What is the required identification for a main bonding jumper with only a screw as specified by the NEC®?

The requirement for the identification of a main bonding jumper is that it must be painted green. This specification is in line with the National Electrical Code (NEC), which mandates that green or green with yellow stripes be used for identifying grounding conductors and bonding jumpers. The significance of this color coding is to provide instant recognition that the conductor is related to grounding and bonding, thereby promoting safety and reducing the likelihood of accidental disconnection or improper handling.

In this context, while other options may describe varying features or attributes of a bonding jumper, the NEC specifically states the necessity of the green identification to clearly communicate its function as a grounding component. This coding aids anyone working on or near electrical systems to easily distinguish grounding devices from other electrical conductors, crucial for maintaining safety protocols in electrical installations.