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Copper Wire vs Aluminium Wire: What’s the Difference

Copper Wire vs Aluminium Wire

If you’re looking to purchase electrical wiring for your home or business, you may wonder about the differences between copper and aluminum wires. Both materials have their advantages and disadvantages, which we will explore in more detail. Understanding these differences is important for choosing the right type of wire for your project.



Copper Wire vs. Aluminium Wire: Pros & Cons

When it comes to electrical wiring, copper is the preferred material due to its superior conductivity and strength. Copper is also lightweight, corrosion-resistant, and easy to work with. On the other hand, aluminum has a lower conductivity than copper but is much cheaper and stronger than copper at high temperatures. Additionally, aluminum is easier to bend than copper, making it ideal for tight spaces where flexibility is important.

However, there are some drawbacks to using aluminum wiring instead of copper. One major issue is that aluminum can corrode quickly if exposed to moisture or air pollution; this can lead to arcing or sparking, which can cause fires or other serious problems. Furthermore, since aluminum has a lower conductivity than copper, it requires larger gauges (thicker wires) in order to transmit electricity efficiently; this means that more space needs to be allocated for wiring with aluminum compared with copper wire. Lastly, connecting several pieces of aluminum wire together carries an increased risk of fire compared with connecting several pieces of copper wire together due to greater resistance in the connection point caused by oxidation of the metal at joints over time.

Other Differences

  • Copper is a better conductor of electricity than aluminum.
  • Copper is more expensive than aluminum.
  • Aluminum is more lightweight than copper.
  • Aluminum is more corrosion-resistant than copper.
  • Copper has a higher melting point than aluminum.
  • Aluminum is more electrically resistant than copper.




Both types of wire have pros and cons when it comes to electrical wiring projects – so it’s important that you understand them before deciding on which type of wire to use. Ultimately, your choice should depend on what type of application you need the wiring for as well as your budget constraints; if cost isn’t an issue, then using copper may be best due to its superior conductivity, while if cost is an issue, then using aluminum may be best due its lower price point and greater strength at higher temperatures. Whichever option you choose, make sure that you follow all safety precautions when installing any kind of electrical wiring!

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