Copper vs. Aluminum Wiring: Pros, Cons & When to Use Each

• Wire
• Cable
• NNC
• Electrical

• 

  Garrie Nassau

  2/27/25, 12:53 PM

  

  Copper Wiring

  ✔️ Higher conductivity – Transfers electricity efficiently.

  ✔️ Durable & flexible – Resistant to corrosion and bending.

  ✔️ Best for: Homes, commercial buildings, and sensitive electronics.

   

  Aluminum Wiring

  ✔️ Lightweight & cost-effective – Cheaper than copper.

  ✔️ Good for long distances – Used in power grids & overhead lines.

  ✔️ Best for: Large industrial projects & high-voltage transmission.

   

   Key Considerations for Copper and Aluminum

  🔹 Copper is safer for household wiring due to lower fire risk.

  🔹 Aluminum expands & contracts more, requiring special connectors.

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