Which item is recommended to protect cables when passing through bulkhead openings?

• A. Grommets
• B. Electrical tape
• C. Screws
• D. Zip ties

Answer: (A)

Protecting cables from sharp edges and movement when passing through bulkhead openings. A grommet provides a soft, protective sleeve that shields insulation from the metal edge and distributes stress from vibration, preventing chafing and damage as cables pass through the opening. It also helps keep cables in place and can aid in sealing the opening against moisture or dust in some setups. Electrical tape doesn’t stop edge wear and can loosen or deteriorate over time; screws create sharp changes and aren’t a through-path for cables; zip ties may secure cables but offer almost no protection against edge abrasion and can pinch or fail to prevent wear. Using the right-sized grommet is the reliable way to extend cable life and maintain safe routing through bulkheads.