Which component protects wires from the sharp edges of conduit and is joined to the metal?

• A. Conduit Bushing
• B. Cable Gland
• C. Grommet
• D. Strain Relief

Answer: (A)

Conduit bushings are the protective rings placed at the end of a metal conduit where wires enter. They create a smooth, sharp-edge-free entryPoint, shielding insulation from nicks and abrasion as wires pass through or into a box. They are designed to be joined to the metal part of the system, often threading into the conduit or box so the edge is securely covered. This is exactly what protects the conductors at the conduit entrance.

Other fittings serve different purposes: a cable gland seals and secures cables entering equipment, a grommet cushions a wire hole but isn’t specifically tied into the metal edge of conduit, and a strain relief mainly stops the cable from being pulled and stressed rather than guarding the edge.