The first consideration in making good electrical connections is the type of conductor ? involved. The NEC recognizes copper, aluminum, and copper-clad aluminum; each of which has different physical characteristics
If conductors of ? materials are to be used, the termination device shall be identified for use with both types
The ? connector utilizes mechanical pressure to establish a splice that maintains excellent mechanical and electrical properties. This type of splicing device is commonly used when tapping one conductor from another.
? are commonly used for both low-voltage and medium-voltage applications. They are easy to use and are frequently found where power distribution conductors terminate in transformers and power panelboards
One disadvantage with lugs is that the termination is subject to influences that might impact the overall reliability of the termination. Vibration or heat cycling might result in a loose connection that raises the resistance of the connection, thus, subjecting the termination ?
to an increased temperature
Compression connectors are also widely used within the electrical industry and can be utilized for both low-voltage and medium-voltage applications. The principle behind the compression connector is the application of ? pressure, either pneumatically or by hand, to ensure the connection