Which type of conductors is required to be bonded according to NEC standards?

The requirement for bonding conductors according to NEC standards primarily pertains to equipment grounding conductors. Equipment grounding conductors are specifically designed to provide a path for fault current to ensure that electrical equipment remains at ground potential, thereby reducing the risk of electrical shock or fire.

Bonding these conductors establishes a low-resistance path that ensures electrical continuity and proper function of overcurrent devices during a fault condition. This is essential for the safety and protection of both equipment and individuals. By ensuring a reliable ground path, equipment grounding conductors help to mitigate the potential hazards that could arise from stray voltages or electrical faults.

Other types of conductors, while they may have their own specific requirements, do not have the same bonding necessity as equipment grounding conductors. For example, service conductors are primarily meant for the supply of electrical power and may not require the same level of bonding as those designed specifically for grounding purposes. Therefore, the emphasis on equipment grounding conductors aligns with NEC standards that prioritize safety in electrical installations.