What is required for terminal connections to ensure safety and reliability?

Proper torque values are essential for terminal connections to ensure safety and reliability because they help maintain the integrity of the electrical connection. When terminal connections are made, applying the correct amount of torque is crucial to secure the conductor to the terminal without damaging either the conductor or the terminal itself. Insufficient torque can lead to a loose connection, which may result in increased resistance, overheating, and potentially electrical arcing, creating a fire hazard. Conversely, excessive torque can physically damage the terminal or conductor, leading to failure.

The significance of torque values is addressed in various sections of the National Electrical Code (NEC), as improper connections are a common source of electrical failures. Therefore, adhering to specified torque values is a critical practice for ensuring that terminal connections are secure, safe, and reliable in electrical systems. Properly torqued connections minimize the risk of issues such as power loss, overheating, and equipment failure, which can result in costly repairs and safety hazards.