What type of jumper ensures the required electrical conductivity between metal parts that need to be connected?

The appropriate type of jumper that ensures the required electrical conductivity between metal parts that need to be connected is the bonding jumper. A bonding jumper is specifically designed to establish an electrical connection between conductive materials, ensuring that they are at the same potential and thus reducing the risk of electric shock or equipment malfunction. This is crucial in electrical systems to ensure safety, as it helps to prevent the build-up of voltages that could lead to hazardous conditions.

Bonding jumpers are typically used in situations where a direct connection may not be sufficient or where it is necessary to interconnect non-electrically conductive parts like metal enclosures, conduits, or service equipment. By using bonding jumpers, a reliable electrical path can be maintained, which is vital for the effectiveness of grounding systems and overall electrical safety.

The other types of jumpers mentioned serve different purposes within electrical systems. Grounding jumpers are used to connect grounding conductors to equipment or grounding systems, while service jumpers are specific to service connections. Metallic jumpers sometimes refer to conductors made of metal that may serve various electrical purposes but do not specifically denote the functionality of establishing equal potential between separate metal components as bonding jumpers do. This distinction underlines the importance of understanding the specific role of bonding