Unbonded clamps are used for support when installing which component?

• A. Metal tubing
• B. Wiring
• C. Both metal tubing and wiring
• D. Neither

Answer: (B)

Unbonded clamps are meant to secure wiring without creating an electrical bond to the airframe. This keeps the wiring electrically isolated so it won’t provide an unintended ground path or interfere with circuit operation. That’s why they’re used for installing wiring. Metal tubing or piping, on the other hand, often needs to maintain bonding continuity to the structure for proper grounding and lightning protection, so those clamps aren’t the unbonded type. So the component best installed with unbonded clamps is wiring.