What type of connections is permitted for grounding and bonding equipment?

The correct answer indicates that connections for grounding and bonding equipment must be part of a listed assembly. This means that the connections have to be made using components that have been tested and approved by a recognized testing laboratory, ensuring safety and reliability in electrical systems. Such assemblies are designed to meet specific standards that ensure they function correctly in various scenarios.

Grounding and bonding systems are critical for protecting both equipment and personnel from electrical faults. Using components that have been part of a listed assembly ensures that the integrity of these systems meets established safety practices and can effectively reduce the risk of electrical shock or fire hazards.

In contrast, loose connections would create an unreliable system that is prone to failure, while single point connections might not provide the necessary current paths for fault currents, which could lead to danger. Temporary connections are not advisable since they can easily be disturbed and do not provide a consistent grounding path. Overall, utilizing connections that are part of a listed assembly is essential for ensuring effective grounding and bonding in electrical installations.