Which term designates the connectors used to join lines to a grounding bar?

Which term designates the connectors used to join lines to a grounding bar?

• A. Wires
• B. Clamps
• C. Nuts
• D. Lugs

Answer: (D)

Lug is the term for the connector used on a grounding bar. A grounding bus bar provides a common path to Earth for equipment grounding conductors, and lugs are the terminal pieces attached to the bar that receive and secure the conductors with a screw or bolt. Wires describe the conductors themselves, not the connectors; nuts are fasteners that work with bolts but aren’t the connector on the bar; clamps are devices to hold wires in place, but the specific connector type used on the grounding bar is the lug.

Lug is the term for the connector used on a grounding bar. A grounding bus bar provides a common path to Earth for equipment grounding conductors, and lugs are the terminal pieces attached to the bar that receive and secure the conductors with a screw or bolt. Wires describe the conductors themselves, not the connectors; nuts are fasteners that work with bolts but aren’t the connector on the bar; clamps are devices to hold wires in place, but the specific connector type used on the grounding bar is the lug.