question of whether the home improvement wire is better than copper wire or aluminum wire, choose different wires according to the role of not the same as the blade.
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: ** It is suitable for silver burning; The specific gravity of small potatoes and 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.
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Copper wire is better than aluminum wire for safety and durability! Compared with aluminum wire, copper wire is more expensive.
1: For copper core and aluminum core wires with the same cross-sectional area, the load power of copper wires is greater than that of aluminum wires. For example, if they are all square wires, then assuming that the aluminum core can load 2500 watts, then the copper core can carry 3000 watts.
Note: The numbers here are just figurative and have not been calculated).
Second: aluminum cables are very easy to oxidize, so that the resistance becomes larger, reducing the load of wires, and it is easy to cause safety problems. The copper core is very stable.
Three: the resistivity of the copper core wire is small, and the resistivity of the aluminum cable is higher than that of the copper core cable, which leads to the large power consumption loss of the aluminum core wire, and the heat generation is more serious, which affects the utilization rate of electricity.
Four: the copper core wire is very flexible, easy to bend, and has strong fatigue resistance. Whereas, aluminum-core wires are prone to break when bent.
Five: the aluminum core is cheaper than the copper core, the copper core is higher than the aluminum core, and the copper wire is heavier than the aluminum wire.
Through the introduction of the above five points, the difference between copper wire and aluminum core wire is very obvious, which is why copper core wire is now commonly used in families. In addition, the wires are worn in the pipes and hidden in the walls, and it is very difficult to repair if there is a problem. Here it is recommended that you do not save so much money in terms of wires, and try to choose copper core wires as well.
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Each has its own strengths, at present, the urban and rural household line power departments are using aluminum core wire, as for the line connected to the meter, the use of aluminum wire or copper wire, according to the specific situation of the family.
1) Among the four materials of gold, silver, copper and aluminum, under the same conditions, the conductivity is in order: silver, copper, gold and aluminum. Note that the same conditions referred to here refer to:
Same length, same cross-sectional area, same temperature. These conditions are not the same and are not comparable. These properties are also called the resistivity of the material.
2) Gold and silver** are too expensive to be used as wires; Copper and aluminum are both good materials for making wires, but copper is not suitable for long-distance transmission lines, because of the high density and large mass (weight), it cannot be pulled over long distances; The density of aluminum is small and can stretch a long distance, but its conductivity is worse than that of copper, and it is not as good as copper.
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Hello dear! 1. Is it better to use aluminum wire or copper wire for outdoor wires? Outdoor wires are basically aluminum wires, while indoor wires are mostly copper wires, because the power of the line is P=UI, so because it is a high-voltage line current is relatively small.
Moreover, the toughness of aluminum wire will be better than that of copper wire. ** It's also very cheap. As long as it can meet the load of the line, there is no need to use copper wire.
And they are lighter and thicker than copper wires that are subjected to the same current. Due to its low density and wide range of materials, aluminum is widely used in overhead transmission lines in some power systems to transmit electricity. In order to solve the defect of insufficient rigidity of aluminum, the steel core aluminum stranded wire is generally used now, that is, the aluminum stranded wire is wrapped with a steel wire inside, so that the strength can be improved.
2. What is the difference between aluminum wire and copper wire? 1. Load power The load power of copper wire and aluminum wire with the same cross-sectional area is greater than that of aluminum wire. Here's an example:
Both are square wires, so let's say the aluminum wire can load 2500 watts, then the copper wire can carry 3000 watts. (Note: Here is a metaphor without an actual budget) 2. Flexibility Copper wire is more flexible, easy to bend, and has strong fatigue resistance.
Aluminum wire is relatively bent when it is bent.
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Copper wires for household use are good.
Difference Between Copper Wire and Aluminum Wire:
1: Copper wire has high mechanical strength and is not easy to break.
2: The copper wire is chemically stable and not easy to fail; The chemical properties of aluminum wire are unstable and easy to oxidize, especially the poor oxidation contact at the joint is easy to fail.
3: The resistivity of copper wire is small and the current carrying capacity is large; Aluminum wire has high resistivity, small current carrying capacity, and is easy to heat.
Therefore, copper wires are now used for household electricity.
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The copper wire is high and the proportion of copper wire is large, which determines the high cost of copper wire. There are many advantages in performance as a cable, but the cost is high!
Copper wire has good electrical conductivity, low resistivity, good thermal conductivity, high strength, and tensile resistance, which is better than that of aluminum wire.
Aluminum wire displacement has the advantage of low cost and light weight, but the failure rate is high, easy to break, and easy to heat.
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Copper wire: advantages of strong conductivity, high mechanical strength, disadvantages: high cost.
Aluminum wire: advantages Light weight, excellent conductivity, low cost. Disadvantages: Low mechanical strength, easy to oxidize.
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When the cross-sectional area is equal, copper wire conducts electricity better than aluminum wire. Aluminum wire is cheaper than copper wire.
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Most often, copper wire is good.
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