Thick wire used for heavy-duty power applications.
Thin wire used for electronics, jewelry making, and "electroculture" gardening. 2. Insulation Type buy pure copper wire
Price is often the first giveaway. If the deal seems too good to be true, it might be Copper Clad Aluminum (CCA). CCA is an aluminum core with a thin skin of copper. While lighter and cheaper, it has higher resistance and is prone to breaking. Thick wire used for heavy-duty power applications
Pure copper has the highest electrical conductivity of any non-precious metal. This means less energy loss and less heat buildup. Insulation Type Price is often the first giveaway
The thickness of the wire, measured in American Wire Gauge (AWG), is the most critical technical spec.
To ensure you aren't buying a sub-par alloy, check for standards or UL (Underwriters Laboratories) listings. These certifications guarantee that the wire meets strict safety and purity requirements. How to Spot "Fake" or Low-Quality Copper