Copper is known to conduct electricity better than aluminum. Copper wires are more expensive and aluminum wires are relatively inexpensive, but they are corrosive and can cause fires. Let's discuss each type of wiring separately. Copper wire is generally better than aluminum wire. copper wire Copper wire is generally better than aluminum wire. The tensile strength of copper is 40% higher than that of aluminum, so copper does not break easily. Aluminum wire Aluminum is also a common material for making electrical wires. Unfortunately, aluminum wire is not as strong as copper wire and has a higher coefficient of thermal expansion. However, there are still advantages to using aluminum wire. Aluminum wire is mostly safe, although there are some special considerations when handling it. 
In most cases, homeowners have no problems with aluminum wiring, but when an outlet or conductor is installed incorrectly, there is a very dangerous potential. While running AL wire continuously isn't necessarily a problem, when the wire connects to outlets and light switches—or even to other wires in the junction box—the connection can become damaged and become a fire hazard. Aluminum has 61% the conductivity of copper, but only 30% its weight. This means that bare aluminum wire weighs half as much as bare copper wire of the same resistance. Aluminum is generally cheaper than copper conductors. The capital cost of coolers equipped with copper condensing coils is higher than aluminum condensing coils. However, considering that the air conditioner is a capital equipment with a lifespan of about 10 years, the life cycle cost should be normal. Alternating current with dense copper coils performed significantly better than alternating current with dense aluminum coils. ACs with dense copper coils are superior in energy efficiency, resulting in much better savings on monthly electricity bills. 
Aluminium vs Copper Wire Resistance
The conductivity of aluminum is about 60% that of copper, which means that copper has a lower electrical resistance than aluminum. Therefore, it can be concluded that aluminum has greater resistance compared to copper. We all know that resistance is inversely proportional to cross-sectional area. Therefore, for the conductivity of aluminum, less area and weight are required to transmit a certain voltage than copper. While copper conducts electricity better, we mainly use aluminum and steel to conduct electricity due to the lower cost of materials. But this is only true if the resistances are never equal. But if the two metals are at different temperatures, they can be equal because the resistance is not constant with temperature and has a significant temperature coefficient. Their resistances are close, so they don't need a large temperature difference to match them, well below the melting point. So, in some pairs of different temperatures, they can be equal, in which case the resistances will also be equal based on the same physical dimensions. 
Aluminum has a higher electrical resistance, and both metals have a positive resistivity, which means it increases when heated. So, if we raise the temperature of the copper wire and lower the temperature of the aluminum wire, yes, the final resistance can equalize. at several pairs of temperature points. Both copper and aluminum are good conductors. Due to other considerations, better copper is not always used in some applications. It is heavier than aluminum and cannot always be used in installations that require long lengths, such as power transmission lines that can be several miles long. Copper is slightly softer than aluminum and will sag too much if used on long unsupported lines. Copper also oxidizes easily and can make poor electrical contact. In applications with shorter wires, such as electronics and electrical equipment, copper is preferred because it can be bent without cracking easily. Oxidation problems are easily solved by welding current at the ends of wires that require good and reliable electrical contact. 
Aluminum vs Copper Wiring in House
Aluminum and copper are connected in the house. How to check if our house has aluminum and copper wiring? What do I do when we have wires in the house that mix aluminum and copper? Solution for aluminum and copper wires There are only two solutions: 1. Rewire the whole house. This is the best way, but in most cases, it is not the cheapest and most practical way! Who removes all the drywall to access and re-feed the wires? Now, if you are ungrounded in your home and have copper cladding, this is a great solution to switch both at the same time. 2. Two patented materials are used to connect aluminum and copper pigtails to the device. This is the most economical way! U.L is very important. Listed equipment (AL/CU, AL/CO and ALO equipment are not rated for use) and correct installation procedures must be performed by a licensed and insured electrician. The electrical contractor must be experienced in this method. Don't hire handymen who only do new construction or even electrical contractors. A "DIY" method is to put dioxane in the wire cap. it is not working! It is also illegal, causes fire and dries out. Rewiring an entire house can be expensive. 
It really depends on the size of your home and your jurisdiction. To give you an idea, the cost of the pigtail method includes materials and installation. Yes, it is time consuming, but much less than rewiring the entire house. Mixing aluminum and copper seems like a simple problem that calls for an easy solution but beware the customer. There is a special method for the correct installation of aluminum-copper joints. If not done well, we waste money or even burn down our houses. Special measures can be taken to keep aluminum wiring safe, and some households may already take these measures. The first step to making the wiring in our home safe is to have a licensed electrician perform an electrical inspection. Once we know the condition of our wiring, we can determine if we need to implement safety measures or completely rewire. 
Why Aluminium is Preferred Over Copper
Why is copper better for home wiring than aluminum, even though copper is more expensive? It's more flexible (easier to pull in wires), has higher tensile strength (self-supporting at longer lengths), and is more conductive than aluminum (cheaper if you pay the electricity bill because there are less losses). The list of pure metals (i.e., non-alloys), sorted by conductivity, is silver, copper, gold, aluminum, zinc, at the bottom of the list. Gold had a big breakout after that. Copper is about twice as conductive as aluminum. Which one you select to utilize is a building choice. Copper is usually chosen as the electrical conductor because it offers the most favorable cost-benefit ratio in most applications. 
Using aluminium in certain applications - which many long-distance high-voltage transmission lines are - sometimes other metals are chosen, especially when the conductor part must also carry some structural load. Aluminum is more electropositive than copper, so when a piece of bare aluminum is put into a copper solution, the aluminum dissolves in the solution and the Cu+2 on the aluminum surface reduces to copper and sticks there. In fact, overhead cables are very complex and multi-stranded, external, and main current-carrying aluminium is particularly well suited for low current and resistance due to the skin effect with AC power. Other strands are stronger and have steel in the center for good tensile strength, and some newer cables use a different, lighter material in the center for increased tensile strength. In high frequency electronic circuits, we sometimes use silver plated stranded copper wire for high frequency. For long, heavy cables, aluminum is preferred because it has higher tensile strength and lower density than copper and is much less expensive. A problem with aluminum for general wiring is that it is difficult to make electrical connections. Aluminum rapidly forms a poorly conductive hard surface oxide that makes soldering and mechanical connections difficult, exacerbated by its high thermal expansion. 
Difference Between Copper and Aluminium
The difference between aluminum and copper wire is primarily in their application, electrical resistance, conductivity, weight, and cost. Utilities have been using aluminum to transmit electricity since the early 1900s. In terms of weight, flexibility, and cost, aluminum appears to be superior to the old copper wire because it is lighter. more flexible, and cheaper. Aluminum wire is more popular than copper wire due to the rising price of copper, so aluminum wire is affordable. Aluminum alloy construction wire, known as alloy 800, is also used in low-voltage feeders, saving money compared to copper, which is significantly heavier. Aluminum construction wire is half the weight of copper and has 50% more area than copper to carry the same current, but aluminum wire requires a larger gauge than copper to carry the same weight. Rising copper prices also led to the use of aluminum wire in the 1970s. 
When aluminum wire is installed correctly, it can be as safe as copper wire, which is inexcusable when installed incorrectly. Not only is copper more conductive than aluminum, it is also more ductile, has relatively high tensile strength, and can be welded. Aluminum is less conductive, about 60 percent of copper, but its light weight allows it to achieve long spans. Aluminum wire has the phenomenon of "cold creep" because it expands when heated and contracts when cooled. Copper is less likely to lose hermetic properties than aluminum. Aluminum oxidizes and corrodes in contact with certain types of metals, while copper is safer and more durable than aluminum. Aluminum and copper wires can also be spliced together, but this requires extra care, because if the wires are not spliced together using a special crimping device or anti-oxidizing grease, they may catch fire if the conductors heat up. 
Copper Wire vs Aluminum Wire in AC
Never use aluminum wire in your home. If you have aluminum wiring in your home, replace it with copper wire immediately. 2.5mm2 aluminum wire is equivalent to 1.5mm copper wire, which is not enough for 1.5 tons of alternating current. Copper pipes are used in air conditioners to transport refrigerant gas between the indoor and outdoor units of the air conditioner. Copper pipes can also be found in heat exchangers inside air conditioners. The warm exchange coefficient of copper is higher than that of aluminum. Copper is a better material than aluminum. Copper is more expensive than aluminum, which increases the value of making the air conditioner, which increases the value of the air conditioner. Copper is more expensive than aluminum, which increases the value of making the air conditioner, which increases the value of the air conditioner. To reduce the AC value of copper coils, copper coils are now made thinner and thinner. Copper is easier to repair underground than aluminum. Usually, aluminum coils are replaced when damaged. Coils made of copper are much more grounded than aluminum. Therefore, they are durable. The capital cost of coolers equipped with dense copper coils is higher than that of aluminum coils. 
However, considering that air conditioners are capital equipment with a life expectancy of around 10 years, life cycle costs should be the norm. AC with dense copper windings is much more efficient than AC with dense aluminum windings. Alternating current with dense copper coils has advantages in terms of energy efficiency and therefore better savings on monthly electricity bills. Most air conditioners use one of two metals for their pipes - aluminum or copper. Aluminum plumbing is slowly becoming obsolete, and most modern coolers today use copper. Both plumbing technologies have their own advantages and disadvantages, so it can sometimes be difficult to choose between them. Compared to aluminum, copper has higher corrosion resistance as a metal. During cooling, the tubes meet air, causing oxidation inside the tubes. Copper can withstand oxidation and corrosion for longer, ultimately making air conditioners last longer. Conclusion: All information mentioned above providing to the buyers who want to know and buy wires and cables and Our vision is to be a standard for customized products and quality services so that we can build a good brand image of our company in the national and international market with competitive prices and cheap shipping services. We are eager to do what we do and strive to further the needs of our customers by providing quality products and services. For more information kindly visit our site.