For bonding jumpers, which type of connection is usually required?

The requirement for a secure and permanent connection for bonding jumpers is essential because these connections are critical for electrical safety and system integrity. Bonding jumpers are used to ensure that different conductive parts are electrically connected, allowing fault currents to flow safely back to the source, thereby minimizing the risk of electric shock or fire. A secure and permanent connection helps maintain a continuous electrical path, reducing the likelihood of interruptions or failures that could compromise safety.

In grounding and bonding practices, temporary connections or loose connections would not provide the necessary stability and reliability required for effective bonding. Welded connections, while strong, are not typically the standard for bonding jumpers as they can be impractical for maintenance and modifications. Therefore, the secure and permanent connection is the preferred method to ensure that the bonding system is effective and compliant with safety standards.