Is a bonding bushing on the flex connector inside the box required if the 3/4" KO was compromised in a flex lighting tail installation?

A bonding bushing is indeed required if the 3/4" knockout (KO) has been compromised in a flexible lighting tail installation. The purpose of a bonding bushing is to ensure that there’s a proper ground connection between the flexible conduit and the electrical box, maintaining continuity of the grounding pathway.

When a KO is compromised, it can lead to potential exposure of conductive surfaces, which increases the risk of an electrical fault or shock hazard. The bonding bushing acts as a protective measure that not only grounds the flexible conduit but also protects against mechanical damage to the conductors within. This ensures that if a fault occurs, the grounding system will activate correctly and the circuit will trip, thereby reducing the risk of electrocution and fire.

Additionally, adhering to the National Electrical Code (NEC) regulations is essential for safety and compliance in electrical installations. Using a bonding bushing in this situation aligns with those safety standards, ensuring that the installation is both safe for use and up to code.