What are the best practices in connecting copper wires to aluminum lugs in electrical installations?

What are the best practices in connecting copper wires to aluminum lugs in electrical installations?

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In connecting copper wires to aluminum cable lugs on an electrical installation, best practice should be followed in order to achieve a safe, efficient, and durable connection. Aluminum and copper together have galvanic corrosion and this causes electrical resistance and degradation of the strength of the connection over time. In preventing such problems, the proper materials need to be employed, proper preparation techniques employed, and follow install practices that permit conductivity and system integrity.

One such primary practice is the use of the process of installing a bi-metallic washer or compound in order to avoid metal-to-metal contact. An anti-oxidation compound being used will offer a corrosion reduction as well as a stable electrical connection. The second major practice is the use of proper crimping technique with the right tool in an attempt to provide a solid mechanical connection between the lug and cable. Under-crimping and over-crimping will result in poor conductivity, over-heating, and even breakdown in the connection. The second one is equally important to ensure the lug size matches the cable gauge so that no loose connections develop which can create sparking or resistances.

For applications calling for effective and high-performance electrical contacts, Pioneer Powers has high-grade aluminum cable lugs to provide effective conductivity and long lifespan. Through proper installation based on proper means, their high-grade lugs guarantee safety, effectiveness, and durability in industrial and power supply applications. By adherence to rigid proper best practice in cable-lug joints, companies can reduce maintenance expenses, obtain maximum electrical efficiency, and ensure maximum installation life.